Skip to main content
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 276 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
184Aback Launch—Link type unknownabacklaunch.comLaunch platformsFreeModerateHighNot submittedLaunch your tool with a unique tagline, screenshots and founder profile linking to your tool.Use original launch copy; no vote manipulation; review or queue may apply. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/aback-launchOpen Aback Launch submit page (new tab)Aback Launch details
284Adobe 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
384Agentic.ai—Link type unknownagentic.aiAI tool directoriesFreeModerateHighLive, conditionalSubmit only an your tool agent that independently decides, acts, and observes.Generic AI generators or static utilities are not considered agentic.https://agentic.ai/submitOpen Agentic.ai submit page (new tab)Agentic.ai details
484AI Kendra—Link type unknownaikendra.comAI tool directoriesFreeModerateHighNot submittedSubmit a working your tool AI utility with a clear under-80-character tagline, correct category, pricing model, logo and honest description.Manual review normally targets 24–48 hours; the product must be public, functional and genuinely useful to creators; sponsored slots are optional.2026-08-03Open AI Kendra submit page (new tab)AI Kendra details
584AI Tool Seekers—Link type unknownaitoolseekers.comAI tool directoriesFreeModerateHighNot submittedUse the free official flow to submit one genuine your tool AI tool, then claim and maintain it using a matching domain email.AI tools and agents only; manual review may take up to seven days; payment buys review speed and temporary labels, never score or ranking.2026-08-03Open AI Tool Seekers submit page (new tab)AI Tool Seekers details
684AI ToolNet30Link type unknownaitoolnet.comAI tool directoriesFreeModerateHighLive, conditionalSubmit only your tool features that genuinely use AI, after checking for an existing listing and preparing accurate pricing and use cases.AI tools only, with manual approval and no duplicates; avoid reciprocal-link tactics used solely to influence search rankings.2026-08-03Open AI ToolNet submit page (new tab)AI ToolNet details
784Airbyte 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
884Alfred Gallery65Link type unknownalfredapp.comDesign galleriesFreeModerateHighNot submittedBuild a polished Alfred workflow that opens or securely sends selected content to a relevant your tool utility, then submit it through the official Gallery forum flow.Workflow must be useful and maintained, and forum/Gallery moderation decides acceptance; no guaranteed prominence or dofollow backlink.2026-08-03Open Alfred Gallery submit page (new tab)Alfred Gallery details
984Amazon Music for Podcasters95Nofollowpodcasters.amazon.comOther opportunitiesFreeModerateHighLive, conditionalSubmit and verify one genuine your tool podcast feed for distribution on Amazon Music and Audible.RSS must expose a valid owner email; rights, license, and platform rules apply, and review may take up to one week.2026-08-05Open Amazon Music for Podcasters submit page (new tab)Amazon Music for Podcasters details
1084APILayer 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
1184App Stack Builder—Link type unknownappstackbuilder.comLaunch platformsFreeModerateHighVerified liveSubmit your tool as a developer or productivity tool for editorial launch coverage.Must be live, useful, and relevant to SaaS or developer workflows.https://appstackbuilder.com/submit-toolOpen App Stack Builder submit page (new tab)App Stack Builder details
1284Arch User Repository80Nofollowaur.archlinux.orgDeveloper registriesFreeModerateHighVerified liveCreate and maintain a PKGBUILD for an installable your tool Linux release with the upstream URL and correct source checksums.No duplicates, placeholders or binary uploads; package must be useful, x86_64-compatible and maintained.Official ArchWiki submission guide checked 2026-07-30Open Arch User Repository submit page (new tab)Arch User Repository details
1384Asana 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
1484Auth0 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
1584awesome-ai-tools (mahseema)—Link type unknowngithub.com/mahseema/awesome-ai-toolsDeveloper registriesFreeModerateHighNeeds checkingSubmit a PR adding the AltFTool AI prompt tools to the relevant prompt/writing section.Large, popular list; keep description neutral, no marketing language.Added 2026-11-01Open awesome-ai-tools (mahseema) submit page (new tab)awesome-ai-tools (mahseema) details
1684awesome-free-tools—Link type unknowngithub.com/mathewlewallen/awesome-free-toolsDeveloper registriesFreeModerateHighNeeds checkingPropose AltFTool as an all-in-one free utilities site in the most relevant section via PR.Check activity of the repo before investing time; follow existing entry format.Added 2026-11-01Open awesome-free-tools submit page (new tab)awesome-free-tools details
1784awesome-n8n-templates—Link type unknowngithub.com/enescingoz/awesome-n8n-templatesDeveloper registriesFreeModerateHighNeeds checkingContribute one or two genuinely useful AltFTool n8n workflow templates (JSON) with a short description linking back.Repo wants actual workflow files, not just links; read CONTRIBUTING first.Added 2026-11-01Open awesome-n8n-templates submit page (new tab)awesome-n8n-templates details
1884Bear Blog60Sometimes dofollowbearblog.devPublishing platformsFreeModerateHighNot submittedBuild a small founder-written knowledge blog with genuinely useful local-first privacy and file-safety guides.The signup page explicitly bans backlink spam and domain squatting; free blogs require manual review before indexing or discovery.2026-08-03Open Bear Blog submit page (new tab)Bear Blog details
1984Bing for Business95Nofollowbing.comBusiness directoriesFreeModerateHighVerified liveClaim and verify your tool’s legitimate business entity or location and keep name, address, phone, and website consistent.Business verification and eligibility rules apply; do not create a fake address for an online-only SaaS.https://support.microsoft.com/en-us/bing/add-and-manage-your-business-listingOpen Bing for Business submit page (new tab)Bing for Business details
2084Bioconductor75Link type unknownbioconductor.orgReview platformsFreeModerateHighVerified liveIf your tool ships a legitimate genomics or bioinformatics utility, package it for R with complete vignettes and submit it for review.Only in-scope, scientifically useful and maintainable packages qualify; peer review and continuous checks apply.2026-08-03Open Bioconductor submit page (new tab)Bioconductor details
2184Bitrise Step Library70Link type unknownbitrise.ioOther opportunitiesFreeModerateHighVerified liveBuild a Bitrise Step that runs your tool secret, privacy, or accessibility checks on explicitly chosen build artifacts.Provide step.yml, implementation, README, declared inputs and outputs, dependencies, and tests; pass Step Library review.Official Bitrise custom Step development documentation checked 2026-08-07Open Bitrise Step Library submit page (new tab)Bitrise Step Library details
2284Blender 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
2384Business Tool Vault—Link type unknownbusinesstoolvault.comSoftware directoriesFreeModerateHighVerified liveSubmit your tool with a clear business use case, logo and optional demo video.Team reviews effectiveness, relevance and completeness before inclusion.2026-08-05Open Business Tool Vault submit page (new tab)Business Tool Vault details
2484Caddy Module Registry65Link type unknowncaddyserver.comDeveloper registriesFreeModerateHighVerified liveBuild a useful your tool privacy or security Caddy module, publish the Go package, then register it for module docs and custom builds.Requires a working Go module that implements the Caddy interface; register through a Caddy account and maintain accurate public package documentation.2026-08-05 — https://caddyserver.com/docs/extending-caddyOpen Caddy Module Registry submit page (new tab)Caddy Module Registry details
2584Canva 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
2684Castbox75Nofollowcastbox.fmOther opportunitiesFreeModerateHighLive, conditionalAdd or claim a real your tool podcast in Creator Studio and complete channel, site and episode metadata.Must own the show and verify access to its RSS email; publish original audio content.2026-08-04Open Castbox submit page (new tab)Castbox details
2784Checkmk 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
2884Chocolatey Community Repository75Nofollowcommunity.chocolatey.orgDeveloper registriesFreeModerateHighVerified livePackage a genuine your tool Windows desktop or CLI release and set project, documentation and package-source URLs.Automated checks and moderator review apply; prove redistribution rights and maintain install and uninstall behavior.Official Chocolatey docs checked 2026-07-30Open Chocolatey Community Repository submit page (new tab)Chocolatey Community Repository details
2984Chocolatey Community Repository75Nofollowchocolatey.orgDeveloper registriesFreeModerateHighLive, conditionalShip a real your tool CLI or desktop utility as a tested package with homepage, project and support metadata.Requires distributable software, legal rights, repeatable install/uninstall, tests, malware scan and moderation.2026-08-04Open Chocolatey Community Repository submit page (new tab)Chocolatey Community Repository details
3084CircleCI Orb Registry80Link type unknowncircleci.comDeveloper registriesFreeModerateHighVerified livePublish a tested public your tool orb for privacy, secret, or document-safety checks with a homepage URL and usage examples.Requires a CircleCI organization namespace, GitHub repository, MIT-licensed public orb, semantic releases, tests, and ongoing maintenance.2026-08-05 — https://circleci.com/docs/creating-orbsOpen CircleCI Orb Registry submit page (new tab)CircleCI Orb Registry details
3184Cloudron Community Apps60Link type unknowncloudron.ioCommunities and forumsFreeModerateHighVerified livePackage a secure self-hosted your app for Cloudron, publish its version catalog and documentation, then request inclusion in Community Apps.Must support Cloudron's read-only filesystem, backups, updates, health checks, manifest fields, and publicly hosted version catalog; community apps are not reviewed by Cloudron.Official Cloudron packaging and publishing documentation checked 2026-08-05Open Cloudron Community Apps submit page (new tab)Cloudron Community Apps details
3284CodeMeta Tools40Link type unknowncodemeta.github.ioSoftware directoriesFreeModerateHighVerified liveBuild a current CodeMeta validator, privacy linter, or integration and propose inclusion through the official website repository.Must genuinely consume or produce CodeMeta; inclusion path is via community site contribution, not a dedicated form.Official tools, governance, and website-repository pages checked 2026-08-05Open CodeMeta Tools submit page (new tab)CodeMeta Tools details
3384ConanCenter65Link type unknownconan.ioDeveloper registriesFreeModerateHighVerified livePublish a useful C/C++ SDK or client for an your tool API and contribute its tested recipe to ConanCenter.The package must be real, versioned and pass conan-center-index review; promotional placeholder packages are inappropriate.2026-08-03Open ConanCenter submit page (new tab)ConanCenter details
3484conda-forge65Link type unknownconda-forge.orgDeveloper registriesFreeModerateHighVerified liveSubmit a tested recipe for a real your tool package with upstream homepage, source archive, license and tests.PR review and CI are required; an accepted contributor becomes responsible for maintaining the feedstock.Official conda-forge docs checked 2026-07-30Open conda-forge submit page (new tab)conda-forge details
3584Confluent 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
3684Coroflot70Nofollowcoroflot.comDesign galleriesFreeModerateHighVerified liveCreate a real designer profile and publish an original your tool UX/accessibility case study with process artifacts, outcomes, and the official project link.Coroflot is for genuine creative work; the official FAQ permits personal-website/social links. Use a real identity, rights-cleared visuals, and a substantive case study rather than a logo-plus-link page. Portfolio links are user-controlled UGC, can be moderated or made private, and have no indexing or followed-link guarantee.2026-08-03Open Coroflot submit page (new tab)Coroflot details
3784CRAN90Nofollowcran.r-project.orgDeveloper registriesFreeModerateHighVerified liveSubmit a useful R package with URL and BugReports metadata pointing to its official project and documentation pages.CRAN performs rigorous automated and manual review; packages must meet policy across supported platforms.Official CRAN repository policy checked 2026-07-30Open CRAN submit page (new tab)CRAN details
3884CrawlRabbit—Link type unknowncrawlrabbit.comReview platformsFreeModerateHighVerified liveCreate a free owner account, submit your tool and manage the approved public listing.Site must be live with original content; misleading or thin submissions are rejected.2026-08-03Open CrawlRabbit submit page (new tab)CrawlRabbit details
3984CrowdSec Hub50Link type unknownapp.crowdsec.netOther opportunitiesFreeModerateHighVerified liveCreate a defensive parser, scenario, or collection for a real your tool-supported log source, document and test it, then submit it to CrowdSec Hub.Must use valid labels, tests, fixtures, documentation, and safe detection logic; CI and maintainer review apply.Official CrowdSec Hub contribution guide checked 2026-08-05Open CrowdSec Hub submit page (new tab)CrowdSec Hub details
4084Daggerverse60Link type unknowndagger.ioOther opportunitiesFreeModerateHighVerified liveCreate a TypeScript or Go module that runs your tool web audits in CI and returns machine-readable JSON/SARIF with useful pass/fail thresholds, then publish it to Daggerverse.Use valid semantic version tags, clear descriptions, tests and hand-written examples; Daggerverse indexes source rather than hosting it, so the module must provide real CI value.2026-08-05Open Daggerverse submit page (new tab)Daggerverse details
4184DagsHub55Nofollowdagshub.comDesign galleriesFreeModerateHighVerified livePublish a reproducible your tool privacy benchmark with code, synthetic data, model versions, and documentation.Public repositories expose their full contents; remove secrets, personal data, proprietary files, and unsafe samples.Official DagsHub project creation documentation checked 2026-08-07Open DagsHub submit page (new tab)DagsHub details
4284Dailyweb.Design—Link type unknowndailyweb.designReview platformsFreeModerateHighVerified liveSubmit your tool strongest polished page for free manual design review and possible gallery inclusion.Approval is selective; submit only production-ready original design and do not repeatedly resubmit or solicit links.Official Dailyweb.Design submission page checked 2026-08-07Open Dailyweb.Design submit page (new tab)Dailyweb.Design details
4384Datadog 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
4484Devfolio65Nofollowdevfolio.coDesign galleriesFreeModerateHighVerified liveCreate the real developer profile and add your tool as a genuine built project with problem, challenges, technologies, screenshots, demo, and accurate collaborator credits.Devfolio explicitly supports personal and side projects, but the submission must be work the profile/team actually built. Do not fabricate a hackathon, team, metrics, or project history; disclose roles and use original assets. Projects/links are UGC, subject to moderation, with no indexing or followed-link guarantee.2026-08-03Open Devfolio submit page (new tab)Devfolio details
4584DevHunt50Sometimes dofollowdevhunt.orgLaunch platformsFreeModerateHighNeeds checkingSubmit your tool developer utilities; GitHub-auth community.Best for dev tools; prepare GitHub/repo proof if requested.2026-07-30Open DevHunt submit page (new tab)DevHunt details
4684Discord App Directory95Nofollowdiscord.comSoftware directoriesFreeModerateHighLive, conditionalBuild and verify an your tool Discord app, then enable Discovery in the Developer Portal.App must meet verification and Discovery qualification criteria before appearing publicly.https://docs.discord.com/developers/discovery/enabling-discoveryOpen Discord App Directory submit page (new tab)Discord App Directory details
4784Docker Hub90Nofollowdocker.comDeveloper registriesFreeModerateHighLive, conditionalPublish a maintained your tool CLI or server image with source, documentation, descriptions and canonical homepage links.Ship a scanned, reproducible and maintained image; public presence is not Docker verification and fair-use limits apply.2026-08-05 official Docker Hub repository and usage documentationOpen Docker Hub submit page (new tab)Docker Hub details
4884Dockstore50Link type unknowndockstore.orgSoftware directoriesFreeModerateHighVerified livePublish a containerized your tool research workflow or tool using CWL, WDL, Nextflow, Galaxy, or a supported notebook descriptor.Requires a Dockstore account, valid descriptor and version, linked source repository or hosted files, tests, and explicit public publishing.2026-08-05 — https://docs.dockstore.org/en/develop/getting-started/dockstore-workflows.htmlOpen Dockstore submit page (new tab)Dockstore details
4984Drupal.org Projects90Nofollowdrupal.orgDeveloper registriesFreeModerateHighVerified liveCreate a functional Drupal integration or reusable module and publish a maintained project page with documentation and official links.Project must contain real Drupal-compatible code and follow security, licensing, naming and non-promotional rules.Official Drupal project docs checked 2026-07-30Open Drupal.org Projects submit page (new tab)Drupal.org Projects details
5084EarlyHunt—Link type unknownearlyhunt.comLaunch platformsFreeModerateHighNot submittedLaunch your tool with a unique tagline, screenshots and founder profile linking to your tool.Use original launch copy; no vote manipulation; review or queue may apply. Link treatment varies by tier/page.2026-07-30 • https://www.submission.directory/site/earlyhuntOpen EarlyHunt submit page (new tab)EarlyHunt details
5184Elastic 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
5284ethical.net45Link type unknownethical.netCommunities and forumsFreeModerateHighVerified liveSubmit your tool only with concrete evidence of privacy-first operation, local processing, transparent data practices, accessibility, and useful free resources.Disclose the relationship, provide evidence, avoid unsupported ethical claims or promotional link drops, and let the community evaluate it.Official Ethical.net directory suggestion thread checked 2026-08-07Open ethical.net submit page (new tab)ethical.net details
5384Falco 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
5484Firefox 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
5584Firsto—Link type unknownfirsto.coLaunch platformsFreeModerateHighNot submittedLaunch your tool with a unique tagline, screenshots and founder profile linking to your tool.Use original launch copy; no vote manipulation; review or queue may apply. Link treatment varies by tier/page.2026-07-30 • https://www.submission.directory/site/firstoOpen Firsto submit page (new tab)Firsto details
5684Flipboard90Nofollowflipboard.comPublishing platformsFreeModerateHighNot submittedCreate a public digital-privacy magazine, curate reputable third-party resources, and occasionally add strong your tool guides with commentary.Keep the magazine topical and balanced; Flipboard stresses authentic curation, and outbound links may be treated as UGC.2026-08-03Open Flipboard submit page (new tab)Flipboard details
5784FlutterFlow 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
5884FOSDEM75Link type unknownfosdem.orgDesign galleriesFreeModerateHighNot submittedOpen-source a meaningful component and prepare a community-focused talk, demo, or joint stand proposal for the next FOSDEM CFP rather than a company sales presentation.All content must relate to Free and Open Source Software; selection is competitive, recordings/slides are published under CC BY, and the code of conduct applies. FOSDEM 2026 is over and the 2027 CFP is not yet posted.2026-08-03Open FOSDEM submit page (new tab)FOSDEM details
5984FOSSHub70Link type unknownfosshub.comSoftware directoriesFreeModerateHighLive, conditionalApply with a signed, downloadable open-source or qualifying freeware build that needs reliable binary hosting, malware scanning, and a public project page.FOSSHub reviews applications and accepts only qualifying open-source or freeware projects under its terms; a web-only homepage with no downloadable artifact is not a fit.2026-08-03Open FOSSHub submit page (new tab)FOSSHub details
6084freeCodeCamp News90Sometimes dofollowfreecodecamp.orgPublishing platformsFreeModerateHighVerified liveCreate a comprehensive tutorial around a reusable privacy, file-processing, accessibility, or security technique, with your tool only as a natural example.Follow the current contributor and Hashnode workflow; content must teach, be original, and avoid promotional intent.https://contribute.freecodecamp.org/faq/Open freeCodeCamp News submit page (new tab)freeCodeCamp News details
6184GetLatka70Nofollowgetlatka.comSoftware directoriesFreeModerateHighVerified liveCreate an your tool company profile using an official your tool email.Work email must match the company domain; team reviews submissions.https://getlatka.com/addOpen GetLatka submit page (new tab)GetLatka details
6284GitBook 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
6384Go Packages90Link type unknownpkg.go.devDeveloper registriesFreeModerateHighVerified liveTag and publish a public Go module with module docs and repository metadata so pkg.go.dev indexes it.Use a valid module path and semantic-version tag; the module becomes discoverable after the proxy fetches it.Official Go module publishing docs checked 2026-07-30Open Go Packages submit page (new tab)Go Packages details
6484Google Open Source Insights60Link type unknowndeps.devDeveloper registriesFreeModerateHighLive, conditionalPublish a useful your tool package to a supported registry with accurate source and homepage metadata so Open Source Insights can index it.No promotional manual submission; only genuine public packages in supported ecosystems are indexed and the homepage link depends on package metadata.2026-08-05 official deps.dev About and documentationOpen Google Open Source Insights submit page (new tab)Google Open Source Insights details
6584Grafana 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
6684Hackaday.io85Nofollowhackaday.ioCommunities and forumsFreeModerateHighVerified liveDocument a real hardware, privacy or security build that uses your tool, including schematics, progress logs and a natural official-project link.Projects should document genuine work and follow community conduct; advertising-only pages and repetitive link posts are inappropriate.2026-08-03Open Hackaday.io submit page (new tab)Hackaday.io details
6784HACS 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
6884Haystack 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
6984Haystack 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
7084Hex70Link type unknownhex.pmDeveloper registriesFreeModerateHighVerified livePublish a maintained Elixir client or utility with package links, description, license and documentation.Requires a Hex account and valid mix.exs package metadata; publish only reusable working code.Official Hex publishing docs checked 2026-07-30Open Hex submit page (new tab)Hex details
7184Home 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
7284Homebrew Formulae75Link type unknownformulae.brew.shDeveloper registriesFreeModerateHighVerified liveSubmit an open-source CLI formula or a qualifying macOS app cask with the canonical your tool homepage.Must meet Homebrew acceptance, notability, build, audit and testing rules; promotional-only formulae are rejected.Official Homebrew contribution docs checked 2026-07-30Open Homebrew Formulae submit page (new tab)Homebrew Formulae details
7384Hot Softwares—Link type unknownhotsoftwares.comSoftware directoriesFreeModerateHighVerified liveCreate a vendor account and submit accurate your tool features, logo and pricing.Manual review; keep the listing factual and avoid manufactured reviews.2026-08-05Open Hot Softwares submit page (new tab)Hot Softwares details
7484Icinga 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
7584IconScout80Nofollowiconscout.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
7684IFTTT 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
7784Indie Makers Hub—Link type unknownindiemakershub.comOther opportunitiesFreeModerateHighVerified liveSubmit your tool through the official reviewed product form.Google authentication may be required; complete and relevant submissions only.2026-08-05Open Indie Makers Hub submit page (new tab)Indie Makers Hub details
7884Indie.Deals—Link type unknownindie.dealsLaunch platformsFreeModerateHighNot submittedLaunch your tool with a unique tagline, screenshots and founder profile linking to your tool.Use original launch copy; no vote manipulation; review or queue may apply. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/indie-dealsOpen Indie.Deals submit page (new tab)Indie.Deals details
7984Intercom 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
8084Internet.nl Hall of Fame60Link type unknowninternet.nlOther opportunitiesFreeModerateHighNot submittedRun the website and email tests, fix IPv6, DNSSEC, HTTPS, security headers, DMARC/DKIM/SPF, STARTTLS/DANE, and RPKI gaps, then retain a 100% score.The domain is listed only when it scores 100% in the relevant test; the badge may be used only for the matching domain and only while the score remains 100%.2026-08-03Open Internet.nl Hall of Fame submit page (new tab)Internet.nl Hall of Fame details
8184Joomla 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
8284Jotform 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
8384JS.ORG70Dofollowjs.orgOther opportunitiesFreeModerateHighVerified liveCreate a genuine JavaScript SDK or demo on GitHub Pages and request an appropriate js.org subdomain that links to its official your tool documentation.The project must be JavaScript-related and useful; spam, phishing and dubious content are prohibited, and a pull-request review is required.2026-08-03Open JS.ORG submit page (new tab)JS.ORG details
8484JSFiddle85Nofollowjsfiddle.netDesign galleriesFreeModerateHighVerified livePublish a small standalone your tool privacy or accessibility demo with explanatory comments and a stable share URL.Use original client-side demo code and never include secrets, personal data, trackers, or a promotion-only empty fiddle.Official JSFiddle getting-started documentation checked 2026-08-07Open JSFiddle submit page (new tab)JSFiddle details
8584Kaggle90Nofollowkaggle.comCommunities and forumsFreeModerateHighLive, conditionalPublish a clean your tool benchmark or open dataset plus a reproducible notebook, with proper licensing and the canonical project URL in the data card.Only publish useful non-sensitive data/code; remove secrets and PII, document methodology, choose a valid license, and avoid promotional-only datasets.https://www.kaggle.com/datasetsOpen Kaggle submit page (new tab)Kaggle details
8684Kestra 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
8784LangChain 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
8884Langflow Component Bundles50Link type unknownlangflow.orgOther opportunitiesFreeModerateHighVerified liveContribute an your tool provider bundle with useful privacy or security components and provider documentation links.Requires production-quality backend components, frontend assets, tests and a reviewed Langflow pull request; generic promotion is rejected.2026-08-05Open Langflow Component Bundles submit page (new tab)Langflow Component Bundles details
8984Launch Llama—Link type unknownlaunchllama.coLaunch platformsFreeModerateHighVerified liveCreate an account and submit the live your tool product with polished copy, visuals and an accurate category.Every submission is reviewed and newsletter selection is not guaranteed; official pages give different review estimates, so allow at least seven days and never manipulate votes.2026-08-03 • https://launchllama.co/showcase-your-product-freeOpen Launch Llama submit page (new tab)Launch Llama details
9084Layers40Nofollowlayers.toDesign galleriesFreeModerateHighVerified liveJoin as the real your tool designer and share polished, original interface explorations or accessibility improvements with useful design context and a profile website link.Layers is for designers showcasing their own work; its terms prohibit spam and misleading content and permit moderation. Use a real identity, credit assets, and disclose the AltFTool relationship. Profiles/posts and external links are UGC, so indexing and followed-link status are not guaranteed.2026-08-03Open Layers submit page (new tab)Layers details
9184Leaflet—Link type unknownleaflet.pubPublishing platformsFreeModerateHighVerified liveCreate an your tool publication and write original tutorials or research with contextual links to relevant tools.Unlimited free posts are supported; publish reader-first content, not thin promotional pages.2026-08-04Open Leaflet submit page (new tab)Leaflet details
9284LinuxLinks60Dofollowlinuxlinks.comOther opportunitiesFreeModerateHighLive, conditionalSubmit a maintained your tool desktop or CLI utility only after it runs natively on a modern Linux distribution and has a public OSI-approved license and repository.The program must be open source, current, searchable as not already covered, buildable on modern Linux, and accompanied by its repository, license, website, and factual feature summary.2026-08-03Open LinuxLinks submit page (new tab)LinuxLinks details
9384ListChallenges55Nofollowlistchallenges.comProfiles and entitiesFreeModerateHighVerified liveCreate a genuine founder profile and share a useful build story or tutorial with a relevant link.Follow community self-promotion rules; contribute before linking; no repetitive posts. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/listchallengesOpen ListChallenges submit page (new tab)ListChallenges details
9484Lobsters65Nofollowlobste.rsProfiles and entitiesFreeModerateHighNeeds checkingCreate a genuine founder profile and share a useful build story or tutorial with a relevant link.Follow community self-promotion rules; contribute before linking; no repetitive posts. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/lobstersOpen Lobsters submit page (new tab)Lobsters details
9584Local-First Software (LoFi)—Link type unknownlofi.soSoftware directoriesFreeModerateHighLive, conditionalPropose eligible your tool client-side or offline-first tools to the public directory with accurate site and source links.The product must genuinely keep user data local and meet the directory's local-first scope; submit a human-reviewed PR.2026-08-05Open Local-First Software (LoFi) submit page (new tab)Local-First Software (LoFi) details
9684MacPorts70Link type unknownports.macports.orgDeveloper registriesFreeModerateHighVerified liveCreate and test a Portfile for an open-source your tool CLI or desktop app, including its canonical homepage.Run lint and local builds, then submit a pull request or a MacPorts Trac submission ticket for review.Official MacPorts guide checked 2026-07-30Open MacPorts submit page (new tab)MacPorts details
9784Maven70Link type unknownmaven.comOther opportunitiesFreeModerateHighVerified liveBuild and teach a live, project-based cohort on creating local-first privacy tools or accessible web utilities, supported by a substantive public syllabus and real instructor profile.The official accelerator targets professional development for mid-career business or tech learners and requires a Stripe Connect-supported country. Marketplace discovery follows traction; the instructor must deliver the promised live teaching and projects.2026-08-03Open Maven submit page (new tab)Maven details
9884Maven Central70Link type unknowncentral.sonatype.comDeveloper registriesFreeModerateHighVerified liveRelease a useful Java or Kotlin SDK and include the project homepage, source control, license and developer metadata in the POM.Requires namespace verification, signed artifacts and complete POM metadata; releases are permanent.Official Sonatype Central docs checked 2026-07-30Open Maven Central submit page (new tab)Maven Central details
9984MELPA55Link type unknownmelpa.orgDeveloper registriesFreeModerateHighVerified liveCreate a useful Emacs client for a public your tool API, host its source openly and submit a MELPA recipe pull request.Package source must be public, installable and maintained; recipe and naming rules are reviewed by maintainers.2026-08-03Open MELPA submit page (new tab)MELPA details
10084Mendeley Data90Nofollowmendeley.comPublishing platformsFreeModerateHighVerified livePublish an original, human-verified privacy or accessibility benchmark with complete methodology, provenance, schema, license, and a relevant project citation.Intended for research data, not promotion. Do not upload personal/confidential data or AI-generated datasets; published versions receive a DOI and generally require a new version or support request for later changes/removal.2026-08-03Open Mendeley Data submit page (new tab)Mendeley Data 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.