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 66–63
- SubmitOmeka S Modules (opens in a new tab)
Omeka S Modules
omeka.orgCreate a maintained Omeka S module for collection metadata privacy, accessibility or link auditing, package it correctly and register the add-on with project and author links.
Estimated domain authority DA ~65FreeModerateVerified live - SubmitOpen Research Knowledge Graph (opens in a new tab)
Open Research Knowledge Graph
orkg.orgCreate a rigorous structured comparison of published privacy, redaction, or accessibility studies and include your tool only when supported by research.
Estimated domain authority DA ~45FreeModerateVerified live - SubmitOSF (opens in a new tab)
OSF
osf.ioCreate a public reproducibility project for your tool research, datasets, test methods, or privacy benchmarks and link the genuine project/site.
Estimated domain authority DA ~85NofollowFreeModerateVerified live - Submitportfolio.dev (opens in a new tab)
portfolio.dev
portfolio.devCreate a public case-study portfolio and add your tool with screenshots, live demo and build rationale.
FreeModerateVerified live - SubmitReliefWeb (opens in a new tab)
ReliefWeb
reliefweb.intAfter your tool has eligible ReliefWeb content, request publishing access and submit humanitarian reports or training from verified owned URLs.
Estimated domain authority DA ~85FreeModerateVerified live - SubmitRenkuLab (opens in a new tab)
RenkuLab
renkulab.ioCreate your reproducible evaluation project with code, data connectors, environment, narrative, and a public session launcher.
Estimated domain authority DA ~40FreeModerateVerified live - SubmitWhole Tale (opens in a new tab)
Whole Tale
wholetale.orgCreate a reproducible Tale containing your evaluation's data, code, environment, outputs, and narrative, then publish through a supported repository.
Estimated domain authority DA ~40FreeModerateVerified live - SubmitBCcampus Open Collection (opens in a new tab)
BCcampus Open Collection
bccampus.caPublish a Canadian-ready, openly licensed privacy or digital-citizenship textbook and use Contribute → Suggest a Textbook.
Estimated domain authority DA ~70Free + paid tierModerateVerified live - SubmitBuzzsprout (opens in a new tab)
Buzzsprout
buzzsprout.comLaunch your real educational podcast, complete its public site, and cite relevant tools and sources in useful show notes.
Estimated domain authority DA ~85Sometimes dofollowFree + paid tierModerateLive, conditional - SubmitCalaméo (opens in a new tab)
Calaméo
calameo.comPublish a polished original guide, research brief, or accessibility zine as a public document, with useful references and your relevant link inside the editorial content.
Estimated domain authority DA ~85NofollowFree + paid tierModerateVerified live - SubmitCargo (opens in a new tab)
Cargo
cargo.siteCreate an authentic your tool or founder design portfolio with substantive case studies and contextual links to shipped tools.
Estimated domain authority DA ~75Sometimes dofollowFree + paid tierModerateLive, conditional - SubmitCrevado (opens in a new tab)
Crevado
crevado.comCreate your complete product case study and add the canonical URL naturally within project text or a linked image.
Estimated domain authority DA ~60Sometimes dofollowFree + paid tierModerateNot submitted - SubmitDSCI Threat Intelligence & Research (opens in a new tab)
Pitch an original evidence-backed privacy, scam, or cyber advisory based on genuine your tool research.
Estimated domain authority DA ~50FreeInvolvedVerified live - SubmitInteroperable Europe / Joinup Solutions (opens in a new tab)
Interoperable Europe / Joinup Solutions
interoperable-europe.ec.europa.euPublish a mature open-source interoperability or public-administration solution with documentation, releases, licence, and owner metadata.
Estimated domain authority DA ~95FreeInvolvedVerified live - SubmitJourno Portfolio (opens in a new tab)
Journo Portfolio
journoportfolio.comCreate a founder portfolio with original your tool launch notes or product case studies and use an external-link page for the canonical website.
Estimated domain authority DA ~50Sometimes dofollowFree + paid tierModerateNot submitted - SubmitMilkshake (opens in a new tab)
Milkshake
milkshake.appBuild your free mobile mini-site with brand story, key collections, demos and contact links.
Estimated domain authority DA ~50Free + paid tierModerateVerified live - SubmitPaperCall (opens in a new tab)
PaperCall
papercall.ioSubmit useful your tool-related talks to relevant CFPs or run a genuine community CFP with a public event page.
Estimated domain authority DA ~55FreeInvolvedLive, conditional - SubmitPodcast Movement (opens in a new tab)
Podcast Movement
podcastmovement.comSubmit an educational, non-sales session on privacy-safe tooling or accessible creator workflows when the next CFP opens.
Estimated domain authority DA ~60FreeInvolvedVerified live - SubmitPortship (opens in a new tab)
Portship
portship.appClaim a builder profile and add your tool as a shipped project using its live public URL.
Free + paid tierModerateVerified live - Submitpretalx (opens in a new tab)
pretalx
pretalx.comUse pretalx for your genuine community conference or submit relevant talks to events that use the platform.
Estimated domain authority DA ~55Free + paid tierModerateLive, conditional - SubmitReactJS Example (opens in a new tab)
ReactJS Example
reactjsexample.comSubmit a reusable open-source React component extracted from your tool with repository, demo, setup docs and screenshots.
Estimated domain authority DA ~50DofollowFreeInvolvedLive, conditional - SubmitResearch Data Alliance Adoption Stories (opens in a new tab)
Research Data Alliance Adoption Stories
rd-alliance.orgDocument your real implementation of a named RDA recommendation with challenge, measurable outcome, lessons, and supporting resources.
Estimated domain authority DA ~65FreeInvolvedVerified live - SubmitThe Hacker News (opens in a new tab)
The Hacker News
thehackernews.comPitch original your tool security research, a defensible dataset or timely threat analysis.
Estimated domain authority DA ~85Sometimes dofollowFreeInvolvedVerified live - SubmitZotero Groups (opens in a new tab)
Zotero Groups
zotero.orgCreate a public privacy-tool research library with credible standards, papers, and references, including only genuinely relevant your tool documentation.
Estimated domain authority DA ~80NofollowFree + paid tierModerateVerified live
Long tailimpact 48–43
- SubmitActive Search Results (opens in a new tab)
Active Search Results
activesearchresults.comAdd your tool website listing.
Estimated domain authority DA ~40FreeQuickNeeds checking - SubmitFast Forward Tech Nonprofit Directory (opens in a new tab)
Apply only after your tool becomes a legally registered nonprofit with software central to scalable public impact.
Estimated domain authority DA ~50FreeQuickVerified live - SubmitLibHunt (opens in a new tab)
LibHunt
libhunt.comEligible if your component is open-sourced.
Estimated domain authority DA ~60NofollowFreeQuickNot submitted - SubmitThe Useless Web (opens in a new tab)
The Useless Web
theuselessweb.comSuggest a single-purpose, playful website so it can be added to the random rotation of sites.
FreeQuickNeeds checking - SubmitFilePuma (opens in a new tab)
FilePuma
filepuma.comSubmit only after your tool releases a signed Windows desktop utility.
Estimated domain authority DA ~60FreeModerateLive, conditional - SubmitMaven Central (opens in a new tab)
Maven Central
sonatype.orgRelease your genuine SDK, verify its namespace, sign artifacts, and include accurate project, SCM, license and developer URLs.
Estimated domain authority DA ~75FreeModerateLive, conditional - SubmitPreprints.org (opens in a new tab)
Preprints.org
preprints.orgPublish an original benchmark or evaluation study of local-first privacy or security tooling with open code, data, and your tool implementation.
Estimated domain authority DA ~75FreeModerateVerified live - SubmitResearchBox (opens in a new tab)
ResearchBox
researchbox.orgOrganize the complete code, data, materials, and outputs behind your real evaluation study into a public citable box.
Estimated domain authority DA ~30FreeModerateVerified live - SubmitSellfy (opens in a new tab)
Sellfy
sellfy.comPublish your substantive privacy template, workbook, or creator resource with a complete description, original previews, and accurate licensing.
Estimated domain authority DA ~75FreeModerateVerified live - SubmitWikiEducator (opens in a new tab)
WikiEducator
wikieducator.orgAuthor a freely licensed hands-on module for safe document sharing or privacy-first web use with relevant your tool examples.
Estimated domain authority DA ~55FreeModerateVerified live - SubmitLinkDR (opens in a new tab)
LinkDR
linkdr.comUse to organize submissions and find more SaaS directories.
Estimated domain authority DA ~20Free + paid tierQuickNeeds checking - SubmitNexus Spring of Code (opens in a new tab)
Nexus Spring of Code
nsoc.inRegister as a maintainer and submit your real open-source project with contributor-ready issues.
Free + paid tierQuickLive, conditional - SubmitDigital Unite (opens in a new tab)
Digital Unite
digitalunite.comIf you publish beginner tech guides, suggest them for their digital-skills resources.
Estimated domain authority DA ~60FreeInvolvedNeeds checking - SubmitSolid Applications (opens in a new tab)
Solid Applications
solidproject.orgBuild a genuine Solid privacy utility that lets users choose identity providers and stores or retrieves their data from Solid Pods, then confirm the current listing handoff with maintainers.
Estimated domain authority DA ~60FreeInvolvedVerified live - SubmitSpringwise (opens in a new tab)
Springwise
springwise.comPitch your tool as innovation/useful web tool platform.
Estimated domain authority DA ~75Sometimes dofollowFreeInvolvedNeeds checking - SubmitTechSoup (opens in a new tab)
TechSoup
techsoup.orgIf your tool helps nonprofits or libraries, reach out about their resource articles or partner programme.
Estimated domain authority DA ~75FreeInvolvedNeeds checking
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.