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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 1,123 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
1100ACT Rules Community45Dofollowact-rules.github.ioCommunities and forumsFreeQuickDo firstVerified liveImplement applicable ACT Rules, execute official test cases, publish the implementation report, join ACT-R CG, and propose your tool as an implementation.Requires genuine rule implementation and reproducible results; inaccurate or partial claims will not qualify.Official implementation instructions checked 2026-08-05Open ACT Rules Community submit page (new tab)ACT Rules Community details
2100AlternativeTo80Nofollowalternativeto.netStartup directoriesFreeQuickDo firstNot submittedCreate account, wait cooldown if new, submit your tool as platform alternative.Avoid per-tool submissions for calculators/converters; no URLs in description.2026-07-30Open AlternativeTo submit page (new tab)AlternativeTo details
3100CB Insights90Nofollowcbinsights.comProfiles and entitiesFreeQuickDo firstNot submittedRequest an Analyst Briefing and complete the company survey with product, customer, growth, funding, and market evidence.Submission does not guarantee profile or research inclusion; all metrics and claims must be supportable and current.2026-08-03Open CB Insights submit page (new tab)CB Insights details
4100Content Authenticity Initiative60Link type unknowncontentauthenticity.orgPublishing platformsFreeQuickDo firstVerified liveApply as a company and accurately describe your tool C2PA or content-provenance tools and intended participation.Open membership, but genuine participation is expected; directory may publish the organization name/logo and link.2026-08-04Open Content Authenticity Initiative submit page (new tab)Content Authenticity Initiative details
5100CSA STAR Registry80Sometimes dofollowcloudsecurityalliance.orgDeveloper registriesFreeQuickDo firstLive, conditionalComplete the current CAIQ or AI-CAIQ truthfully and submit your tool real cloud service to the STAR Registry.Cloud/SaaS fit only; disclose actual controls and update annually. Never overstate security practices.2026-08-04Open CSA STAR Registry submit page (new tab)CSA STAR Registry details
6100CycloneDX Tool Center55Link type unknowncyclonedx.orgSoftware directoriesFreeQuickDo firstVerified liveAdd standards-valid CycloneDX support, then submit the structured your tool entry through the official contribution workflow.Must accurately state supported CycloneDX versions, functions and licensing; a listing is not product certification.2026-08-05 official CycloneDX Tool CenterOpen CycloneDX Tool Center submit page (new tab)CycloneDX Tool Center details
7100FreeNoSignup—Link type unknownfreenosignup.comSoftware directoriesFreeQuickDo firstVerified liveSubmit one or more free your tool utilities that work without registration.Tool must be active, useful, web-based, privacy-respecting and usable without signup.2026-08-05Open FreeNoSignup submit page (new tab)FreeNoSignup details
8100Glama MCP Directory50Link type unknownglama.aiOther opportunitiesFreeQuickDo firstNot submittedDeploy a maintained your tool MCP server from GitHub, Docker, npm, or PyPI, verify maintainer ownership, and switch it public only after production testing.Hosted servers are private by default; public listing requires a real working server, and ranking or backlink attributes remain platform-controlled.2026-08-03Open Glama MCP Directory submit page (new tab)Glama MCP Directory details
9100MERLOT70Link type unknownmerlot.orgOther opportunitiesFreeQuickDo firstVerified livePublish a genuinely reusable privacy or accessibility lesson on your tool, give it a stable URL and open license, then add its educational metadata to MERLOT.The resource must be an online OER with its own URL; subscription-only material is inappropriate. Supply discipline, audience, material type, description, author, license, cost, and accessibility metadata honestly.2026-08-03Open MERLOT submit page (new tab)MERLOT details
10100OpenSSF Best Practices Badge60Link type unknownbestpractices.devProfiles and entitiesFreeQuickDo firstLive, conditionalOpen-source a well-scoped your tool component, document its governance, tests, security process, and complete the passing-badge self-assessment.Only genuine FLOSS projects qualify; claims are checked and must be backed by public evidence, including a public repository, license, contribution path, HTTPS, tests, and vulnerability-reporting process.2026-08-03Open OpenSSF Best Practices Badge submit page (new tab)OpenSSF Best Practices Badge details
11100Postman90Nofollowpostman.comProfiles and entitiesFreeQuickDo firstLive, conditionalCreate an your tool public workspace with sanitized API collections, examples, documentation, and a canonical homepage link on the publisher profile.Never publish tokens, cookies, secrets, private endpoints, or user data; run the secret scan before making a workspace public.https://learning.postman.com/v11/docs/collaborating-in-postman/using-workspaces/public-workspacesOpen Postman submit page (new tab)Postman details
12100Product Hunt90Nofollowproducthunt.comLaunch platformsFreeQuickDo firstNot submittedLaunch your platform first; prepare maker comment and assets.No upvote asks; personal accounts; schedule proper launch.2026-07-30Open Product Hunt submit page (new tab)Product Hunt details
13100RapidAPI Hub80Link type unknownrapidapi.comMarketplaces and app storesFreeQuickDo firstVerified liveList a stable your tool API with OpenAPI definitions, clear endpoints, health checks and its official website in the permitted listing field.The API must be functional, accurately documented and securely operated; avoid listing browser-only tools as fake APIs.2026-08-03Open RapidAPI Hub submit page (new tab)RapidAPI Hub details
14100SaaSHub70Dofollowsaashub.comStartup directoriesFreeQuickDo firstNot submittedSubmit platform, add competitor alternatives, verify domain email.Add competitors; avoid paid multi-submit page confusion.2026-07-30Open SaaSHub submit page (new tab)SaaSHub details
15100SAYUJ by STPI—Link type unknownsayuj.netStartup directoriesFreeQuickDo firstVerified liveRegister your tool as an Indian startup, complete its offering profile, and use Product Expo or Startup Connect when relevant.Requires email and Indian mobile OTP; STPI ownership does not imply government endorsement of listed startups.2026-08-05 official registration and STPI About SAYUJ pagesOpen SAYUJ by STPI submit page (new tab)SAYUJ by STPI details
16100Smithery MCP Registry50Link type unknownsmithery.aiDeveloper registriesFreeQuickDo firstNot submittedPublish a genuine hosted, external, or stdio MCP server exposing a small set of consent-based your tool utilities with complete metadata and documentation.Server must be operational and compliant; public page and analytics do not guarantee prominence, referral traffic, or dofollow links.2026-08-03Open Smithery MCP Registry submit page (new tab)Smithery MCP Registry details
17100StartupTN35Link type unknownstartuptn.inStartup directoriesFreeQuickDo firstLive, conditionalUse the official Register flow and build a verified your tool company profile if Tamil Nadu startup rules are met.Use the homepage registration flow because deep URLs change; public visibility and acceptance remain conditional.2026-08-04Open StartupTN submit page (new tab)StartupTN details
18100Tracxn75Nofollowtracxn.comStartup directoriesFreeQuickDo firstNot submittedSubmit the company website and concise product, market, founder, funding, and traction details for analyst review.Analysts decide inclusion and may request documents; provide only verifiable company, funding, team, and traction data.2026-08-03Open Tracxn submit page (new tab)Tracxn details
1998Artifact 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
2098awesome-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
2198Claude 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
2298crates.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
2398Dealroom75Nofollowdealroom.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
2498Dify 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
2598e2770Sometimes 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
2698Enterprise 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
2798Flipsnack75Sometimes 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
2898Genially80Nofollowgenially.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
2998Godot 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
3098Google 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
3198Hacker 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
3298JSR55Link 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
3398JuliaHub50Link 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
3498Kerala 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
3598Launchpad90Nofollowlaunchpad.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
3698Leanpub80Sometimes 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
3798Linear 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
3898Maharashtra 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
3998Mattermost 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
4098MCP 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
4198Microsoft 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
4298Neeed 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
4398Nick 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
4498NIST 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
4598NoSignupTools—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
4698OER 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
4798Open 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
4898OperatorHub.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
4998Packagist75Nofollowpackagist.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
5098Pitchwall30Link 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
5198Postman 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
5298PyPI90Nofollowpypi.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
5398Quay.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
5498Replicate75Link 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
5598RubyGems.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
5698Slack 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
5798SPDX 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
5898Spreaker85Nofollowspreaker.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
5998Startup 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
6098TechImply50Link 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
6198TechSagar40Link 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
6298The 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
6398TinyStartups30Link 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
6498WebCatalog50Link 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
6595Accessibility Weekly35Dofollowa11yweekly.comPublishing platformsFreeInvolvedDo firstVerified liveFirst publish a fresh, human-authored accessibility case study or tutorial with real lessons and disabled-user perspective where available, then suggest that single article by email.Prefer content from the last two months; it must be accurate, educational, accessible without paywall/signup, and not a product page or press release. No overlays, link exchanges, guest-post deals, paid links, or strong paid-product calls to action.2026-08-03Open Accessibility Weekly submit page (new tab)Accessibility Weekly details
6695Console.dev50Sometimes dofollowconsole.devSoftware directoriesFreeInvolvedDo firstVerified liveEmail the strongest developer-focused your tool feature with a self-service demo, documentation, privacy model, and concise reason it is novel.Primary users must be developers; the tool should be high quality, fast, maintained, documented, privacy-safe, and independently interesting.https://console.dev/selection-criteriaOpen Console.dev submit page (new tab)Console.dev details
6795Educative75Sometimes dofolloweducative.ioOther opportunitiesFreeInvolvedDo firstVerified livePropose a text-based, interactive course on web privacy, security headers, local-first tools, or accessible frontend testing, with practical code exercises and clear outcomes.Applicants need real subject expertise and clear teaching ability. The outline, lessons, code, and claims receive Author Success, technical, and editorial review; the course must teach independently of AltFTool promotion.2026-08-03Open Educative submit page (new tab)Educative details
6895Good AI Tools—Link type unknowngoodaitools.comAI tool directoriesFreeInvolvedDo firstNeeds checkingSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/good-ai-toolsOpen Good AI Tools submit page (new tab)Good AI Tools details
6995Help Net Security85Sometimes dofollowhelpnetsecurity.comPublishing platformsFreeInvolvedDo firstVerified liveSend a concise exclusive angle on a new your tool security feature, dataset, vulnerability study, or expert commentary.Send pitches to the listed editorial address; relevance is essential and the team cannot reply to or publish every pitch.https://www.helpnetsecurity.com/contact/Open Help Net Security submit page (new tab)Help Net Security details
7095OECD.AI Tools Catalogue75Link type unknownoecd.aiAI tool directoriesFreeInvolvedDo firstNeeds checkingSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/oecd-ai-tools-catalogueOpen OECD.AI Tools Catalogue submit page (new tab)OECD.AI Tools Catalogue details
7195Security Boulevard70Sometimes dofollowsecurityboulevard.comPublishing platformsFreeInvolvedDo firstVerified livePitch a vendor-neutral security article using original your tool tests, threat-model findings, or privacy research.Content must be original, transparent about authorship, and vendor-neutral; promotional posts belong in paid programs.https://securityboulevard.com/write-for-security-boulevard/Open Security Boulevard submit page (new tab)Security Boulevard details
7295Softpedia90Nofollowsoftpedia.comSoftware directoriesFreeInvolvedDo firstVerified liveSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Listing link is currently reported nofollow.2026-07-30 • https://www.submission.directory/site/softpediaOpen Softpedia submit page (new tab)Softpedia details
7395The A11Y Project70Dofollowa11yproject.comPublishing platformsFreeInvolvedDo firstVerified livePitch a short, beginner-friendly, human-authored accessibility post through an issue, or submit one established free your tool accessibility resource under the correct Resources category.Maintainers assess quality, host accessibility, mission, and author standing. No press releases, overlays, Medium links, affiliate/referral schemes, UTM tracking, SEO/backlink deals, plagiarism, or product promotion; contributions use the project's APLv2 license.2026-08-03Open The A11Y Project submit page (new tab)The A11Y Project details
7495ToolFame—Link type unknowntoolfame.comSoftware directoriesFreeInvolvedDo firstNot submittedSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/toolfameOpen ToolFame submit page (new tab)ToolFame details
7595ToolPilot35Link type unknowntoolpilot.aiSoftware directoriesFreeInvolvedDo firstNot submittedSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/toolpilotOpen ToolPilot submit page (new tab)ToolPilot details
7695Towards AI60Sometimes dofollowtowardsai.comPublishing platformsFreeInvolvedDo firstVerified liveSubmit a useful AI privacy, local processing, prompt-security, or responsible-tooling tutorial with reproducible examples.Submit a complete draft for editorial review; avoid thin AI-generated or product-led content and expect no guaranteed placement.https://towardsai.com/contribute/Open Towards AI submit page (new tab)Towards AI details
7795Turbo0—Link type unknownturbo0.comSoftware directoriesFreeInvolvedDo firstNot submittedSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Listing link is currently reported nofollow.2026-07-30 • https://www.submission.directory/site/turbo0Open Turbo0 submit page (new tab)Turbo0 details
7895We Are Founders Directory—Link type unknowndirectory.wearefounders.ukStartup directoriesFreeInvolvedDo firstVerified liveSubmit your tool for a hand-reviewed founder-tool profile and direct website CTA.Live product with real founder value; vapourware and thin AI wrappers are rejected.2026-08-05Open We Are Founders Directory submit page (new tab)We Are Founders Directory details
7995Web Tools Weekly45Link type unknownwebtoolsweekly.comSoftware directoriesFreeInvolvedDo firstNot submittedSubmit one polished your tool web utility that is directly useful to front-end developers, programmers, or designers, with a precise one-line explanation and working URL.The newsletter accepts tools such as libraries, scripts, web apps, APIs, editors, and services, but not articles or tutorials. Submit via the stated X or Bluesky channel and do not repeatedly pitch the whole directory.2026-08-03Open Web Tools Weekly submit page (new tab)Web Tools Weekly details
8086Activepieces Community Pieces50Link type unknownactivepieces.comCommunities and forumsFreeQuickHighNot submittedBuild and test a useful your tool piece with real actions, publish the package under a unique organization scope, and maintain version compatibility.Users install community pieces through My Pieces; package publication alone does not guarantee central-directory promotion or a followed backlink.2026-08-03Open Activepieces Community Pieces submit page (new tab)Activepieces Community Pieces details
8186Alfred Gallery50Link type unknownalfred.appDesign galleriesFreeQuickHighVerified liveBuild a privacy-safe macOS Alfred workflow that opens or runs useful your tool actions, publish it on the forum, gather feedback, and seek Gallery inclusion.Gallery submission is invitation-based after community testing; no auto-updater, downloaded executables, unsigned binaries, or unsafe behavior.Official Alfred Gallery submission requirements checked 2026-08-07Open Alfred Gallery submit page (new tab)Alfred Gallery details
8286AnkiWeb Add-ons65Link type unknownankiweb.netMarketplaces and app storesFreeQuickHighVerified liveBuild a useful Anki privacy, study-safety, or accessibility add-on, package it as .ankiaddon, and upload it through AnkiWeb.Must be a working desktop add-on; avoid collecting card data, document permissions, and maintain compatibility across Anki releases.Official Anki add-on sharing guide checked 2026-08-05Open AnkiWeb Add-ons submit page (new tab)AnkiWeb Add-ons details
8386Ansible Galaxy80Nofollowansible.comDeveloper registriesFreeQuickHighNot submittedCreate a tested Ansible collection for supported your tool deployment or audit automation, complete galaxy.yml, version it, and publish with a Galaxy token.Publish only maintained, useful collection content with accurate metadata and versioning; acceptance does not guarantee discovery, referrals, or followed links.2026-08-03Open Ansible Galaxy submit page (new tab)Ansible Galaxy details
8486Apache Airflow Ecosystem90Nofollowairflow.apache.orgOther opportunitiesFreeQuickHighVerified liveCreate a real your tool Airflow provider with hooks/operators and documentation metadata, publish it, then add it to Airflow’s Ecosystem page by PR.Provider must implement apache_airflow_provider metadata, use unique connection types, be documented and packaged; ecosystem PR is evaluated for community usefulness.2026-08-05 — https://airflow.apache.org/docs/apache-airflow-providers/howto/create-custom-providers.htmlOpen Apache Airflow Ecosystem submit page (new tab)Apache Airflow Ecosystem details
8586APIList.fun45Link type unknownapilist.funOther opportunitiesFreeQuickHighLive, conditionalRecommend an official your tool API with its documentation URL, concise Markdown description, category, and technical details.Submit only an active public API with accurate auth, SSL, request, and response information.2026-08-05Open APIList.fun submit page (new tab)APIList.fun details
8686APIs.guru OpenAPI Directory50Link type unknownapis.guruOther opportunitiesFreeQuickHighLive, conditionalWhen your tool exposes a stable public API, host an official OpenAPI definition at a permanent URL and submit it with accurate ownership, category, logo, and metadata.The API must be public through clearly documented access steps, persistent, independently useful, and described by a valid machine-readable definition. APIs.guru aggregates rather than hosts the specification and automatically rechecks its source, so keep the canonical spec stable and current.2026-08-03Open APIs.guru OpenAPI Directory submit page (new tab)APIs.guru OpenAPI Directory details
8786AppDirectory.org—Link type unknownappdirectory.orgSoftware directoriesFreeQuickHighLive, conditionalSubmit your tool once with its strongest free-use case, correct category, concise copy, and product URL.The app must be free or have a meaningful free tier; listings are curated and duplicate submissions are not allowed.2026-08-03Open AppDirectory.org submit page (new tab)AppDirectory.org details
8886Awesome-Selfhosted40Link type unknownawesome-selfhosted.netSoftware directoriesFreeQuickHighLive, conditionalSubmit a mature self-hosted your tool edition using the required YAML entry and canonical website/source links.Must be a working FOSS network app with a release at least four months old; LLM-generated contributions are prohibited.2026-08-05Open Awesome-Selfhosted submit page (new tab)Awesome-Selfhosted details
8986Buildkite Plugins Directory70Link type unknownbuildkite.comMarketplaces and app storesFreeQuickHighVerified liveBuild a pipeline plugin that runs your tool checks on selected artifacts and posts configurable pass, warn, or fail annotations.Use a public repository with the required suffix, valid plugin.yml, hooks, tests, and README; add the official topic for directory sync.Official Buildkite plugin writing documentation checked 2026-08-07Open Buildkite Plugins Directory submit page (new tab)Buildkite Plugins Directory details
9086Capterra90Nofollowcapterra.comSoftware directoriesFreeQuickHighNot submittedList product under software categories.Part of Gartner Digital Markets; good B2B fit.2026-07-30Open Capterra submit page (new tab)Capterra details
9186CodeNewbie Community60Nofollowcodenewbie.orgPublishing platformsFreeQuickHighNot submittedCreate a transparent human profile and publish a beginner-friendly build log or tutorial showing how one your tool privacy utility works and what tradeoffs it has.Follow the community code of conduct, accessibility guidance, Markdown/editor rules, and honest authorship. Use canonical URLs where republishing and avoid promotional flooding.2026-08-03Open CodeNewbie Community submit page (new tab)CodeNewbie Community details
9286CodePen90Nofollowcodepen.ioProfiles and entitiesFreeQuickHighVerified liveBuild an original interactive demo of an your tool utility, document the use case in Pen Details, and add your tool as one of the public profile links.Public Pens are searchable and MIT-licensed; publish original useful code, not a blank redirect or copied landing page.https://blog.codepen.io/docs/getting-around/your-profile/Open CodePen submit page (new tab)CodePen details
9386CodeSandbox90Nofollowcodesandbox.ioProfiles and entitiesFreeQuickHighNot submittedPublish a small open demo that explains one your tool algorithm or UI pattern and add the product website to the founder profile links.The sandbox must run and provide reusable technical value; public projects and profile links are UGC and may be nofollowed.2026-08-03Open CodeSandbox submit page (new tab)CodeSandbox details
9486CoFoundersLab65Nofollowcofounderslab.comStartup directoriesFreeQuickHighVerified liveCreate a complete founder and startup profile for your tool and participate in relevant founder discussions or connection requests.Use a real founder identity, contribute context before mentioning AltFTool, and never send unsolicited promotional messages.Official CoFoundersLab signup and community path checked 2026-08-07Open CoFoundersLab submit page (new tab)CoFoundersLab details
9586Cybil Knowledge Portal40Link type unknowncybilportal.orgSoftware directoriesFreeQuickHighVerified liveSubmit a genuine international cyber-capacity-building project, tool, publication or webinar with evidence and a live resource URL.Portal staff curate and may validate with participants; must have direct cyber-capacity-building relevance, not be a generic product listing.2026-08-05 — https://cybilportal.org/submit-your-cyber-capacity-building-projects/Open Cybil Knowledge Portal submit page (new tab)Cybil Knowledge Portal details
9686daily.dev75Nofollowdaily.devProfiles and entitiesFreeQuickHighNot submittedComplete the founder's developer profile, add your tool as real project experience, and publish useful privacy or security engineering posts with contextual links.Participate as a genuine community member; avoid promotional link dumps, and do not assume any particular search-link attribute.2026-08-03Open daily.dev submit page (new tab)daily.dev details
9786DatoCMS Plugin Marketplace65Link type unknowndatocms.comMarketplaces and app storesFreeQuickHighVerified liveBuild an your tool privacy or security field plugin, publish the npm package, and use your tool as its homepage and support site.The package name must start datocms-plugin-, include the required keyword, and meet Plugin SDK requirements; ingestion is automatic.Official DatoCMS Marketplace publishing documentation checked 2026-08-07Open DatoCMS Plugin Marketplace submit page (new tab)DatoCMS Plugin Marketplace details
9886Directus Marketplace65Link type unknowndirectus.comMarketplaces and app storesFreeQuickHighVerified livePublish a genuine your tool Directus extension to npm and complete author, documentation, support, and website metadata.Requires the Directus extension keyword and metadata; availability depends on supported extension type and matching npm and GitHub author identity.Official Directus Marketplace publishing documentation checked 2026-08-07Open Directus Marketplace submit page (new tab)Directus Marketplace details
9986DokuWiki Plugins70Nofollowdokuwiki.orgMarketplaces and app storesFreeQuickHighVerified liveBuild a DokuWiki privacy, redaction, accessibility, or secure-export plugin, publish its code and create the canonical plugin page used by the extension directory.Must be an installable maintained plugin with accurate compatibility, download, source, license, and security information.Official DokuWiki extension pages and plugin wizard checked 2026-08-05Open DokuWiki Plugins submit page (new tab)DokuWiki Plugins details
10086Eclipse Marketplace90Nofolloweclipse.orgMarketplaces and app storesFreeQuickHighVerified livePublish a functional Eclipse plugin for an your tool developer use case, then create a complete marketplace listing with official support and source links.Requires an Eclipse account, a working installable plugin and compliance with marketplace content and trademark rules.2026-08-03Open Eclipse Marketplace submit page (new tab)Eclipse Marketplace details

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.