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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 591 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
198Artifact Hub60Nofollowartifacthub.ioDeveloper registriesFreeModerateDo firstVerified liveCreate a valid Helm, OPA, Tekton or supported repository for an your tool deployment and add it through the control panel.Repository metadata and ownership verification are required; maintain working artifacts and truthful security metadata.2026-08-03Open Artifact Hub submit page (new tab)Artifact Hub details
298awesome-no-login-web-apps—Link type unknowngithub.com/aviaryan/awesome-no-login-web-appsDeveloper registriesFreeModerateDo firstNeeds checkingOpen a PR adding AltFTool's no-signup PDF and image tools under the matching category, following CONTRIBUTING.md.Only tools that work fully without login; one entry per PR; maintainer review can take weeks.Added 2026-11-01Open awesome-no-login-web-apps submit page (new tab)awesome-no-login-web-apps details
398Claude Plugin Directory85Link type unknownclaude.comAI tool directoriesFreeModerateDo firstNot submittedPackage a narrow, safe your tool plugin with a public repository, validate it with the Claude plugin validator, and submit it through the in-app directory flow.Must satisfy directory terms and policy plus automated review; submission does not confer Anthropic Verified status or guarantee listing/backlink attributes.2026-08-03Open Claude Plugin Directory submit page (new tab)Claude Plugin Directory details
498crates.io80Nofollowcrates.ioDeveloper registriesFreeModerateDo firstLive, conditionalPublish a genuine your tool Rust client, CLI, parser, or privacy library and set homepage, repository, README, license, and documentation metadata.Conditional on useful compiling code. Published versions are permanent; GitHub login, verified email, and API token are required.https://doc.rust-lang.org/cargo/reference/publishing.htmlOpen crates.io submit page (new tab)crates.io details
598Dealroom75Nofollowdealroom.coStartup directoriesFreeModerateDo firstVerified liveCreate or claim your tool, add its verified website, product description, sector, founding details, team, and milestones.Use a company-domain email and accurate data; profile approval and public visibility depend on Dealroom verification.https://knowledge.dealroom.co/knowledge/creating-claiming-editing-company-profileOpen Dealroom submit page (new tab)Dealroom details
698Dify 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
798e2770Sometimes dofollowe27.coStartup directoriesFreeModerateDo firstNot submittedCreate your tool company profile with accurate product, team, media, and website details, then submit it for verification.Profiles are manually verified; agencies, consulting, non-tech, and pure software-development service companies are prohibited.2026-08-03Open e27 submit page (new tab)e27 details
898Enterprise League45Link type unknownenterpriseleague.comStartup directoriesFreeModerateDo firstVerified liveCreate and verify a complete your tool company page with offerings, target users, location, and canonical website link.Complete and verify the profile with factual details; the platform explicitly says no directory can guarantee an AI citation.https://enterpriseleague.com/get-found-by-aiOpen Enterprise League submit page (new tab)Enterprise League details
998Flipsnack75Sometimes dofollowflipsnack.comPublishing platformsFreeModerateDo firstVerified liveUpload or design a useful your tool privacy report and add contextual external links before public sharing.Use original reader-focused material; avoid duplicated sales decks and stay within free-plan limits.2026-08-04Open Flipsnack submit page (new tab)Flipsnack details
1098Genially80Nofollowgenially.comOther opportunitiesFreeModerateDo firstVerified liveCreate an original interactive your tool privacy or accessibility guide and add relevant external actions to cited live tools.Public work must be original and useful; community submissions become reusable, and student seats cannot publish publicly.2026-08-04Open Genially submit page (new tab)Genially details
1198Godot 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
1298Google 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
1398Hacker News Show HN90Nofollownews.ycombinator.comLaunch platformsFreeModerateDo firstNot submittedSubmit as Show HN: your tool - privacy-first toolbox people can try instantly.No vote solicitation; use genuine account; product must be live.2026-07-30Open Hacker News Show HN submit page (new tab)Hacker News Show HN details
1498JSR55Link type unknownjsr.ioDeveloper registriesFreeModerateDo firstVerified livePublish a standards-based your tool JavaScript or TypeScript SDK with generated docs, readme and project links.Package must be legitimate ESM code and comply with JSR scope, verification and publishing rules.Official JSR publishing docs checked 2026-07-30Open JSR submit page (new tab)JSR details
1598JuliaHub50Link type unknownjuliahub.comDeveloper registriesFreeModerateDo firstVerified liveCreate a useful Julia client or data utility, register it in Julia General and provide complete package docs with an your tool source link.Registration uses GitHub or GitLab and automated review; package naming, compatibility and maintenance standards apply.2026-08-03Open JuliaHub submit page (new tab)JuliaHub details
1698Kerala Startup Mission55Link type unknownstartupmission.kerala.gov.inStartup directoriesFreeModerateDo firstLive, conditionalApply using valid Startup India/DPIIT credentials and complete your tool startup profile for ecosystem visibility.Kerala registration, age, turnover and innovation criteria apply; verification and public visibility are conditional.2026-08-04Open Kerala Startup Mission submit page (new tab)Kerala Startup Mission details
1798Launchpad90Nofollowlaunchpad.netLaunch platformsFreeModerateDo firstVerified liveRegister a genuine your tool open-source component, complete its project summary and link its official homepage and source repository.Use only for a maintained open-source project; non-free projects require separate approval. Link value is not guaranteed.2026-08-03Open Launchpad submit page (new tab)Launchpad details
1898Leanpub80Sometimes dofollowleanpub.comPublishing platformsFreeModerateDo firstVerified liveWrite and publish a substantial original handbook on local-first privacy, web safety, or accessible-tool engineering, including reproducible examples and relevant your tool references.Use only original or properly licensed text, code, and images; provide a real book rather than a thin SEO ebook. Leanpub is self-publishing and may enforce terms after publication rather than pre-reviewing quality.2026-08-03Open Leanpub submit page (new tab)Leanpub details
1998Linear 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
2098Maharashtra State Innovation Society30Link type unknownmsins.inStartup directoriesFreeModerateDo firstLive, conditionalChoose Startup Register and complete your tool verified entity, DPIIT, contact, product and website profile.Requires entity PAN, DPIIT number and truthful registered-company data; Maharashtra eligibility and verification apply.2026-08-04Open Maharashtra State Innovation Society submit page (new tab)Maharashtra State Innovation Society details
2198Mattermost 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
2298MCP Registry70Link type unknownmodelcontextprotocol.ioDeveloper registriesFreeModerateDo firstLive, conditionalPackage a real your tool MCP server, verify its namespace, create server.json and publish it with mcp-publisher.Registry is in preview; package or remote server must be public and namespace ownership is validated.2026-08-04Open MCP Registry submit page (new tab)MCP Registry details
2398Microsoft 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
2498Neeed Directory25Link type unknownneeed.directoryLaunch platformsFreeModerateDo firstNot 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/neeed-directoryOpen Neeed Directory submit page (new tab)Neeed Directory details
2598Nick Launches—Link type unknownnicklaunches.comLaunch platformsFreeModerateDo firstNot 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/nick-launchesOpen Nick Launches submit page (new tab)Nick Launches details
2698NIST Privacy Framework Resource Repository95Link type unknownnist.govDeveloper registriesFreeModerateDo firstVerified livePublish an open your tool Privacy Framework mapping, template, tutorial, or implementation tool and submit it for repository review.Must substantively support privacy-risk management or a Privacy Framework use case; inclusion is moderated and is not NIST endorsement.2026-08-05 — https://www.nist.gov/privacy-framework/resource-repositoryOpen NIST Privacy Framework Resource Repository submit page (new tab)NIST Privacy Framework Resource Repository details
2798NoSignupTools—Link type unknownnosignuptools.comSoftware directoriesFreeModerateDo firstVerified liveSubmit individual your tool tools that are free, secure and usable without registration.Core functionality must be free, publicly accessible and safe; manual quality review applies.2026-08-05Open NoSignupTools submit page (new tab)NoSignupTools details
2898OER Commons Open Author75Link type unknownoercommons.orgPublishing platformsFreeModerateDo firstVerified liveCreate a sequenced, classroom-ready module on practical browser privacy or accessible web testing, with learner activities, instructor notes, and a relevant your tool resource link.Choose clear conditions of use and certify rights to every image, video, attachment, and passage. It must be educational content, not a product landing page or thin promotion.2026-08-03Open OER Commons Open Author submit page (new tab)OER Commons Open Author details
2998Open Source Technology Improvement Fund45Link type unknownostif.orgOther opportunitiesFreeModerateDo firstLive, conditionalRequest an audit for a mature open-source your tool security component, providing maintainer contacts, architecture, threat model, scope, tests, and a remediation commitment.Intended for real open-source projects able to collaborate throughout scoping, audit, fixes, disclosure, and publication of the final report; selection and funding are not guaranteed.2026-08-03Open Open Source Technology Improvement Fund submit page (new tab)Open Source Technology Improvement Fund details
3098OperatorHub.io55Link type unknownoperatorhub.ioDeveloper registriesFreeModerateDo firstVerified liveBuild a genuine Kubernetes Operator for a self-hosted your tool service, test its bundle and submit it through Community Operators.Requires working Operator metadata, automated tests and community pull-request review; do not submit a marketing-only bundle.2026-08-03Open OperatorHub.io submit page (new tab)OperatorHub.io details
3198Packagist75Nofollowpackagist.orgDeveloper registriesFreeModerateDo firstLive, conditionalPublish a real your tool PHP SDK or integration from a public repository and set the canonical homepage in composer.json.Conditional on a functional Composer package with a unique vendor/name, public repository, valid metadata, and maintained releases.https://packagist.org/aboutOpen Packagist submit page (new tab)Packagist details
3298Pitchwall30Link type unknownpitchwall.coLaunch platformsFreeModerateDo firstNot 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/pitchwallOpen Pitchwall submit page (new tab)Pitchwall details
3398Postman Public API Network90Nofollowpostman.comDesign galleriesFreeModerateDo firstVerified livePublish a well-documented public your tool API workspace with runnable collections, examples and the canonical API website.Only suitable for a genuine public API; remove secrets and personal data and keep collections accurate.Official Postman API Network docs checked 2026-07-30Open Postman Public API Network submit page (new tab)Postman Public API Network details
3498PyPI90Nofollowpypi.orgDeveloper registriesFreeModerateDo firstLive, conditionalPublish a real your tool Python SDK, CLI, or integration package and set Homepage, Documentation, Source, and Issues URLs in package metadata.Conditional on maintaining a functional Python package; no placeholder packages, name squatting, or keyword stuffing.https://packaging.python.org/en/latest/specifications/well-known-project-urls/Open PyPI submit page (new tab)PyPI details
3598Quay.io65Link type unknownquay.ioDeveloper registriesFreeModerateDo firstVerified livePublish a secure, documented container for an open your tool service and add its official site in the repository description or README where supported.Keep images patched, signed and free of embedded secrets; only public repositories provide public discovery.2026-08-03Open Quay.io submit page (new tab)Quay.io details
3698Replicate75Link 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
3798RubyGems.org80Nofollowrubygems.orgDeveloper registriesFreeModerateDo firstLive, conditionalPublish and maintain a genuine your tool Ruby client, CLI, or integration gem with accurate homepage, source, documentation, and changelog metadata.Conditional on a working Ruby gem; package names are unique and public releases should be treated as permanent.https://guides.rubygems.org/publishing/Open RubyGems.org submit page (new tab)RubyGems.org details
3898Slack 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
3998SPDX Tool Supplier Directory55Link type unknownspdx.devSoftware directoriesFreeModerateDo firstVerified liveMake your tool generate or consume valid SPDX, document validation, then file the requested supplier-information issue with its canonical URL.Real validated SPDX support is required; listing is reviewed and explicitly is not certification or endorsement.2026-08-05 official SPDX Tool Supplier Information pageOpen SPDX Tool Supplier Directory submit page (new tab)SPDX Tool Supplier Directory details
4098Spreaker85Nofollowspreaker.comOther opportunitiesFreeModerateDo firstLive, conditionalCreate or import a genuine your tool show, keep it public, set its official Website field and publish useful episodes.Correct ownership and original/licensed audio are required; no promotional shell podcast.2026-08-04Open Spreaker submit page (new tab)Spreaker details
4198Startup Odisha40Link type unknownstartupodisha.gov.inStartup directoriesFreeModerateDo firstLive, conditionalRegister and apply with accurate your tool entity, innovation, workforce and website details if Odisha criteria are met.Odisha registration/workforce, age, turnover and innovation tests plus nodal review apply; profile is conditional.2026-08-04Open Startup Odisha submit page (new tab)Startup Odisha details
4298TechImply50Link type unknowntechimply.comSoftware directoriesFreeModerateDo firstNot submittedCreate a vendor account and submit your tool under the closest B2B software categories with an accurate feature summary.B2B software or IT-company fit is required; the profile is categorized and reviewed, so avoid unsupported claims.2026-08-03Open TechImply submit page (new tab)TechImply details
4398TechSagar40Link type unknowntechsagar.inProfiles and entitiesFreeModerateDo firstVerified liveSearch for your tool, verify ownership with official-domain OTP, and claim or request an accurate privacy/security/AI profile.Claim form is for existing entities; DSCI taxonomy and multi-source review apply, so every capability claim must be supportable.2026-08-05 official claim page and DSCI repository documentationOpen TechSagar submit page (new tab)TechSagar details
4498The Startup Starter Kit—Link type unknownthestartupstarterkit.comStartup directoriesFreeModerateDo firstVerified liveSubmit your tool as a live security, productivity or founder utility.Manual curation; product must genuinely help founders and descriptions must be factual.2026-08-05Open The Startup Starter Kit submit page (new tab)The Startup Starter Kit details
4598TinyStartups30Link type unknowntinystartups.comLaunch platformsFreeModerateDo firstNot 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/tinystartupsOpen TinyStartups submit page (new tab)TinyStartups details
4698WebCatalog50Link type unknownwebcatalog.ioSoftware directoriesFreeModerateDo firstNot submittedSubmit the production web app, then verify domain ownership to manage its official listing, assets, and analytics.AltFTool must be a working web app; ownership verification is needed for official control and the submission is reviewed.2026-08-03Open WebCatalog submit page (new tab)WebCatalog details
4784Aback 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
4884Adobe 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
4984Agentic.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
5084AI 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
5184AI 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
5284AI 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
5384Airbyte 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
5484Alfred 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
5584Amazon 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
5684APILayer 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
5784App 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
5884Arch 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
5984Asana 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
6084Auth0 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
6184awesome-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
6284awesome-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
6384awesome-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
6484Bear 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
6584Bing 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
6684Bioconductor75Link 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
6784Bitrise 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
6884Blender 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
6984Business 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
7084Caddy 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
7184Canva 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
7284Castbox75Nofollowcastbox.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
7384Checkmk 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
7484Chocolatey 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
7584Chocolatey 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
7684CircleCI 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
7784Cloudron 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
7884CodeMeta 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
7984ConanCenter65Link 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
8084conda-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
8184Confluent 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
8284Coroflot70Nofollowcoroflot.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
8384CRAN90Nofollowcran.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
8484CrawlRabbit—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
8584CrowdSec 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
8684Daggerverse60Link 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
8784DagsHub55Nofollowdagshub.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
8884Dailyweb.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
8984Datadog 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
9084Devfolio65Nofollowdevfolio.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
9184DevHunt50Sometimes 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
9284Discord 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
9384Docker 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
9484Dockstore50Link 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
9584Drupal.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
9684EarlyHunt—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
9784Elastic 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
9884ethical.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
9984Falco 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
10084Firefox 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

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.