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
Usefulimpact 68
- SubmitLiberapay (opens in a new tab)
Liberapay
liberapay.comCreate your project team, connect verified project accounts, and describe the official website and repository contextually.
Estimated domain authority DA ~65NofollowFreeQuickLive, conditionalOpen-Source Funding & Profile - SubmitLineZine (opens in a new tab)
LineZine
linezine.comChoose the free listing or purchase your dedicated product page.
Estimated domain authority DA ~20FreeQuickVerified liveTool Directory - SubmitLuaRocks (opens in a new tab)
LuaRocks
luarocks.orgCreate a useful Lua client or helper, publish its rockspec and include homepage, license and source links.
Estimated domain authority DA ~55FreeQuickVerified livePackage Registry - SubmitManta (opens in a new tab)
Manta
manta.comClaim or add your legal business, complete its description and logo, and include the verified website link.
Estimated domain authority DA ~85NofollowFreeQuickNeeds checkingBusiness Listing - SubmitMastra Templates and Integrations (opens in a new tab)
Mastra Templates and Integrations
mastra.aiCreate your working public integration or reusable Mastra template with repository and documentation for review and cross-listing.
Estimated domain authority DA ~50FreeQuickVerified liveAI Agent Ecosystems - SubmitMCP Market (opens in a new tab)
MCP Market
mcpmarket.comSubmit your MCP server with its repository, install steps and description.
Estimated domain authority DA ~40Sometimes dofollowFreeQuickNeeds checkingMCP server directory - Submitn8n Community (opens in a new tab)
n8n Community
n8n.ioPublish useful n8n workflow linking your tool resources.
Estimated domain authority DA ~75FreeQuickNeeds checkingWorkflow community - Submitnapari Hub (opens in a new tab)
napari Hub
napari-hub.orgCreate a useful npe2 napari plugin for image privacy, metadata inspection or scientific redaction, publish it correctly on PyPI and let the official hub index its project metadata.
Estimated domain authority DA ~40FreeQuickVerified liveScientific Plugin Ecosystem - SubmitNextBigWhat (opens in a new tab)
NextBigWhat
nextbigwhat.comPitch your tool as an India-built free tools product.
FreeQuickNeeds checkingStartup directory - SubmitNxGN Tools (opens in a new tab)
NxGN Tools
nxgntools.comSubmit the AI prompt tools with screenshots.
FreeQuickNeeds checkingAI directory - SubmitOpenTofu Public Registry (opens in a new tab)
OpenTofu Public Registry
registry.opentofu.orgRelease your reusable -related security or privacy module from a correctly named public GitHub repository.
Estimated domain authority DA ~50FreeQuickLive, conditionalInfrastructure Registry - SubmitORCID (opens in a new tab)
ORCID
orcid.orgIf the founder contributes to research or innovation, create an ORCID record and add your tool under public website and relevant work links.
Estimated domain authority DA ~90NofollowFreeQuickNeeds checkingProfessional Profile - SubmitOwler (opens in a new tab)
Owler
owler.comSign up, find or add your company and claim the profile to edit the description and website.
Estimated domain authority DA ~70NofollowFreeQuickNeeds checkingCompany profile database - SubmitOwwly (opens in a new tab)
Owwly
owwly.comCreate a product page with visuals and a clear tagline, then share it so people upvote.
Estimated domain authority DA ~45Sometimes dofollowFreeQuickNeeds checkingProduct discovery - SubmitParticipedia (opens in a new tab)
Participedia
participedia.netDocument a real participatory public-decision deployment as a Case, Method or Organization entry with evaluations and project URL.
Estimated domain authority DA ~50FreeQuickVerified liveCivic Participation - SubmitPatreon (opens in a new tab)
Patreon
patreon.comCreate your truthful /founder profile or content page and add the website link where allowed.
Estimated domain authority DA ~95NofollowFreeQuickNeeds checkingProfile / entity - Submitpckt (opens in a new tab)
pckt
pckt.blogCreate your genuine publication and post substantial product research, tutorials or engineering notes.
FreeQuickVerified liveOpen Social Publishing - SubmitPitchBook (opens in a new tab)
PitchBook
pitchbook.comSearch for your tool; submit an accurate profile update or request research coverage with authoritative company data and website.
Estimated domain authority DA ~85FreeQuickLive, conditionalPrivate-Market Database - SubmitProcessWire Modules Directory (opens in a new tab)
ProcessWire Modules Directory
processwire.comBuild a ProcessWire admin module for external URL, metadata, accessibility or security audits, register as a module author and submit it to the official directory.
Estimated domain authority DA ~65FreeQuickVerified liveCMS Ecosystem - SubmitPublicAPIs.io (opens in a new tab)
PublicAPIs.io
publicapis.ioList your legitimate documented API in the relevant developer category using the normal or Pro review queue.
Estimated domain authority DA ~40FreeQuickLive, conditionalAPI Directory - SubmitRabbitMQ Community Plugins (opens in a new tab)
RabbitMQ Community Plugins
rabbitmq.comBuild a stable open-source RabbitMQ plugin for your legitimate security/privacy workflow and ask the RabbitMQ team to list it.
Estimated domain authority DA ~80FreeQuickVerified liveInfrastructure Integration - SubmitRaycast Store (opens in a new tab)
Raycast Store
raycast.comBuild your tool actions as a Raycast extension and publish through the official GitHub PR workflow.
Estimated domain authority DA ~70FreeQuickLive, conditionalDeveloper Extension Store - SubmitRepoz (opens in a new tab)
Repoz
repoz.ioSubmit your maintained open-source component for community review.
FreeQuickLive, conditionalOpen-Source Directory - SubmitResearch Software Directory (opens in a new tab)
Research Software Directory
research-software-directory.orgRequest access, then publish your rich research-software page with source, getting-started URL, DOI, contributors, and research mentions.
Estimated domain authority DA ~35FreeQuickVerified liveResearch Software Registry - SubmitResearchGate (opens in a new tab)
ResearchGate
researchgate.netAn eligible active researcher can publish genuine your tool studies, code or datasets and add the official website where appropriate.
Estimated domain authority DA ~95NofollowFreeQuickLive, conditionalResearch Network - SubmitRoadie Backstage Plugins Directory (opens in a new tab)
Roadie Backstage Plugins Directory
roadie.ioPublish a substantial open-source Backstage plugin that integrates your tool privacy/security checks, then request inclusion if the directory does not discover it.
Estimated domain authority DA ~50FreeQuickVerified liveDeveloper Ecosystem - SubmitSciCrunch RRID Resource Portal (opens in a new tab)
SciCrunch RRID Resource Portal
scicrunch.orgRegister a stable, genuinely research-used your tool software, service, or database with accurate maintainer and version metadata.
Estimated domain authority DA ~60FreeQuickVerified liveResearch Resources - SubmitScoop (opens in a new tab)
Scoop
scoop.shPublish and maintain a tested Scoop manifest for your actual portable Windows CLI or app.
Estimated domain authority DA ~55FreeQuickLive, conditionalWindows Package Ecosystem - SubmitSilverstripe Add-ons (opens in a new tab)
Silverstripe Add-ons
addons.silverstripe.orgBuild a maintained Silverstripe CMS module for your useful privacy, accessibility or URL-audit workflow, publish it with correct Composer metadata and submit it to the public directory.
Estimated domain authority DA ~60FreeQuickVerified liveCMS Ecosystem - SubmitSketchfab (opens in a new tab)
Sketchfab
sketchfab.comPublish an original educational 3D asset connected to your real tutorial, with accurate credits and a contextual project link in the description.
Estimated domain authority DA ~90NofollowFreeQuickVerified live3D creator community - SubmitSlideShare (opens in a new tab)
SlideShare
slideshare.netCreate your truthful /founder profile or content page and add the website link where allowed.
Estimated domain authority DA ~95NofollowFreeQuickNeeds checkingProfile / entity - SubmitSoftware Advice (opens in a new tab)
Software Advice
softwareadvice.comSubmit B2B software listing.
Estimated domain authority DA ~85NofollowFreeQuickNot submittedSoftware review - SubmitSoftware Heritage (opens in a new tab)
Software Heritage
softwareheritage.orgArchive your genuine public source repository and add its resulting SWHID permalink to release and citation metadata.
Estimated domain authority DA ~65FreeQuickLive, conditionalSoftware Archive - SubmitStack Exchange (opens in a new tab)
Stack Exchange
stackexchange.comBuild a real founder profile and answer narrowly relevant questions, linking to your resource only when it directly substantiates the answer.
Estimated domain authority DA ~90NofollowFreeQuickNot submittedQ&A & Knowledge - SubmitStack Overflow (opens in a new tab)
Stack Overflow
stackoverflow.comCreate your truthful /founder profile or content page and add the website link where allowed.
Estimated domain authority DA ~95NofollowFreeQuickNot submittedProfile / entity - SubmitStackShare (opens in a new tab)
StackShare
stackshare.ioAdd your tool if accepted; create company stack.
Estimated domain authority DA ~75NofollowFreeQuickNeeds checkingStack directory - SubmitStatamic Marketplace (opens in a new tab)
Statamic Marketplace
statamic.comBuild a functional privacy, accessibility or security add-on, publish it on Packagist and create its Marketplace product page.
Estimated domain authority DA ~65FreeQuickLive, conditionalCMS Marketplace - SubmitTech in Asia (startup database) (opens in a new tab)
Tech in Asia (startup database)
techinasia.comCreate a company profile and send a news tip about the free tools platform.
FreeQuickNeeds checkingLaunch platform - SubmitTechendo (opens in a new tab)
Techendo
techendo.comCreate a genuine founder profile and share a useful build story or tutorial with a relevant link.
Estimated domain authority DA ~30FreeQuickNeeds checkingCommunity - SubmitTolodora (opens in a new tab)
Tolodora
tolodora.comAdd your tool as a SaaS or online service with its official URL.
FreeQuickVerified liveSaaS 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.