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 filters1
High impactimpact 84
- SubmitNetlify Extensions Directory (opens in a new tab)
Netlify Extensions Directory
netlify.comBuild and test a Netlify extension, publish it publicly, then submit it for review and directory listing.
Estimated domain authority DA ~90FreeModerateVerified liveIntegration Directory - SubmitNixpkgs (opens in a new tab)
Nixpkgs
search.nixos.orgAdd and test a Nix expression for your genuine release with description, homepage, license and maintainer metadata.
Estimated domain authority DA ~75FreeModerateVerified livePackage Repository - SubmitODI Open Data Certificates (opens in a new tab)
ODI Open Data Certificates
certificates.theodi.orgPublish a machine-readable privacy, accessibility, or scam-pattern dataset or API and complete its evidence-based public certificate.
Estimated domain authority DA ~55FreeModerateVerified liveOpen Data - SubmitOllama Model Library (opens in a new tab)
Ollama Model Library
ollama.comPublish your small local-first classifier for privacy, secret detection, or defensive content analysis.
Estimated domain authority DA ~75FreeModerateVerified liveData and AI Catalog - SubmitOMR Reviews (opens in a new tab)
OMR Reviews
omr.comSuggest your tool and complete its B2B software profile.
Estimated domain authority DA ~70FreeModerateVerified liveSoftware Review Directory - SubmitOPA Ecosystem (opens in a new tab)
OPA Ecosystem
openpolicyagent.orgBuild a functional OPA/Rego privacy-policy integration or developer tool, document it, then add its ecosystem entry and logo through the official docs repository.
Estimated domain authority DA ~60FreeModerateVerified livePolicy as Code - SubmitOpen Textbook Library (opens in a new tab)
Open Textbook Library
open.umn.eduSubmit a complete, openly licensed privacy/digital-safety textbook already used in higher education.
Estimated domain authority DA ~85FreeModerateVerified liveEducation/OER - SubmitOpenFuture AI (opens in a new tab)
OpenFuture AI
openfuture.aiCreate an account and submit your tool or its qualifying AI tools.
Estimated domain authority DA ~40FreeModerateVerified liveAI Tool Directory - SubmitOpenLearn Create (opens in a new tab)
OpenLearn Create
open.eduPublish a free mini-course on privacy, redaction, scam detection, or accessibility with genuine your tool exercises in the curriculum.
Estimated domain authority DA ~90FreeModerateVerified liveOER / Education - SubmitOpenML (opens in a new tab)
OpenML
openml.orgPublish a documented, de-identified ML-ready benchmark such as labelled phishing, homograph, or accessibility test cases with provenance and an open license.
Estimated domain authority DA ~60FreeModerateVerified liveResearch Publishing - SubmitopenSUSE Build Service (opens in a new tab)
openSUSE Build Service
build.opensuse.orgCreate a public OBS project and package that builds your tool for supported Linux distributions with upstream links.
Estimated domain authority DA ~70FreeModerateVerified liveBuild Repository - SubmitPayhip (opens in a new tab)
Payhip
payhip.comPublish a genuinely useful free privacy checklist, redaction template, or safety workbook that complements your tool and has standalone value.
Estimated domain authority DA ~75FreeModerateVerified liveCreator Resources - SubmitQGIS Official Plugin Repository (opens in a new tab)
QGIS Official Plugin Repository
qgis.orgBuild a QGIS plugin that checks selected layers or exports for sensitive coordinates and metadata, then creates a safer copy.
Estimated domain authority DA ~80FreeModerateVerified liveGeospatial - SubmitQuarto Extensions (opens in a new tab)
Quarto Extensions
quarto.orgCreate a public Quarto extension for privacy, accessibility, or document checks with documentation, examples, and a license, then propose it for listing.
Estimated domain authority DA ~65FreeModerateVerified livePublishing Tools - SubmitRaindrop.io Public Pages (opens in a new tab)
Raindrop.io Public Pages
raindrop.ioPublish a carefully annotated collection of trustworthy privacy, accessibility, and safety resources, including only your tool pages that genuinely fit each section.
Estimated domain authority DA ~70NofollowFreeModerateVerified livePublishing & Curation - SubmitRubyGems.org (opens in a new tab)
RubyGems.org
rubygems.orgPackage your legitimate Ruby client or utility and add homepage and source metadata before pushing the gem.
Estimated domain authority DA ~80NofollowFreeModerateVerified livePackage Registry - SubmitRuntipi App Store (opens in a new tab)
Runtipi App Store
runtipi.ioCreate and locally test your Runtipi app with config, Compose metadata, safe secrets, screenshots, documentation, backups, and update behavior, then submit it.
Estimated domain authority DA ~35FreeModerateVerified liveSelf-hosted App Catalogs - SubmitSanity Exchange (opens in a new tab)
Sanity Exchange
sanity.ioBuild your Sanity Studio plugin, publish it to npm, and submit it to Sanity Exchange with documentation and support links.
Estimated domain authority DA ~75FreeModerateVerified liveCMS Plugin Showcase - SubmitScalar (opens in a new tab)
Scalar
scalar.usc.eduPublish a coherent multimedia field guide on privacy, scam evidence, or accessible documents with cited your tool demonstrations.
Estimated domain authority DA ~50FreeModerateVerified liveScholarly Multimedia - SubmitSnakemake Workflow Catalog (opens in a new tab)
Snakemake Workflow Catalog
snakemake.github.ioPublish a public reproducible privacy-safe research workflow with a Snakefile, README, configuration, catalog metadata, and tests.
Estimated domain authority DA ~50FreeModerateVerified liveResearch Workflows - SubmitSnap Store (opens in a new tab)
Snap Store
snapcraft.ioShip your installable Linux app or CLI as a snap with a complete store listing and website link.
Estimated domain authority DA ~85FreeModerateVerified liveApp Store - SubmitSpotSaaS (opens in a new tab)
SpotSaaS
spotsaas.comSubmit your accurate profile with its strongest software category, live URL, features, pricing and logo.
Estimated domain authority DA ~30FreeModerateVerified liveSoftware review marketplace - SubmitSSH Open Marketplace (opens in a new tab)
SSH Open Marketplace
marketplace.sshopencloud.euCreate your factual tool, workflow, or tutorial entry that genuinely serves social-science or humanities researchers.
Estimated domain authority DA ~40FreeModerateVerified liveResearch Infrastructure - SubmitStackBlitz (opens in a new tab)
StackBlitz
stackblitz.comPublish a working browser demo or starter that teaches your integration, with accurate title, description and canonical documentation link.
Estimated domain authority DA ~85NofollowFreeModerateVerified liveDeveloper demo platform - SubmitStartup India (opens in a new tab)
Startup India
startupindia.gov.inApply only if the legal entity behind your tool meets DPIIT eligibility, innovation, age, and turnover conditions.
Estimated domain authority DA ~75FreeModerateVerified liveFounder / Company Profile - SubmitStatamic Marketplace (opens in a new tab)
Statamic Marketplace
statamic.devBuild a useful Statamic/Laravel addon around your workflow, publish it on Packagist and submit the product to the official marketplace.
Estimated domain authority DA ~60FreeModerateVerified liveDeveloper Ecosystem - SubmitStorybook Integration Catalog (opens in a new tab)
Storybook Integration Catalog
storybook.js.orgBuild a Storybook panel or preset that reports metadata, accessibility, broken-link or deployed-story audit findings through your tool, then publish it as an npm addon.
Estimated domain authority DA ~75FreeModerateVerified liveUI Developer Tooling - SubmitStrapi Community Marketplace (opens in a new tab)
Strapi Community Marketplace
strapi.ioBuild your useful Strapi plugin and submit its package, repository, documentation, and your tool support URL.
Estimated domain authority DA ~80FreeModerateVerified liveCMS Plugin Marketplace - SubmitStreamlit Community Cloud (opens in a new tab)
Streamlit Community Cloud
streamlit.ioDeploy your educational data or AI demo from a public GitHub repository and include a useful link to the full tool or documentation.
Estimated domain authority DA ~75FreeModerateVerified liveDeveloper demo platform - SubmitSupaHunt (opens in a new tab)
SupaHunt
supahunt.comLaunch your tool with original copy, screenshots and maker details; use the free reviewed listing.
FreeModerateVerified liveLaunch platform - SubmitSuperLaunch (opens in a new tab)
SuperLaunch
superlaunch.inSubmit a complete India-relevant product profile with accurate founder information, category, website and launch assets.
FreeModerateVerified liveRegional product launch platform - SubmitSwift Package Index (opens in a new tab)
Swift Package Index
swiftpackageindex.comAdd a public Swift package with Package.swift, semantic-version tags, documentation and your homepage link.
Estimated domain authority DA ~55FreeModerateVerified livePackage Index - SubmitThe Dots (opens in a new tab)
The Dots
the-dots.comCreate the real designer/founder profile and add your original product-design or accessibility project with collaborators, role, process, and official URL.
Estimated domain authority DA ~55FreeModerateVerified liveProfessional Portfolio - SubmitThunderbird Add-ons (opens in a new tab)
Thunderbird Add-ons
addons.thunderbird.netBuild a legitimate Thunderbird MailExtension, complete its add-on page and submit it through the Developer Hub.
Estimated domain authority DA ~75NofollowFreeModerateVerified liveExtension Marketplace - SubmitToolhunt (opens in a new tab)
Toolhunt
toolhunt.devEmail your complete listing with a concise description, URL, tags, pricing, logo, screenshots and real features.
FreeModerateVerified liveDeveloper Tool Directory - SubmitToolJet Marketplace (opens in a new tab)
ToolJet Marketplace
tooljet.aiCreate your functional ToolJet plugin with clear documentation and tests, then submit it to the marketplace through the official contribution flow.
Estimated domain authority DA ~55FreeModerateVerified liveOpen-source Plugin Marketplace - SubmitTwine (opens in a new tab)
Twine
twine.netCreate a founder or developer portfolio and publish your build case study with screenshots, process, outcomes, and the live project link.
Estimated domain authority DA ~60FreeModerateVerified livePortfolio and Showcase - SubmitTypst Universe (opens in a new tab)
Typst Universe
typst.appBuild a reusable Typst privacy, accessibility, or document-checking package with a valid manifest, docs, examples, and tests, then submit it to the official packages repository.
Estimated domain authority DA ~60FreeModerateVerified livePublishing Tools - SubmitUmbrel App Store (opens in a new tab)
Umbrel App Store
apps.umbrel.comPackage your self-hosted privacy utility for umbrelOS, add required metadata and assets, test it on supported hardware, and submit the official app PR.
Estimated domain authority DA ~45FreeModerateVerified liveSelf-hosted App Catalogs - SubmitUnity Asset Store (opens in a new tab)
Unity Asset Store
unity.comBuild a polished Unity editor utility or SDK for your relevant service and submit it with demos, documentation and support details.
Estimated domain authority DA ~90FreeModerateVerified liveGame-development marketplace
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.