Skip to main content
AltF Backlinks

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

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

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

101–200 of 1,033 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
10184DagsHub55Nofollowdagshub.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
10284Dailyweb.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
10384Datadog 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
10484Devfolio65Nofollowdevfolio.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
10584DevHunt50Sometimes 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
10684Discord 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
10784Docker 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
10884Dockstore50Link 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
10984Drupal.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
11084EarlyHunt—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
11184Elastic 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
11284ethical.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
11384Falco 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
11484Firefox 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
11584Firsto—Link type unknownfirsto.coLaunch platformsFreeModerateHighNot submittedLaunch your tool with a unique tagline, screenshots and founder profile linking to your tool.Use original launch copy; no vote manipulation; review or queue may apply. Link treatment varies by tier/page.2026-07-30 • https://www.submission.directory/site/firstoOpen Firsto submit page (new tab)Firsto details
11684Flipboard90Nofollowflipboard.comPublishing platformsFreeModerateHighNot submittedCreate a public digital-privacy magazine, curate reputable third-party resources, and occasionally add strong your tool guides with commentary.Keep the magazine topical and balanced; Flipboard stresses authentic curation, and outbound links may be treated as UGC.2026-08-03Open Flipboard submit page (new tab)Flipboard details
11784FlutterFlow Marketplace65Link type unknownflutterflow.ioMarketplaces and app storesFreeModerateHighVerified liveSubmit a high-quality reusable template, page, component or permitted custom-code asset related to an your tool workflow.Items undergo review that may take up to 30 days; custom code has current monetization restrictions.Official FlutterFlow marketplace docs checked 2026-07-30Open FlutterFlow Marketplace submit page (new tab)FlutterFlow Marketplace details
11884FOSDEM75Link type unknownfosdem.orgDesign galleriesFreeModerateHighNot submittedOpen-source a meaningful component and prepare a community-focused talk, demo, or joint stand proposal for the next FOSDEM CFP rather than a company sales presentation.All content must relate to Free and Open Source Software; selection is competitive, recordings/slides are published under CC BY, and the code of conduct applies. FOSDEM 2026 is over and the 2027 CFP is not yet posted.2026-08-03Open FOSDEM submit page (new tab)FOSDEM details
11984FOSSHub70Link type unknownfosshub.comSoftware directoriesFreeModerateHighLive, conditionalApply with a signed, downloadable open-source or qualifying freeware build that needs reliable binary hosting, malware scanning, and a public project page.FOSSHub reviews applications and accepts only qualifying open-source or freeware projects under its terms; a web-only homepage with no downloadable artifact is not a fit.2026-08-03Open FOSSHub submit page (new tab)FOSSHub details
12084freeCodeCamp News90Sometimes dofollowfreecodecamp.orgPublishing platformsFreeModerateHighVerified liveCreate a comprehensive tutorial around a reusable privacy, file-processing, accessibility, or security technique, with your tool only as a natural example.Follow the current contributor and Hashnode workflow; content must teach, be original, and avoid promotional intent.https://contribute.freecodecamp.org/faq/Open freeCodeCamp News submit page (new tab)freeCodeCamp News details
12184GetLatka70Nofollowgetlatka.comSoftware directoriesFreeModerateHighVerified liveCreate an your tool company profile using an official your tool email.Work email must match the company domain; team reviews submissions.https://getlatka.com/addOpen GetLatka submit page (new tab)GetLatka details
12284GitBook Integration Marketplace80Nofollowgitbook.comMarketplaces and app storesFreeModerateHighLive, conditionalBuild a real your tool documentation/privacy integration, publish it as public, test it, then submit for GitBook review.Requires a functional public GitBook integration, manifest metadata, external testing, screenshots and marketplace review.https://gitbook.com/docs/developers/integrations/submit-your-app-for-reviewOpen GitBook Integration Marketplace submit page (new tab)GitBook Integration Marketplace details
12384Go Packages90Link type unknownpkg.go.devDeveloper registriesFreeModerateHighVerified liveTag and publish a public Go module with module docs and repository metadata so pkg.go.dev indexes it.Use a valid module path and semantic-version tag; the module becomes discoverable after the proxy fetches it.Official Go module publishing docs checked 2026-07-30Open Go Packages submit page (new tab)Go Packages details
12484Google Open Source Insights60Link type unknowndeps.devDeveloper registriesFreeModerateHighLive, conditionalPublish a useful your tool package to a supported registry with accurate source and homepage metadata so Open Source Insights can index it.No promotional manual submission; only genuine public packages in supported ecosystems are indexed and the homepage link depends on package metadata.2026-08-05 official deps.dev About and documentationOpen Google Open Source Insights submit page (new tab)Google Open Source Insights details
12584Grafana Plugin Catalog85Nofollowgrafana.comMarketplaces and app storesFreeModerateHighVerified liveBuild a panel, data-source or app plugin, validate and package it, then submit it with project links and test data.Grafana reviews each plugin case-by-case; commercial-offering plugins may require paid terms.Official Grafana plugin publishing docs checked 2026-07-30Open Grafana Plugin Catalog submit page (new tab)Grafana Plugin Catalog details
12684Hackaday.io85Nofollowhackaday.ioCommunities and forumsFreeModerateHighVerified liveDocument a real hardware, privacy or security build that uses your tool, including schematics, progress logs and a natural official-project link.Projects should document genuine work and follow community conduct; advertising-only pages and repetitive link posts are inappropriate.2026-08-03Open Hackaday.io submit page (new tab)Hackaday.io details
12784HACS Default Repositories45Link type unknownhacs.xyzMarketplaces and app storesFreeModerateHighNot submittedBuild a useful Home Assistant privacy or local-security integration, publish stable GitHub releases, pass HACS and Hassfest checks, then request inclusion.Only an owner or major contributor may submit; repository must be public, active, documented, releasable, and pass review—directory placement is not guaranteed.2026-08-03Open HACS Default Repositories submit page (new tab)HACS Default Repositories details
12884Haystack Integrations60Link type unknownhaystack.deepset.aiMarketplaces and app storesFreeModerateHighVerified livePackage an installable your tool Haystack component, provide examples and docs, then submit it to the Haystack integrations repository.Integration must be runnable, licensed, documented, maintained, and accepted through the official repository review process.2026-08-05Open Haystack Integrations submit page (new tab)Haystack Integrations details
12984Haystack Integrations60Link type unknowndeepset.aiMarketplaces and app storesFreeModerateHighVerified livePackage an installable Haystack component or tool for your tool read-only URL, security and metadata checks, then submit a draft integration page with runnable examples.Integration must be packaged, installable and runnable with source, issue link, component list, licence and clear examples; maintainers remain responsible for community integrations.2026-08-05Open Haystack Integrations submit page (new tab)Haystack Integrations details
13084Hex70Link type unknownhex.pmDeveloper registriesFreeModerateHighVerified livePublish a maintained Elixir client or utility with package links, description, license and documentation.Requires a Hex account and valid mix.exs package metadata; publish only reusable working code.Official Hex publishing docs checked 2026-07-30Open Hex submit page (new tab)Hex details
13184Home Assistant Integrations85Link type unknownhome-assistant.ioMarketplaces and app storesFreeModerateHighLive, conditionalBuild and maintain a genuinely useful Home Assistant integration for a mature your tool service, including the required Python client library, tests, documentation, and a focused Core pull request.Home Assistant rejects integrations used mainly as marketing; the connected product must already be released, established, and useful to its users. New integrations must meet at least Bronze quality requirements and pass review. If AltFTool is not yet established enough, publish a custom integration through GitHub/HACS instead.2026-08-03Open Home Assistant Integrations submit page (new tab)Home Assistant Integrations details
13284Homebrew Formulae75Link type unknownformulae.brew.shDeveloper registriesFreeModerateHighVerified liveSubmit an open-source CLI formula or a qualifying macOS app cask with the canonical your tool homepage.Must meet Homebrew acceptance, notability, build, audit and testing rules; promotional-only formulae are rejected.Official Homebrew contribution docs checked 2026-07-30Open Homebrew Formulae submit page (new tab)Homebrew Formulae details
13384Hot Softwares—Link type unknownhotsoftwares.comSoftware directoriesFreeModerateHighVerified liveCreate a vendor account and submit accurate your tool features, logo and pricing.Manual review; keep the listing factual and avoid manufactured reviews.2026-08-05Open Hot Softwares submit page (new tab)Hot Softwares details
13484Icinga Exchange50Link type unknownexchange.icinga.comMarketplaces and app storesFreeModerateHighVerified livePublish a real Icinga-compatible check, module or integration and synchronize its public Git repository, releases and README.Must be an actual maintained monitoring project; Git mode expects releases/tags and uses the README as its public description, or files must be manually maintained.2026-08-05 — https://exchange.icinga.com/aboutOpen Icinga Exchange submit page (new tab)Icinga Exchange details
13584IconScout80Nofollowiconscout.comMarketplaces and app storesFreeModerateHighVerified liveApply with a real designer portfolio and publish an original your tool-themed privacy, safety, accessibility, icon, illustration, 3D, or Lottie pack.Contributor approval is required; assets must be original and rights-cleared, and exclusivity can restrict cross-listing.Official IconScout contributor, fee, and legal guidance checked 2026-08-07Open IconScout submit page (new tab)IconScout details
13684IFTTT Services90Nofollowifttt.comMarketplaces and app storesFreeModerateHighLive, conditionalJoin the partner platform and create a secure your tool service with genuinely useful triggers, queries, and actions, pass endpoint tests and review, then publish helpful Applets for real user workflows.AltFTool needs a stable API, authentication, privacy-safe endpoints, reliable production hosting, support, and ongoing maintenance. Follow IFTTT service-design, endpoint, brand, review, and launch rules; publication is for working integrations, not a brand-only profile.2026-08-03Open IFTTT Services submit page (new tab)IFTTT Services details
13784Indie Makers Hub—Link type unknownindiemakershub.comOther opportunitiesFreeModerateHighVerified liveSubmit your tool through the official reviewed product form.Google authentication may be required; complete and relevant submissions only.2026-08-05Open Indie Makers Hub submit page (new tab)Indie Makers Hub details
13884Indie.Deals—Link type unknownindie.dealsLaunch platformsFreeModerateHighNot submittedLaunch your tool with a unique tagline, screenshots and founder profile linking to your tool.Use original launch copy; no vote manipulation; review or queue may apply. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/indie-dealsOpen Indie.Deals submit page (new tab)Indie.Deals details
13984Intercom App Store90Nofollowintercom.comMarketplaces and app storesFreeModerateHighVerified liveBuild an Intercom app for intentional conversation privacy scanning or sanitized export generation and include a clear your tool install or learn-more URL.Listed apps require OAuth, a complete start guide and listing, accurate installation links, partner information, and Intercom review.Official Intercom App Store listing documentation checked 2026-08-07Open Intercom App Store submit page (new tab)Intercom App Store details
14084Internet.nl Hall of Fame60Link type unknowninternet.nlOther opportunitiesFreeModerateHighNot submittedRun the website and email tests, fix IPv6, DNSSEC, HTTPS, security headers, DMARC/DKIM/SPF, STARTTLS/DANE, and RPKI gaps, then retain a 100% score.The domain is listed only when it scores 100% in the relevant test; the badge may be used only for the matching domain and only while the score remains 100%.2026-08-03Open Internet.nl Hall of Fame submit page (new tab)Internet.nl Hall of Fame details
14184Joomla Extensions Directory85Sometimes dofollowextensions.joomla.orgMarketplaces and app storesFreeModerateHighVerified liveBuild a genuine Joomla extension, create a developer profile and submit a complete listing with the official project website.Author-only submissions; GPL-compatible licensing, update server, installability, working links and review are required.Official JED submission docs checked 2026-07-30Open Joomla Extensions Directory submit page (new tab)Joomla Extensions Directory details
14284Jotform Widget Marketplace90Nofollowjotform.comMarketplaces and app storesFreeModerateHighVerified liveBuild and host a useful Jotform widget, register it with full documentation and send it for approval.Widget must be functional, secure, mobile-friendly and compliant with Jotform review and data rules.Official Jotform widget portal checked 2026-07-30Open Jotform Widget Marketplace submit page (new tab)Jotform Widget Marketplace details
14384JS.ORG70Dofollowjs.orgOther opportunitiesFreeModerateHighVerified liveCreate a genuine JavaScript SDK or demo on GitHub Pages and request an appropriate js.org subdomain that links to its official your tool documentation.The project must be JavaScript-related and useful; spam, phishing and dubious content are prohibited, and a pull-request review is required.2026-08-03Open JS.ORG submit page (new tab)JS.ORG details
14484JSFiddle85Nofollowjsfiddle.netDesign galleriesFreeModerateHighVerified livePublish a small standalone your tool privacy or accessibility demo with explanatory comments and a stable share URL.Use original client-side demo code and never include secrets, personal data, trackers, or a promotion-only empty fiddle.Official JSFiddle getting-started documentation checked 2026-08-07Open JSFiddle submit page (new tab)JSFiddle details
14584Kaggle90Nofollowkaggle.comCommunities and forumsFreeModerateHighLive, conditionalPublish a clean your tool benchmark or open dataset plus a reproducible notebook, with proper licensing and the canonical project URL in the data card.Only publish useful non-sensitive data/code; remove secrets and PII, document methodology, choose a valid license, and avoid promotional-only datasets.https://www.kaggle.com/datasetsOpen Kaggle submit page (new tab)Kaggle details
14684Kestra Plugins55Link type unknownkestra.ioMarketplaces and app storesFreeModerateHighVerified liveImplement Java tasks or triggers for submitting your tool audits and fetching structured results, complete with typed properties, examples, tests and generated documentation.Follow current Java/Gradle conventions, internal HTTP client guidance, icons/metadata and unit/flow tests; annotations generate UI and website documentation.2026-08-05Open Kestra Plugins submit page (new tab)Kestra Plugins details
14784LangChain Integrations75Link type unknownlangchain.comMarketplaces and app storesFreeModerateHighVerified liveBuild a standalone your tool integration package with tests and submit the required LangChain documentation PR.Must fit an accepted integration type, pass standard tests, be published as a package, and complete code plus docs review.2026-08-05Open LangChain Integrations submit page (new tab)LangChain Integrations details
14884Langflow Component Bundles50Link type unknownlangflow.orgOther opportunitiesFreeModerateHighVerified liveContribute an your tool provider bundle with useful privacy or security components and provider documentation links.Requires production-quality backend components, frontend assets, tests and a reviewed Langflow pull request; generic promotion is rejected.2026-08-05Open Langflow Component Bundles submit page (new tab)Langflow Component Bundles details
14984Launch Llama—Link type unknownlaunchllama.coLaunch platformsFreeModerateHighVerified liveCreate an account and submit the live your tool product with polished copy, visuals and an accurate category.Every submission is reviewed and newsletter selection is not guaranteed; official pages give different review estimates, so allow at least seven days and never manipulate votes.2026-08-03 • https://launchllama.co/showcase-your-product-freeOpen Launch Llama submit page (new tab)Launch Llama details
15084Layers40Nofollowlayers.toDesign galleriesFreeModerateHighVerified liveJoin as the real your tool designer and share polished, original interface explorations or accessibility improvements with useful design context and a profile website link.Layers is for designers showcasing their own work; its terms prohibit spam and misleading content and permit moderation. Use a real identity, credit assets, and disclose the AltFTool relationship. Profiles/posts and external links are UGC, so indexing and followed-link status are not guaranteed.2026-08-03Open Layers submit page (new tab)Layers details
15184Leaflet—Link type unknownleaflet.pubPublishing platformsFreeModerateHighVerified liveCreate an your tool publication and write original tutorials or research with contextual links to relevant tools.Unlimited free posts are supported; publish reader-first content, not thin promotional pages.2026-08-04Open Leaflet submit page (new tab)Leaflet details
15284LinuxLinks60Dofollowlinuxlinks.comOther opportunitiesFreeModerateHighLive, conditionalSubmit a maintained your tool desktop or CLI utility only after it runs natively on a modern Linux distribution and has a public OSI-approved license and repository.The program must be open source, current, searchable as not already covered, buildable on modern Linux, and accompanied by its repository, license, website, and factual feature summary.2026-08-03Open LinuxLinks submit page (new tab)LinuxLinks details
15384ListChallenges55Nofollowlistchallenges.comProfiles and entitiesFreeModerateHighVerified liveCreate a genuine founder profile and share a useful build story or tutorial with a relevant link.Follow community self-promotion rules; contribute before linking; no repetitive posts. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/listchallengesOpen ListChallenges submit page (new tab)ListChallenges details
15484Lobsters65Nofollowlobste.rsProfiles and entitiesFreeModerateHighNeeds checkingCreate a genuine founder profile and share a useful build story or tutorial with a relevant link.Follow community self-promotion rules; contribute before linking; no repetitive posts. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/lobstersOpen Lobsters submit page (new tab)Lobsters details
15584Local-First Software (LoFi)—Link type unknownlofi.soSoftware directoriesFreeModerateHighLive, conditionalPropose eligible your tool client-side or offline-first tools to the public directory with accurate site and source links.The product must genuinely keep user data local and meet the directory's local-first scope; submit a human-reviewed PR.2026-08-05Open Local-First Software (LoFi) submit page (new tab)Local-First Software (LoFi) details
15684MacPorts70Link type unknownports.macports.orgDeveloper registriesFreeModerateHighVerified liveCreate and test a Portfile for an open-source your tool CLI or desktop app, including its canonical homepage.Run lint and local builds, then submit a pull request or a MacPorts Trac submission ticket for review.Official MacPorts guide checked 2026-07-30Open MacPorts submit page (new tab)MacPorts details
15784Maven70Link type unknownmaven.comOther opportunitiesFreeModerateHighVerified liveBuild and teach a live, project-based cohort on creating local-first privacy tools or accessible web utilities, supported by a substantive public syllabus and real instructor profile.The official accelerator targets professional development for mid-career business or tech learners and requires a Stripe Connect-supported country. Marketplace discovery follows traction; the instructor must deliver the promised live teaching and projects.2026-08-03Open Maven submit page (new tab)Maven details
15884Maven Central70Link type unknowncentral.sonatype.comDeveloper registriesFreeModerateHighVerified liveRelease a useful Java or Kotlin SDK and include the project homepage, source control, license and developer metadata in the POM.Requires namespace verification, signed artifacts and complete POM metadata; releases are permanent.Official Sonatype Central docs checked 2026-07-30Open Maven Central submit page (new tab)Maven Central details
15984MELPA55Link type unknownmelpa.orgDeveloper registriesFreeModerateHighVerified liveCreate a useful Emacs client for a public your tool API, host its source openly and submit a MELPA recipe pull request.Package source must be public, installable and maintained; recipe and naming rules are reviewed by maintainers.2026-08-03Open MELPA submit page (new tab)MELPA details
16084Mendeley Data90Nofollowmendeley.comPublishing platformsFreeModerateHighVerified livePublish an original, human-verified privacy or accessibility benchmark with complete methodology, provenance, schema, license, and a relevant project citation.Intended for research data, not promotion. Do not upload personal/confidential data or AI-generated datasets; published versions receive a DOI and generally require a new version or support request for later changes/removal.2026-08-03Open Mendeley Data submit page (new tab)Mendeley Data details
16184Million Dot Homepage20Link type unknownmilliondothomepage.comLaunch platformsFreeModerateHighNeeds checkingLaunch 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/million-dot-homepageOpen Million Dot Homepage submit page (new tab)Million Dot Homepage details
16284Minimal Gallery50Dofollowminimal.gallerySoftware directoriesFreeModerateHighNot submittedSubmit your tool as a polished tool website with its strongest public page and a concise explanation of the design system.Manual curation normally takes one to two weeks and is highly selective; the site must be public, original, lawful, and visually polished.2026-08-03Open Minimal Gallery submit page (new tab)Minimal Gallery details
16384Mixcloud90Nofollowmixcloud.comOther opportunitiesFreeModerateHighLive, conditionalUpload an original your tool audio explainer and place relevant resource links naturally in the show description.Owned or licensed genuine audio only; no synthetic link-only upload, and basic-tier limits apply.2026-08-04Open Mixcloud submit page (new tab)Mixcloud details
16484MoodleNet65Link type unknownmoodle.netOther opportunitiesFreeModerateHighVerified liveShare an openly licensed your tool digital-safety lesson pack or Moodle activity and curate it into an educator-focused collection.Authentication and publication approval apply; content must be genuine OER with accurate licensing, not a promotional link drop.2026-08-05 — https://moodle.com/news/moodlenet-share-curate-open-educational-resources/Open MoodleNet submit page (new tab)MoodleNet details
16584My Launch Stash—Link type unknownmylaunchstash.comLaunch platformsFreeModerateHighNeeds checkingLaunch 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/my-launch-stashOpen My Launch Stash submit page (new tab)My Launch Stash details
16684Nagios Exchange60Link type unknownexchange.nagios.orgMarketplaces and app storesFreeModerateHighVerified liveCreate a working Nagios check or addon for an your tool API/privacy-health signal, register, and submit the project with source and website links.Attach real plugin files and accurate compatibility/license details; every submission enters review before appearing publicly.2026-08-05 — https://exchange.nagios.org/about/Open Nagios Exchange submit page (new tab)Nagios Exchange details
16784Netlify Extensions Directory90Link type unknownnetlify.comMarketplaces and app storesFreeModerateHighVerified liveBuild and test a Netlify extension, publish it publicly, then submit it for review and directory listing.Public listed extensions are reviewed; provide accurate in-app documentation, support and secure implementation.Official Netlify SDK publishing docs checked 2026-07-30Open Netlify Extensions Directory submit page (new tab)Netlify Extensions Directory details
16884New Relic Instant Observability90Link type unknownnewrelic.comOther opportunitiesFreeModerateHighLive, conditionalCreate a useful quickstart for monitoring a real your tool deployment, with instrumentation instructions, a working data source, dashboards, alerts, documentation, and a GitHub contribution.Telemetry must actually reach New Relic and the quickstart must help users monitor a real use case. Follow catalog schema, asset, testing, GitHub review, and maintenance requirements; do not submit a brand-only listing.2026-08-03Open New Relic Instant Observability submit page (new tab)New Relic Instant Observability details
16984Nextcloud App Store80Link type unknownnextcloud.comMarketplaces and app storesFreeModerateHighNot submittedBuild a signed Nextcloud app for local document sanitization or privacy checks, publish releases, and maintain App Store compatibility.Must follow App Store, signing, security, privacy, and license rules; approval and outbound-link presentation remain under store moderation.2026-08-03Open Nextcloud App Store submit page (new tab)Nextcloud App Store details
17084Nixpkgs75Link type unknownsearch.nixos.orgDeveloper registriesFreeModerateHighVerified liveAdd and test a Nix expression for a genuine your tool release with description, homepage, license and maintainer metadata.Must satisfy Nixpkgs contribution, licensing, reproducibility, review and supported-platform rules.Official Nixpkgs 26.05 manual checked 2026-07-30Open Nixpkgs submit page (new tab)Nixpkgs details
17184npm95Nofollownpmjs.comDeveloper registriesFreeModerateHighNot submittedPublish @your tool/embed or utility package with homepage.Only after package exists; keep license clean.2026-07-30Open npm submit page (new tab)npm details
17284ODI Open Data Certificates55Link type unknowncertificates.theodi.orgOther opportunitiesFreeModerateHighVerified livePublish a machine-readable privacy, accessibility, or scam-pattern dataset or API and complete its evidence-based public certificate.Applies to an actual open dataset, not the product alone; it must be accessible, licensed, documented, maintained, and accurately described.2026-08-05 — https://certificates.theodi.org/Open ODI Open Data Certificates submit page (new tab)ODI Open Data Certificates details
17384ODIPA Community Privacy Tools—Link type unknownodipa.orgSoftware directoriesFreeModerateHighLive, conditionalSubmit a mature your tool privacy component for technical and security review.Open-source privacy tool only; dependency scan, manual review and board approval apply.2026-08-05Open ODIPA Community Privacy Tools submit page (new tab)ODIPA Community Privacy Tools details
17484Ollama Model Library75Link type unknownollama.comDeveloper registriesFreeModerateHighVerified livePublish a small local-first your tool classifier for privacy, secret detection, or defensive content analysis.Verify base-model redistribution rights, publish a clear licence, document limitations, and exclude private training data.Official Ollama model sharing documentation checked 2026-08-07Open Ollama Model Library submit page (new tab)Ollama Model Library details
17584OMR Reviews70Link type unknownomr.comSoftware directoriesFreeModerateHighVerified liveSuggest your tool and complete its B2B software profile.Must fit a supported B2B software category; OMR reviews the suggestion.https://omr.com/en/reviews/b2b/list-softwareOpen OMR Reviews submit page (new tab)OMR Reviews details
17684OPA Ecosystem60Link type unknownopenpolicyagent.orgOther opportunitiesFreeModerateHighVerified liveBuild a functional OPA/Rego privacy-policy integration or developer tool, document it, then add its ecosystem entry and logo through the official docs repository.Must be a real OPA-related project or integration; create the required ecosystem markdown and icon, keep claims factual, and pass review.Official OPA contributing and ecosystem-listing instructions checked 2026-08-05Open OPA Ecosystem submit page (new tab)OPA Ecosystem details
17784Open Collective85Nofollowopencollective.comProfiles and entitiesFreeModerateHighLive, conditionalCreate a genuine your tool collective, complete its public profile, and add the official website plus repository/social links.Use only for a real community or open-source project; keep team, purpose and financial details accurate.2026-08-05Open Open Collective submit page (new tab)Open Collective details
17884Open Textbook Library85Link type unknownopen.umn.eduOther opportunitiesFreeModerateHighVerified liveSubmit a complete, openly licensed privacy/digital-safety textbook already used in higher education.Complete semester-length text; no CC-ND; must be used at multiple higher-ed institutions or backed by a higher-ed, scholarly or professional body.2026-08-05 — https://open.umn.edu/opentextbooks/textbooks/submitOpen Open Textbook Library submit page (new tab)Open Textbook Library details
17984OpenFuture AI40Link type unknownopenfuture.aiAI tool directoriesFreeModerateHighVerified liveCreate an account and submit your tool or its qualifying AI tools.Login required; tool must be live and accurately categorized.https://openfuture.ai/submit-toolOpen OpenFuture AI submit page (new tab)OpenFuture AI details
18084OpenLearn Create90Link type unknownopen.eduOther opportunitiesFreeModerateHighVerified livePublish a free mini-course on privacy, redaction, scam detection, or accessibility with genuine your tool exercises in the curriculum.Publication is checked; clear all rights, meet accessibility requirements, use appropriate licensing, and avoid direct marketing.2026-08-05 — https://www.open.edu/openlearncreate/local/ocwcreatecourse/gettingstarted.phpOpen OpenLearn Create submit page (new tab)OpenLearn Create details
18184OpenML60Link type unknownopenml.orgPublishing platformsFreeModerateHighVerified livePublish a documented, de-identified ML-ready benchmark such as labelled phishing, homograph, or accessibility test cases with provenance and an open license.The upload must be a legitimate machine-learning dataset, include name, description, and license, contain no sensitive data, and pass OpenML's automated verification before activation.2026-08-03Open OpenML submit page (new tab)OpenML details
18284OpenSourceFest—Link type unknownopensourcefest.orgDeveloper registriesFreeModerateHighLive, conditionalSubmit a maintained your tool open-source project through Submit a Project.Editors review license, activity and quality; proprietary web-only tools do not qualify.2026-08-05Open OpenSourceFest submit page (new tab)OpenSourceFest details
18384OpenSSF Scorecard40Link type unknownscorecard.devDeveloper registriesFreeModerateHighLive, conditionalRun Scorecard on a public your tool component, enable published results, remediate checks, and link the public viewer from repository documentation.Public repository and admin rights are required; scores are heuristic and website exposure is indirect through accurate repository metadata.2026-08-05 official Scorecard site and OpenSSF repositoryOpen OpenSSF Scorecard submit page (new tab)OpenSSF Scorecard details
18484openSUSE Build Service70Link type unknownbuild.opensuse.orgDeveloper registriesFreeModerateHighVerified liveCreate a public OBS project and package that builds your tool for supported Linux distributions with upstream links.Requires valid build recipes, licenses and maintained packages; project pages are for software distribution, not promotion alone.Official OBS user guide and live service checked 2026-07-30Open openSUSE Build Service submit page (new tab)openSUSE Build Service details
18584Openwall oss-security75Link type unknownopenwall.comSoftware directoriesFreeModerateHighLive, conditionalPost only a self-contained initial announcement of a substantial open-source defensive tool, a major update, or a properly coordinated OSS vulnerability disclosure.The list is for OSS security, not promotion. Tool posts should be rare, technically detailed, and especially useful for improving other open-source software; minor updates and cross-posting are discouraged.2026-08-03Open Openwall oss-security submit page (new tab)Openwall oss-security details
18684Payhip75Link type unknownpayhip.comOther opportunitiesFreeModerateHighVerified livePublish a genuinely useful free privacy checklist, redaction template, or safety workbook that complements your tool and has standalone value.The resource must be substantive and rights-cleared; disclose AltFTool links and avoid a one-page promotional download.Official Payhip pricing and publishing path checked 2026-08-07Open Payhip submit page (new tab)Payhip details
18784PeerSpot70Link type unknownpeerspot.comSoftware directoriesFreeModerateHighLive, conditionalContact PeerSpot with your tool enterprise use cases and real-customer evidence to request inclusion.PeerSpot says listings are not pay-to-play, but the product must be enterprise-class and have real customers; never manufacture reviews.2026-08-03Open PeerSpot submit page (new tab)PeerSpot details
18884Podcast Addict70Link type unknownpodcastaddict.comOther opportunitiesFreeModerateHighLive, conditionalSubmit a valid public your tool podcast feed and keep website and episode-link metadata accurate.Feed must contain playable genuine episodes; directory review may take time.2026-08-04Open Podcast Addict submit page (new tab)Podcast Addict details
18984Podchaser75Nofollowpodchaser.comProfiles and entitiesFreeModerateHighLive, conditionalClaim a genuine your tool show, verify ownership, and complete its official website and creator details.Ownership verification by feed email or token is required; never create a fake podcast for links.2026-08-04Open Podchaser submit page (new tab)Podchaser details
19084Privacy Guides70Link type unknownprivacyguides.orgSoftware directoriesFreeModerateHighNot submittedSubmit one mature privacy tool, disclose ownership, publish its exact threat model and limitations, and engage transparently with the community review.Developers must disclose affiliation and explain the privacy advantage and threat model; sensitive-data tools need a security white paper and audit status. Open source, active development, usability, cross-platform support, and strong documentation are preferred.2026-08-03Open Privacy Guides submit page (new tab)Privacy Guides details
19184ProductWing—Link type unknownproductwing.comLaunch platformsFreeModerateHighNeeds checkingLaunch 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/productwingOpen ProductWing submit page (new tab)ProductWing details
19284protocols.io75Link type unknownprotocols.ioDeveloper registriesFreeModerateHighLive, conditionalPublish a reproducible your tool testing, privacy-analysis or accessibility-evaluation method and cite relevant project resources.Submissions must contribute genuine experimental or computational research methods; non-scientific promotion may be removed.2026-08-04Open protocols.io submit page (new tab)protocols.io details
19384QGIS Official Plugin Repository80Link type unknownqgis.orgMarketplaces and app storesFreeModerateHighVerified liveBuild a QGIS plugin that checks selected layers or exports for sensitive coordinates and metadata, then creates a safer copy.An OSGeo account, valid package and metadata, unique name, usable documentation, and staff approval are required.Official QGIS plugin release documentation checked 2026-08-07Open QGIS Official Plugin Repository submit page (new tab)QGIS Official Plugin Repository details
19484Quarto Extensions65Link type unknownquarto.orgMarketplaces and app storesFreeModerateHighVerified liveCreate a public Quarto extension for privacy, accessibility, or document checks with documentation, examples, and a license, then propose it for listing.Must be a working extension; inclusion is manually curated and promotional links alone are insufficient.Official Quarto extension and listing documentation checked 2026-08-05Open Quarto Extensions submit page (new tab)Quarto Extensions details
19584Railway Templates70Link type unknownrailway.comMarketplaces and app storesFreeModerateHighLive, conditionalPublish a maintained your tool open-source service template with safe variables, health checks, documentation and a demo.Must be a reusable deployable template; never include secrets and provide active maintenance.2026-08-04Open Railway Templates submit page (new tab)Railway Templates details
19684Raindrop.io Public Pages70Nofollowraindrop.ioPublishing platformsFreeModerateHighVerified livePublish a carefully annotated collection of trustworthy privacy, accessibility, and safety resources, including only your tool pages that genuinely fit each section.Email verification is required and each collection must be explicitly made public; official help says public pages may be indexed. Avoid self-only or mass-imported link collections, add independent sources and honest notes, and disclose AltFTool ownership. Pages are self-published UGC with no ranking or followed-link guarantee.2026-08-03Open Raindrop.io Public Pages submit page (new tab)Raindrop.io Public Pages details
19784Redmine Plugin Directory75Link type unknownredmine.orgMarketplaces and app storesFreeModerateHighNot submittedBuild a maintained Redmine plugin that creates privacy or security audit tasks, document supported versions, then register it under an authenticated developer account.Only register a functioning plugin you maintain, with accurate compatibility and support details; moderation and link treatment are not guaranteed.2026-08-03Open Redmine Plugin Directory submit page (new tab)Redmine Plugin Directory details
19884REUSE API50Link type unknownreuse.softwareOther opportunitiesFreeModerateHighLive, conditionalMake a real public your tool repository REUSE-compliant, register its Git URL, and link the resulting compliance page from project docs.Public maintained repository only; main branch is checked and email confirmation is required; fix findings rather than using a decorative badge.2026-08-05 official REUSE API and register pagesOpen REUSE API submit page (new tab)REUSE API details
19984RubyGems.org80Nofollowrubygems.orgDeveloper registriesFreeModerateHighVerified livePackage a legitimate your tool Ruby client or utility and add homepage and source metadata before pushing the gem.Use a unique gem name, valid gemspec and maintained code; never publish a placeholder package.Official RubyGems guide checked 2026-07-30Open RubyGems.org submit page (new tab)RubyGems.org details
20084Runtipi App Store35Link type unknownruntipi.ioMarketplaces and app storesFreeModerateHighVerified liveCreate and locally test an your tool Runtipi app with config, Compose metadata, safe secrets, screenshots, documentation, backups, and update behavior, then submit it.Must follow current app schema, support stated architectures, avoid latest image tags, pass validation, and remain maintained.Official Runtipi app creation and default-store documentation checked 2026-08-05Open Runtipi App Store submit page (new tab)Runtipi App Store details

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.