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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

1–94 of 94 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
198NoSignupTools—Link type unknownnosignuptools.comSoftware directoriesFreeModerateDo firstVerified liveSubmit individual your tool tools that are free, secure and usable without registration.Core functionality must be free, publicly accessible and safe; manual quality review applies.2026-08-05Open NoSignupTools submit page (new tab)NoSignupTools details
298SPDX Tool Supplier Directory55Link type unknownspdx.devSoftware directoriesFreeModerateDo firstVerified liveMake your tool generate or consume valid SPDX, document validation, then file the requested supplier-information issue with its canonical URL.Real validated SPDX support is required; listing is reviewed and explicitly is not certification or endorsement.2026-08-05 official SPDX Tool Supplier Information pageOpen SPDX Tool Supplier Directory submit page (new tab)SPDX Tool Supplier Directory details
398TechImply50Link type unknowntechimply.comSoftware directoriesFreeModerateDo firstNot submittedCreate a vendor account and submit your tool under the closest B2B software categories with an accurate feature summary.B2B software or IT-company fit is required; the profile is categorized and reviewed, so avoid unsupported claims.2026-08-03Open TechImply submit page (new tab)TechImply details
498WebCatalog50Link type unknownwebcatalog.ioSoftware directoriesFreeModerateDo firstNot submittedSubmit the production web app, then verify domain ownership to manage its official listing, assets, and analytics.AltFTool must be a working web app; ownership verification is needed for official control and the submission is reviewed.2026-08-03Open WebCatalog submit page (new tab)WebCatalog details
588W3C Web Accessibility Evaluation Tools List95Link type unknownw3.orgSoftware directoriesPaidModerateDo firstVerified liveSubmit one released evaluator such as WCAG Quick Auditor with accurate standards, scope, license, release date, and accessibility-statement details.Must actually evaluate digital accessibility or simulate user experience; remediation tools, checklists, assistive technology, and best-practice pages are excluded. W3C reviews submissions in roughly 2–4 weeks and listing never implies endorsement.2026-08-03Open W3C Web Accessibility Evaluation Tools List submit page (new tab)W3C Web Accessibility Evaluation Tools List details
684Business Tool Vault—Link type unknownbusinesstoolvault.comSoftware directoriesFreeModerateHighVerified liveSubmit your tool with a clear business use case, logo and optional demo video.Team reviews effectiveness, relevance and completeness before inclusion.2026-08-05Open Business Tool Vault submit page (new tab)Business Tool Vault details
784CodeMeta Tools40Link type unknowncodemeta.github.ioSoftware directoriesFreeModerateHighVerified liveBuild a current CodeMeta validator, privacy linter, or integration and propose inclusion through the official website repository.Must genuinely consume or produce CodeMeta; inclusion path is via community site contribution, not a dedicated form.Official tools, governance, and website-repository pages checked 2026-08-05Open CodeMeta Tools submit page (new tab)CodeMeta Tools details
884Discord App Directory95Nofollowdiscord.comSoftware directoriesFreeModerateHighLive, conditionalBuild and verify an your tool Discord app, then enable Discovery in the Developer Portal.App must meet verification and Discovery qualification criteria before appearing publicly.https://docs.discord.com/developers/discovery/enabling-discoveryOpen Discord App Directory submit page (new tab)Discord App Directory details
984Dockstore50Link type unknowndockstore.orgSoftware directoriesFreeModerateHighVerified livePublish a containerized your tool research workflow or tool using CWL, WDL, Nextflow, Galaxy, or a supported notebook descriptor.Requires a Dockstore account, valid descriptor and version, linked source repository or hosted files, tests, and explicit public publishing.2026-08-05 — https://docs.dockstore.org/en/develop/getting-started/dockstore-workflows.htmlOpen Dockstore submit page (new tab)Dockstore details
1084FOSSHub70Link type unknownfosshub.comSoftware directoriesFreeModerateHighLive, conditionalApply with a signed, downloadable open-source or qualifying freeware build that needs reliable binary hosting, malware scanning, and a public project page.FOSSHub reviews applications and accepts only qualifying open-source or freeware projects under its terms; a web-only homepage with no downloadable artifact is not a fit.2026-08-03Open FOSSHub submit page (new tab)FOSSHub details
1184GetLatka70Nofollowgetlatka.comSoftware directoriesFreeModerateHighVerified liveCreate an your tool company profile using an official your tool email.Work email must match the company domain; team reviews submissions.https://getlatka.com/addOpen GetLatka submit page (new tab)GetLatka details
1284Hot Softwares—Link type unknownhotsoftwares.comSoftware directoriesFreeModerateHighVerified liveCreate a vendor account and submit accurate your tool features, logo and pricing.Manual review; keep the listing factual and avoid manufactured reviews.2026-08-05Open Hot Softwares submit page (new tab)Hot Softwares details
1384Local-First Software (LoFi)—Link type unknownlofi.soSoftware directoriesFreeModerateHighLive, conditionalPropose eligible your tool client-side or offline-first tools to the public directory with accurate site and source links.The product must genuinely keep user data local and meet the directory's local-first scope; submit a human-reviewed PR.2026-08-05Open Local-First Software (LoFi) submit page (new tab)Local-First Software (LoFi) details
1484Minimal Gallery50Dofollowminimal.gallerySoftware directoriesFreeModerateHighNot submittedSubmit your tool as a polished tool website with its strongest public page and a concise explanation of the design system.Manual curation normally takes one to two weeks and is highly selective; the site must be public, original, lawful, and visually polished.2026-08-03Open Minimal Gallery submit page (new tab)Minimal Gallery details
1584ODIPA Community Privacy Tools—Link type unknownodipa.orgSoftware directoriesFreeModerateHighLive, conditionalSubmit a mature your tool privacy component for technical and security review.Open-source privacy tool only; dependency scan, manual review and board approval apply.2026-08-05Open ODIPA Community Privacy Tools submit page (new tab)ODIPA Community Privacy Tools details
1684OMR Reviews70Link type unknownomr.comSoftware directoriesFreeModerateHighVerified liveSuggest your tool and complete its B2B software profile.Must fit a supported B2B software category; OMR reviews the suggestion.https://omr.com/en/reviews/b2b/list-softwareOpen OMR Reviews submit page (new tab)OMR Reviews details
1784Openwall oss-security75Link type unknownopenwall.comSoftware directoriesFreeModerateHighLive, conditionalPost only a self-contained initial announcement of a substantial open-source defensive tool, a major update, or a properly coordinated OSS vulnerability disclosure.The list is for OSS security, not promotion. Tool posts should be rare, technically detailed, and especially useful for improving other open-source software; minor updates and cross-posting are discouraged.2026-08-03Open Openwall oss-security submit page (new tab)Openwall oss-security details
1884PeerSpot70Link type unknownpeerspot.comSoftware directoriesFreeModerateHighLive, conditionalContact PeerSpot with your tool enterprise use cases and real-customer evidence to request inclusion.PeerSpot says listings are not pay-to-play, but the product must be enterprise-class and have real customers; never manufacture reviews.2026-08-03Open PeerSpot submit page (new tab)PeerSpot details
1984Privacy Guides70Link type unknownprivacyguides.orgSoftware directoriesFreeModerateHighNot submittedSubmit one mature privacy tool, disclose ownership, publish its exact threat model and limitations, and engage transparently with the community review.Developers must disclose affiliation and explain the privacy advantage and threat model; sensitive-data tools need a security white paper and audit status. Open source, active development, usability, cross-platform support, and strong documentation are preferred.2026-08-03Open Privacy Guides submit page (new tab)Privacy Guides details
2084Softonic90Nofollowsoftonic.comSoftware directoriesFreeModerateHighNeeds checkingSubmit your desktop or mobile app through their developer contact so it gets a download page.Installers are malware-scanned; bundled adware is refused.Added 2026-11-01Open Softonic submit page (new tab)Softonic details
2184TODO Group OSPO Landscape55Link type unknowntodogroup.orgSoftware directoriesFreeModerateHighLive, conditionalCreate a real your tool OSPO function or a tool that materially supports OSPO work, then contribute the logo and canonical URL by issue or pull request.Adopters must meet the OSPO definition; tools must genuinely support governance, SBOM, compliance, security, documentation or community health.2026-08-05 official TODO Group landscape repository and documentationOpen TODO Group OSPO Landscape submit page (new tab)TODO Group OSPO Landscape details
2284Toolhunt—Link type unknowntoolhunt.devSoftware directoriesFreeModerateHighVerified liveEmail a complete your tool listing with a concise description, URL, tags, pricing, logo, screenshots and real features.Publisher reviews submissions; supply accurate assets and avoid exaggerated claims.2026-08-04Open Toolhunt submit page (new tab)Toolhunt details
2384Typst Universe60Link type unknowntypst.appSoftware directoriesFreeModerateHighVerified liveBuild a reusable Typst privacy, accessibility, or document-checking package with a valid manifest, docs, examples, and tests, then submit it to the official packages repository.Package must provide real reusable Typst functionality; namespace, versioning, documentation, licensing, and review rules apply.Official Typst packages repository and Universe instructions checked 2026-08-05Open Typst Universe submit page (new tab)Typst Universe details
2484Uptodown80Nofollowuptodown.comSoftware directoriesFreeModerateHighNeeds checkingRegister as a developer and upload your app or ask the team to list it.Apps are scanned and checked for malware before publishing.Added 2026-11-01Open Uptodown submit page (new tab)Uptodown details
2584Zenodo85Nofollowzenodo.orgSoftware directoriesFreeModerateHighVerified livePublish a genuine open your tool dataset, benchmark, software release, poster, or reproducible research artifact and connect its related identifier to your tool.Not for marketing PDFs. Upload a reusable artifact with accurate creators, license, metadata, and persistent record.https://help.zenodo.org/docs/deposit/create-new-upload/Open Zenodo submit page (new tab)Zenodo details
2681CybersecTools—Link type unknowncybersectools.comSoftware directoriesFree + paid tierModerateHighVerified liveSubmit a security-focused your tool product or tool for editorial classification.Must be a cybersecurity product; free links are nofollow and review can take two weeks.2026-08-05Open CybersecTools submit page (new tab)CybersecTools details
2781G290Nofollowg2.comSoftware directoriesFree + paid tierModerateHighNot submittedCreate seller profile and list product if eligible.Needs B2B SaaS positioning and review collection.2026-07-30Open G2 submit page (new tab)G2 details
2881Indie Tools—Link type unknownindietools.workSoftware directoriesFree + paid tierModerateHighNot submittedSubmit practical tool for indie developers/SaaS makers.Human review; keep description practical.2026-07-30Open Indie Tools submit page (new tab)Indie Tools details
2981SaaSCity—Link type unknownsaascity.ioSoftware directoriesFree + paid tierModerateHighNot submittedSubmit the working your platform with an English description, strong logo, accurate screenshots, categories and pricing details.Working digital products only; no coming-soon page without beta access; English landing page and high-quality logo required; free intake is reviewed and capacity-limited.2026-08-03Open SaaSCity submit page (new tab)SaaSCity details
3074OWASP Foundation Projects85Link type unknownowasp.orgSoftware directoriesPaidModerateHighLive, conditionalOffer a standalone, vendor-neutral security tool or documentation project with open governance and a committed leader, then submit the official new-project request.OWASP projects must be genuinely open source and maintained as community projects; approval is required, official source hosting is mandated, and the project page must be created within the stated onboarding period. Do not submit a branded sales funnel.2026-08-03Open OWASP Foundation Projects submit page (new tab)OWASP Foundation Projects details
3166Apps 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
3266AsyncAPI 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
3366Codidact 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
3466Developers 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
3566DHIS2 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
3666EVERSE 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
3766FileHippo85Nofollowfilehippo.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
3866FileHorse70Link 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
3966FSF 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
4066HAL 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
4166Homebrew40Link 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
4266Internet 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
4366IzzyOnDroid40Link 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
4466Journal 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
4566MacUpdate75Nofollowmacupdate.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
4666MajorGeeks80Link 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
4766SaaSQuiver—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
4866Savannah 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
4966SnapFiles65Link 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
5066SoftwareMarket—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
5166switching.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
5266Teach 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
5366TechSpot 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
5466Trello 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
5563Alternative.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
5663Crozdesk60Link 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
5763DevTool 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
5863Figshare90Nofollowfigshare.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
5963GoodFirms75Sometimes 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
6063SoftwareWorld55Link 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
6163TechSuggest—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
6263Tekpon55Link 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
6363ToolShelf—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
6463TrustRadius80Nofollowtrustradius.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
6563Zuctools—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
6662SaaS 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
6756Journal 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
6846Astrophysics 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
6946Business-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
7046CSDMS 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
7146ITQlick45Link 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
7246LO4D65Link 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
7346Neowin 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
7446OpenAlternative45Dofollowopenalternative.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
7546OpenEBench40Link 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
7646pyOpenSci45Link 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
7746rOpenSci70Link 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
7846ROS 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
7946SoftwareConnect45Link 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
8043DesignRush75Sometimes 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
8143FeedMyApp30Link 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
8243NITRC55Link 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
8343Remote 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
8443SaaS 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
8543Software Finder50Link type unknownsoftwarefinder.comSoftware directoriesFree + paid tierModerateLaterNeeds checkingClaim or request a product listing in the right software category.Vendors cannot post their own reviews.Added 2026-11-01Open Software Finder submit page (new tab)Software Finder details
8643Software for Progress Foundation—Link type unknownsoftwareforprogress.orgSoftware directoriesFree + paid tierModerateLaterLive, conditionalSubmit an open-source your tool accessibility, education or digital-security component for foundation review.Mission alignment, public code, team details and an impact roadmap are required.2026-08-03Open Software for Progress Foundation submit page (new tab)Software for Progress Foundation details
8743Techjockey60Nofollowtechjockey.comSoftware directoriesFree + paid tierModerateLaterNeeds checkingRegister as a vendor to list your software for Indian business buyers.Listings are reviewed; resale partnerships are optional.Added 2026-11-01Open Techjockey submit page (new tab)Techjockey details
8842AppAppeal40Link type unknownappappeal.comSoftware directoriesNot statedModerateLaterNeeds checkingSubmit or request app review/listing.Older directory; verify active.2026-07-30Open AppAppeal submit page (new tab)AppAppeal details
8942MagicBox.tools—Link type unknownmagicbox.toolsSoftware directoriesNot statedModerateLaterNeeds checkingSubmit useful your tool utilities.Verify quality/form.2026-07-30Open MagicBox.tools submit page (new tab)MagicBox.tools details
9042Nicelydone45Link type unknownnicelydone.clubSoftware directoriesNot statedModerateLaterNeeds checkingSubmit/request inclusion if UI is strong.Verify submission route.2026-07-30Open Nicelydone submit page (new tab)Nicelydone details
9142ToolFio—Link type unknowntoolfio.comSoftware directoriesNot statedModerateLaterNeeds checkingSubmit online tool/platform if form exists.Verify active submit flow.2026-07-30Open ToolFio submit page (new tab)ToolFio details
9242Twelve Tools—Link type unknowntwelvetools.comSoftware directoriesNot statedModerateLaterNeeds checkingSubmit useful tool/platform.Verify active form.2026-07-30Open Twelve Tools submit page (new tab)Twelve Tools details
9342UpRank—Link type unknownuprank.comSoftware directoriesNot statedModerateLaterVerified liveSubmit your tool for manual inclusion in the software directory.Manually vetted; acceptance and category fit are discretionary.https://uprank.com/list-your-businessOpen UpRank submit page (new tab)UpRank details
9436SubmitSaaS—Link type unknownsubmitsaas.comSoftware directoriesPaidModerateLaterNeeds checkingUse only if outsourcing manual directory submissions.Vet quality; avoid low-quality guaranteed-link spam.2026-07-30Open SubmitSaaS submit page (new tab)SubmitSaaS 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.