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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

101–200 of 215 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
10166IzzyOnDroid40Link 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
10266Journal 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
10366MacUpdate75Nofollowmacupdate.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
10466MajorGeeks80Link 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
10566SaaSQuiver—Link type unknownsaasquiver.comSoftware directoriesFreeModerateMediumVerified liveSubmit your tool product, website, owner, and category information.Requires accurate owner/contact details and a live SaaS product.https://www.saasquiver.com/saas/submitOpen SaaSQuiver submit page (new tab)SaaSQuiver details
10666Savannah Non-GNU70Link type unknownnongnu.orgSoftware directoriesFreeModerateMediumNot submittedSubmit only a substantive free-software your tool component that runs primarily on free systems and needs authentic Savannah project hosting and collaboration.Strict hosting-policy and licensing review applies; this is not a backlink directory, empty mirror, or marketing page, and unsuitable projects should not apply.2026-08-03Open Savannah Non-GNU submit page (new tab)Savannah Non-GNU details
10766SnapFiles65Link type unknownsnapfiles.comSoftware directoriesFreeModerateMediumNeeds checkingSubmit freeware or shareware for Windows via their author submission page.Programs are tested; anything with adware or malware is declined.Added 2026-11-01Open SnapFiles submit page (new tab)SnapFiles details
10866SoftwareMarket—Link type unknownsoftwaremarket.comSoftware directoriesFreeModerateMediumVerified liveRegister your tool and complete the product, company, and category fields.Submitter must be authorized by the software owner; manual review.https://www.softwaremarket.com/list-your-softwareOpen SoftwareMarket submit page (new tab)SoftwareMarket details
10966switching.software50Link type unknownswitching.softwareSoftware directoriesFreeModerateMediumVerified liveSuggest one mature your tool utility through the official Codeberg issue path only if it is an easy-to-use, privacy-respecting replacement for a clearly identified invasive service.The project must be meaningfully more privacy-conscious and ethical while remaining usable by nontechnical people; many listed alternatives are free/open source. Community review applies and inclusion is not guaranteed.2026-08-03Open switching.software submit page (new tab)switching.software details
11066Teach Access50Link type unknownteachaccess.orgSoftware directoriesFreeModerateMediumVerified liveContribute a substantive accessibility role template, translation or toolkit improvement with useful source attribution.Must fit the toolkit’s structure and open-source purpose; contextual attribution only, not a promotional entry.2026-08-05 — https://www.teachaccess.org/resources/accessibility-skills-hiring-toolkit/Open Teach Access submit page (new tab)Teach Access details
11166TechSpot Downloads90Nofollowtechspot.comSoftware directoriesFreeModerateMediumNeeds checkingAsk the TechSpot team to add your app to the downloads section, with version notes.Editorial picks only; they favour well-known or genuinely useful tools.Added 2026-11-01Open TechSpot Downloads submit page (new tab)TechSpot Downloads details
11266Trello Power-Up Directory95Nofollowtrello.comSoftware directoriesFreeModerateMediumLive, conditionalBuild an your tool Trello Power-Up, register it, sign the developer agreement, and submit it.Requires polished Trello-specific functionality, reliable hosting, privacy/support details, and review of two or more weeks.https://developer.atlassian.com/cloud/trello/guides/power-ups/submitting-your-power-up/Open Trello Power-Up Directory submit page (new tab)Trello Power-Up Directory details
11365AppInsight—Link type unknownappinsight.co.ukSoftware directoriesFree + paid tierQuickMediumVerified liveRequest a free listing with your tool logo, name, slogan, short description, website and best-fit category.Human-curated and limited to one category on the free tier; timing is not guaranteed and richer links/features require an upgrade.2026-08-03 • https://www.appinsight.co.uk/sellers/free-listingOpen AppInsight submit page (new tab)AppInsight details
11465BIII BioImage Informatics Index40Link type unknownbiii.euSoftware directoriesFree + paid tierQuickMediumVerified liveRegister a real bioimage privacy, de-identification, or analysis tool with accurate scientific functions, documentation, and maintainers.Tool must genuinely solve a bioimage-analysis problem; registration and community curation apply.Official BIII about and contribution information checked 2026-08-05Open BIII BioImage Informatics Index submit page (new tab)BIII BioImage Informatics Index details
11565DevApp Showcase—Link type unknowndevappshowcase.comSoftware directoriesFree + paid tierQuickMediumVerified liveList your tool with live URL, icon, screenshots, category and an optional repository/demo video.Submit a functional app with original assets; paid promotion is optional, not required.2026-08-03Open DevApp Showcase submit page (new tab)DevApp Showcase details
11665OpenSaaS Directory—Link type unknownopensaas.directorySoftware directoriesFree + paid tierQuickMediumVerified liveSubmit a public your tool open-source repository and product description after a reusable component is released.Requires a genuine open-source SaaS project; do not submit the proprietary site as open source.2026-08-03Open OpenSaaS Directory submit page (new tab)OpenSaaS Directory details
11765Packagecloud55Link type unknownpackagecloud.ioSoftware directoriesFree + paid tierQuickMediumLive, conditionalCreate a public your tool repository and distribute real signed DEB, RPM, npm, Maven, Helm or other supported packages with accurate metadata.Repository must serve genuine packages; check current account limits before uploading and never create an empty profile solely for a link.2026-08-05 official packagecloud documentation and APIOpen Packagecloud submit page (new tab)Packagecloud details
11865selfh.st/apps45Link type unknownselfh.stSoftware directoriesFree + paid tierQuickMediumLive, conditionalContact the curator with a maintained self-hostable your tool edition, repository, documentation and project website.Requires a genuine self-hosted or companion application; paid placement should be clearly treated as sponsorship.2026-08-05Open selfh.st/apps submit page (new tab)selfh.st/apps details
11965SoftwareSuggest70Sometimes dofollowsoftwaresuggest.comSoftware directoriesFree + paid tierQuickMediumNot submittedList software in relevant category.India-friendly B2B software directory.2026-07-30Open SoftwareSuggest submit page (new tab)SoftwareSuggest details
12065SourceForge Software95Nofollowsourceforge.netSoftware directoriesFree + paid tierQuickMediumNot submittedCreate software listing/vendor profile.Good for software/tools discovery.2026-07-30Open SourceForge Software submit page (new tab)SourceForge Software details
12165Tool Commons—Link type unknowntoolcommons.orgSoftware directoriesFree + paid tierQuickMediumVerified liveRelease one standalone your tool utility as open source, ad-free and local-first, then submit via GitHub.Strictly requires no login, no ads/tracking, static hosting and a single-purpose open-source tool.2026-08-03Open Tool Commons submit page (new tab)Tool Commons details
12265Voice Tools Directory—Link type unknownvoice-tools.comSoftware directoriesFree + paid tierQuickMediumLive, conditionalSubmit a maintained your tool voice/audio utility with licensing and a clear creator or voice-AI use case.Voice relevance and active maintenance are mandatory; generic AI/toolbox submissions are excluded.2026-08-03Open Voice Tools Directory submit page (new tab)Voice Tools Directory details
12365Yo.directory—Link type unknownyo.directorySoftware directoriesFree + paid tierQuickMediumNot submittedSubmit your tool to product-launch/tools category.Use original description; avoid duplicated copy.2026-07-30Open Yo.directory submit page (new tab)Yo.directory details
124641000 Tools—Link type unknown1000.toolsSoftware directoriesNot statedQuickMediumNeeds checkingSubmit the PDF and image tool suite.Curated tool directory; verify submit path.Added 2026-11-01Open 1000 Tools submit page (new tab)1000 Tools details
12564Dofollow.Tools35Dofollowdofollow.toolsSoftware directoriesNot statedQuickMediumNeeds checkingSubmit your tool for dofollow tools directory.Check quality/spam risk before using.2026-07-30Open Dofollow.Tools submit page (new tab)Dofollow.Tools details
12664Insanely Cool Tools—Link type unknowninsanelycooltools.comSoftware directoriesNot statedQuickMediumNeeds checkingSubmit the step counter and PDF tools as standout free utilities.Curated with a newsletter; selective.Added 2026-11-01Open Insanely Cool Tools submit page (new tab)Insanely Cool Tools details
12764Photo Tool Finder—Link type unknownphototoolfinder.comSoftware directoriesNot statedQuickMediumNeeds checkingSubmit the image compressor, resizer and converter tools.Image-tool niche directory, highly relevant.Added 2026-11-01Open Photo Tool Finder submit page (new tab)Photo Tool Finder details
12864SimilarLabs—Link type unknownsimilarlabs.comSoftware directoriesNot statedQuickMediumNeeds checkingList AltFTool so it appears as an alternative to other online tool sites.Alternatives-style pages; find the submit option on site.Added 2026-11-01Open SimilarLabs submit page (new tab)SimilarLabs details
12963ailib.ru25Link type unknownailib.ruSoftware directoriesFreeInvolvedMediumNeeds checkingSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Listing link is currently reported nofollow.2026-07-30 • https://www.submission.directory/site/ailib-ruOpen ailib.ru submit page (new tab)ailib.ru details
13063Alternative.me55Link type unknownalternative.meSoftware directoriesFree + paid tierModerateMediumNeeds checkingSubmit/claim software alternative listing if available.Different from AlternativeTo; verify flow.2026-07-30Open Alternative.me submit page (new tab)Alternative.me details
13163CloudFindr—Link type unknowncloudfindr.coSoftware directoriesFreeInvolvedMediumNot submittedSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Link treatment varies by tier/page.2026-07-30 • https://www.submission.directory/site/cloudfindrOpen CloudFindr submit page (new tab)CloudFindr details
13263Crozdesk60Link type unknowncrozdesk.comSoftware directoriesFree + paid tierModerateMediumNot submittedCreate vendor account and submit software.B2B SaaS categories; reviews matter.2026-07-30Open Crozdesk submit page (new tab)Crozdesk details
13363DevTool Center—Link type unknowndevtool.centerSoftware directoriesFree + paid tierModerateMediumLive, conditionalSubmit a maintained your tool developer tool with concise description, pricing and relevant tags.General consumer utilities are out of scope; documentation and active maintenance are required.2026-08-03Open DevTool Center submit page (new tab)DevTool Center details
13463Figshare90Nofollowfigshare.comSoftware directoriesFree + paid tierModerateMediumVerified livePublish a genuine your tool benchmark, dataset, software artifact, poster, or methods report with the canonical project URL in metadata.Academic/research output only; public items receive persistent DOIs and should not be deleted or used as promotional shells.https://info.figshare.com/user-guide/what-is-figshare/Open Figshare submit page (new tab)Figshare details
13563GoodFirms75Sometimes dofollowgoodfirms.coSoftware directoriesFree + paid tierModerateMediumNot submittedCreate company/software listing.Works better with company details and reviews.2026-07-30Open GoodFirms submit page (new tab)GoodFirms details
13663IABOXTOOL—Link type unknowniaboxtool.esSoftware directoriesFreeInvolvedMediumNeeds checkingSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/iaboxtoolOpen IABOXTOOL submit page (new tab)IABOXTOOL details
13763KI-Suche—Link type unknownki-suche.ioSoftware directoriesFreeInvolvedMediumNeeds checkingSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/ki-sucheOpen KI-Suche submit page (new tab)KI-Suche details
13863PhysioNet75Link type unknownphysionet.orgSoftware directoriesFreeInvolvedMediumVerified livePublish a clinical-data de-identification or quality tool with source, installation steps, dependencies, documentation, and tests.Must support credible biomedical research, use an accepted open-source license, and pass editorial review.Official PhysioNet publishing guide checked 2026-08-05Open PhysioNet submit page (new tab)PhysioNet details
13963Resource.fyi25Link type unknownresource.fyiSoftware directoriesFreeInvolvedMediumNeeds checkingSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/resource-fyiOpen Resource.fyi submit page (new tab)Resource.fyi details
14063Share Fast—Link type unknownsharefast.coSoftware directoriesFreeInvolvedMediumNot submittedCreate an account and submit your tool with a precise category, readable summary, official URL and evidence of a working product.Login required; a free route requires reciprocal-link verification; paid and highlighted placements should be treated as promotional, not editorial endorsement.2026-08-03Open Share Fast submit page (new tab)Share Fast details
14163SoftwareWorld55Link type unknownsoftwareworld.coSoftware directoriesFree + paid tierModerateMediumNot submittedSubmit your tool if B2B/productivity categories fit.Use business/productivity angle.2026-07-30Open SoftwareWorld submit page (new tab)SoftwareWorld details
14263TechSuggest—Link type unknowntechsuggest.inSoftware directoriesFree + paid tierModerateMediumVerified liveCreate an your tool vendor account targeting Indian software buyers.Vendor verification required; best suited to B2B software.https://techsuggest.in/vendor/benefitsOpen TechSuggest submit page (new tab)TechSuggest details
14363Tekpon55Link type unknowntekpon.comSoftware directoriesFree + paid tierModerateMediumNot submittedSubmit your tool as productivity/software platform.Review/listing quality matters.2026-07-30Open Tekpon submit page (new tab)Tekpon details
14463ToolShelf—Link type unknowntoolshelf.devSoftware directoriesFree + paid tierModerateMediumLive, conditionalSubmit a focused your tool developer utility with repository, documentation and supported platforms.Best for maintained developer tools; quality review and GitHub activity signals apply.2026-08-03Open ToolShelf submit page (new tab)ToolShelf details
14563TrustRadius80Nofollowtrustradius.comSoftware directoriesFree + paid tierModerateMediumNot submittedCreate vendor profile and collect authentic reviews.No fake reviews; verification strict.2026-07-30Open TrustRadius submit page (new tab)TrustRadius details
14663VerySaaS—Link type unknownverysaas.ioSoftware directoriesFreeInvolvedMediumNeeds checkingSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/verysaasOpen VerySaaS submit page (new tab)VerySaaS details
14763Zuctools—Link type unknownzuctools.siteSoftware directoriesFree + paid tierModerateMediumVerified liveUse the Submit Tool flow with your tool URL, pricing, categories, original description and icon.Submitted details may be edited for clarity; verify the live submit page before sending.2026-08-03Open Zuctools submit page (new tab)Zuctools details
14862SaaS Podium—Link type unknownsaaspodium.comSoftware directoriesNot statedModerateMediumVerified liveSubmit your tool with logo, pricing model, concise tagline and a unique product description.All submissions are reviewed; verify current terms before submitting and do not assume link attributes.2026-08-03Open SaaS Podium submit page (new tab)SaaS Podium details
14960AI NavHub—Link type unknownainavhub.comSoftware directoriesFree + paid tierInvolvedMediumNot submittedSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Listing link is currently reported nofollow.2026-07-30 • https://www.submission.directory/site/ai-navhubOpen AI NavHub submit page (new tab)AI NavHub details
15060Awesome Indie—Link type unknownawesomeindie.comSoftware directoriesFree + paid tierInvolvedMediumVerified liveSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/awesome-indieOpen Awesome Indie submit page (new tab)Awesome Indie details
15160DevSuite—Link type unknowndevsuite.coSoftware directoriesFree + paid tierInvolvedMediumNot submittedSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/devsuiteOpen DevSuite submit page (new tab)DevSuite details
15260FinancesOnline75Sometimes dofollowfinancesonline.comSoftware directoriesFree + paid tierInvolvedMediumNot submittedSubmit product for review/listing.Editorial review; prepare screenshots/features.2026-07-30Open FinancesOnline submit page (new tab)FinancesOnline details
15360FindersList—Link type unknownfinderslist.comSoftware directoriesFree + paid tierInvolvedMediumVerified liveSubmit your tool to the best-fit software directory with truthful pricing and unique copy.Editorial review applies; avoid irrelevant categories and affiliate-style claims.2026-08-03Open FindersList submit page (new tab)FindersList details
15460FiveTaco—Link type unknownfivetaco.comSoftware directoriesFree + paid tierInvolvedMediumNot submittedSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/fivetacoOpen FiveTaco submit page (new tab)FiveTaco details
15560Lachief—Link type unknownlachief.ioSoftware directoriesFree + paid tierInvolvedMediumNot submittedSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/lachiefOpen Lachief submit page (new tab)Lachief details
15660LLM Relevance—Link type unknownllmrelevance.comSoftware directoriesFree + paid tierInvolvedMediumNot submittedSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Link treatment varies by tier/page.2026-07-30 • https://www.submission.directory/site/llm-relevanceOpen LLM Relevance submit page (new tab)LLM Relevance details
15760Noteable AI—Link type unknownnoteableai.comSoftware directoriesFree + paid tierInvolvedMediumNot submittedSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/noteable-aiOpen Noteable AI submit page (new tab)Noteable AI details
15860Powerusers AI30Link type unknownpowerusers.aiSoftware directoriesFree + paid tierInvolvedMediumNot submittedSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Listing link is currently reported nofollow.2026-07-30 • https://www.submission.directory/site/powerusers-aiOpen Powerusers AI submit page (new tab)Powerusers AI details
15960Robin Good Tools50Link type unknowntools.robingood.comSoftware directoriesFree + paid tierInvolvedMediumNeeds checkingSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/robin-good-toolsOpen Robin Good Tools submit page (new tab)Robin Good Tools details
16060SaaSworthy60Sometimes dofollowsaasworthy.comSoftware directoriesFree + paid tierInvolvedMediumNeeds checkingAdd SaaS/product profile.May require account/editorial approval.2026-07-30Open SaaSworthy submit page (new tab)SaaSworthy details
16160Seofai—Link type unknownseofai.comSoftware directoriesFree + paid tierInvolvedMediumNot submittedSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Listing link is currently reported nofollow.2026-07-30 • https://www.submission.directory/site/seofaiOpen Seofai submit page (new tab)Seofai details
16260ThatsMyAI—Link type unknownthatsmy.aiSoftware directoriesFree + paid tierInvolvedMediumVerified liveSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Listing link is currently reported nofollow.2026-07-30 • https://www.submission.directory/site/thatsmyaiOpen ThatsMyAI submit page (new tab)ThatsMyAI details
16360ToolAI—Link type unknowntoolai.ioSoftware directoriesFree + paid tierInvolvedMediumNot submittedSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Listing link is currently reported nofollow.2026-07-30 • https://www.submission.directory/site/toolaiOpen ToolAI submit page (new tab)ToolAI details
16459SaaS Avenue—Link type unknownsaasavenue.comSoftware directoriesNot statedInvolvedMediumVerified liveUse the site's Submit Your Product flow for your tool.Listing is subject to editorial review; submission does not guarantee publication.https://saasavenue.com/Open SaaS Avenue submit page (new tab)SaaS Avenue details
16556Journal of Open Research Software55Link type unknownopenresearchsoftware.metajnl.comSoftware directoriesPaidModerateMediumVerified liveOpen-source a reusable research-focused your tool component, archive it with a persistent identifier, and submit a software metapaper with project/code links.Software must be openly licensed, public, usable, documented, archived and relevant to research; metapaper and software undergo peer review.2026-08-05 — https://openresearchsoftware.metajnl.com/about/submissionsOpen Journal of Open Research Software submit page (new tab)Journal of Open Research Software details
16653Journal of Statistical Software70Link type unknownjstatsoft.orgSoftware directoriesPaidInvolvedMediumVerified liveDevelop an open statistical/privacy-analysis component, then submit a reproducible English LaTeX software paper linking its code and your tool project page.Only statistical-computing software with publishable scholarly value; authors must supply software/replication material and handle strict formatting and peer review.2026-08-05 — https://www.jstatsoft.org/authorsOpen Journal of Statistical Software submit page (new tab)Journal of Statistical Software details
16753RO-Crate Community Blog40Link type unknownresearchobject.orgSoftware directoriesPaidInvolvedMediumVerified liveBuild a genuine RO-Crate validator or privacy linter and submit a technical developer article using the official blog template.Article must concern practical RO-Crate use or tooling; editorial acceptance is required and product-only promotion is unsuitable.Official RO-Crate blog contribution announcement checked 2026-08-05Open RO-Crate Community Blog submit page (new tab)RO-Crate Community Blog details
16848FreewareFiles60Link type unknownfreewarefiles.comSoftware directoriesFreeQuickLaterNeeds checkingSubmit your free Windows program through the author submission form.Software must be free or freemium and free of malware.Added 2026-11-01Open FreewareFiles submit page (new tab)FreewareFiles details
16948MacMenuBar40Sometimes dofollowmacmenubar.comSoftware directoriesFreeQuickLaterNeeds checkingSubmit your macOS menu bar app with a short description and screenshot.Only apps that live in the menu bar are accepted.Added 2026-11-01Open MacMenuBar submit page (new tab)MacMenuBar details
17048Portable Freeware50Sometimes dofollowportablefreeware.comSoftware directoriesFreeQuickLaterNeeds checkingSuggest your app if it runs without installation and is free.Must be genuinely portable and freeware; community moderates entries.Added 2026-11-01Open Portable Freeware submit page (new tab)Portable Freeware details
17148Software Informer75Sometimes dofollowsoftware.informer.comSoftware directoriesFreeQuickLaterNeeds checkingAdd or claim your program and keep version info and description up to date.Listings are auto-checked; inaccurate entries are removed.Added 2026-11-01Open Software Informer submit page (new tab)Software Informer details
17246Astrophysics Source Code Library55Link type unknownascl.netSoftware directoriesFreeModerateLaterVerified liveSubmit an your tool-related astronomy utility only after it has been used in research submitted to or published by a refereed journal.Strict astronomy or astrophysics scope; code must be accessible, research-used, complete, moderated, and supported by a paper reference.2026-08-05 — https://ascl.net/code/submitOpen Astrophysics Source Code Library submit page (new tab)Astrophysics Source Code Library details
17346Business-Software.com55Link type unknownbusiness-software.comSoftware directoriesFreeModerateLaterNot 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/business-software-comOpen Business-Software.com submit page (new tab)Business-Software.com details
17446CSDMS Model Repository90Link type unknowncsdms.colorado.eduSoftware directoriesFreeModerateLaterVerified liveOpen-source a relevant geoscience model or component, complete the model questionnaire, and provide its code archive for CSDMS testing.Must be an actual Earth-surface or geoscience model; staff may compile and run it, and BMI compatibility is encouraged.Official CSDMS contribute-model guide checked 2026-08-05Open CSDMS Model Repository submit page (new tab)CSDMS Model Repository details
17546ITQlick45Link type unknownitqlick.comSoftware directoriesFreeModerateLaterNeeds checkingSubmit your SaaS product for a profile with pricing and feature data.Info must be accurate; marketing copy gets rewritten.Added 2026-11-01Open ITQlick submit page (new tab)ITQlick details
17646LO4D65Link type unknownlo4d.comSoftware directoriesFreeModerateLaterNeeds checkingSubmit your Windows app for review and malware testing.Programs failing their antivirus checks are not listed.Added 2026-11-01Open LO4D submit page (new tab)LO4D details
17746Neowin Software80Sometimes dofollowneowin.netSoftware directoriesFreeModerateLaterNeeds checkingSend release notes for notable versions of your desktop software to their software news section.Editors pick releases; minor updates are often skipped.Added 2026-11-01Open Neowin Software submit page (new tab)Neowin Software details
17846OpenAlternative45Dofollowopenalternative.coSoftware directoriesFreeModerateLaterNot 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/openalternativeOpen OpenAlternative submit page (new tab)OpenAlternative details
17946OpenEBench40Link type unknownopenebench.bsc.esSoftware directoriesFreeModerateLaterVerified liveOrganize a rigorous life-science privacy-tool benchmark or participate with an eligible your tool method and publish validated results.Requires a scientific community, formal challenge metadata, reference data, containerized metrics workflow, assigned role, and OpenEBench support review.2026-08-05 — https://openebench.readthedocs.io/en/latest/how_to/4_manage_events.htmlOpen OpenEBench submit page (new tab)OpenEBench details
18046pyOpenSci45Link type unknownpyopensci.orgSoftware directoriesFreeModerateLaterVerified liveSubmit a mature scientific Python package related to an your tool privacy or accessibility workflow for public review and listing.Must support open science, have sustained public development, packaging, tests, docs, human-reviewed code, and a maintenance commitment.2026-08-05 — https://www.pyopensci.org/software-peer-review/our-process/policies.htmlOpen pyOpenSci submit page (new tab)pyOpenSci details
18146rOpenSci70Link type unknownropensci.orgSoftware directoriesFreeModerateLaterVerified liveIf your tool produces a research-grade R package, submit a presubmission inquiry and the package for open review.Package must fit rOpenSci scope, avoid overlap, meet testing and lifecycle policies, and remain actively maintained.2026-08-05 — https://devguide.ropensci.org/softwarereview_author.htmlOpen rOpenSci submit page (new tab)rOpenSci details
18246ROS Index70Link type unknownindex.ros.orgSoftware directoriesFreeModerateLaterVerified liveBuild a real ROS package for an your tool robotics/privacy/safety workflow, release it through rosdistro and expose maintained README, documentation and source links in ROS Index.Must provide genuine ROS functionality and follow repository, metadata and release conventions; a branded launcher without robot-facing value will be rejected.2026-08-05Open ROS Index submit page (new tab)ROS Index details
18346SoftwareConnect45Link type unknownsoftwareconnect.comSoftware directoriesFreeModerateLaterNeeds checkingRequest a vendor listing for your business software and supply feature details.B2B products only; pricing and features are checked.Added 2026-11-01Open SoftwareConnect submit page (new tab)SoftwareConnect details
18445Clutch90Sometimes dofollowclutch.coSoftware directoriesFree + paid tierQuickLaterNot submittedCreate company profile if your tool/Anslation has service angle.Less fit for pure tool site unless company profile.2026-07-30Open Clutch submit page (new tab)Clutch details
18545Serchen50Link type unknownserchen.comSoftware directoriesFree + paid tierQuickLaterNot submittedCreate company listing and product profile.Check category fit before spending time.2026-07-30Open Serchen submit page (new tab)Serchen details
18645SubmitMatic—Link type unknownsubmitmatic.comSoftware directoriesFree + paid tierQuickLaterNeeds checkingUse free launch/listing tools to prep copy and track submissions.Research/operations support.2026-07-30Open SubmitMatic submit page (new tab)SubmitMatic details
18744Cuspera50Link type unknowncuspera.comSoftware directoriesNot statedQuickLaterNeeds checkingClaim/request listing if eligible.No obvious direct form; use contact if needed.2026-07-30Open Cuspera submit page (new tab)Cuspera details
18844ToolThump—Link type unknowntoolthump.comSoftware directoriesNot statedQuickLaterNeeds checkingStudy accepted multi-tool positioning; possible outreach/partnership.Research/comparable, not direct submission.2026-07-30Open ToolThump submit page (new tab)ToolThump details
18943AI Top Hub—Link type unknownaitophub.comSoftware directoriesFreeInvolvedLaterNeeds checkingSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Listing link is currently reported nofollow.2026-07-30 • https://www.submission.directory/site/ai-top-hubOpen AI Top Hub submit page (new tab)AI Top Hub details
19043browse.sh—Link type unknownbrowse.shSoftware directoriesFreeInvolvedLaterNeeds checkingSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/browse-shOpen browse.sh submit page (new tab)browse.sh details
19143CompareCamp55Link type unknowncomparecamp.comSoftware directoriesFreeInvolvedLaterNot submittedPitch your tool for software review/listing.Contact/pitch, not instant backlink.2026-07-30Open CompareCamp submit page (new tab)CompareCamp details
19243DesignRush75Sometimes dofollowdesignrush.comSoftware directoriesFree + paid tierModerateLaterNeeds checkingPitch/list company/tool if category fits.More agency-oriented; verify fit.2026-07-30Open DesignRush submit page (new tab)DesignRush details
19343FeedMyApp30Link type unknownfeedmyapp.comSoftware directoriesFree + paid tierModerateLaterNeeds checkingSubmit your tool as web app/tool collection.Older app directory; verify active.2026-07-30Open FeedMyApp submit page (new tab)FeedMyApp details
19443IndieHustles—Link type unknownindiehustles.comSoftware directoriesFreeInvolvedLaterNot submittedSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Dofollow is reported but recheck after approval.2026-07-30 • https://www.submission.directory/site/indiehustlesOpen IndieHustles submit page (new tab)IndieHustles details
19543Journal of Open Source Software60Link type unknownjoss.theoj.orgSoftware directoriesFreeInvolvedLaterVerified liveSubmit a qualifying open your tool research-software component and short software paper after it has mature public development history.Requires OSI licence, public source and issues, tests, documentation, research use, contributor authorship, and editorial review.2026-08-05 — https://joss.readthedocs.io/en/latest/submitting.htmlOpen Journal of Open Source Software submit page (new tab)Journal of Open Source Software details
19643NITRC55Link type unknownnitrc.orgSoftware directoriesFree + paid tierModerateLaterVerified liveRegister an actual neuroimaging privacy, quality-control, or data-processing tool through NITRC's resource workflow.Must have substantive neuroimaging or neuroscience relevance; account registration and moderation apply.Official NITRC project and registered-resource pages checked 2026-08-05Open NITRC submit page (new tab)NITRC details
19743Noxilo—Link type unknownnoxilo.comSoftware directoriesFreeInvolvedLaterNeeds checkingSubmit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.Accurate tool details required; editorial approval controls publication. Listing link is currently reported nofollow.2026-07-30 • https://www.submission.directory/site/noxiloOpen Noxilo submit page (new tab)Noxilo details
19843PortableApps.com75Link type unknownportableapps.comSoftware directoriesFreeInvolvedLaterNeeds checkingPackage your open-source tool in their portable format and propose it in the development forum.Apps must meet their packaging spec and licensing rules.Added 2026-11-01Open PortableApps.com submit page (new tab)PortableApps.com details
19943Remote Tools40Link type unknownremote.toolsSoftware directoriesFree + paid tierModerateLaterNeeds checkingSubmit your tool as remote/productivity tool if form active.Verify activity and category fit.2026-07-30Open Remote Tools submit page (new tab)Remote Tools details
20043SaaS Landing Page45Dofollowsaaslandingpage.comSoftware directoriesFree + paid tierModerateLaterNeeds checkingSubmit your tool/SaaS-style landing page.SaaS-focused design gallery.2026-07-30Open SaaS Landing Page submit page (new tab)SaaS Landing Page 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.