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 filters3
Usefulimpact 66
- Submit3D Slicer Extensions Catalog (opens in a new tab)
3D Slicer Extensions Catalog
extensions.slicer.orgBuild and test a Slicer extension for medical-image de-identification, metadata inspection or privacy validation, then add its .s4ext metadata to ExtensionIndex by pull request.
Estimated domain authority DA ~50FreeModerateVerified liveMedical Imaging Ecosystem - SubmitADPList (opens in a new tab)
ADPList
adplist.orgApply only if the founder or team member has real design/engineering leadership experience and intends to provide genuine mentoring, then add an accurate personal website/profile reference.
Estimated domain authority DA ~60NofollowFreeModerateVerified liveProfessional Profile - SubmitAlpine Linux Packages (opens in a new tab)
Alpine Linux Packages
pkgs.alpinelinux.orgPackage your stable CLI or self-hosted helper as a tested APKBUILD, add it under Alpine testing and submit an aports merge request with accurate project metadata.
Estimated domain authority DA ~70FreeModerateVerified liveOS Package Ecosystem - SubmitApps and Reports (opens in a new tab)
Apps and Reports
appsandreports.comRegister as your tool vendor and add its software/service profile.
FreeModerateVerified liveSoftware Catalog - SubmitArtStation (opens in a new tab)
ArtStation
artstation.comPublish an original UI/UX visual case study showing your tool interaction design, accessibility states, and design process, with a contextual project URL.
Estimated domain authority DA ~85NofollowFreeModerateVerified liveProfessional Portfolio - SubmitbalenaHub (opens in a new tab)
balenaHub
hub.balena.ioBuild a deployable edge privacy utility or reusable block, add balena.yml metadata, public source, configuration and multi-device tests, then publish it on balenaHub.
Estimated domain authority DA ~65FreeModerateVerified liveEdge Applications - SubmitCharmhub (opens in a new tab)
Charmhub
charmhub.ioPackage your maintained self-hosted deployment as a Juju charm with canonical documentation, source, and support links.
Estimated domain authority DA ~60FreeModerateVerified liveCloud Native - SubmitCinnamon Spices (opens in a new tab)
Cinnamon Spices
cinnamon-spices.linuxmint.comBuild a maintained Cinnamon applet that launches or monitors your useful local privacy workflow and submit it by pull request.
Estimated domain authority DA ~60FreeModerateVerified liveDesktop Extension - SubmitCK-12 FlexBooks (opens in a new tab)
CK-12 FlexBooks
ck12.orgCreate an age-appropriate digital-citizenship or privacy FlexBook chapter with practical your tool exercises.
Estimated domain authority DA ~80FreeModerateVerified liveOER / Education - SubmitCodidact Power Users (opens in a new tab)
Codidact Power Users
codidact.orgAnswer real end-user software or privacy questions in depth and reference your specific page only when it materially completes the answer.
Estimated domain authority DA ~40NofollowFreeModerateVerified liveQ&A and Knowledge - SubmitCoolify One-Click Services (opens in a new tab)
Coolify One-Click Services
coolify.ioCreate and fully test your Docker Compose service template, add metadata, logo, and documentation, then submit it to Coolify's next branch.
Estimated domain authority DA ~60FreeModerateVerified liveSelf-hosted App Catalogs - SubmitCreative Fabrica (opens in a new tab)
Creative Fabrica
creativefabrica.comApply as a designer and publish an original template, icon pack or printable that genuinely complements your workflow.
Estimated domain authority DA ~75NofollowFreeModerateVerified liveCreative asset marketplace - SubmitCreative Market (opens in a new tab)
Creative Market
creativemarket.comApply with a strong portfolio and sell your original -compatible template or design kit, using permitted shop branding and product documentation.
Estimated domain authority DA ~85NofollowFreeModerateVerified liveCreative asset marketplace - Submitdbt Package Hub (opens in a new tab)
dbt Package Hub
hub.getdbt.comBuild a useful dbt package for privacy classification, redaction tests or data-governance macros and add it to the Hub index by pull request.
Estimated domain authority DA ~65FreeModerateVerified liveData Engineering - SubmitdevRant (opens in a new tab)
devRant
devrant.comParticipate as a real developer with original lessons and honest build stories; reference your tool only if a specific discussion genuinely calls for the working example.
Estimated domain authority DA ~60NofollowFreeModerateVerified liveDeveloper Community - SubmitDevShowcase (opens in a new tab)
DevShowcase
devshowcase.devSign in with GitHub or Google and add your tool as a real portfolio project with tech stack.
FreeModerateVerified liveDeveloper Portfolio - SubmitDHIS2 App Hub (opens in a new tab)
DHIS2 App Hub
apps.dhis2.orgBuild a generic DHIS2 health-data de-identification or permission-audit app and submit it to App Hub for core-team review.
Estimated domain authority DA ~55FreeModerateVerified liveDigital Health - SubmitDiscourse Meta (opens in a new tab)
Discourse Meta
discourse.orgUse a real developer profile and contribute tested solutions on Discourse integrations, accessibility, or privacy only when the team has genuine implementation experience.
Estimated domain authority DA ~80NofollowFreeModerateVerified liveDeveloper Community - SubmitEcwid App Market (opens in a new tab)
Ecwid App Market
ecwid.comBuild your Ecwid app, propose it, sign the partner agreement, and submit it for review with website and support links.
Estimated domain authority DA ~80NofollowFreeModerateVerified liveEcommerce App Marketplace - SubmitEdTech Books (opens in a new tab)
EdTech Books
edtechbooks.orgCreate a structured open handbook on digital privacy or accessibility with reproducible your tool labs.
Estimated domain authority DA ~55FreeModerateVerified liveOER / Publishing - SubmitELIXIR TeSS (opens in a new tab)
ELIXIR TeSS
tess.elixir-europe.orgRegister a substantive life-science privacy, medical-data de-identification, or research-data training resource hosted by your tool.
Estimated domain authority DA ~45FreeModerateVerified liveLife-Science Training - SubmitEspanso Hub (opens in a new tab)
Espanso Hub
espanso.orgCreate a genuinely useful package of tested security-header, HTML-meta, JSON-LD and webhook snippets with your tool validation examples, then submit it to the official Hub.
Estimated domain authority DA ~50FreeModerateVerified liveProductivity Ecosystem - SubmitEVERSE Research Software Quality Kit (opens in a new tab)
EVERSE Research Software Quality Kit
everse.softwareDiscuss your substantive -backed research-software quality task or resource with the Editorial Board, then contribute through its approved workflow.
FreeModerateVerified liveResearch Software Quality - SubmitFAIRsharing (opens in a new tab)
FAIRsharing
fairsharing.orgSubmit your genuine -maintained database, reusable reporting standard, or data policy with complete stewardship metadata.
Estimated domain authority DA ~60FreeModerateVerified liveResearch Standards - SubmitFedora COPR (opens in a new tab)
Fedora COPR
copr.fedorainfracloud.orgCreate a COPR project, build maintained RPMs and add your official homepage and package documentation.
Estimated domain authority DA ~70FreeModerateVerified liveBuild Repository - SubmitFreeCAD Addons (opens in a new tab)
FreeCAD Addons
freecad.orgBuild an open-source FreeCAD privacy/metadata or document-cleanup workbench, add package.xml metadata, and submit it to the curated Addons index.
Estimated domain authority DA ~70FreeModerateVerified liveDeveloper Ecosystem - SubmitGlide Template Store (opens in a new tab)
Glide Template Store
glideapps.comPublish a substantive Glide template for privacy-safe records, evidence organization, or accessibility audits and link its your tool documentation where permitted.
Estimated domain authority DA ~70NofollowFreeModerateVerified liveNo-code Template Marketplace - SubmitGNOME Shell Extensions (opens in a new tab)
GNOME Shell Extensions
extensions.gnome.orgCreate a narrowly useful GNOME Shell extension, provide metadata and homepage or source information, and submit it for review.
Estimated domain authority DA ~75FreeModerateVerified liveExtension Repository - SubmitGovStack (opens in a new tab)
GovStack
govstack.globalJoin a working group and contribute a substantive building-block specification, use case, reference implementation or new proposal.
Estimated domain authority DA ~45FreeModerateVerified liveCivic Tech - SubmitGradle Plugin Portal (opens in a new tab)
Gradle Plugin Portal
gradle.orgShip a genuinely useful Gradle plugin for your developer check such as secret, licence, or configuration auditing; publish with your tool documentation and support URLs.
Estimated domain authority DA ~80FreeModerateVerified livePackage Registry - SubmitGRASS GIS Addons (opens in a new tab)
GRASS GIS Addons
grass.osgeo.orgBuild a GRASS GIS add-on for location anonymization, sensitive-zone generalization, or privacy-safe geospatial export, include docs and tests, then submit it to the official add-ons repository.
Estimated domain authority DA ~70FreeModerateVerified liveGeospatial Tools - SubmitHAL Open Science (opens in a new tab)
HAL Open Science
hal.scienceDeposit your research-level open-source component or related preprint/report with accurate project and source links.
Estimated domain authority DA ~85FreeModerateVerified liveResearch Infrastructure - SubmitHumanitarian Data Exchange (opens in a new tab)
Humanitarian Data Exchange
data.humdata.orgJoin an approved organization and publish a documented humanitarian privacy/safety dataset with licence and responsible-access settings.
Estimated domain authority DA ~80FreeModerateVerified liveHumanitarian Data - SubmitIcon-Icons (opens in a new tab)
Icon-Icons
icon-icons.comApply as the actual designer and publish a manually designed, consistent privacy or accessibility icon pack with an accurate public author profile.
Estimated domain authority DA ~70NofollowFreeModerateVerified liveDesign Asset Marketplace - SubmitIndieForge (opens in a new tab)
IndieForge
indie-forge.netCreate a truthful founder profile, showcase your tool, and participate consistently in relevant discussions.
FreeModerateVerified liveFounder Community - SubmitJournal of Open Source Education (opens in a new tab)
Journal of Open Source Education
jose.theoj.orgPackage a complete computational privacy or accessibility learning module and submit its reusable artifact plus Markdown paper.
Estimated domain authority DA ~40FreeModerateVerified liveOpen Education Journal - SubmitJS Bin (opens in a new tab)
JS Bin
jsbin.comCreate a focused educational demo for one your tool technique and share the public bin from an authentic profile.
Estimated domain authority DA ~80NofollowFreeModerateVerified liveDeveloper Project Showcase - SubmitKDE Store (opens in a new tab)
KDE Store
store.kde.orgPublish a genuinely useful KDE or Plasma asset or integration with accurate project and homepage details.
Estimated domain authority DA ~70FreeModerateVerified liveDesign Marketplace - SubmitLaunch.community (opens in a new tab)
Launch.community
launch.communityList only your genuine upcoming major release with date and waitlist information.
FreeModerateVerified liveLaunch Community - SubmitListYourTool (opens in a new tab)
ListYourTool
listyourtool.comSubmit your concise profile with its best differentiating utilities.
FreeModerateVerified liveTool 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.