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
All filters2
Highest impactimpact 100
- SubmitACT Rules Community (opens in a new tab)
ACT Rules Community
act-rules.github.ioImplement applicable ACT Rules, execute official test cases, publish the implementation report, join ACT-R CG, and propose your tool as an implementation.
Estimated domain authority DA ~45DofollowFreeQuickVerified liveAccessibility - SubmitAlternativeTo (opens in a new tab)
AlternativeTo
alternativeto.netCreate account, wait cooldown if new, submit your tool as platform alternative.
Estimated domain authority DA ~80NofollowFreeQuickNot submittedStartup directory - SubmitCB Insights (opens in a new tab)
CB Insights
cbinsights.comRequest an Analyst Briefing and complete the company survey with product, customer, growth, funding, and market evidence.
Estimated domain authority DA ~90NofollowFreeQuickNot submittedTechnology market-intelligence database - SubmitContent Authenticity Initiative (opens in a new tab)
Content Authenticity Initiative
contentauthenticity.orgApply as a company and accurately describe your tool C2PA or content-provenance tools and intended participation.
Estimated domain authority DA ~60FreeQuickVerified liveContent Authenticity - SubmitCSA STAR Registry (opens in a new tab)
CSA STAR Registry
cloudsecurityalliance.orgComplete the current CAIQ or AI-CAIQ truthfully and submit your tool real cloud service to the STAR Registry.
Estimated domain authority DA ~80Sometimes dofollowFreeQuickLive, conditionalCloud Security - SubmitCycloneDX Tool Center (opens in a new tab)
CycloneDX Tool Center
cyclonedx.orgAdd standards-valid CycloneDX support, then submit your structured entry through the official contribution workflow.
Estimated domain authority DA ~55FreeQuickVerified liveSBOM Ecosystem - SubmitFreeNoSignup (opens in a new tab)
FreeNoSignup
freenosignup.comSubmit one or more free your tool utilities that work without registration.
FreeQuickVerified liveNo-Signup Tool Directory - SubmitGlama MCP Directory (opens in a new tab)
Glama MCP Directory
glama.aiDeploy your maintained MCP server from GitHub, Docker, npm, or PyPI, verify maintainer ownership, and switch it public only after production testing.
Estimated domain authority DA ~50FreeQuickNot submittedMCP Ecosystem - SubmitMERLOT (opens in a new tab)
MERLOT
merlot.orgPublish 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.
Estimated domain authority DA ~70FreeQuickVerified liveOpen Education - SubmitOpenSSF Best Practices Badge (opens in a new tab)
OpenSSF Best Practices Badge
bestpractices.devOpen-source your well-scoped component, document its governance, tests, security process, and complete the passing-badge self-assessment.
Estimated domain authority DA ~60FreeQuickLive, conditionalOpen-Source Security - SubmitPostman (opens in a new tab)
Postman
postman.comCreate your public workspace with sanitized API collections, examples, documentation, and a canonical homepage link on the publisher profile.
Estimated domain authority DA ~90NofollowFreeQuickLive, conditionalAPI Collaboration Network - SubmitProduct Hunt (opens in a new tab)
Product Hunt
producthunt.comLaunch your platform first; prepare maker comment and assets.
Estimated domain authority DA ~90NofollowFreeQuickNot submittedLaunch platform - SubmitRapidAPI Hub (opens in a new tab)
RapidAPI Hub
rapidapi.comList your stable API with OpenAPI definitions, clear endpoints, health checks and its official website in the permitted listing field.
Estimated domain authority DA ~80FreeQuickVerified liveAPI marketplace - SubmitSaaSHub (opens in a new tab)
SaaSHub
saashub.comSubmit platform, add competitor alternatives, verify domain email.
Estimated domain authority DA ~70DofollowFreeQuickNot submittedStartup directory - SubmitSAYUJ by STPI (opens in a new tab)
SAYUJ by STPI
sayuj.netRegister your tool as an Indian startup, complete its offering profile, and use Product Expo or Startup Connect when relevant.
FreeQuickVerified liveGovernment Startup Network - SubmitSmithery MCP Registry (opens in a new tab)
Smithery MCP Registry
smithery.aiPublish a genuine hosted, external, or stdio MCP server exposing a small set of consent-based your tool utilities with complete metadata and documentation.
Estimated domain authority DA ~50FreeQuickNot submittedMCP Ecosystem - SubmitStartupTN (opens in a new tab)
StartupTN
startuptn.inUse the official Register flow and build your verified company profile if Tamil Nadu startup rules are met.
Estimated domain authority DA ~35FreeQuickLive, conditionalState Startup Registry - SubmitTracxn (opens in a new tab)
Tracxn
tracxn.comSubmit the company website and concise product, market, founder, funding, and traction details for analyst review.
Estimated domain authority DA ~75NofollowFreeQuickNot submittedStartup intelligence database
High impactimpact 86
- SubmitActivepieces Community Pieces (opens in a new tab)
Activepieces Community Pieces
activepieces.comBuild and test your useful piece with real actions, publish the package under a unique organization scope, and maintain version compatibility.
Estimated domain authority DA ~50FreeQuickNot submittedAutomation Ecosystem - SubmitAlfred Gallery (opens in a new tab)
Alfred Gallery
alfred.appBuild 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.
Estimated domain authority DA ~50FreeQuickVerified liveProductivity Workflow Gallery - SubmitAnkiWeb Add-ons (opens in a new tab)
AnkiWeb Add-ons
ankiweb.netBuild a useful Anki privacy, study-safety, or accessibility add-on, package it as .ankiaddon, and upload it through AnkiWeb.
Estimated domain authority DA ~65FreeQuickVerified liveProductivity Extensions - SubmitAnsible Galaxy (opens in a new tab)
Ansible Galaxy
ansible.comCreate a tested Ansible collection for supported your tool deployment or audit automation, complete galaxy.yml, version it, and publish with a Galaxy token.
Estimated domain authority DA ~80NofollowFreeQuickNot submittedInfrastructure Ecosystem - SubmitApache Airflow Ecosystem (opens in a new tab)
Apache Airflow Ecosystem
airflow.apache.orgCreate your real Airflow provider with hooks/operators and documentation metadata, publish it, then add it to Airflow’s Ecosystem page by PR.
Estimated domain authority DA ~90NofollowFreeQuickVerified liveWorkflow Orchestration - SubmitAPIList.fun (opens in a new tab)
APIList.fun
apilist.funRecommend your official API with its documentation URL, concise Markdown description, category, and technical details.
Estimated domain authority DA ~45FreeQuickLive, conditionalAPI Directory - SubmitAPIs.guru OpenAPI Directory (opens in a new tab)
APIs.guru OpenAPI Directory
apis.guruWhen 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.
Estimated domain authority DA ~50FreeQuickLive, conditionalAPI Directory - SubmitAppDirectory.org (opens in a new tab)
AppDirectory.org
appdirectory.orgSubmit your tool once with its strongest free-use case, correct category, concise copy, and product URL.
FreeQuickLive, conditionalFree web-app directory - SubmitAwesome-Selfhosted (opens in a new tab)
Awesome-Selfhosted
awesome-selfhosted.netSubmit your mature self-hosted edition using the required YAML entry and canonical website/source links.
Estimated domain authority DA ~40FreeQuickLive, conditionalOpen-Source Directory - SubmitBuildkite Plugins Directory (opens in a new tab)
Buildkite Plugins Directory
buildkite.comBuild a pipeline plugin that runs your tool checks on selected artifacts and posts configurable pass, warn, or fail annotations.
Estimated domain authority DA ~70FreeQuickVerified liveCI/CD - SubmitCapterra (opens in a new tab)
Capterra
capterra.comList product under software categories.
Estimated domain authority DA ~90NofollowFreeQuickNot submittedSoftware review - SubmitCodeNewbie Community (opens in a new tab)
CodeNewbie Community
codenewbie.orgCreate 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.
Estimated domain authority DA ~60NofollowFreeQuickNot submittedDeveloper Community - SubmitCodePen (opens in a new tab)
CodePen
codepen.ioBuild an original interactive demo of your utility, document the use case in Pen Details, and add your tool as one of the public profile links.
Estimated domain authority DA ~90NofollowFreeQuickVerified liveFrontend Developer Community - SubmitCodeSandbox (opens in a new tab)
CodeSandbox
codesandbox.ioPublish a small open demo that explains one your tool algorithm or UI pattern and add the product website to the founder profile links.
Estimated domain authority DA ~90NofollowFreeQuickNot submittedDeveloper Community - SubmitCoFoundersLab (opens in a new tab)
CoFoundersLab
cofounderslab.comCreate a complete founder and startup profile for your tool and participate in relevant founder discussions or connection requests.
Estimated domain authority DA ~65NofollowFreeQuickVerified liveFounder and Creator Community - SubmitCybil Knowledge Portal (opens in a new tab)
Cybil Knowledge Portal
cybilportal.orgSubmit a genuine international cyber-capacity-building project, tool, publication or webinar with evidence and a live resource URL.
Estimated domain authority DA ~40FreeQuickVerified liveCyber Capacity Building - Submitdaily.dev (opens in a new tab)
daily.dev
daily.devComplete the founder's developer profile, add your tool as real project experience, and publish useful privacy or security engineering posts with contextual links.
Estimated domain authority DA ~75NofollowFreeQuickNot submittedDeveloper Community - SubmitDatoCMS Plugin Marketplace (opens in a new tab)
DatoCMS Plugin Marketplace
datocms.comBuild your privacy or security field plugin, publish the npm package, and use your tool as its homepage and support site.
Estimated domain authority DA ~65FreeQuickVerified liveCMS Plugin Marketplace - SubmitDirectus Marketplace (opens in a new tab)
Directus Marketplace
directus.comPublish your genuine Directus extension to npm and complete author, documentation, support, and website metadata.
Estimated domain authority DA ~65FreeQuickVerified liveCMS Plugin Marketplace - SubmitDokuWiki Plugins (opens in a new tab)
DokuWiki Plugins
dokuwiki.orgBuild a DokuWiki privacy, redaction, accessibility, or secure-export plugin, publish its code and create the canonical plugin page used by the extension directory.
Estimated domain authority DA ~70NofollowFreeQuickVerified liveWiki Extensions - SubmitEclipse Marketplace (opens in a new tab)
Eclipse Marketplace
eclipse.orgPublish a functional Eclipse plugin for your developer use case, then create a complete marketplace listing with official support and source links.
Estimated domain authority DA ~90NofollowFreeQuickVerified livePlugin marketplace - SubmitFOSSRadar (opens in a new tab)
FOSSRadar
fossradar.devAfter open-sourcing a maintained component, submit the TOML project file and website through GitHub PR.
FreeQuickVerified liveOpen-Source Directory
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.
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.
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.
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.
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 viewAn 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
One-shot launches where timing and preparation decide the outcome.
Publications that accept contributed articles. Slow and editorial, but the links are earned.
Fast-growing listings specifically for AI-powered tools.
Extension, plugin and integration stores. Real review processes, real distribution.
Startup listings, beta lists and founder media.
General tool and software catalogues with real search traffic.
B2B review sites. Slow to approve, strong once live.
Package, image and docs hosting that carries real authority.
Showcases judged on craft. A good screenshot matters more than copy.
Write once, link back. Editorial standards vary widely.
Get quoted or distribute a release. Slower, higher ceiling.
Company and local listings. Unglamorous, consistently indexed.
Owned pages you control: company, founder, knowledge-panel entities.
Answer real questions. Never drop a bare link.
Brand surface and referral traffic more than link equity.
Everything that does not fit the buckets above.