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
High impactimpact 86–84
- 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 - SubmitGeM (opens in a new tab)
GeM
gem.gov.inRegister an authorized Indian business seller and list only real eligible your tool services with accurate catalogue details.
Estimated domain authority DA ~70FreeQuickLive, conditionalGovernment Marketplace - SubmitGoodpods (opens in a new tab)
Goodpods
goodpods.comSearch for and claim your real podcast, then keep its RSS-supplied website and episode metadata accurate.
Estimated domain authority DA ~60NofollowFreeQuickLive, conditionalPodcast Directory - SubmitListen Notes (opens in a new tab)
Listen Notes
listennotes.comSubmit your real podcast RSS feed whose show website and episode notes naturally reference relevant tools.
Estimated domain authority DA ~80DofollowFreeQuickLive, conditionalPodcast Directory - SubmitOpen VSX Registry (opens in a new tab)
Open VSX Registry
open-vsx.orgPublish your useful editor extension whose marketplace metadata links to its homepage and documentation.
Estimated domain authority DA ~65FreeQuickLive, conditionalExtension Registry - SubmitOpenSourceAlternative.to (opens in a new tab)
OpenSourceAlternative.to
opensourcealternative.toSubmit a genuinely open-source, maintained and self-hostable your tool component as an alternative to a named proprietary tool.
Estimated domain authority DA ~35FreeQuickLive, conditionalOpen-Source Directory - SubmitPipedream Registry (opens in a new tab)
Pipedream Registry
pipedream.comBuild your tool triggers/actions, submit them to the public registry by GitHub PR, and address review feedback.
Estimated domain authority DA ~70FreeQuickLive, conditionalAutomation Component Marketplace - SubmitPlayer FM (opens in a new tab)
Player FM
player.fmSubmit your genuine podcast RSS feed or Apple Podcasts URL with accurate show-website and episode metadata.
Estimated domain authority DA ~80NofollowFreeQuickLive, conditionalPodcast Directory - SubmitPocket Casts (opens in a new tab)
Pocket Casts
pocketcasts.comSubmit your real public podcast RSS feed whose metadata and episode notes reference the official site naturally.
Estimated domain authority DA ~70FreeQuickLive, conditionalPodcast Directory - SubmitPRISM Break (opens in a new tab)
PRISM Break
prism-break.orgPropose your qualifying open-source privacy project through the official contribution process.
Estimated domain authority DA ~60DofollowFreeQuickLive, conditionalPrivacy Software Directory - SubmitPulseMCP (opens in a new tab)
PulseMCP
pulsemcp.comSubmit your tool MCP repository or public server URL, preferably after publishing it to the official MCP Registry.
Estimated domain authority DA ~45FreeQuickLive, conditionalMCP Directory - SubmitPWA Directory (opens in a new tab)
PWA Directory
pwa.directoryFirst pass PWA checks, then submit the installable HTTPS app with manifest, service worker, offline behavior, icons, and screenshots.
Estimated domain authority DA ~35FreeQuickLive, conditionalPWA directory - SubmitSessionize (opens in a new tab)
Sessionize
sessionize.comCreate a founder expert profile and submit substantive talks about privacy-first tools, accessibility or web security.
Estimated domain authority DA ~70FreeQuickLive, conditionalSpeaker Directory - SubmitTerraform Registry (opens in a new tab)
Terraform Registry
registry.terraform.ioPublish a maintained Terraform provider for your tool stable API, or a genuinely reusable deployment module, with signed releases, generated documentation, examples, tests, and semantic versions.
Estimated domain authority DA ~80FreeQuickLive, conditionalInfrastructure Ecosystem - SubmitAdobe Express Add-ons Marketplace (opens in a new tab)
Adobe Express Add-ons Marketplace
adobe.comBuild your redaction, accessibility, image, or privacy add-on and submit its public listing.
Estimated domain authority DA ~95NofollowFreeModerateLive, conditionalDesign Add-on Marketplace - SubmitAgentic.ai (opens in a new tab)
Agentic.ai
agentic.aiSubmit only your agent that independently decides, acts, and observes.
FreeModerateLive, conditionalAI Agent Directory - SubmitAI ToolNet (opens in a new tab)
AI ToolNet
aitoolnet.comSubmit only your tool features that genuinely use AI, after checking for an existing listing and preparing accurate pricing and use cases.
Estimated domain authority DA ~30FreeModerateLive, conditionalAI tool directory - SubmitAirbyte Connector Marketplace (opens in a new tab)
Airbyte Connector Marketplace
airbyte.comCreate a real source connector that lets consenting users export appropriate your tool data, provide tests and documentation, and contribute it to Airbyte's public connector catalog.
Estimated domain authority DA ~70NofollowFreeModerateLive, conditionalDeveloper Ecosystem - SubmitAmazon Music for Podcasters (opens in a new tab)
Amazon Music for Podcasters
podcasters.amazon.comSubmit and verify one genuine your tool podcast feed for distribution on Amazon Music and Audible.
Estimated domain authority DA ~95NofollowFreeModerateLive, conditionalPodcast Directory - SubmitAPILayer Marketplace (opens in a new tab)
APILayer Marketplace
apilayer.comPublish a stable, documented your tool API and apply as a provider with examples, uptime, support, and honest pricing.
Estimated domain authority DA ~60FreeModerateLive, conditionalAPI Marketplace - SubmitCastbox (opens in a new tab)
Castbox
castbox.fmAdd or claim your real podcast in Creator Studio and complete channel, site and episode metadata.
Estimated domain authority DA ~75NofollowFreeModerateLive, conditionalPodcast Directory - SubmitChocolatey Community Repository (opens in a new tab)
Chocolatey Community Repository
chocolatey.orgShip your real CLI or desktop utility as a tested package with homepage, project and support metadata.
Estimated domain authority DA ~75NofollowFreeModerateLive, conditionalWindows Package Registry - SubmitDatadog Integrations (opens in a new tab)
Datadog Integrations
datadoghq.comApply as a Datadog Technology Partner and build a production-grade integration that sends meaningful your tool telemetry, includes dashboards and documentation, and is useful to shared customers.
Estimated domain authority DA ~85NofollowFreeModerateLive, conditionalObservability Ecosystem - SubmitDiscord App Directory (opens in a new tab)
Discord App Directory
discord.comBuild and verify your Discord app, then enable Discovery in the Developer Portal.
Estimated domain authority DA ~95NofollowFreeModerateLive, conditionalCommunication App Directory - SubmitDocker Hub (opens in a new tab)
Docker Hub
docker.comPublish your maintained CLI or server image with source, documentation, descriptions and canonical homepage links.
Estimated domain authority DA ~90NofollowFreeModerateLive, conditionalContainer Ecosystem - SubmitElastic Integrations (opens in a new tab)
Elastic Integrations
elastic.coBuild an Elastic package that ingests legitimate your tool logs, metrics, or traces and supplies mappings, pipelines, dashboards, documentation, sample data, and automated tests.
Estimated domain authority DA ~85NofollowFreeModerateLive, conditionalObservability Ecosystem - SubmitFirefox Add-ons (opens in a new tab)
Firefox Add-ons
mozilla.orgBuild your useful privacy-preserving extension, submit a signed build, and provide honest homepage, permissions and privacy disclosures.
Estimated domain authority DA ~95NofollowFreeModerateLive, conditionalBrowser Extension - SubmitFOSSHub (opens in a new tab)
FOSSHub
fosshub.comApply with a signed, downloadable open-source or qualifying freeware build that needs reliable binary hosting, malware scanning, and a public project page.
Estimated domain authority DA ~70FreeModerateLive, conditionalOpen-Source Distribution - SubmitGitBook Integration Marketplace (opens in a new tab)
GitBook Integration Marketplace
gitbook.comBuild your real documentation/privacy integration, publish it as public, test it, then submit for GitBook review.
Estimated domain authority DA ~80NofollowFreeModerateLive, conditionalDeveloper Marketplace - SubmitGoogle Open Source Insights (opens in a new tab)
Google Open Source Insights
deps.devPublish your useful package to a supported registry with accurate source and homepage metadata so Open Source Insights can index it.
Estimated domain authority DA ~60FreeModerateLive, conditionalPackage Intelligence - SubmitHome Assistant Integrations (opens in a new tab)
Home Assistant Integrations
home-assistant.ioBuild and maintain a genuinely useful Home Assistant integration for your mature service, including the required Python client library, tests, documentation, and a focused Core pull request.
Estimated domain authority DA ~85FreeModerateLive, conditionalDeveloper Ecosystem - SubmitIFTTT Services (opens in a new tab)
IFTTT Services
ifttt.comJoin the partner platform and create your secure service with genuinely useful triggers, queries, and actions, pass endpoint tests and review, then publish helpful Applets for real user workflows.
Estimated domain authority DA ~90NofollowFreeModerateLive, conditionalAutomation Ecosystem - SubmitKaggle (opens in a new tab)
Kaggle
kaggle.comPublish your clean benchmark or open dataset plus a reproducible notebook, with proper licensing and the canonical project URL in the data card.
Estimated domain authority DA ~90NofollowFreeModerateLive, conditionalData Science Community - SubmitLinuxLinks (opens in a new tab)
LinuxLinks
linuxlinks.comSubmit your maintained desktop or CLI utility only after it runs natively on a modern Linux distribution and has a public OSI-approved license and repository.
Estimated domain authority DA ~60DofollowFreeModerateLive, conditionalOpen-Source Discovery - SubmitLocal-First Software (LoFi) (opens in a new tab)
Local-First Software (LoFi)
lofi.soPropose eligible your tool client-side or offline-first tools to the public directory with accurate site and source links.
FreeModerateLive, conditionalLocal-First Software Directory - SubmitMixcloud (opens in a new tab)
Mixcloud
mixcloud.comUpload your original audio explainer and place relevant resource links naturally in the show description.
Estimated domain authority DA ~90NofollowFreeModerateLive, conditionalAudio & Podcast - SubmitNew Relic Instant Observability (opens in a new tab)
New Relic Instant Observability
newrelic.comCreate a useful quickstart for monitoring your real deployment, with instrumentation instructions, a working data source, dashboards, alerts, documentation, and a GitHub contribution.
Estimated domain authority DA ~90FreeModerateLive, conditionalObservability Ecosystem
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.