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AltF Backlinks

Free backlink sites list: 1,964 places to get a link

A maintained list of 1,964 legitimate backlink sites: directories, profile creation sites, guest posting sites, launch platforms, registries and marketplaces. 1,628 are free or have a free tier, 44 usually give a dofollow link, and 781 have an estimated DA of 70 or more. Every row shows authority, link type, cost and effort, and links straight to the submit page.

1,964
Opportunities
1,628
Free or freemium
781
Est. DA 70+
208
Quick wins

1–100 of 165 opportunities

The table is wider than the screen — swipe it sideways for cost, effort and the preparation notes.

Submission opportunities with impact score, cost, effort, priority, status and preparation notes. Scroll horizontally for all columns.
#Impact (sorted)Site — sort by thisEst. DA — sort by thisLinkDomainTypeCostEffort — sort by thisPriorityStatusWhat to prepareRules / caveatCheckedActions
1100RapidAPI Hub80Link type unknownrapidapi.comMarketplaces and app storesFreeQuickDo firstVerified liveList a stable your tool API with OpenAPI definitions, clear endpoints, health checks and its official website in the permitted listing field.The API must be functional, accurately documented and securely operated; avoid listing browser-only tools as fake APIs.2026-08-03Open RapidAPI Hub submit page (new tab)RapidAPI Hub details
298Dify Marketplace65Link type unknowndify.aiMarketplaces and app storesFreeModerateDo firstNot submittedBuild and test a free Dify plugin for a distinct your tool privacy or file-analysis capability, package it, add a privacy policy, and submit the required pull request.Human and automated review checks functionality, uniqueness, value, privacy, and maintenance; acceptance and external-link visibility are not guaranteed.2026-08-03Open Dify Marketplace submit page (new tab)Dify Marketplace details
398Godot Asset Library80Link type unknowngodotengine.orgMarketplaces and app storesFreeModerateDo firstVerified liveCreate a useful Godot editor add-on or privacy-safe asset pipeline tool, release it under an accepted license and submit its repository.Assets must work, include license and README files and pass review; only link to AltFTool where it is part of the asset documentation.2026-08-03Open Godot Asset Library submit page (new tab)Godot Asset Library details
498Google Workspace Marketplace95Nofollowworkspace.google.comMarketplaces and app storesFreeModerateDo firstLive, conditionalBuild an your tool add-on for Drive, Docs, Sheets, Gmail, or another Workspace product and publish it.Must genuinely integrate with Google Workspace and pass OAuth, configuration, and app review.https://developers.google.com/workspace/marketplace/how-to-publishOpen Google Workspace Marketplace submit page (new tab)Google Workspace Marketplace details
598Linear Integration Directory80Link type unknownlinear.appMarketplaces and app storesFreeModerateDo firstNot submittedBuild a maintained Linear integration that sends approved your tool audit findings into issues, then submit its listing and assets.Linear reviews for broad utility and generally rejects scripts, low-effort tools, and hobby apps; listing and outbound-link treatment are discretionary.2026-08-03Open Linear Integration Directory submit page (new tab)Linear Integration Directory details
698Mattermost Marketplace75Link type unknownmattermost.comMarketplaces and app storesFreeModerateDo firstNot submittedCreate a supported Mattermost plugin or app that scans user-approved text for sensitive data before sharing, with docs and a public issue tracker.Submission needs a testable artifact, documentation, icon, bug tracker, and maintained security fixes; review and backlink attributes are discretionary.2026-08-03Open Mattermost Marketplace submit page (new tab)Mattermost Marketplace details
798Microsoft Marketplace100Nofollowmicrosoft.comMarketplaces and app storesFreeModerateDo firstLive, conditionalRegister in Partner Center and publish an your tool SaaS or Microsoft-integrated offer.Requires an eligible Partner Center account, offer configuration, testing, and certification.https://learn.microsoft.com/en-us/partner-center/marketplace-offers/create-new-saas-offerOpen Microsoft Marketplace submit page (new tab)Microsoft Marketplace details
898Replicate75Link type unknownreplicate.comMarketplaces and app storesFreeModerateDo firstVerified livePackage a genuinely useful open model or reproducible AI utility, publish it publicly with examples and cite the related your tool documentation naturally.Discovery requires a public working model, a pushed version, README and example; licensing and model-safety obligations apply.2026-08-03Open Replicate submit page (new tab)Replicate details
998Slack Marketplace95Link type unknownslack.comMarketplaces and app storesFreeModerateDo firstLive, conditionalBuild a production-ready your tool Slack app for safe file/text utilities, then submit it from the app configuration page for Marketplace review.Must be fully functional, installable, tested outside the development workspace, secure, and useful inside Slack; review is strict.https://api.slack.com/directory/app-review-guideOpen Slack Marketplace submit page (new tab)Slack Marketplace details
1086AnkiWeb Add-ons65Link type unknownankiweb.netMarketplaces and app storesFreeQuickHighVerified liveBuild a useful Anki privacy, study-safety, or accessibility add-on, package it as .ankiaddon, and upload it through AnkiWeb.Must be a working desktop add-on; avoid collecting card data, document permissions, and maintain compatibility across Anki releases.Official Anki add-on sharing guide checked 2026-08-05Open AnkiWeb Add-ons submit page (new tab)AnkiWeb Add-ons details
1186Buildkite Plugins Directory70Link type unknownbuildkite.comMarketplaces and app storesFreeQuickHighVerified liveBuild a pipeline plugin that runs your tool checks on selected artifacts and posts configurable pass, warn, or fail annotations.Use a public repository with the required suffix, valid plugin.yml, hooks, tests, and README; add the official topic for directory sync.Official Buildkite plugin writing documentation checked 2026-08-07Open Buildkite Plugins Directory submit page (new tab)Buildkite Plugins Directory details
1286DatoCMS Plugin Marketplace65Link type unknowndatocms.comMarketplaces and app storesFreeQuickHighVerified liveBuild an your tool privacy or security field plugin, publish the npm package, and use your tool as its homepage and support site.The package name must start datocms-plugin-, include the required keyword, and meet Plugin SDK requirements; ingestion is automatic.Official DatoCMS Marketplace publishing documentation checked 2026-08-07Open DatoCMS Plugin Marketplace submit page (new tab)DatoCMS Plugin Marketplace details
1386Directus Marketplace65Link type unknowndirectus.comMarketplaces and app storesFreeQuickHighVerified livePublish a genuine your tool Directus extension to npm and complete author, documentation, support, and website metadata.Requires the Directus extension keyword and metadata; availability depends on supported extension type and matching npm and GitHub author identity.Official Directus Marketplace publishing documentation checked 2026-08-07Open Directus Marketplace submit page (new tab)Directus Marketplace details
1486DokuWiki Plugins70Nofollowdokuwiki.orgMarketplaces and app storesFreeQuickHighVerified liveBuild a DokuWiki privacy, redaction, accessibility, or secure-export plugin, publish its code and create the canonical plugin page used by the extension directory.Must be an installable maintained plugin with accurate compatibility, download, source, license, and security information.Official DokuWiki extension pages and plugin wizard checked 2026-08-05Open DokuWiki Plugins submit page (new tab)DokuWiki Plugins details
1586Eclipse Marketplace90Nofolloweclipse.orgMarketplaces and app storesFreeQuickHighVerified livePublish a functional Eclipse plugin for an your tool developer use case, then create a complete marketplace listing with official support and source links.Requires an Eclipse account, a working installable plugin and compliance with marketplace content and trademark rules.2026-08-03Open Eclipse Marketplace submit page (new tab)Eclipse Marketplace details
1686Framer Marketplace85Nofollowframer.comMarketplaces and app storesFreeQuickHighVerified liveCreate a functional Framer plugin for accessibility, metadata, responsive-content, or privacy checks and publish it with your tool documentation.Test in fresh projects, package the real plugin, provide accurate screenshots and descriptions, and maintain every published version.Official Framer plugin publishing documentation checked 2026-08-07Open Framer Marketplace submit page (new tab)Framer Marketplace details
1786Frappe Cloud Marketplace65Link type unknownfrappe.ioMarketplaces and app storesFreeQuickHighVerified liveBuild a useful your tool-related Frappe app, publish it through Frappe Cloud Marketplace, and include the official project/site link in its genuine listing.App must be open source under an MIT/GPL-compatible licence, stable on Frappe, pass CI, provide support/privacy URLs and accurate imagery/demo; do not use the listing as a link-only redirect.2026-08-05Open Frappe Cloud Marketplace submit page (new tab)Frappe Cloud Marketplace details
1886GeM70Link type unknowngem.gov.inMarketplaces and app storesFreeQuickHighLive, conditionalRegister an authorized Indian business seller and list only real eligible your tool services with accurate catalogue details.Requires authorized entity, Aadhaar/PAN, business PAN, incorporation and bank data; an external backlink is not guaranteed.2026-08-04Open GeM submit page (new tab)GeM details
1986Hexo Plugin List75Link type unknownhexo.ioMarketplaces and app storesFreeQuickHighVerified liveCreate a functional Hexo plugin for a relevant your tool capability, publish the package, then add its record to Hexo's official plugin data repository.Plugin must be genuinely useful, maintained and correctly packaged; submit the required YAML metadata through the documented contribution path, not a promotional-only entry.2026-08-05Open Hexo Plugin List submit page (new tab)Hexo Plugin List details
2086Joplin Plugins60Link type unknownjoplinapp.orgMarketplaces and app storesFreeQuickHighNot submittedBuild and test a Joplin plugin that locally detects or removes sensitive note content, provide a valid manifest and publish a maintained release for discovery.Requires a real installable package, correct plugin manifest and ongoing compatibility; directory metadata and outbound-link handling are platform-controlled.2026-08-03Open Joplin Plugins submit page (new tab)Joplin Plugins details
2186MeltanoHub50Link type unknownhub.meltano.comMarketplaces and app storesFreeQuickHighVerified liveBuild a Singer SDK tap that incrementally extracts your tool audit runs and findings, then add it through MeltanoHub's official issue-assisted or self-service contribution path.Must be an installable, maintained Singer tap with real schemas and incremental state behavior; do not submit a metadata-only package.2026-08-05Open MeltanoHub submit page (new tab)MeltanoHub details
2286NVDA Add-on Store60Link type unknownaddonstore.nvaccess.orgMarketplaces and app storesFreeQuickHighVerified liveBuild an installable privacy or accessibility NVDA add-on and submit it through the official add-on datastore workflow.Not a generic website listing; public source, documentation, compatible licensing, testing, and ongoing NVDA compatibility are required.Official live store and datastore submission guide checked 2026-08-05Open NVDA Add-on Store submit page (new tab)NVDA Add-on Store details
2386Obsidian Community Plugins75Link type unknownobsidian.mdMarketplaces and app storesFreeQuickHighVerified liveBuild a unique and useful Obsidian plugin, create valid releases and submit it to the community plugin directory.Requires a working plugin, release artifacts, documentation and compliance with Obsidian developer policies.Official Obsidian submission docs checked 2026-07-30Open Obsidian Community Plugins submit page (new tab)Obsidian Community Plugins details
2486Open VSX Registry65Link type unknownopen-vsx.orgMarketplaces and app storesFreeQuickHighLive, conditionalPublish a useful your tool editor extension whose marketplace metadata links to its homepage and documentation.Requires a genuine VSIX extension, namespace ownership and an access token; do not republish third-party work without rights.https://open-vsx.org/Open Open VSX Registry submit page (new tab)Open VSX Registry details
2586OpenTelemetry Registry75Link type unknownopentelemetry.ioMarketplaces and app storesFreeQuickHighVerified liveAdd native OpenTelemetry support or build a useful your tool instrumentation or utility, then submit its registry metadata and documentation links.Must fit an allowed registry type, have real implementation and enablement docs, use accurate licence and marketing metadata, and stay maintained.2026-08-05 — https://opentelemetry.io/ecosystem/registry/adding/Open OpenTelemetry Registry submit page (new tab)OpenTelemetry Registry details
2686Package Control60Link type unknownpackagecontrol.ioMarketplaces and app storesFreeQuickHighVerified liveBuild a useful Sublime Text integration for an your tool developer workflow, document it publicly and submit the package for review.Requires a public repository, valid metadata, releases and successful automated tests; thin promotional plugins will not qualify.2026-08-03Open Package Control submit page (new tab)Package Control details
2786Pipedream Registry70Link type unknownpipedream.comMarketplaces and app storesFreeQuickHighLive, conditionalBuild your tool triggers/actions, submit them to the public registry by GitHub PR, and address review feedback.Components must follow registry patterns; approved PRs become available in Pipedream Marketplace and workflows.https://pipedream.com/docs/components/contributingOpen Pipedream Registry submit page (new tab)Pipedream Registry details
2886Pipedrive Marketplace85Link type unknownpipedrive.comMarketplaces and app storesFreeQuickHighVerified liveBuild a Pipedrive OAuth integration for safe note export, duplicate cleanup, or PII auditing and submit a unique your tool listing.OAuth and testing are mandatory; accept the partner agreement and provide working legal, support, and production URLs.Official Pipedrive app development and marketplace guidance checked 2026-08-07Open Pipedrive Marketplace submit page (new tab)Pipedrive Marketplace details
2986RingCentral App Gallery85Link type unknownringcentral.comMarketplaces and app storesFreeQuickHighVerified liveBuild a public RingCentral integration around call-note privacy or safe file sharing and complete the profile with your tool documentation, privacy, and support links.A working public app is mandatory; screenshots must show the integration, and the profile needs installation, support, privacy, and legal details.Official RingCentral App Gallery promotion documentation checked 2026-08-07Open RingCentral App Gallery submit page (new tab)RingCentral App Gallery details
3086Traefik Plugin Catalog60Link type unknownplugins.traefik.ioMarketplaces and app storesFreeQuickHighVerified liveBuild a production-quality Traefik middleware plugin for an your tool privacy or security use case and publish it to the public catalog.Plugin must be public, reusable, tested, documented, safely scoped, and compliant with Traefik plugin manifest and registry requirements.2026-08-05 — https://doc.traefik.io/traefik-hub/api-gateway/guides/plugin-development-guideOpen Traefik Plugin Catalog submit page (new tab)Traefik Plugin Catalog details
3186TYPO3 Extension Repository75Link type unknowntypo3.orgMarketplaces and app storesFreeQuickHighVerified liveBuild a TYPO3 backend extension for selected content or media PII, metadata, and accessibility checks.Register a unique extension key and provide public source, documentation, security policy, semantic versions, and maintained releases.Official TYPO3 Extension Repository publishing documentation checked 2026-08-07Open TYPO3 Extension Repository submit page (new tab)TYPO3 Extension Repository details
3286Umbraco Marketplace75Link type unknownumbraco.comMarketplaces and app storesFreeQuickHighVerified liveCreate an your tool Umbraco integration package and point its NuGet project URL plus documentation to your tool.The NuGet package needs the marketplace tag, supported Umbraco version metadata, documentation, and optional marketplace manifest.Official Umbraco Marketplace package listing documentation checked 2026-08-07Open Umbraco Marketplace submit page (new tab)Umbraco Marketplace details
3386Upbound Marketplace45Link type unknownmarketplace.upbound.ioMarketplaces and app storesFreeQuickHighVerified liveBuild and publish a real Crossplane provider, function, configuration or add-on that integrates an your tool capability and exposes accurate project documentation.Use Upbound's package tooling and a public listing; package must be installable, maintained and useful to control-plane users. Confirm public visibility because new pushed packages may initially be private.2026-08-05Open Upbound Marketplace submit page (new tab)Upbound Marketplace details
3486Webex App Hub90Link type unknownwebex.comMarketplaces and app storesFreeQuickHighVerified liveBuild a production Webex integration or bot for deliberate sharing of your tool checklists or sanitized files, then submit its branded App Hub profile.Must be production-ready, use minimum scopes, avoid Cisco trademark misuse, and provide complete support and marketing material.Official Webex App Hub submission documentation checked 2026-08-07Open Webex App Hub submit page (new tab)Webex App Hub details
3586WordPress.org Plugins95Nofollowwordpress.orgMarketplaces and app storesFreeQuickHighNot submittedSubmit your tool widgets plugin after /embed is live.Credit link must be opt-in/default hidden; GPL-compatible plugin.2026-07-30Open WordPress.org Plugins submit page (new tab)WordPress.org Plugins details
3684Adobe Express Add-ons Marketplace95Nofollowadobe.comMarketplaces and app storesFreeModerateHighLive, conditionalBuild an your tool redaction, accessibility, image, or privacy add-on and submit its public listing.Requires an Adobe Express add-on, complete metadata/legal/support information, quality review, and compliant AI behavior.https://developer.adobe.com/express/add-ons/docs/guides/build/distribute/public-distOpen Adobe Express Add-ons Marketplace submit page (new tab)Adobe Express Add-ons Marketplace details
3784Airbyte Connector Marketplace70Nofollowairbyte.comMarketplaces and app storesFreeModerateHighLive, conditionalCreate a real source connector that lets consenting users export appropriate your tool data, provide tests and documentation, and contribute it to Airbyte's public connector catalog.Only build this when AltFTool has a stable documented API and a legitimate data-movement use case. Follow Airbyte connector specifications, CI, acceptance tests, review rules, and security disclosure guidance; do not submit a thin promotional connector.2026-08-03Open Airbyte Connector Marketplace submit page (new tab)Airbyte Connector Marketplace details
3884APILayer Marketplace60Link type unknownapilayer.comMarketplaces and app storesFreeModerateHighLive, conditionalPublish a stable, documented your tool API and apply as a provider with examples, uptime, support, and honest pricing.A deployed API, test environment, documentation, performance, and review are required; duplicate or weak APIs may be rejected.2026-08-05Open APILayer Marketplace submit page (new tab)APILayer Marketplace details
3984Asana App Directory90Nofollowasana.comMarketplaces and app storesFreeModerateHighVerified liveBuild an OAuth Asana component that launches an your tool audit or attaches a generated report, then submit complete company and support details.The app must be shared to any workspace, use OAuth where required, include complete listing details, and pass Asana review.Official Asana app sharing documentation checked 2026-08-07Open Asana App Directory submit page (new tab)Asana App Directory details
4084Auth0 Marketplace85Nofollowauth0.comMarketplaces and app storesFreeModerateHighNot submittedCreate a tested Auth0 Action that invokes a relevant your tool privacy or security workflow and submit through the Marketplace Partner Portal.Requires functional testing, documentation, unit tests, and Auth0 security/compliance review; approval and any backlink attributes are not guaranteed.2026-08-03Open Auth0 Marketplace submit page (new tab)Auth0 Marketplace details
4184Blender Extensions85Nofollowblender.orgMarketplaces and app storesFreeModerateHighVerified liveBuild a practical Blender add-on for media privacy, metadata or workflow automation and upload its tested extension package with documentation.Requires a Blender ID, valid manifest, tested ZIP and moderation approval; extension licensing and online-access declarations must be accurate.2026-08-03Open Blender Extensions submit page (new tab)Blender Extensions details
4284Canva Apps Marketplace95Nofollowcanva.comMarketplaces and app storesFreeModerateHighVerified liveBuild a Canva app that sends chosen design assets to an your tool accessibility, metadata, or privacy check and returns useful results inside Canva.The app must be unique, production-hosted, identity-verified, compliant with Canva rules, and pass functionality and quality review.Official Canva app review documentation checked 2026-08-07Open Canva Apps Marketplace submit page (new tab)Canva Apps Marketplace details
4384Checkmk Exchange55Link type unknownexchange.checkmk.comMarketplaces and app storesFreeModerateHighVerified livePackage a useful your tool service/security monitor as an MKP, create an account, and upload its description, icon and first version.MKP must be free to use, lawfully distributable, semantic-versioned, functional and safe; Checkmk developers moderate and test before publication.2026-08-05 — https://exchange.checkmk.com/how-to-uploadOpen Checkmk Exchange submit page (new tab)Checkmk Exchange details
4484Confluent Marketplace85Nofollowconfluent.ioMarketplaces and app storesFreeModerateHighVerified liveBuild a Kafka Connect source or sink that sends only explicitly selected records to your tool privacy or redaction checks and returns structured results.Submit a valid component archive; community components need an accepted open-source or royalty-free licence, and Confluent review applies.Official Confluent Hub contribution documentation checked 2026-08-07Open Confluent Marketplace submit page (new tab)Confluent Marketplace details
4584Datadog Integrations85Nofollowdatadoghq.comMarketplaces and app storesFreeModerateHighLive, conditionalApply as a Datadog Technology Partner and build a production-grade integration that sends meaningful your tool telemetry, includes dashboards and documentation, and is useful to shared customers.A real integration and Technology Partner application are required. Follow Datadog's telemetry, OAuth/API, asset, sandbox testing, security, review, and maintenance requirements. Marketplace commercial offers are a separate program.2026-08-03Open Datadog Integrations submit page (new tab)Datadog Integrations details
4684Elastic Integrations85Nofollowelastic.coMarketplaces and app storesFreeModerateHighLive, conditionalBuild an Elastic package that ingests legitimate your tool logs, metrics, or traces and supplies mappings, pipelines, dashboards, documentation, sample data, and automated tests.Use elastic-package, follow the package specification and ECS conventions, test locally, document permissions and supported versions, use lawful brand assets, and submit a reviewed pull request. Every accepted integration is listed publicly, so low-value promotional packages are inappropriate.2026-08-03Open Elastic Integrations submit page (new tab)Elastic Integrations details
4784Falco Plugin Registry60Link type unknownfalco.orgMarketplaces and app storesFreeModerateHighVerified liveBuild a real Falco source or field-extraction plugin, publish a clear README and fields, add it to registry.yaml, sign commits, and submit the registry PR.Plugin name and event-source rules apply; code, fields, documentation, signed commits, and maintainer review are required.Official Falco plugin registration guide checked 2026-08-05Open Falco Plugin Registry submit page (new tab)Falco Plugin Registry details
4884Firefox Add-ons95Nofollowmozilla.orgMarketplaces and app storesFreeModerateHighLive, conditionalBuild a useful privacy-preserving your tool extension, submit a signed build, and provide honest homepage, permissions and privacy disclosures.Must meet Mozilla Add-on Policies, minimize permissions and pass review; thin promotional wrappers are unsuitable.2026-08-05 official Firefox Add-ons developer pageOpen Firefox Add-ons submit page (new tab)Firefox Add-ons details
4984FlutterFlow Marketplace65Link type unknownflutterflow.ioMarketplaces and app storesFreeModerateHighVerified liveSubmit a high-quality reusable template, page, component or permitted custom-code asset related to an your tool workflow.Items undergo review that may take up to 30 days; custom code has current monetization restrictions.Official FlutterFlow marketplace docs checked 2026-07-30Open FlutterFlow Marketplace submit page (new tab)FlutterFlow Marketplace details
5084GitBook Integration Marketplace80Nofollowgitbook.comMarketplaces and app storesFreeModerateHighLive, conditionalBuild a real your tool documentation/privacy integration, publish it as public, test it, then submit for GitBook review.Requires a functional public GitBook integration, manifest metadata, external testing, screenshots and marketplace review.https://gitbook.com/docs/developers/integrations/submit-your-app-for-reviewOpen GitBook Integration Marketplace submit page (new tab)GitBook Integration Marketplace details
5184Grafana Plugin Catalog85Nofollowgrafana.comMarketplaces and app storesFreeModerateHighVerified liveBuild a panel, data-source or app plugin, validate and package it, then submit it with project links and test data.Grafana reviews each plugin case-by-case; commercial-offering plugins may require paid terms.Official Grafana plugin publishing docs checked 2026-07-30Open Grafana Plugin Catalog submit page (new tab)Grafana Plugin Catalog details
5284HACS Default Repositories45Link type unknownhacs.xyzMarketplaces and app storesFreeModerateHighNot submittedBuild a useful Home Assistant privacy or local-security integration, publish stable GitHub releases, pass HACS and Hassfest checks, then request inclusion.Only an owner or major contributor may submit; repository must be public, active, documented, releasable, and pass review—directory placement is not guaranteed.2026-08-03Open HACS Default Repositories submit page (new tab)HACS Default Repositories details
5384Haystack Integrations60Link type unknownhaystack.deepset.aiMarketplaces and app storesFreeModerateHighVerified livePackage an installable your tool Haystack component, provide examples and docs, then submit it to the Haystack integrations repository.Integration must be runnable, licensed, documented, maintained, and accepted through the official repository review process.2026-08-05Open Haystack Integrations submit page (new tab)Haystack Integrations details
5484Haystack Integrations60Link type unknowndeepset.aiMarketplaces and app storesFreeModerateHighVerified livePackage an installable Haystack component or tool for your tool read-only URL, security and metadata checks, then submit a draft integration page with runnable examples.Integration must be packaged, installable and runnable with source, issue link, component list, licence and clear examples; maintainers remain responsible for community integrations.2026-08-05Open Haystack Integrations submit page (new tab)Haystack Integrations details
5584Home Assistant Integrations85Link type unknownhome-assistant.ioMarketplaces and app storesFreeModerateHighLive, conditionalBuild and maintain a genuinely useful Home Assistant integration for a mature your tool service, including the required Python client library, tests, documentation, and a focused Core pull request.Home Assistant rejects integrations used mainly as marketing; the connected product must already be released, established, and useful to its users. New integrations must meet at least Bronze quality requirements and pass review. If AltFTool is not yet established enough, publish a custom integration through GitHub/HACS instead.2026-08-03Open Home Assistant Integrations submit page (new tab)Home Assistant Integrations details
5684Icinga Exchange50Link type unknownexchange.icinga.comMarketplaces and app storesFreeModerateHighVerified livePublish a real Icinga-compatible check, module or integration and synchronize its public Git repository, releases and README.Must be an actual maintained monitoring project; Git mode expects releases/tags and uses the README as its public description, or files must be manually maintained.2026-08-05 — https://exchange.icinga.com/aboutOpen Icinga Exchange submit page (new tab)Icinga Exchange details
5784IconScout80Nofollowiconscout.comMarketplaces and app storesFreeModerateHighVerified liveApply with a real designer portfolio and publish an original your tool-themed privacy, safety, accessibility, icon, illustration, 3D, or Lottie pack.Contributor approval is required; assets must be original and rights-cleared, and exclusivity can restrict cross-listing.Official IconScout contributor, fee, and legal guidance checked 2026-08-07Open IconScout submit page (new tab)IconScout details
5884IFTTT Services90Nofollowifttt.comMarketplaces and app storesFreeModerateHighLive, conditionalJoin the partner platform and create a secure your tool service with genuinely useful triggers, queries, and actions, pass endpoint tests and review, then publish helpful Applets for real user workflows.AltFTool needs a stable API, authentication, privacy-safe endpoints, reliable production hosting, support, and ongoing maintenance. Follow IFTTT service-design, endpoint, brand, review, and launch rules; publication is for working integrations, not a brand-only profile.2026-08-03Open IFTTT Services submit page (new tab)IFTTT Services details
5984Intercom App Store90Nofollowintercom.comMarketplaces and app storesFreeModerateHighVerified liveBuild an Intercom app for intentional conversation privacy scanning or sanitized export generation and include a clear your tool install or learn-more URL.Listed apps require OAuth, a complete start guide and listing, accurate installation links, partner information, and Intercom review.Official Intercom App Store listing documentation checked 2026-08-07Open Intercom App Store submit page (new tab)Intercom App Store details
6084Joomla Extensions Directory85Sometimes dofollowextensions.joomla.orgMarketplaces and app storesFreeModerateHighVerified liveBuild a genuine Joomla extension, create a developer profile and submit a complete listing with the official project website.Author-only submissions; GPL-compatible licensing, update server, installability, working links and review are required.Official JED submission docs checked 2026-07-30Open Joomla Extensions Directory submit page (new tab)Joomla Extensions Directory details
6184Jotform Widget Marketplace90Nofollowjotform.comMarketplaces and app storesFreeModerateHighVerified liveBuild and host a useful Jotform widget, register it with full documentation and send it for approval.Widget must be functional, secure, mobile-friendly and compliant with Jotform review and data rules.Official Jotform widget portal checked 2026-07-30Open Jotform Widget Marketplace submit page (new tab)Jotform Widget Marketplace details
6284Kestra Plugins55Link type unknownkestra.ioMarketplaces and app storesFreeModerateHighVerified liveImplement Java tasks or triggers for submitting your tool audits and fetching structured results, complete with typed properties, examples, tests and generated documentation.Follow current Java/Gradle conventions, internal HTTP client guidance, icons/metadata and unit/flow tests; annotations generate UI and website documentation.2026-08-05Open Kestra Plugins submit page (new tab)Kestra Plugins details
6384LangChain Integrations75Link type unknownlangchain.comMarketplaces and app storesFreeModerateHighVerified liveBuild a standalone your tool integration package with tests and submit the required LangChain documentation PR.Must fit an accepted integration type, pass standard tests, be published as a package, and complete code plus docs review.2026-08-05Open LangChain Integrations submit page (new tab)LangChain Integrations details
6484Nagios Exchange60Link type unknownexchange.nagios.orgMarketplaces and app storesFreeModerateHighVerified liveCreate a working Nagios check or addon for an your tool API/privacy-health signal, register, and submit the project with source and website links.Attach real plugin files and accurate compatibility/license details; every submission enters review before appearing publicly.2026-08-05 — https://exchange.nagios.org/about/Open Nagios Exchange submit page (new tab)Nagios Exchange details
6584Netlify Extensions Directory90Link type unknownnetlify.comMarketplaces and app storesFreeModerateHighVerified liveBuild and test a Netlify extension, publish it publicly, then submit it for review and directory listing.Public listed extensions are reviewed; provide accurate in-app documentation, support and secure implementation.Official Netlify SDK publishing docs checked 2026-07-30Open Netlify Extensions Directory submit page (new tab)Netlify Extensions Directory details
6684Nextcloud App Store80Link type unknownnextcloud.comMarketplaces and app storesFreeModerateHighNot submittedBuild a signed Nextcloud app for local document sanitization or privacy checks, publish releases, and maintain App Store compatibility.Must follow App Store, signing, security, privacy, and license rules; approval and outbound-link presentation remain under store moderation.2026-08-03Open Nextcloud App Store submit page (new tab)Nextcloud App Store details
6784QGIS Official Plugin Repository80Link type unknownqgis.orgMarketplaces and app storesFreeModerateHighVerified liveBuild a QGIS plugin that checks selected layers or exports for sensitive coordinates and metadata, then creates a safer copy.An OSGeo account, valid package and metadata, unique name, usable documentation, and staff approval are required.Official QGIS plugin release documentation checked 2026-08-07Open QGIS Official Plugin Repository submit page (new tab)QGIS Official Plugin Repository details
6884Quarto Extensions65Link type unknownquarto.orgMarketplaces and app storesFreeModerateHighVerified liveCreate a public Quarto extension for privacy, accessibility, or document checks with documentation, examples, and a license, then propose it for listing.Must be a working extension; inclusion is manually curated and promotional links alone are insufficient.Official Quarto extension and listing documentation checked 2026-08-05Open Quarto Extensions submit page (new tab)Quarto Extensions details
6984Railway Templates70Link type unknownrailway.comMarketplaces and app storesFreeModerateHighLive, conditionalPublish a maintained your tool open-source service template with safe variables, health checks, documentation and a demo.Must be a reusable deployable template; never include secrets and provide active maintenance.2026-08-04Open Railway Templates submit page (new tab)Railway Templates details
7084Redmine Plugin Directory75Link type unknownredmine.orgMarketplaces and app storesFreeModerateHighNot submittedBuild a maintained Redmine plugin that creates privacy or security audit tasks, document supported versions, then register it under an authenticated developer account.Only register a functioning plugin you maintain, with accurate compatibility and support details; moderation and link treatment are not guaranteed.2026-08-03Open Redmine Plugin Directory submit page (new tab)Redmine Plugin Directory details
7184Runtipi App Store35Link type unknownruntipi.ioMarketplaces and app storesFreeModerateHighVerified liveCreate and locally test an your tool Runtipi app with config, Compose metadata, safe secrets, screenshots, documentation, backups, and update behavior, then submit it.Must follow current app schema, support stated architectures, avoid latest image tags, pass validation, and remain maintained.Official Runtipi app creation and default-store documentation checked 2026-08-05Open Runtipi App Store submit page (new tab)Runtipi App Store details
7284Sanity Exchange75Link type unknownsanity.ioMarketplaces and app storesFreeModerateHighVerified liveBuild an your tool Sanity Studio plugin, publish it to npm, and submit it to Sanity Exchange with documentation and support links.Must be a reusable external-use Studio plugin with correct package metadata and documentation and follow the current Exchange flow.Official Sanity Studio plugin documentation checked 2026-08-07Open Sanity Exchange submit page (new tab)Sanity Exchange details
7384Snap Store85Link type unknownsnapcraft.ioMarketplaces and app storesFreeModerateHighVerified liveShip an installable your tool Linux app or CLI as a snap with a complete store listing and website link.Reserve the name, pass automated review and keep confinement, permissions and releases accurate.Official Snapcraft docs checked 2026-07-30Open Snap Store submit page (new tab)Snap Store details
7484Splunkbase90Link type unknownsplunk.comMarketplaces and app storesFreeModerateHighLive, conditionalBuild a useful Splunk app or add-on for legitimate your tool security, audit, or operational data; package it with clear documentation, icons, screenshots, release metadata, and support details.The package must pass structural, antivirus, security, and AppInspect checks plus admin review. Choose hosted versus external directory listing carefully because the hosting mode cannot be changed after publication; keep the app maintained and accurately supported.2026-08-03Open Splunkbase submit page (new tab)Splunkbase details
7584SpotSaaS30Link type unknownspotsaas.comMarketplaces and app storesFreeModerateHighVerified liveSubmit an accurate your tool profile with its strongest software category, live URL, features, pricing and logo.Manual review can take up to two weeks; incomplete or misleading submissions are rejected, so describe only live functionality.2026-08-03 • https://www.spotsaas.com/get-listedOpen SpotSaaS submit page (new tab)SpotSaaS details
7684SSH Open Marketplace40Link type unknownmarketplace.sshopencloud.euMarketplaces and app storesFreeModerateHighVerified liveCreate a factual your tool tool, workflow, or tutorial entry that genuinely serves social-science or humanities researchers.Requires concrete SSH research value, authorship, licence, useful supporting material, and marketplace moderation.2026-08-05 — https://marketplace.sshopencloud.eu/Open SSH Open Marketplace submit page (new tab)SSH Open Marketplace details
7784Statamic Marketplace60Link type unknownstatamic.devMarketplaces and app storesFreeModerateHighVerified liveBuild a useful Statamic/Laravel addon around an your tool workflow, publish it on Packagist and submit the product to the official marketplace.Requires a real Composer addon, seller/product setup, accurate docs and ongoing PHP/Laravel compatibility; paid-addon economics differ and must not be pursued solely for a link.2026-08-05Open Statamic Marketplace submit page (new tab)Statamic Marketplace details
7884Store.app—Link type unknownstore.appMarketplaces and app storesFreeModerateHighNot submittedCreate a developer account, request access, verify ownership, and publish a complete app profile with screenshots and description.Requires a functional web app and ownership verification; Store.app reviews developer access and submitted information.2026-08-03Open Store.app submit page (new tab)Store.app details
7984Storybook Integration Catalog75Link type unknownstorybook.js.orgMarketplaces and app storesFreeModerateHighVerified liveBuild a Storybook panel or preset that reports metadata, accessibility, broken-link or deployed-story audit findings through your tool, then publish it as an npm addon.Requires a real distributable addon, README, preset entry and storybook-addon as the first keyword; support current Storybook and never transmit private story content without opt-in.2026-08-05Open Storybook Integration Catalog submit page (new tab)Storybook Integration Catalog details
8084Strapi Community Marketplace80Link type unknownstrapi.ioMarketplaces and app storesFreeModerateHighVerified liveBuild a useful your tool Strapi plugin and submit its package, repository, documentation, and your tool support URL.Must be functional, MIT-licensed, publicly packaged and documented, and pass functional and security review; no offsite paywall.Official Strapi community plugin submission page checked 2026-08-07Open Strapi Community Marketplace submit page (new tab)Strapi Community Marketplace details
8184Thunderbird Add-ons75Nofollowaddons.thunderbird.netMarketplaces and app storesFreeModerateHighVerified liveBuild a legitimate Thunderbird MailExtension, complete its add-on page and submit it through the Developer Hub.Must comply with Thunderbird technical, security, privacy, licensing and review policies.Official Thunderbird add-on developer pages checked 2026-07-30Open Thunderbird Add-ons submit page (new tab)Thunderbird Add-ons details
8284ToolJet Marketplace55Link type unknowntooljet.aiMarketplaces and app storesFreeModerateHighVerified liveCreate a functional your tool ToolJet plugin with clear documentation and tests, then submit it to the marketplace through the official contribution flow.Must be a real maintained plugin, meet repository standards, pass review, and avoid a thin wrapper whose only purpose is promotion.Official ToolJet Marketplace plugin documentation checked 2026-08-07Open ToolJet Marketplace submit page (new tab)ToolJet Marketplace details
8384Umbrel App Store45Link type unknownapps.umbrel.comMarketplaces and app storesFreeModerateHighVerified livePackage a self-hosted your tool privacy utility for umbrelOS, add required metadata and assets, test it on supported hardware, and submit the official app PR.Must be a real containerized app; Docker images should be pinned, install flow tested, screenshots supplied, and review requirements satisfied.Official Umbrel app repository submission guide checked 2026-08-05Open Umbrel App Store submit page (new tab)Umbrel App Store details
8484Unity Asset Store90Link type unknownunity.comMarketplaces and app storesFreeModerateHighVerified liveBuild a polished Unity editor utility or SDK for a relevant your tool service and submit it with demos, documentation and support details.Publisher verification, technical validation, legal rights and marketplace review apply; do not repackage generic or unlicensed assets.2026-08-03Open Unity Asset Store submit page (new tab)Unity Asset Store details
8584Vercel Integrations Marketplace90Link type unknownvercel.comMarketplaces and app storesFreeModerateHighLive, conditionalBuild an your tool Vercel integration, distribute its page, gain adoption, then apply for Marketplace visibility.Community integrations can use direct pages; Marketplace listing generally requires 500 active installs and review.https://vercel.com/docs/integrations/create-integrationOpen Vercel Integrations Marketplace submit page (new tab)Vercel Integrations Marketplace details
8684Xero App Store85Nofollowdeveloper.xero.comMarketplaces and app storesFreeModerateHighLive, conditionalBuild an your tool accounting/privacy integration, validate it with customers, certify and publish it in the Xero App Store.Requires a real Xero integration and at least three customers for certification; technical and partner review apply.https://developer.xero.com/static/otherfiles/Grow-with-the-Xero-App-Store.pdfOpen Xero App Store submit page (new tab)Xero App Store details
8784Zed Extensions65Link type unknownzed.devMarketplaces and app storesFreeModerateHighNot submittedCreate a sandbox-compatible Zed extension for local secret, Unicode, or privacy checks, test it, publish its repository, and submit the registry pull request.Extension ID must be unique, licensing acceptable, functionality non-duplicative, and repository public; review controls inclusion and listing links.2026-08-03Open Zed Extensions submit page (new tab)Zed Extensions details
8884Zoom App Marketplace95Link type unknownzoom.usMarketplaces and app storesFreeModerateHighVerified liveBuild a minimal-scope Zoom app that sends selected meeting content to an explicit your tool privacy or redaction workflow and links its support, privacy, and documentation pages.Public apps undergo functional and security review; dedicated support, terms, privacy policy, documentation, and minimum permissions are required.Official Zoom app distribution documentation checked 2026-08-07Open Zoom App Marketplace submit page (new tab)Zoom App Marketplace details
8981Nocode.tech50Link type unknownnocode.techMarketplaces and app storesFreeInvolvedHighNeeds checkingSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/nocode-techOpen Nocode.tech submit page (new tab)Nocode.tech details
9068Apify Store70Nofollowapify.comMarketplaces and app storesFreeQuickMediumLive, conditionalBuild a working your tool automation Actor, publish it to the Store and include contextual project/documentation links.Actor must perform a real automation use case, meet Store quality/security rules and avoid unauthorized scraping or data use.https://docs.apify.com/actors/publishingOpen Apify Store submit page (new tab)Apify Store details
9168Budibase Community Plugins60Link type unknownbudibase.comMarketplaces and app storesFreeQuickMediumVerified liveBuild a useful your tool Budibase component or data-source plugin, publish the package or repository, and seek inclusion in community plugin resources.A functional plugin and public package are required; central curation is not guaranteed, so treat the package and documentation as the primary asset.Official Budibase custom plugin documentation checked 2026-08-07Open Budibase Community Plugins submit page (new tab)Budibase Community Plugins details
9268Contao Extensions45Link type unknownextensions.contao.orgMarketplaces and app storesFreeQuickMediumVerified liveBuild a functional Contao bundle for an your tool site-audit use case, publish tagged releases on Packagist with contao-bundle and manager-plugin metadata, and let the official index discover it.Requires a real Contao extension, public Composer package, at least one version tag and correct Contao Manager Plugin metadata; optional rich listing metadata is contributed separately.2026-08-05Open Contao Extensions submit page (new tab)Contao Extensions details
9368Fluentd Plugin Directory65Link type unknownfluentd.orgMarketplaces and app storesFreeQuickMediumVerified liveBuild and publish a real fluent-plugin-* RubyGem that redacts/routes privacy-sensitive logs and includes your tool as its project homepage.Must follow Fluentd plugin naming/API conventions and be a valid public RubyGem; the official directory refreshes periodically from RubyGems, so indexing is not immediate.2026-08-05 — https://docs.fluentd.org/plugin-developmentOpen Fluentd Plugin Directory submit page (new tab)Fluentd Plugin Directory details
9468Jellyfin Plugin Catalog70Link type unknownjellyfin.orgMarketplaces and app storesFreeQuickMediumVerified liveBuild a functional Jellyfin privacy, metadata-cleanup, or local-safety plugin with a maintained manifest repository, then propose its repository and documentation entry.Third-party listing is curated through documentation; official inclusion is not guaranteed and the plugin must remain compatible with Jellyfin's ABI.Official Jellyfin plugin catalog and repository guidance checked 2026-08-05Open Jellyfin Plugin Catalog submit page (new tab)Jellyfin Plugin Catalog details
9568Joomla Extensions Directory90Sometimes dofollowjoomla.orgMarketplaces and app storesFreeQuickMediumLive, conditionalBuild a functional your tool Joomla integration and submit a complete listing with an approved download route.Actual installable extension required; GPL, trademark, update-system, security and listing checks apply.2026-08-05 official JED submission guide and entry checklistOpen Joomla Extensions Directory submit page (new tab)Joomla Extensions Directory details
9668Mastra Templates and Integrations50Link type unknownmastra.aiMarketplaces and app storesFreeQuickMediumVerified liveCreate a working public your tool integration or reusable Mastra template with repository and documentation for review and cross-listing.A working integration and public repository are required; documentation listing, partner placement, and co-marketing are not guaranteed.2026-08-05Open Mastra Templates and Integrations submit page (new tab)Mastra Templates and Integrations details
9768napari Hub40Link type unknownnapari-hub.orgMarketplaces and app storesFreeQuickMediumVerified liveCreate a useful npe2 napari plugin for image privacy, metadata inspection or scientific redaction, publish it correctly on PyPI and let the official hub index its project metadata.Must be a working napari plugin with correct manifest, classifiers, tests and PyPI metadata; directory pages expose project details but are not an endorsement.2026-08-05Open napari Hub submit page (new tab)napari Hub details
9868RabbitMQ Community Plugins80Link type unknownrabbitmq.comMarketplaces and app storesFreeQuickMediumVerified liveBuild a stable open-source RabbitMQ plugin for a legitimate your tool security/privacy workflow and ask the RabbitMQ team to list it.Must be a real Erlang/OTP plugin, safely supervised, tested against supported RabbitMQ releases, distributed as an .ez artifact and maintained by its author.2026-08-05 — https://www.rabbitmq.com/plugin-developmentOpen RabbitMQ Community Plugins submit page (new tab)RabbitMQ Community Plugins details
9968Raycast Store70Link type unknownraycast.comMarketplaces and app storesFreeQuickMediumLive, conditionalBuild your tool actions as a Raycast extension and publish through the official GitHub PR workflow.Extension must follow Store guidelines and generally be open-source under the required license.https://developers.raycast.com/basics/publish-an-extensionOpen Raycast Store submit page (new tab)Raycast Store details
10068Roadie Backstage Plugins Directory50Link type unknownroadie.ioMarketplaces and app storesFreeQuickMediumVerified livePublish a substantial open-source Backstage plugin that integrates your tool privacy/security checks, then request inclusion if the directory does not discover it.Plugin must be installable, documented and maintained; public directory inclusion is curated/indexed and not guaranteed merely by publishing an npm package.2026-08-05 — https://roadie.io/docs/details/requesting-plugins/Open Roadie Backstage Plugins Directory submit page (new tab)Roadie Backstage Plugins Directory details

How to build backlinks with this list

Four steps that work for a new site, a SaaS or a side project. No paid link packages, nothing that risks a penalty.

  1. Get the basics right first

    Before submitting anywhere, have a one-line description, a 150-word description, a square logo and two or three screenshots ready. Every form asks for some mix of these.

  2. Claim profiles and free listings

    Start with the free, quick rows: profile creation sites and free directories. They are one form each and build the entity signals search engines use to understand who you are.

  3. Go after a few strong links

    Then pick a handful of high DA and dofollow sites that fit your niche, and write proper guest posts or launch posts for them. Ten relevant links beat a hundred random ones.

  4. Track and keep it clean

    Note where you submitted and when. Recheck after a month, update stale descriptions, and never pay for bulk link packages: they put the whole site at risk.

Behind the list

A link opportunity is not a link.

Every row here starts as a line in a sheet, gets normalised into one of 16 groups, scored for cost, effort and impact, and written up with the steps to actually submit. The floor below represents that pipeline.

Open the sheet view

An illustration of the AltF Backlinks floor: opportunities sourced at the back, vetted for cost and effort by the engineering pod, written up for outreach by the design pod, then tracked to placement along a line.

Backlink sites by category

Common questions

Do backlinks still matter for ranking in 2026?
Links remain one signal among many, and low-quality bulk links do more harm than good. What still works is being listed where your buyers actually look — directories with real traffic, registries your peers use, and launch platforms with engaged audiences. Every entry in this list is a place a human might plausibly find you, which is why they are worth submitting to regardless of link equity.
Which submissions should I do first?
Start with the quick wins filter: free, low effort, and not in the lowest priority band. 208 of the 1,964 entries qualify, and those are the ones where a single form submission gets you a live listing the same week. Launch platforms are worth saving until your product is genuinely ready, because you only get one good attempt at each.
How is the impact score calculated?
It starts from a hand-assigned priority band (do first, high, medium, later), then adjusts for cost and effort. A free, quick opportunity scores above a paid, involved one in the same band, because it is the one you can realistically finish today. The score is a queueing aid, not a measure of domain authority.
Are these links free?
1,628 of the 1,964 entries are free to submit to or offer a free tier that includes a listing. Cost is shown on every row, and the "nothing to pay" filter narrows the list to exactly those.
Which backlink sites are dofollow?
44 entries are known to give a followed link on a normal listing, and more give one only in some placements. The link type is shown on every row and can be filtered. Sites change their link policy without notice, so treat the label as a starting point and check the live page after you are listed. A nofollow link from a busy site still sends visitors and helps search engines discover you.
What does the DA number mean?
It is our estimate of the site's domain authority, a third-party style 0-100 score of how strong a domain's link profile is, rounded to the nearest 5. 1,580 of the 1,964 sites have one. It is useful for comparing sites, not a Google metric, so relevance to your niche still matters more.
How do I get backlinks for a new website?
1. Get the basics right first: Before submitting anywhere, have a one-line description, a 150-word description, a square logo and two or three screenshots ready. Every form asks for some mix of these. 2. Claim profiles and free listings: Start with the free, quick rows: profile creation sites and free directories. They are one form each and build the entity signals search engines use to understand who you are. 3. Go after a few strong links: Then pick a handful of high DA and dofollow sites that fit your niche, and write proper guest posts or launch posts for them. Ten relevant links beat a hundred random ones. 4. Track and keep it clean: Note where you submitted and when. Recheck after a month, update stale descriptions, and never pay for bulk link packages: they put the whole site at risk.
Will submitting everywhere hurt my site?
Submitting to spam directories can. That is why this list is curated rather than scraped, and why entries carry a status showing whether they have been verified as live. Skip anything that promises hundreds of links for a fee, and prefer places where a real person reviews submissions.