Skip to main content
AltF Backlinks

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

1–100 of 309 opportunities

The table is wider than the screen — swipe it sideways for cost, effort and the preparation notes.

Submission opportunities with impact score, cost, effort, priority, status and preparation notes. Scroll horizontally for all columns.
#Impact (sorted)Site — sort by thisEst. DA — sort by thisLinkDomainTypeCostEffort — sort by thisPriorityStatusWhat to prepareRules / caveatCheckedActions
1663D Slicer Extensions Catalog50Link type unknownextensions.slicer.orgMarketplaces and app storesFreeModerateMediumVerified liveBuild 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.Medical/scientific imaging relevance is mandatory; automated platform builds must pass and health/privacy claims need responsible validation.2026-08-05Open 3D Slicer Extensions Catalog submit page (new tab)3D Slicer Extensions Catalog details
266ADPList60Nofollowadplist.orgReview platformsFreeModerateMediumVerified liveApply 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.Mentor approval criteria apply and a public profile must represent a real person, expertise, availability, and service—not a company backlink. Deliver actual mentorship and disclose AltFTool affiliation. Acceptance timing, profile discovery, external-link display, and rel/follow status are not guaranteed.2026-08-03Open ADPList submit page (new tab)ADPList details
366AI Tools Directory—Link type unknownaitoolsdirectory.siteAI tool directoriesFreeModerateMediumNot submittedSubmit a public AI-enabled your tool utility with its official URL, correct category, pricing model and an accurate quality-focused description.Manual review takes about 3–5 business days; product must be functional, genuinely AI-related, useful, non-duplicate and lawful; spam or misleading tools are rejected.2026-08-03Open AI Tools Directory submit page (new tab)AI Tools Directory details
466AINative Studio Ecosystem—Link type unknownainative.studioAI tool directoriesFreeModerateMediumLive, conditionalOpen a pull request for a genuine AI-native your tool component with repository metadata.AI-native open-source tool only; YAML contribution is reviewed weekly.2026-08-05Open AINative Studio Ecosystem submit page (new tab)AINative Studio Ecosystem details
566All My Faves50Link type unknownallmyfaves.comBusiness directoriesFreeModerateMediumNeeds checkingSubmit your tool (or its blog/feed where required) under productivity, privacy or developer tools.Human review may apply; use a natural brand title and avoid keyword stuffing. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/all-my-favesOpen All My Faves submit page (new tab)All My Faves details
666Alltop75Nofollowalltop.comBusiness directoriesFreeModerateMediumNeeds checkingSubmit your tool (or its blog/feed where required) under productivity, privacy or developer tools.Human review may apply; use a natural brand title and avoid keyword stuffing. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/alltopOpen Alltop submit page (new tab)Alltop details
766Alpine Linux Packages70Link type unknownpkgs.alpinelinux.orgDeveloper registriesFreeModerateMediumVerified livePackage a stable your tool CLI or self-hosted helper as a tested APKBUILD, add it under Alpine testing and submit an aports merge request with accurate project metadata.A web wrapper will not qualify; software must run usefully on Alpine, pass lint/build checks and be maintained through review and repository promotion.2026-08-05Open Alpine Linux Packages submit page (new tab)Alpine Linux Packages details
866Amazon Appstore95Nofollowamazon.comMarketplaces and app storesFreeModerateMediumLive, conditionalSubmit a tested your app for compatible Amazon devices with complete descriptions, support links, privacy details and store assets.Requires a real APK/AAB or VPKG, physical-device testing, policy compliance and review; not intended for generic promotional wrappers.2026-08-05 official Amazon Appstore submission guideOpen Amazon Appstore submit page (new tab)Amazon Appstore details
966Analytics Vidhya75Sometimes dofollowanalyticsvidhya.comPublishing platformsFreeModerateMediumNeeds checkingJoin the writer community and publish data science or ML articles, which go through a light editorial review.Plagiarised or AI-spun articles are rejected and links must be relevant to the topic.Added 2026-11-01Open Analytics Vidhya submit page (new tab)Analytics Vidhya details
1066Android Enthusiasts80Nofollowandroid.stackexchange.comCommunities and forumsFreeModerateMediumNeeds checkingAnswer Android questions properly and add your site to your profile.Same Stack Exchange rules: disclose affiliation and keep answers self-contained.Added 2026-11-01Open Android Enthusiasts submit page (new tab)Android Enthusiasts details
1166Apps and Reports—Link type unknownappsandreports.comSoftware directoriesFreeModerateMediumVerified liveRegister as your tool vendor and add its software/service profile.Business and product information must be verifiable.https://www.appsandreports.com/vendor-registrationOpen Apps and Reports submit page (new tab)Apps and Reports details
1266ArtStation85Nofollowartstation.comOther opportunitiesFreeModerateMediumVerified livePublish an original UI/UX visual case study showing your tool interaction design, accessibility states, and design process, with a contextual project URL.Use ArtStation only if there is substantial original visual/design work, complete project metadata, and rights-cleared assets; it is not a generic SaaS listing. Disclose the creator's relationship to AltFTool. Projects and links are UGC, subject to platform moderation, and neither discovery nor followed-link status is guaranteed.2026-08-03Open ArtStation submit page (new tab)ArtStation details
1366arXiv95Nofollowarxiv.orgDeveloper registriesFreeModerateMediumLive, conditionalSubmit an original your tool-related technical paper and cite your tool only where it is genuinely the software or study subject.Requires scholarly content in an accepted category, author registration and sometimes endorsement; promotional papers are inappropriate.https://info.arxiv.org/help/submit/index.htmlOpen arXiv submit page (new tab)arXiv details
1466Ask Different80Nofollowapple.stackexchange.comCommunities and forumsFreeModerateMediumNeeds checkingAnswer Mac and iPhone questions in full, linking your own page only when it adds detail the answer cannot hold.Disclose that you own the linked site; link-only answers are removed.Added 2026-11-01Open Ask Different submit page (new tab)Ask Different details
1566AsyncAPI Tools Dashboard60Link type unknownasyncapi.comSoftware directoriesFreeModerateMediumLive, conditionalIf your tool ships a real tool that reads, validates, generates, visualizes, or otherwise supports AsyncAPI documents, add the required .asyncapi-tool metadata file and submit it for the public tools dashboard.Only submit an actually usable AsyncAPI-related tool with accurate metadata, documentation, repository or supported manual entry, and maintained compatibility. A generic AltFTool product listing or promotional backlink does not qualify.2026-08-03Open AsyncAPI Tools Dashboard submit page (new tab)AsyncAPI Tools Dashboard details
1666Awesome-AITools (ikaijua)—Link type unknowngithub.com/ikaijua/awesome-aitoolsDeveloper registriesFreeModerateMediumNeeds checkingAdd the AI prompt generator tools via PR in the existing table format (English + Chinese columns).Repo explicitly welcomes PRs; bilingual format.Added 2026-11-01Open Awesome-AITools (ikaijua) submit page (new tab)Awesome-AITools (ikaijua) details
1766Awesome-Design-Tools—Link type unknowngithub.com/goabstract/awesome-design-toolsDeveloper registriesFreeModerateMediumNeeds checkingPropose the colour, image-resize and SVG tools in the matching design tool category.High-traffic list; they reject generic all-in-one sites, so pitch a specific tool page.Added 2026-11-01Open Awesome-Design-Tools submit page (new tab)Awesome-Design-Tools details
1866awesome-devtools (devtoolsd)—Link type unknowngithub.com/devtoolsd/awesome-devtoolsDeveloper registriesFreeModerateMediumNeeds checkingSubmit the developer tools hub as a browser-based utilities collection.Follow the list's alphabetical ordering rules.Added 2026-11-01Open awesome-devtools (devtoolsd) submit page (new tab)awesome-devtools (devtoolsd) details
1966awesome-json—Link type unknowngithub.com/burningtree/awesome-jsonDeveloper registriesFreeModerateMediumNeeds checkingAdd the AltFTool JSON formatter/validator under online tools via PR.Maintenance can be slow; only add the specific JSON tool page.Added 2026-11-01Open awesome-json submit page (new tab)awesome-json details
2066Awesome-Prompt-Engineering—Link type unknowngithub.com/promptslab/awesome-prompt-engineeringDeveloper registriesFreeModerateMediumNeeds checkingAdd the AI prompt tools to the Tools/Apps section via PR.Research-heavy list; tools section is selective.Added 2026-11-01Open Awesome-Prompt-Engineering submit page (new tab)Awesome-Prompt-Engineering details
2166awesome-web-dev-tools—Link type unknowngithub.com/naughtyspirit/awesome-web-dev-toolsDeveloper registriesFreeModerateMediumNeeds checkingAdd the developer utilities hub (encoders, formatters, minifiers) under tools.Check last commit date before submitting.Added 2026-11-01Open awesome-web-dev-tools submit page (new tab)awesome-web-dev-tools details
2266Backstage Plugin Directory70Link type unknownbackstage.ioMarketplaces and app storesFreeModerateMediumLive, conditionalBuild and openly maintain a Backstage plugin that gives platform teams a real your tool workflow, then announce it through the community-plugins process and meet directory metadata requirements.The plugin must solve a genuine developer-platform problem and follow Backstage's frontend/backend systems, design guidance, repository rules, testing, review, licensing, and release process. Create the recommended community issue before contributing; avoid a promotional shell.2026-08-03Open Backstage Plugin Directory submit page (new tab)Backstage Plugin Directory details
2366balenaHub65Link type unknownhub.balena.ioOther opportunitiesFreeModerateMediumVerified liveBuild a deployable edge privacy utility or reusable block, add balena.yml metadata, public source, configuration and multi-device tests, then publish it on balenaHub.Must be a real balena app or block, link a GitHub repository, avoid embedded secrets, support claimed architectures, and maintain deployability.Official balena apps, blocks, and balenaHub publishing docs checked 2026-08-05Open balenaHub submit page (new tab)balenaHub details
2466Beebom—Link type unknownbeebom.comPublishing platformsFreeModerateMediumNeeds checkingPitch the India-built free tools platform for their tools/how-to articles.Large Indian tech site; good local relevance.Added 2026-11-01Open Beebom submit page (new tab)Beebom details
2566Best of Web—Link type unknownbestofweb.siteStartup directoriesFreeModerateMediumNeeds checkingSubmit your tool as startup/tool; source says free dofollow.Verify current listing requirements.2026-07-30Open Best of Web submit page (new tab)Best of Web details
2666Charmhub60Link type unknowncharmhub.ioOther opportunitiesFreeModerateMediumVerified livePackage a maintained self-hosted your tool deployment as a Juju charm with canonical documentation, source, and support links.Register the charm name, upload and release a tested charm; formal community review is required for search visibility.Official Charmcraft charm management documentation checked 2026-08-07Open Charmhub submit page (new tab)Charmhub details
2766Cinnamon Spices60Link type unknowncinnamon-spices.linuxmint.comMarketplaces and app storesFreeModerateMediumVerified liveBuild a maintained Cinnamon applet that launches or monitors a useful local your tool privacy workflow and submit it by pull request.Must follow the UUID/file structure, include info.json, screenshot and functional code, pass validate-spice, contain no malicious behavior, and pass team review.2026-08-05 — https://github.com/linuxmint/cinnamon-spices-appletsOpen Cinnamon Spices submit page (new tab)Cinnamon Spices details
2866CK-12 FlexBooks80Link type unknownck12.orgOther opportunitiesFreeModerateMediumVerified liveCreate an age-appropriate digital-citizenship or privacy FlexBook chapter with practical your tool exercises.Must be substantive K-12 educational content with correct authorship; do not create a product-only page.2026-08-05 — https://help.ck12.org/hc/en-us/articles/200448244-How-to-Customize-a-FlexBook-Textbook-or-Read-ModalityOpen CK-12 FlexBooks submit page (new tab)CK-12 FlexBooks details
2966Codidact Power Users40Nofollowcodidact.orgSoftware directoriesFreeModerateMediumVerified liveAnswer real end-user software or privacy questions in depth and reference a specific your tool page only when it materially completes the answer.Disclose affiliation; irrelevant or undisclosed product promotion is spam, and manufactured questions or generic link drops are prohibited.Official Codidact signup and help guidance checked 2026-08-07Open Codidact Power Users submit page (new tab)Codidact Power Users details
3066Come AI—Link type unknowniatool.onlineAI tool directoriesFreeModerateMediumNot submittedSubmit a specific AI-powered your tool utility with its official URL, category and a factual description for editorial review.AI tools only; every submission is reviewed; featured placement is paid and should not be described as an independent recommendation.2026-08-03Open Come AI submit page (new tab)Come AI details
3166Cool Tools (kk.org)—Link type unknownkk.orgPublishing platformsFreeModerateMediumNeeds checkingSubmit a reader-style recommendation of the step counter or PDF tools explaining real use.Editorial; must be a genuine, useful recommendation, not an ad.Added 2026-11-01Open Cool Tools (kk.org) submit page (new tab)Cool Tools (kk.org) details
3266Coolify One-Click Services60Link type unknowncoolify.ioOther opportunitiesFreeModerateMediumVerified liveCreate and fully test an your tool Docker Compose service template, add metadata, logo, and documentation, then submit it to Coolify's next branch.The upstream Git repository currently needs at least 1,000 stars; template, secrets, storage, port, docs, and review rules apply.Official Coolify service-contribution guide checked 2026-08-05Open Coolify One-Click Services submit page (new tab)Coolify One-Click Services details
3366CrazyGames Developer Portal70Link type unknowncrazygames.comMarketplaces and app storesFreeModerateMediumNeeds checkingUpload a finished HTML5 game through the developer portal; it goes through a playtest phase before a full release, and the game page credits you as the developer.Games are reviewed for quality and must run in the browser; integrating their SDK is needed for ad revenue share.Added 2026-11-01Open CrazyGames Developer Portal submit page (new tab)CrazyGames Developer Portal details
3466Creative Fabrica75Nofollowcreativefabrica.comMarketplaces and app storesFreeModerateMediumVerified liveApply as a designer and publish an original template, icon pack or printable that genuinely complements an your tool workflow.Products are reviewed and must be owned and licensed by the seller; personal contact details and unauthorized external links are restricted in product listings.2026-08-03Open Creative Fabrica submit page (new tab)Creative Fabrica details
3566Creative Market85Nofollowcreativemarket.comMarketplaces and app storesFreeModerateMediumVerified liveApply with a strong portfolio and sell an original your tool-compatible template or design kit, using permitted shop branding and product documentation.Shop approval requires a portfolio; products must be original, properly licensed and commercially useful. External-link placement is controlled by marketplace rules.2026-08-03Open Creative Market submit page (new tab)Creative Market details
3666Curlie80Dofollowcurlie.orgBusiness directoriesFreeModerateMediumNeeds checkingSubmit your tool (or its blog/feed where required) under productivity, privacy or developer tools.Human review may apply; use a natural brand title and avoid keyword stuffing. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/curlieOpen Curlie submit page (new tab)Curlie details
3766dbt Package Hub65Link type unknownhub.getdbt.comDeveloper registriesFreeModerateMediumVerified liveBuild a useful dbt package for privacy classification, redaction tests or data-governance macros and add it to the Hub index by pull request.Must be a functional versioned dbt package with accurate package metadata, public source and releases; Hub index PR and automated compatibility checks apply.2026-08-05 — https://github.com/dbt-labs/hub.getdbt.comOpen dbt Package Hub submit page (new tab)dbt Package Hub details
3866Developers Italia55Link type unknowndevelopers.italia.itSoftware directoriesFreeModerateMediumLive, conditionalIf an your tool component is open source and genuinely targeted at public administration, add valid publiccode.yml metadata so the catalogue crawler can discover it.Catalogue is for software released by public administrations or third-party open source aimed at the public sector; metadata claims are self-declared and must be accurate.2026-08-05 official Developers Italia Get Involved and publiccode.yml guidanceOpen Developers Italia submit page (new tab)Developers Italia details
3966devRant60Nofollowdevrant.comProfiles and entitiesFreeModerateMediumVerified liveParticipate 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.devRant treats accounts whose posts/comments mainly consist of links, duplicates, misleading identities, random comments, or purchased interactions as spam. Do not use a business name to mislead, disclose affiliation, and contribute without expecting a backlink. All links/posts are moderated UGC with no indexing or followed-link guarantee.2026-08-03Open devRant submit page (new tab)devRant details
4066DevShowcase—Link type unknowndevshowcase.devDesign galleriesFreeModerateMediumVerified liveSign in with GitHub or Google and add your tool as a real portfolio project with tech stack.Use an authentic developer identity and substantive project information.2026-08-03Open DevShowcase submit page (new tab)DevShowcase details
4166DHIS2 App Hub55Link type unknownapps.dhis2.orgSoftware directoriesFreeModerateMediumVerified liveBuild a generic DHIS2 health-data de-identification or permission-audit app and submit it to App Hub for core-team review.Must be useful across DHIS2 implementations, open source, documented, secure, performant, and free of advertising or hidden collection.Official DHIS2 App Hub publishing and review guidelines checked 2026-08-05Open DHIS2 App Hub submit page (new tab)DHIS2 App Hub details
4266Discourse Meta80Nofollowdiscourse.orgProfiles and entitiesFreeModerateMediumVerified liveUse a real developer profile and contribute tested solutions on Discourse integrations, accessibility, or privacy only when the team has genuine implementation experience.Meta is for improving Discourse discussions, not promoting AltFTool; spam, cross-posting, work solicitation outside Marketplace, and pasted AI replies are prohibited. Link only when essential, disclose affiliation, and never sign posts with promotional copy. Posts/profile links are moderated UGC with no permanence or followed-link guarantee.2026-08-03Open Discourse Meta submit page (new tab)Discourse Meta details
4366Docusaurus Showcase75Link type unknowndocusaurus.ioDesign galleriesFreeModerateMediumLive, conditionalIf your tool documentation genuinely runs on Docusaurus, add the polished docs site through the official showcase discussion.Framework use is mandatory; maintain a polished live site and follow the current GitHub discussion template.2026-08-05Open Docusaurus Showcase submit page (new tab)Docusaurus Showcase details
4466Ecwid App Market80Nofollowecwid.comMarketplaces and app storesFreeModerateMediumVerified liveBuild an your tool Ecwid app, propose it, sign the partner agreement, and submit it for review with website and support links.Requires a real public app, partner contract, review, support, and eligible legal and payments setup; listing is not guaranteed.Official Ecwid public app overview checked 2026-08-07Open Ecwid App Market submit page (new tab)Ecwid App Market details
4566EdTech Books55Link type unknownedtechbooks.orgPublishing platformsFreeModerateMediumVerified liveCreate a structured open handbook on digital privacy or accessibility with reproducible your tool labs.Use the publication workflow for a substantive book or proceedings item, clear all rights, and avoid thin SEO content.2026-08-05 — https://edtechbooks.s3.us-west-2.amazonaws.com/pdfs/40/3135.pdfOpen EdTech Books submit page (new tab)EdTech Books details
4666Educators Technology—Link type unknowneducatorstechnology.comPublishing platformsFreeModerateMediumNeeds checkingPitch the free tools for their teacher tool roundups.Contact the editor; roundups are frequent.Added 2026-11-01Open Educators Technology submit page (new tab)Educators Technology details
4766ELIXIR TeSS45Link type unknowntess.elixir-europe.orgOther opportunitiesFreeModerateMediumVerified liveRegister a substantive life-science privacy, medical-data de-identification, or research-data training resource hosted by your tool.Content must be relevant to life sciences or an adjacent field; account and accurate metadata required, while harvested providers need admin approval.2026-08-05 — https://tess.elixir-europe.org/about/registeringOpen ELIXIR TeSS submit page (new tab)ELIXIR TeSS details
4866Espanso Hub50Link type unknownespanso.orgDeveloper registriesFreeModerateMediumVerified liveCreate 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.Every package receives CI and human review, with extra scrutiny for scripts; avoid promotional expansions and any shell action that could harm users.2026-08-05Open Espanso Hub submit page (new tab)Espanso Hub details
4966EVERSE Research Software Quality Kit—Link type unknowneverse.softwareSoftware directoriesFreeModerateMediumVerified liveDiscuss a substantive your tool-backed research-software quality task or resource with the Editorial Board, then contribute through its approved workflow.Significant content should be discussed first; contribution must teach reusable practice rather than advertise.Official RSQKit contribution and editorial guides checked 2026-08-05Open EVERSE Research Software Quality Kit submit page (new tab)EVERSE Research Software Quality Kit details
5066FAIRsharing60Link type unknownfairsharing.orgOther opportunitiesFreeModerateMediumVerified liveSubmit a genuine your tool-maintained database, reusable reporting standard, or data policy with complete stewardship metadata.Generic software and individual datasets are out of scope; record type must match FAIRsharing scope and is curated.2026-08-05 — https://fairsharing.org/new/Open FAIRsharing submit page (new tab)FAIRsharing details
5166Fedora COPR70Link type unknowncopr.fedorainfracloud.orgDeveloper registriesFreeModerateMediumVerified liveCreate a COPR project, build maintained RPMs and add the official your tool homepage and package documentation.COPR is a build service rather than Fedora's main repository; provide legitimate source RPMs and support them.Official Fedora Developer Portal checked 2026-07-30Open Fedora COPR submit page (new tab)Fedora COPR details
5266FileHippo85Nofollowfilehippo.comSoftware directoriesFreeModerateMediumNeeds checkingContact them to have your Windows or Mac software added to the catalogue.Editorial choice; files are scanned before listing.Added 2026-11-01Open FileHippo submit page (new tab)FileHippo details
5366FileHorse70Link type unknownfilehorse.comSoftware directoriesFreeModerateMediumNeeds checkingSend your Windows or Mac software for review via their submission or contact page.Editors only list software they consider useful and clean.Added 2026-11-01Open FileHorse submit page (new tab)FileHorse details
5466Firefox Add-ons95Nofollowaddons.mozilla.orgMarketplaces and app storesFreeModerateMediumNot submittedPublish privacy/helper extension.Requires real extension and Mozilla review.2026-07-30Open Firefox Add-ons submit page (new tab)Firefox Add-ons details
5566Flathub75Nofollowflathub.orgMarketplaces and app storesFreeModerateMediumLive, conditionalSubmit a mature graphical Linux your app with verified metadata, screenshots, homepage and source links.Strictly requires a functional Flatpak; current Flathub policy disallows generative-AI-assisted submission code, content and review comments.Official Flathub submission docs checked 2026-07-30Open Flathub submit page (new tab)Flathub details
5666Free Technology for Teachers—Link type unknownfreetech4teachers.comPublishing platformsFreeModerateMediumNeeds checkingPitch one classroom-useful tool (e.g., PDF merge) with a short use case.Popular teacher blog; selective.Added 2026-11-01Open Free Technology for Teachers submit page (new tab)Free Technology for Teachers details
5766free-for-dev—Link type unknowngithub.com/ripienaar/free-for-devDeveloper registriesFreeModerateMediumNeeds checkingOnly if a developer-facing free tier fits (e.g., an API), add it under the right section with the exact free limits.Strict rules: SaaS free tiers for devs only; plain tool sites are usually rejected.Added 2026-11-01Open free-for-dev submit page (new tab)free-for-dev details
5866FreeCAD Addons70Link type unknownfreecad.orgMarketplaces and app storesFreeModerateMediumVerified liveBuild an open-source FreeCAD privacy/metadata or document-cleanup workbench, add package.xml metadata, and submit it to the curated Addons index.Must be a real installable FreeCAD addon with supported license, repository metadata, docs and compatibility; catalog acceptance/review required.2026-08-05 — https://github.com/FreeCAD/FreeCAD-macrosOpen FreeCAD Addons submit page (new tab)FreeCAD Addons details
5966FSF Free Software Directory85Link type unknownfsf.orgSoftware directoriesFreeModerateMediumNot submittedRelease a genuinely free-software your tool desktop or self-hosted component with free documentation and transparent downloads, then submit a custom directory entry.Software must meet FSF freedom, documentation and GNU/free-OS requirements and pass administrator review; the web-only proprietary service is not eligible by itself.2026-08-03Open FSF Free Software Directory submit page (new tab)FSF Free Software Directory details
6066gHacks—Link type unknownghacks.netPublishing platformsFreeModerateMediumNeeds checkingSend a tip about the browser extension or a useful web tool.Software-focused blog; tips via contact page.Added 2026-11-01Open gHacks submit page (new tab)gHacks details
6166Glide Template Store70Nofollowglideapps.comMarketplaces and app storesFreeModerateMediumVerified livePublish a substantive Glide template for privacy-safe records, evidence organization, or accessibility audits and link its your tool documentation where permitted.The template must be original, reusable, polished, documented, privacy-safe, and pass review; a promotional shell will not qualify.Official Glide template publishing guide and Template Store terms checked 2026-08-07Open Glide Template Store submit page (new tab)Glide Template Store details
6266GNOME Shell Extensions75Link type unknownextensions.gnome.orgMarketplaces and app storesFreeModerateMediumVerified liveCreate a narrowly useful GNOME Shell extension, provide metadata and homepage or source information, and submit it for review.Must be GNOME Shell-specific, safe and policy-compliant; manual review queues can be slow.Official GNOME extension review page checked 2026-07-30Open GNOME Shell Extensions submit page (new tab)GNOME Shell Extensions details
6366GovStack45Link type unknowngovstack.globalOther opportunitiesFreeModerateMediumVerified liveJoin a working group and contribute a substantive building-block specification, use case, reference implementation or new proposal.Needs sustained expert contribution; Apache-2.0/IP terms apply; link must be directly relevant to the implementation.2026-08-05 — https://specs.govstack.global/overview/25q2-1/contributingOpen GovStack submit page (new tab)GovStack details
6466Gradle Plugin Portal80Link type unknowngradle.orgMarketplaces and app storesFreeModerateMediumVerified liveShip a genuinely useful Gradle plugin for an your tool developer check such as secret, licence, or configuration auditing; publish with your tool documentation and support URLs.Initial version is manually reviewed; the plugin needs real functionality, broad usefulness, public documentation, and accurate compatibility declarations.Official Gradle Plugin Portal publishing documentation checked 2026-08-07Open Gradle Plugin Portal submit page (new tab)Gradle Plugin Portal details
6566GRASS GIS Addons70Link type unknowngrass.osgeo.orgMarketplaces and app storesFreeModerateMediumVerified liveBuild 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.Must provide genuine GRASS functionality, follow programming and licensing rules, include a manual page and tests, and pass build and maintainer review.Official GRASS contribution page and current add-ons documentation checked 2026-08-05Open GRASS GIS Addons submit page (new tab)GRASS GIS Addons details
6666Grav GPM70Link type unknowngetgrav.orgMarketplaces and app storesFreeModerateMediumLive, conditionalCreate a useful Grav privacy or security plugin and request inclusion through the official repository issue process.Team reviews code and metadata against project standards; blueprint, release and homepage fields must be accurate.2026-08-05 official Grav GPM documentationOpen Grav GPM submit page (new tab)Grav GPM details
6766GrowYG—Link type unknowngrowyg.co.inStartup directoriesFreeModerateMediumLive, conditionalApply as a startup with your tool website, category, location, description and product details.Admin approval required; platform is early-stage and currently has limited live profiles.2026-08-03Open GrowYG submit page (new tab)GrowYG details
6866HackMD75Nofollowhackmd.ioDeveloper registriesFreeModerateMediumLive, conditionalCreate a substantive public tutorial or implementation note that uses your tool and includes a contextual source/product link.Public notes must provide original useful content; avoid duplicated marketing copy and disclose affiliation where appropriate.https://hackmd.io/c/tutorials/%2Fs%2Fhow-to-publish-noteOpen HackMD submit page (new tab)HackMD details
6966HAL Open Science85Link type unknownhal.scienceSoftware directoriesFreeModerateMediumVerified liveDeposit a research-level open-source your tool component or related preprint/report with accurate project and source links.Research-software or scholarly output only; accurate authorship, affiliation, rights, licence and metadata; deposits may be reviewed and cannot be self-deleted after acceptance.2026-08-05 — https://doc.hal.science/en/deposer/deposer-le-code-source/Open HAL Open Science submit page (new tab)HAL Open Science details
7066Harvard Dataverse95Link type unknowndataverse.harvard.eduDeveloper registriesFreeModerateMediumLive, conditionalDeposit a genuine your tool benchmark, evaluation dataset or reproducibility bundle with project URL in the description/metadata.Account and appropriate collection permissions are required; data must have lawful sharing rights and complete citation metadata.https://guides.dataverse.org/en/latest/user/dataset-management.htmlOpen Harvard Dataverse submit page (new tab)Harvard Dataverse details
7166Hasgeek—Link type unknownhasgeek.comCommunities and forumsFreeModerateMediumNeeds checkingPropose a talk on building privacy-first browser tools at a relevant Hasgeek event.Indian tech community events; talk pages link to speaker sites.Added 2026-11-01Open Hasgeek submit page (new tab)Hasgeek details
7266Help a B2B Writer45Link type unknownhelpab2bwriter.comPR and source platformsFreeModerateMediumNeeds checkingRegister as source for B2B content quote opportunities.Use tech/SaaS/privacy expertise categories.2026-07-30Open Help a B2B Writer submit page (new tab)Help a B2B Writer details
7366Homebrew40Link type unknownhomebrew.shSoftware directoriesFreeModerateMediumNot submittedIf your tool ships a macOS CLI or desktop helper, create a maintained tap with a real release, version, checksum, and official homepage metadata.This is unsuitable for a web-only product; the package must install correctly and releases, checksums, and maintenance must remain current.2026-08-03Open Homebrew submit page (new tab)Homebrew details
7466Homebrew75Link type unknownbrew.shOther opportunitiesFreeModerateMediumLive, conditionalAfter releasing a real your tool CLI or native app, submit a tested formula or cask with its canonical homepage.Formula must meet open-source, stability, build and test rules; casks need a supported upstream binary and notability may affect acceptance.2026-08-05 official Homebrew Adding Software and Acceptable Formulae guidesOpen Homebrew submit page (new tab)Homebrew details
7566Hongkiat—Link type unknownhongkiat.comPublishing platformsFreeModerateMediumNeeds checkingPitch the free online tools for their tool roundup posts.Pitch via contact; long-running design/tech blog.Added 2026-11-01Open Hongkiat submit page (new tab)Hongkiat details
7666Huawei AppGallery90Nofollowdeveloper.huawei.comMarketplaces and app storesFreeModerateMediumLive, conditionalPublish an your tool Android app through AppGallery Connect with official site, support and privacy URLs.Identity verification, app package, localized metadata, privacy policy and AppGallery review are required.https://developer.huawei.com/consumer/en/appgallery/Open Huawei AppGallery submit page (new tab)Huawei AppGallery details
7766Humanitarian Data Exchange80Link type unknowndata.humdata.orgOther opportunitiesFreeModerateMediumVerified liveJoin an approved organization and publish a documented humanitarian privacy/safety dataset with licence and responsible-access settings.OCHA reviews organization identity and scope; data must be humanitarian, and sensitive data needs responsible handling; a PDF alone is not a dataset.2026-08-05 — https://centre.humdata.org/ufaqs/how-do-i-share-data-on-hdx/Open Humanitarian Data Exchange submit page (new tab)Humanitarian Data Exchange details
7866Icon-Icons70Nofollowicon-icons.comMarketplaces and app storesFreeModerateMediumVerified liveApply as the actual designer and publish a manually designed, consistent privacy or accessibility icon pack with an accurate public author profile.Approval and full rights are required; AI-generated icons are not accepted, and payout uses supported processors.Official Icon-Icons seller and contributor terms checked 2026-08-07Open Icon-Icons submit page (new tab)Icon-Icons details
7966IndieForge—Link type unknownindie-forge.netStartup directoriesFreeModerateMediumVerified liveCreate a truthful founder profile, showcase your tool, and participate consistently in relevant discussions.Value comes from ongoing genuine participation; one-off self-promotional link drops are inappropriate.2026-08-05 official login/community pagesOpen IndieForge submit page (new tab)IndieForge details
8066Internet Archive95Nofollowarchive.orgSoftware directoriesFreeModerateMediumLive, conditionalArchive an authentic your tool release, manual or research artifact with accurate metadata and official source URL.Upload only material you own or may redistribute; item metadata must describe a real archival object, not an SEO-only page.https://archive.org/create/Open Internet Archive submit page (new tab)Internet Archive details
8166Internet Scout (Scout Report)—Link type unknownwisc.eduPublishing platformsFreeModerateMediumNeeds checkingSuggest the free tools platform as a resource for the Scout Report.University-run curated resource; confirm it still takes suggestions.Added 2026-11-01Open Internet Scout (Scout Report) submit page (new tab)Internet Scout (Scout Report) details
8266ITNEXT60Nofollowitnext.ioGuest posting sitesFreeModerateMediumNeeds checkingRequest writer access for the publication and submit engineering, cloud or DevOps articles via Medium.Only original technical content is accepted; links inside Medium posts are typically nofollow.Added 2026-11-01Open ITNEXT submit page (new tab)ITNEXT details
8366IzzyOnDroid40Link type unknownizzyondroid.comSoftware directoriesFreeModerateMediumLive, conditionalIf your tool releases a suitable open-source Android app, request inclusion with public source, tagged APK releases, Fastlane metadata and website links.Must meet the current inclusion policy, disclose anti-features, avoid silent binary downloads, pass scans and remain maintained; review is strict.2026-08-05 official IzzyOnDroid repository README, inclusion policy and current issue routeOpen IzzyOnDroid submit page (new tab)IzzyOnDroid details
8466JavaScript in Plain English60Nofollowplainenglish.ioGuest posting sitesFreeModerateMediumNeeds checkingApply to become a writer for the In Plain English publications and submit clear programming tutorials.Posts are reviewed for quality and must be tutorials or experience pieces, not ads; most links are nofollow.Added 2026-11-01Open JavaScript in Plain English submit page (new tab)JavaScript in Plain English details
8566JitPack65Link type unknownjitpack.ioDeveloper registriesFreeModerateMediumLive, conditionalRelease a useful your tool JVM or Android library from GitHub with a working build, release tag, README and canonical project links.JitPack builds on demand; a valid Gradle, Maven, SBT or Leiningen build and real reusable library are required.2026-08-05 official JitPack introduction and build guideOpen JitPack submit page (new tab)JitPack details
8666Journal of Open Source Education40Link type unknownjose.theoj.orgSoftware directoriesFreeModerateMediumVerified livePackage a complete computational privacy or accessibility learning module and submit its reusable artifact plus Markdown paper.Artifact must be feature-complete, immediately reusable, openly licensed, documented, and demonstrate teaching value.2026-08-05 — https://openjournals.readthedocs.io/en/jose/submitting.htmlOpen Journal of Open Source Education submit page (new tab)Journal of Open Source Education details
8766JS Bin80Nofollowjsbin.comDesign galleriesFreeModerateMediumVerified liveCreate a focused educational demo for one your tool technique and share the public bin from an authentic profile.Public bins are MIT-licensed and bots are prohibited; publish only compatible original code and create it manually.Official JS Bin getting-started and legal pages checked 2026-08-07Open JS Bin submit page (new tab)JS Bin details
8866JSON Schema Store55Link type unknownschemastore.orgOther opportunitiesFreeModerateMediumLive, conditionalAfter your tool has a stable, commonly used JSON or YAML configuration format, contribute its accurate schema and test fixtures so editors can provide validation, completion, and tooltips.SchemaStore is for known file formats, not marketing pages. The schema must be valid, match real files, include the required catalog metadata and tests, pass CI, and stay synchronized with product changes; submit through the community repository review process.2026-08-03Open JSON Schema Store submit page (new tab)JSON Schema Store details
8966Kagi Small Web70Link type unknownkagi.comBusiness directoriesFreeModerateMediumNeeds checkingSubmit your tool (or its blog/feed where required) under productivity, privacy or developer tools.Human review may apply; use a natural brand title and avoid keyword stuffing. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/kagi-small-webOpen Kagi Small Web submit page (new tab)Kagi Small Web details
9066KDE Store70Link type unknownstore.kde.orgMarketplaces and app storesFreeModerateMediumVerified livePublish a genuinely useful KDE or Plasma asset or integration with accurate project and homepage details.Content must fit a KDE Store category, respect licenses and trademarks, and pass moderation.Official KDE Store upload form checked 2026-07-30Open KDE Store submit page (new tab)KDE Store details
9166Kirby Plugins50Link type unknownplugins.getkirby.comMarketplaces and app storesFreeModerateMediumLive, conditionalBuild an your tool metadata-cleaning, accessibility or privacy plugin and submit its repository and cover image.Needs functional Kirby-specific value, a clear README, licence and maintained Git tags; submission is reviewed.2026-08-05 official Kirby Plugins submission pageOpen Kirby Plugins submit page (new tab)Kirby Plugins details
9266Krew55Link type unknownkrew.sigs.k8s.ioMarketplaces and app storesFreeModerateMediumLive, conditionalBuild a real kubectl your tool privacy or security scanner and submit its release manifest with a canonical project homepage.Plugin must be open source, independently useful, SemVer-released and tested; maintainers review every submission.2026-08-05 official Krew new-plugin developer guideOpen Krew submit page (new tab)Krew details
9366Launch.community—Link type unknownlaunch.communityLaunch platformsFreeModerateMediumVerified liveList only a genuine upcoming your tool major release with date and waitlist information.Requires Google sign-in and moderation; use only for a real upcoming release, not an evergreen listing.2026-08-05 official submit pageOpen Launch.community submit page (new tab)Launch.community details
9466ListYourTool—Link type unknownlistyourtool.comAI tool directoriesFreeModerateMediumVerified liveSubmit a concise your tool profile with its best differentiating utilities.Working public tool required; reviewed before publication.https://www.listyourtool.com/submit-toolOpen ListYourTool submit page (new tab)ListYourTool details
9566LiveJournal90Nofollowlivejournal.comProfiles and entitiesFreeModerateMediumNot submittedCreate a truthful your tool/founder profile or content page and add the website link where allowed.Use a real brand/founder identity; do not create thin duplicate pages. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/livejournalOpen LiveJournal submit page (new tab)LiveJournal details
9666MacUpdate75Nofollowmacupdate.comSoftware directoriesFreeModerateMediumNeeds checkingAdd your Mac app and keep version updates current so users get notified.Mac apps only; listings must link to the official download.Added 2026-11-01Open MacUpdate submit page (new tab)MacUpdate details
9766MajorGeeks80Link type unknownmajorgeeks.comSoftware directoriesFreeModerateMediumNeeds checkingSubmit your Windows utility with a PAD file or download link for editorial review.Every program is tested by staff; bundled toolbars or adware are rejected.Added 2026-11-01Open MajorGeeks submit page (new tab)MajorGeeks details
9866MakeUseOf—Link type unknownmakeuseof.comPublishing platformsFreeModerateMediumNeeds checkingSend a tip about the free no-signup tools for their free-tools articles.Large outlet; tips rarely answered, keep it short.Added 2026-11-01Open MakeUseOf submit page (new tab)MakeUseOf details
9966MentorCruise55Link type unknownmentorcruise.comReview platformsFreeModerateMediumVerified liveHave a qualified founder or senior team member apply as a privacy, accessibility, product, or engineering mentor and add your tool only as truthful experience/personal-site evidence.Applications are manually reviewed, typically within 14 days, and official help says fewer than 10% are accepted; a real headshot, bio, LinkedIn, and relevant expertise are required. The profile must support actual paid mentoring, not link placement. External links are profile UGC with no approval, traffic, or followed-link guarantee.2026-08-03Open MentorCruise submit page (new tab)MentorCruise details
10066MISP Modules60Link type unknownmisp-project.orgMarketplaces and app storesFreeModerateMediumVerified liveBuild a safe MISP import, export, hover, expansion, or workflow module for a legitimate privacy or scam-analysis use case, document it, test it, and submit a PR.Must implement introspection, handler, version metadata, configuration and error handling correctly; never transmit event data without explicit administrator control.Official MISP Modules contribution documentation checked 2026-08-05Open MISP Modules submit page (new tab)MISP Modules details

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.

  1. 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.

  2. 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.

  3. 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.

  4. 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 view

An 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

Common questions

Do backlinks still matter for ranking in 2026?
Links remain one signal among many, and low-quality bulk links do more harm than good. What still works is being listed where your buyers actually look — directories with real traffic, registries your peers use, and launch platforms with engaged audiences. Every entry in this list is a place a human might plausibly find you, which is why they are worth submitting to regardless of link equity.
Which submissions should I do first?
Start with the quick wins filter: free, low effort, and not in the lowest priority band. 208 of the 1,964 entries qualify, and those are the ones where a single form submission gets you a live listing the same week. Launch platforms are worth saving until your product is genuinely ready, because you only get one good attempt at each.
How is the impact score calculated?
It starts from a hand-assigned priority band (do first, high, medium, later), then adjusts for cost and effort. A free, quick opportunity scores above a paid, involved one in the same band, because it is the one you can realistically finish today. The score is a queueing aid, not a measure of domain authority.
Are these links free?
1,628 of the 1,964 entries are free to submit to or offer a free tier that includes a listing. Cost is shown on every row, and the "nothing to pay" filter narrows the list to exactly those.
Which backlink sites are dofollow?
44 entries are known to give a followed link on a normal listing, and more give one only in some placements. The link type is shown on every row and can be filtered. Sites change their link policy without notice, so treat the label as a starting point and check the live page after you are listed. A nofollow link from a busy site still sends visitors and helps search engines discover you.
What does the DA number mean?
It is our estimate of the site's domain authority, a third-party style 0-100 score of how strong a domain's link profile is, rounded to the nearest 5. 1,580 of the 1,964 sites have one. It is useful for comparing sites, not a Google metric, so relevance to your niche still matters more.
How do I get backlinks for a new website?
1. 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. 2. 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. 3. 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. 4. 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.
Will submitting everywhere hurt my site?
Submitting to spam directories can. That is why this list is curated rather than scraped, and why entries carry a status showing whether they have been verified as live. Skip anything that promises hundreds of links for a fee, and prefer places where a real person reviews submissions.