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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

1–100 of 175 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
188FOSS United Grants45Link type unknownfossunited.orgOther opportunitiesPaidModerateDo firstLive, conditionalPropose a genuinely open-source, privacy-preserving your tool component with a public roadmap, Indian community benefit, budget, milestones, and maintenance plan.Funding is for FOSS creators, maintainers, projects, and communities in India; a closed-source commercial site or a marketing-only proposal is not eligible.2026-08-03Open FOSS United Grants submit page (new tab)FOSS United Grants details
288W3C 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
385Black Hat Arsenal80Link type unknownblackhat.comSoftware directoriesPaidInvolvedDo firstNot submittedPrepare a focused open-source defensive tool with English documentation, reproducible demos, and a technical presenter, then submit to the next relevant Arsenal Call for Tools.Arsenal is selected by a review board and demonstrations must focus on the submitted open-source tool. Product pitches, upsells, unrelated company branding, and closed-source marketing demos are prohibited. Europe 2026 submissions closed 2026-07-19.2026-08-03Open Black Hat Arsenal submit page (new tab)Black Hat Arsenal details
485TechnologyAdvice70Link type unknowntechnologyadvice.comMarketplaces and app storesPaidInvolvedDo firstNot submittedApply for the free Basic profile with a current website, clear business value, category, pricing, and authentic reviews.Must be business-use software that fits an established category and has a clear value proposition; editorial acceptance is discretionary.2026-08-03Open TechnologyAdvice submit page (new tab)TechnologyAdvice details
576C2PA55Link type unknownc2pa.orgPublishing platformsPaidQuickHighLive, conditionalApply through the official Linux Foundation enrollment if your tool will genuinely implement or contribute to C2PA standards.Strong technical fit and participation are required; acceptance and roster visibility are not a self-serve directory shortcut.2026-08-04Open C2PA submit page (new tab)C2PA details
676ESC India40Link type unknownescindia.inProfiles and entitiesPaidQuickHighLive, conditionalApply as an eligible Indian software or ITeS exporter with company, GST, IEC/DGFT and RCMC evidence as requested.Exporter eligibility and documentation apply; official member pages exist but an external website link is not guaranteed.2026-08-04Open ESC India submit page (new tab)ESC India details
776Global Cyber Alliance60Link type unknownglobalcyberalliance.orgProfiles and entitiesPaidQuickHighLive, conditionalPropose a concrete funded or in-kind your tool anti-scam, privacy or cyber-safety collaboration through Become a Partner.A formal agreement and real contribution are required; partner-page publication is not self-serve or guaranteed.2026-08-04Open Global Cyber Alliance submit page (new tab)Global Cyber Alliance details
876Nova Extension Library55Link type unknownnova.appMarketplaces and app storesPaidQuickHighVerified liveBuild a Nova extension that runs your tool privacy and code-safety checks from the editor.Validate and submit through Nova CLI; manifest category and runtime requirements apply.Official Nova extension CLI documentation checked 2026-08-07Open Nova Extension Library submit page (new tab)Nova Extension Library details
976Sketch Plugin Directory85Link type unknownsketch.comMarketplaces and app storesPaidQuickHighVerified liveBuild a Sketch plugin for accessibility, metadata cleanup, or sensitive-placeholder detection.Host the plugin ZIP and update JSON, then submit to the official directory; legacy skpm is unsupported.Official Sketch plugin publishing documentation checked 2026-08-07Open Sketch Plugin Directory submit page (new tab)Sketch Plugin Directory details
1076Twilio Segment Integration Catalog85Link type unknownsegment.comMarketplaces and app storesPaidQuickHighVerified liveBuild a destination or function that sends only explicitly selected and sanitized events to your tool for PII or schema checks.Submit company and service metadata, documentation, and test credentials; Segment tests before a public beta listing, and strict consent and minimization are essential.Official Twilio Segment partner checklist checked 2026-08-07Open Twilio Segment Integration Catalog submit page (new tab)Twilio Segment Integration Catalog details
1176WIP50Link type unknownwip.coProfiles and entitiesPaidQuickHighNot submittedJoin as the founder, create one your tool project page, and share genuine shipped improvements with links only when useful.Profiles and projects are public by default; the community expects real shipped work, not promotional link dumping or future-only todos.2026-08-03Open WIP submit page (new tab)WIP details
1274Apple App Store100Nofollowdeveloper.apple.comMarketplaces and app storesPaidModerateHighLive, conditionalShip a real your tool iOS or macOS app and add the product, support and privacy URLs in App Store Connect.Requires Apple Developer membership, native app functionality, privacy disclosures and successful App Review.https://developer.apple.com/app-store/submitting/Open Apple App Store submit page (new tab)Apple App Store details
1374Civic Tech Field Guide40Link type unknowncivictech.guideOther opportunitiesPaidModerateHighVerified liveSubmit only your tool tools with a clear civic or public-interest use case, using the official project name, URL, one-sentence description, accurate category, and contact email.The project must genuinely fit civic technology or an adjacent public-interest field. Submissions enter a moderation queue; quote third-party text only with attribution and do not treat the form as a generic SaaS directory.2026-08-03Open Civic Tech Field Guide submit page (new tab)Civic Tech Field Guide details
1474CSS Weekly45Sometimes dofollowcss-weekly.comDesign galleriesPaidModerateHighVerified liveSponsor an your tool frontend, accessibility, CSS, or developer utility with a useful demo and audience-specific copy.Official page advertises a permanent dofollow link, but paid links should be marked rel=sponsored for search-policy compliance; prioritize audience value.https://css-weekly.com/advertiseOpen CSS Weekly submit page (new tab)CSS Weekly details
1574data.world75Nofollowdata.worldCommunities and forumsPaidModerateHighVerified livePublish a documented synthetic privacy, redaction, accessibility, or scam-detection benchmark dataset.Use an appropriate licence and rich metadata; never publish proprietary, copyrighted, sensitive, or personal data.Official data.world dataset creation documentation checked 2026-08-07Open data.world submit page (new tab)data.world details
1674Dense Discovery50Link type unknowndensediscovery.comDesign galleriesPaidModerateHighVerified livePromote a privacy-respecting or thoughtfully designed your tool utility through a classified or main sponsor slot.Ads are reviewed for fit and values; links are paid placements, so measure referral value and do not treat them as PageRank endorsements.https://www.densediscovery.com/advertise/Open Dense Discovery submit page (new tab)Dense Discovery details
1774Easy With AI35Link type unknowneasywithai.comAI tool directoriesPaidModerateHighVerified liveSubmit your tool strongest AI-powered utilities with a polished listing.Must be a working AI tool; manual approval and refund if rejected.https://easywithai.com/submit-tool/Open Easy With AI submit page (new tab)Easy With AI details
1874Freshworks Marketplace85Nofollowfreshworks.comMarketplaces and app storesPaidModerateHighVerified liveBuild a Freshdesk or Freshservice app that deliberately sends selected ticket text to an your tool PII or scam check and returns a transparent report.A functional app must pass platform validation plus security, UX, code, documentation, privacy, and listing review.Official Freshworks app submission documentation checked 2026-08-07Open Freshworks Marketplace submit page (new tab)Freshworks Marketplace details
1974Google Play100Nofollowplay.google.comMarketplaces and app storesPaidModerateHighLive, conditionalPublish a genuine your tool Android app and use the website, support and privacy-policy fields for official links.Developer verification, testing requirements, privacy/data-safety disclosures and Play policy compliance are required.https://play.google.com/console/about/Open Google Play submit page (new tab)Google Play details
2074IAAP45Link type unknownaccessibilityassociation.orgOther opportunitiesPaidModerateHighLive, conditionalEnroll an eligible your tool entity as a small-organization Associate Corporate member and opt into the directory.Approval and membership terms apply; strong fit requires genuine accessibility practice and participation.2026-08-04Open IAAP submit page (new tab)IAAP details
2174IDSA50Link type unknownidsalliance.orgProfiles and entitiesPaidModerateHighLive, conditionalChoose an appropriate corporate, partner or vendor tier and apply with your tool genuine identity-security work.Identity/security relevance and approval required; the official benefit includes an IDSA website listing.2026-08-04Open IDSA submit page (new tab)IDSA details
2274Inkscape Extension Gallery75Link type unknowninkscape.orgMarketplaces and app storesPaidModerateHighVerified livePublish an Inkscape extension for SVG metadata cleanup, privacy inspection, or accessible-export checks.Upload through InkSpace and request review; provide source, licence, compatibility details, and safe code.Official Inkscape extension gallery submission path checked 2026-08-07Open Inkscape Extension Gallery submit page (new tab)Inkscape Extension Gallery details
2374Kantara Initiative55Link type unknownkantarainitiative.orgProfiles and entitiesPaidModerateHighLive, conditionalUse the organization signup path and participate in relevant identity, privacy or assurance working groups.Community and standards participation are expected; membership should not be purchased solely for a backlink.2026-08-04Open Kantara Initiative submit page (new tab)Kantara Initiative details
2474Mendix Marketplace75Link type unknownmendix.comMarketplaces and app storesPaidModerateHighVerified liveBuild a Mendix connector or module that invokes your tool on user-selected records or files and displays structured reports.Supply package or source, screenshots, documentation, and support URLs; public content is reviewed for quality, licensing, and vulnerabilities.Official Mendix Marketplace content submission documentation checked 2026-08-07Open Mendix Marketplace submit page (new tab)Mendix Marketplace details
2574MetaFilter Projects85Nofollowmetafilter.comDesign galleriesPaidModerateHighVerified liveAfter becoming a genuine member, submit your tool as a completed web project with a plain factual description in MetaFilter Projects only.Self-links are prohibited elsewhere; use Projects only, respect posting cadence, and participate as a community member.Official MetaFilter Projects, FAQ, and about pages checked 2026-08-07Open MetaFilter Projects submit page (new tab)MetaFilter Projects details
2674MyData Global45Link type unknownmydata.orgOther opportunitiesPaidModerateHighLive, conditionalJoin as an eligible small business and opt in to publication of your tool organization name and profile.Strong fit only if AltFTool commits to human-centric data-rights principles; not for backlink-only membership.2026-08-04Open MyData Global submit page (new tab)MyData Global details
2774OBS Resources80Link type unknownobsproject.comMarketplaces and app storesPaidModerateHighVerified liveBuild an OBS privacy guard that detects exposed secrets or sensitive screen regions before streaming.Submit through Add Resource; a forum account and moderation approval are required and review may be slow.Official OBS plugin resource instructions checked 2026-08-07Open OBS Resources submit page (new tab)OBS Resources details
2874ONLYOFFICE Plugin Marketplace75Link type unknownonlyoffice.comMarketplaces and app storesPaidModerateHighVerified liveBuild an ONLYOFFICE plugin for document redaction, metadata cleanup, or secret scanning.Add the working plugin to the marketplace repository and submit a pull request; it must function correctly before approval.Official ONLYOFFICE marketplace submission documentation checked 2026-08-07Open ONLYOFFICE Plugin Marketplace submit page (new tab)ONLYOFFICE Plugin Marketplace details
2974Open Source Collective40Link type unknownoscollective.orgProfiles and entitiesPaidModerateHighLive, conditionalApply for fiscal hosting only for a legitimate open-source your tool project or community with active development, public impact, and preferably two project administrators.OSC reviews legitimacy, open-source alignment, and its hosting terms. It does not host an individual spanning unrelated projects; project finances become transparent and formal agreements require host approval.2026-08-03Open Open Source Collective submit page (new tab)Open Source Collective details
3074OpenID Foundation80Link type unknownopenid.netProfiles and entitiesPaidModerateHighLive, conditionalJoin as a small organization if your tool genuinely implements or contributes to OpenID, OAuth or related identity standards.Standards participation and truthful brand use are expected; company name/logo visibility should not be the sole reason to join.2026-08-04Open OpenID Foundation submit page (new tab)OpenID Foundation details
3174OWASP 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
3274PitchGround55Link type unknownpitchground.comMarketplaces and app storesPaidModerateHighLive, conditionalCreate the product in PitchGround's vendor dashboard and prepare a tested redemption, onboarding, documentation, and support flow.A functional SaaS and sustainable offer are required; review the 60-day refund maturation, payout threshold, support, and testing rules first.2026-08-03Open PitchGround submit page (new tab)PitchGround details
3374Sentry Integration Directory85Link type unknownsentry.ioMarketplaces and app storesPaidModerateHighVerified liveBuild a Sentry integration that detects PII or credentials before issue data is exported or shared.Requires complete metadata, installation docs, support email, demo video, and an estimated four-to-five-week review.Official Sentry public integration publication instructions checked 2026-08-07Open Sentry Integration Directory submit page (new tab)Sentry Integration Directory details
3474Startup Heroes—Link type unknownstartupheroes.ioLaunch platformsPaidModerateHighNot submittedSubmit one truthful your tool launch with a working URL, concise pitch, logo, and screenshots, then respond to manual review if needed.Automated and manual review apply; duplicate SEO submissions or vote manipulation can cause rejection and loss of refund.2026-08-03Open Startup Heroes submit page (new tab)Startup Heroes details
3574The Carpentries Incubator65Link type unknowncarpentries.orgStartup directoriesPaidModerateHighVerified liveCreate a substantive privacy, security, or accessibility lesson using your tool exercises and propose it through the Incubator.Lesson must be openly licensed, educational, maintainable, and non-promotional; Incubator status is not Carpentries endorsement.Official community-lessons and lesson-developer guides checked 2026-08-05Open The Carpentries Incubator submit page (new tab)The Carpentries Incubator details
3674Zendesk Marketplace90Link type unknownzendesk.comMarketplaces and app storesPaidModerateHighVerified liveCreate a Zendesk app or marketing-only integration for selected-ticket PII and scam checks with your tool support and pricing links.Organization registration, a working app or integration, manifest, assets, privacy/support material, truthful pricing, and review are mandatory.Official Zendesk Marketplace submission documentation checked 2026-08-07Open Zendesk Marketplace submit page (new tab)Zendesk Marketplace details
3774Zoho Marketplace90Link type unknownzoho.comMarketplaces and app storesPaidModerateHighVerified liveBuild a Zoho extension for document privacy, text cleanup, or data-export checks and submit its support, policy, guide, and website links.Public extensions require review, declared data handling, privacy policy, terms, screenshots, user documentation, and accurate pricing.Official Zoho Sigma extension publishing documentation checked 2026-08-07Open Zoho Marketplace submit page (new tab)Zoho Marketplace details
3871Codrops75Sometimes dofollowtympanus.netDesign galleriesPaidInvolvedHighVerified livePitch a crafted, original interactive tutorial or demo about client-side privacy visualization, inclusive motion, or accessible creative tooling, with source and a working demo.Codrops seeks fresh ideas and high-quality work for web professionals; the editorial and visual craft bar is high. Use a real author identity and pitch original teaching value, not a promotional guest post.2026-08-03Open Codrops submit page (new tab)Codrops details
3971EIN Presswire75Nofolloweinpresswire.comPR and source platformsPaidInvolvedHighVerified livePublish a genuinely newsworthy your tool launch, major privacy-tool release, original data report, or partnership with one contextual site link.Account verification and editorial review apply; pickup, indexing, and link attributes vary, so this is not guaranteed earned coverage.https://www.einpresswire.com/how-it-worksOpen EIN Presswire submit page (new tab)EIN Presswire details
4071Nullcon55Link type unknownnullcon.netReview platformsPaidInvolvedHighNot submittedDevelop original, defensible research around AI-agent abuse, prompt injection, document forensics, scam detection, or privacy engineering and submit a demo-backed talk in the next cycle.Nullcon prioritizes original research, technical depth, evidence, practical defensive value, and reproducibility; product pitches and recycled decks are not accepted. Berlin 2026 CFP closed 2026-07-12.2026-08-03Open Nullcon submit page (new tab)Nullcon details
4171PodcastGuests.com45Link type unknownpodcastguests.comMarketplaces and app storesPaidInvolvedHighLive, conditionalCreate a genuine founder expert profile with your tool website, topics, bio, and real media appearances so relevant hosts can invite you.Profile must represent a real expert; no fake appearances or mass pitching. Basic allows one website link.2026-08-05Open PodcastGuests.com submit page (new tab)PodcastGuests.com details
4271PR Underground55Nofollowprunderground.comPR and source platformsPaidInvolvedHighVerified livePublish a factual your tool milestone or research announcement with a clean landing-page URL and media assets.Editorial approval is required; syndicated copies, indexing, and link attributes are outside AltFTool’s control.https://www.prunderground.com/faq/Open PR Underground submit page (new tab)PR Underground details
4371Pressat55Nofollowpressat.co.ukPR and source platformsPaidInvolvedHighVerified liveCreate a UK-relevant your tool story or hosted newsroom announcement with useful assets and restrained links.Only publish genuine news; permanent hosting and links do not guarantee coverage, ranking, or followed-link value.https://pressat.co.uk/packages/Open Pressat submit page (new tab)Pressat details
4471PRWeb90Nofollowprweb.comPR and source platformsPaidInvolvedHighVerified liveUse a major your tool product update, benchmark report, or partnership story with one clear media angle.Editorial review applies; PRWeb explicitly does not guarantee search rank or media use of the release.https://www.prweb.com/product/faq/Open PRWeb submit page (new tab)PRWeb details
4571ResponseSource55Nofollowresponsesource.comPR and source platformsPaidInvolvedHighVerified liveMonitor relevant journalist requests and answer only when your tool has direct expertise, data, or a credible founder quote.Never force a product mention; replies must exactly match the request, and publication or backlink is entirely editorial.https://www.responsesource.com/pr/pricing/Open ResponseSource submit page (new tab)ResponseSource details
4671SaaSGenius—Link type unknownsaasgenius.comSoftware directoriesPaidInvolvedHighVerified liveSubmit your tool as a production SaaS and request a reviewed product profile.No B2C-only, alpha/beta, standalone mobile-only, or products without US customers.https://www.saasgenius.com/get-listed/Open SaaSGenius submit page (new tab)SaaSGenius details
4771Send2Press60Nofollowsend2press.comPR and source platformsPaidInvolvedHighVerified liveDistribute a concise news release about a significant your tool launch, study, award, or partnership.Must be a real news release rather than an advertorial; editorial approval, pickup, and link treatment vary.https://www.send2press.com/services/price-list.shtmlOpen Send2Press submit page (new tab)Send2Press details
4858Chrome Web Store95Nofollowchromewebstore.google.comMarketplaces and app storesPaidQuickMediumNot submittedPublish useful browser extension linking your tool.Listing links often nofollow/ugc; value is distribution.2026-07-30Open Chrome Web Store submit page (new tab)Chrome Web Store details
4958commercetools Connect Marketplace70Link type unknowncommercetools.comMarketplaces and app storesPaidQuickMediumVerified livePackage an your tool commercetools Connector and request certification and public Marketplace listing.Must be a deployable Connect Connector and pass certification; publication is not a generic URL submission.Official commercetools Connect documentation checked 2026-08-07Open commercetools Connect Marketplace submit page (new tab)commercetools Connect Marketplace details
5058Cybersecurity Tech Accord55Link type unknowncybertechaccord.orgProfiles and entitiesPaidQuickMediumLive, conditionalAfter publishing a mature security policy and VDP, contact the Secretariat to apply as a signatory to all four principles.Acceptance is discretionary and requires genuine defensive-security, capacity-building and collective-action commitments; never treat it as a badge shortcut.2026-08-05 official commitments, signatory and contact pagesOpen Cybersecurity Tech Accord submit page (new tab)Cybersecurity Tech Accord details
5158DoMore.ai—Link type unknowndomore.aiAI tool directoriesPaidQuickMediumLive, conditionalSubmit a working AI feature with accurate categorization, pricing, description, and screenshots for quality review.Only genuine AI tools that meet quality standards should be submitted; paid placement does not guarantee users or rankings.2026-08-03Open DoMore.ai submit page (new tab)DoMore.ai details
5258Global Forum on Cyber Expertise50Link type unknownthegfce.orgDeveloper registriesPaidQuickMediumVerified liveApply as an eligible Member or Partner and contribute resources or expertise to real cyber-capacity-building working groups.Companies may apply as Members with commitment/resources; NGO, civil-society, academic or technical Partners need Member endorsement.2026-08-05 — https://thegfce.org/become-a-member-or-partner/Open Global Forum on Cyber Expertise submit page (new tab)Global Forum on Cyber Expertise details
5358Homey App Store60Link type unknownhomey.appMarketplaces and app storesPaidQuickMediumLive, conditionalBuild a Homey app only if your tool adds a genuine IoT privacy or local-device workflow; package, test, validate, and submit it for certification.Requires a working app, compliant manifest, support information, testing, validation, and Athom certification before public release.Official Homey App Store publishing documentation checked 2026-08-07Open Homey App Store submit page (new tab)Homey App Store details
5458Intigriti Public Programs65Nofollowintigriti.comOther opportunitiesPaidQuickMediumVerified liveStart privately, mature the process, then publish an your tool program indexed in Intigriti's public directory.Define exact scope, rewards, exclusions, researcher rules, triage capacity, and remediation SLAs.Official Intigriti bug-bounty program documentation checked 2026-08-07Open Intigriti Public Programs submit page (new tab)Intigriti Public Programs details
5558Max Package Manager65Link type unknowncycling74.comDeveloper registriesPaidQuickMediumVerified livePublish a Max package for media metadata inspection, audio privacy, or accessibility analysis.Package structure, package-info.json, README, licence, documentation, and icon are expected before form submission.Official Cycling '74 package submission documentation checked 2026-08-07Open Max Package Manager submit page (new tab)Max Package Manager details
5658Micro.blog65Link type unknownmicro.blogPublishing platformsPaidQuickMediumNeeds checkingCreate a founder blog that shares compact product lessons and full tutorials linking to the relevant your tool page when useful.Paid service; links should support genuine posts and community participation, not repetitive product promotion.2026-08-03Open Micro.blog submit page (new tab)Micro.blog details
5758Miro Marketplace90Link type unknownmiro.comMarketplaces and app storesPaidQuickMediumVerified liveBuild a working Miro app for board accessibility, privacy, or export auditing; establish real users and demand before applying through the partner route.Current public submission requires approved Partner status; Miro prioritizes working apps with customer demand, traction, and ecosystem fit.Official Miro Marketplace documentation checked 2026-08-07Open Miro Marketplace submit page (new tab)Miro Marketplace details
5858SourceHut60Link type unknownsr.htDeveloper registriesPaidQuickMediumLive, conditionalHost a maintained your tool open-source component with complete README, homepage/source metadata, releases and optional pages.sr.ht docs.Use for a genuine maintained FOSS project, not an empty promotional mirror; SourceHut actively fights abuse.2026-08-04Open SourceHut submit page (new tab)SourceHut details
5958TopTools—Link type unknowntoptools.aiAI tool directoriesPaidQuickMediumLive, conditionalSubmit only a specific your tool AI tool with the official site and contact email, not the platform as a generic tools directory.The directory explicitly rejects AI newsletters and directories; AltFTool is eligible only if the submission represents a real standalone AI capability.2026-08-03Open TopTools submit page (new tab)TopTools details
6056Adalo Component Marketplace70Nofollowadalo.comMarketplaces and app storesPaidModerateMediumVerified liveBuild and document a real Adalo component library for an your tool workflow and apply for marketplace publication.Requires functional components, an eligible developer setup, documentation, review, ongoing support, and compliance with marketplace commercial rules.Official Adalo component library publishing documentation checked 2026-08-07Open Adalo Component Marketplace submit page (new tab)Adalo Component Marketplace details
6156AIListingTool—Link type unknownailistingtool.comAI tool directoriesPaidModerateMediumNot submittedSubmit a qualified your tool AI utility with authorized branding, logo, category, pricing model and fully accurate product information.AI tools only; submitter must own or be authorized to list the product; every submission is reviewed and payment does not excuse misleading or low-quality information.2026-08-03Open AIListingTool submit page (new tab)AIListingTool details
6256Alibaba Cloud Marketplace85Nofollowalibabacloud.comMarketplaces and app storesPaidModerateMediumVerified liveOffer your tool as a documented SaaS or BYOL deployment for Alibaba Cloud customers with clear privacy controls and support.A business account, enterprise verification, company documents and site, and vendor approval are required; Free or BYOL precedes paid Cosell setup.Official Alibaba Cloud Marketplace vendor application documentation checked 2026-08-07Open Alibaba Cloud Marketplace submit page (new tab)Alibaba Cloud Marketplace details
6356Apple App Store100Nofollowapple.comMarketplaces and app storesPaidModerateMediumLive, conditionalBuild a useful your tool iOS or macOS app and submit complete support, privacy, accessibility and marketing metadata through App Store Connect.Requires legal enrollment, current SDK, working app, privacy disclosures and App Review approval; listing is not for a web-wrapper backlink.2026-08-05 official Apple Developer Program and App Store submission pagesOpen Apple App Store submit page (new tab)Apple App Store details
6456BigCommerce App Marketplace85Nofollowbigcommerce.comMarketplaces and app storesPaidModerateMediumNot submittedBuild an OAuth app that audits merchant exports or product assets for privacy issues, then submit tested listing assets through the Developer Portal.Requires a Partner ID, valid OAuth scopes, production testing, review, and listing requirements; paid placement or dofollow links are not promised.2026-08-03Open BigCommerce App Marketplace submit page (new tab)BigCommerce App Marketplace details
6556Bytes50Link type unknownbytes.devPublishing platformsPaidModerateMediumVerified liveSponsor your tool’s strongest browser or JavaScript-based developer utility with copy tailored to working JS developers.Only relevant developer products fit; sponsorship is advertising and does not guarantee an indexed or followed backlink.https://bytes.dev/advertiseOpen Bytes submit page (new tab)Bytes details
6656Changelog Media70Sometimes dofollowchangelog.comPublishing platformsPaidModerateMediumVerified liveRun a clearly disclosed campaign for your tool’s developer and security tools across relevant Changelog podcasts or newsletters.Free news submissions explicitly reject commercial products and services, so use sponsorship; treat links as ads, not PageRank.https://changelog.com/news/submitOpen Changelog Media submit page (new tab)Changelog Media details
6756Contentful Marketplace85Link type unknowncontentful.comMarketplaces and app storesPaidModerateMediumLive, conditionalBuild a production Contentful app for your tool privacy or content checks and apply through the Marketplace submission flow.Interest and eligibility screening precedes phased review; a functional app, support, privacy, terms, and documentation are required.Official Contentful Marketplace app submission guidance checked 2026-08-07Open Contentful Marketplace submit page (new tab)Contentful Marketplace details
6856Contently70Nofollowcontently.comPublishing platformsPaidModerateMediumVerified liveUse a real writer or designer identity, add authored your tool work as a properly credited clip or case study, and include the personal website link in the profile.For authentic individual freelancers, not brand shells; approval needs portfolio depth, and public portfolio pages are intentionally noindex.Official Contently portfolio visibility and setup guidance checked 2026-08-07Open Contently submit page (new tab)Contently details
6956CSS Light40Link type unknowncsslight.comDesign galleriesPaidModerateMediumNot submittedSubmit your tool best landing or tools page with a strong screenshot, accurate categories, and creator details.Free submissions are currently closed; paid review does not replace the need for a high-quality, working website.2026-08-03Open CSS Light submit page (new tab)CSS Light details
7056Defold Asset Portal60Link type unknowndefold.comMarketplaces and app storesPaidModerateMediumVerified livePublish a reusable Defold privacy-safe logging, security, or build-audit tool.Provide project URL, licence, platform support, tags, and thumbnail; the official form opens the final review issue.Official Defold asset submission page checked 2026-08-07Open Defold Asset Portal submit page (new tab)Defold Asset Portal details
7156Digital Public Goods Alliance55Link type unknowndigitalpublicgoods.netOther opportunitiesPaidModerateMediumVerified liveAfter your tool has a genuinely open-source, well-documented public-interest component, complete the eligibility assessment and nominate that specific component.High bar: open licensing, ownership, documentation, platform independence, standards, privacy, security, non-PII handling, lawful content, and Sustainable Development Goal relevance must all be evidenced. Nomination is not guaranteed recognition.2026-08-03Open Digital Public Goods Alliance submit page (new tab)Digital Public Goods Alliance details
7256Dunked50Link type unknowndunked.comOther opportunitiesPaidModerateMediumLive, conditionalCreate a portfolio for genuine your tool product/design work and use each project's external URL field for the matching live page.Only showcase work actually produced; complete project descriptions and avoid duplicate promotional pages.2026-08-04Open Dunked submit page (new tab)Dunked details
7356FIWARE Marketplace60Link type unknownfiware.orgMarketplaces and app storesPaidModerateMediumVerified liveBuild a genuine FIWARE-powered privacy, consent, data-space, or civic-safety solution, document its architecture and data models, then submit it for expert validation.Must materially use FIWARE Context Broker or compatible components, provide technical evidence and references, and pass FIWARE evaluation; showcase is not endorsement.Official FIWARE marketplace submission and validation guides checked 2026-08-05Open FIWARE Marketplace submit page (new tab)FIWARE Marketplace details
7456Format75Sometimes dofollowformat.comOther opportunitiesPaidModerateMediumNot submittedCreate a founder or product-design portfolio with an original your tool case study and add the canonical site as an external menu link.This is a paid portfolio platform; the case study should demonstrate real work and should not exist only to manufacture a link.2026-08-03Open Format submit page (new tab)Format details
7556GDevelop Community Extensions60Link type unknowngdevelop.ioMarketplaces and app storesPaidModerateMediumVerified liveCreate a GDevelop extension for safe local storage, consent UX, or secret-free analytics configuration.Community extensions are open source and peer reviewed; include examples and never embed credentials or user data.Official GDevelop extension sharing guidance checked 2026-08-07Open GDevelop Community Extensions submit page (new tab)GDevelop Community Extensions details
7656HubSpot App Marketplace95Nofollowhubspot.comMarketplaces and app storesPaidModerateMediumVerified liveBuild a public OAuth your tool integration, gain qualifying installs, then submit setup docs plus support, privacy, and terms URLs.Requires a unique public app, Partner Agreement, at least three active unaffiliated installs in the prior 30 days, complete legal material, and review.Official HubSpot App Marketplace listing documentation checked 2026-08-07Open HubSpot App Marketplace submit page (new tab)HubSpot App Marketplace details
7756Journal 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
7856Lemon Squeezy70Nofollowlemonsqueezy.comOther opportunitiesPaidModerateMediumLive, conditionalCreate a legitimate free or paid your tool resource or software product and publish it on a branded hosted storefront.Store activation requires identity and business review; never create a dummy product only for a link.2026-08-05Open Lemon Squeezy submit page (new tab)Lemon Squeezy details
7956Open Technology Fund65Link type unknownopentech.fundOther opportunitiesPaidModerateMediumLive, conditionalApply only with a validated open-source privacy or anti-surveillance project that directly helps users facing repressive censorship or surveillance.OTF requires concrete internet-freedom impact and identifiable beneficiary communities in repressive environments; a generic privacy-tool catalogue or claim that it helps everyone will not qualify.2026-08-03Open Open Technology Fund submit page (new tab)Open Technology Fund details
8056OpenSSF70Link type unknownopenssf.orgOther opportunitiesPaidModerateMediumLive, conditionalApply as a General Member only if your tool will meaningfully contribute engineering or resources to open-source security.Not worthwhile for a backlink alone; free Associate tier is restricted to qualifying nonprofits, academia or government.2026-08-04Open OpenSSF submit page (new tab)OpenSSF details
8156Principles for Digital Development55Link type unknowndigitalprinciples.orgOther opportunitiesPaidModerateMediumVerified liveObtain senior approval, submit the signed endorsement materials, implement the Principles and share a real case study.This is a public operational commitment; organization must apply the Principles in policy/process and participate in the community.2026-08-05 — https://digitalprinciples.org/endorsers/Open Principles for Digital Development submit page (new tab)Principles for Digital Development details
8256PWAStore25Link type unknownpwastore.ioMarketplaces and app storesPaidModerateMediumLive, conditionalSubmit the production PWA URL only after its manifest, service worker, installability, icons, and offline flow pass validation.The automated PWA check must recognize the app; eligibility depends on genuine PWA behavior rather than a normal responsive website.2026-08-03Open PWAStore submit page (new tab)PWAStore details
8356Salesforce AppExchange and AgentExchange95Link type unknownsalesforce.comMarketplaces and app storesPaidModerateMediumVerified liveBuild a genuine Salesforce package or API solution for selected-record privacy or document checks and complete its company and listing profile.Requires a partner account, package or API solution, accurate listing, security review where applicable, support commitments, and ongoing compliance.Official Salesforce next-generation publishing guidance checked 2026-08-07Open Salesforce AppExchange and AgentExchange submit page (new tab)Salesforce AppExchange and AgentExchange details
8456Samsung Galaxy Store95Nofollowsamsung.comMarketplaces and app storesPaidModerateMediumLive, conditionalPublish a genuine your tool Android app with accurate support/privacy URLs, data-safety declarations, assets and compatible binary.Samsung account, Seller Portal registration, commercial seller status and review are required even for distribution; metadata must match actual data handling.2026-08-05 official Samsung Galaxy Store developer guidesOpen Samsung Galaxy Store submit page (new tab)Samsung Galaxy Store details
8556Setapp Developer Program80Link type unknownsetapp.comMarketplaces and app storesPaidModerateMediumVerified liveSubmit a mature macOS, iOS, or web companion app that provides an your tool privacy workflow and links to its official product documentation.Requires a finished high-quality app, technical review, SDK integration, agreement, and ongoing support; acceptance is discretionary.2026-08-05Open Setapp Developer Program submit page (new tab)Setapp Developer Program details
8656Shopware Store75Link type unknownshopware.comMarketplaces and app storesPaidModerateMediumVerified liveBuild a Shopware admin extension for privacy and accessibility checks on selected catalog content, media, and exports.Extension Partner contract, complete listing assets, automated code review, and manual QA are required; support obligations continue after publication.Official Shopware extension partner documentation checked 2026-08-07Open Shopware Store submit page (new tab)Shopware Store details
8756SketchUp Extension Warehouse85Link type unknownsketchup.comMarketplaces and app storesPaidModerateMediumVerified liveBuild a SketchUp extension for model metadata sanitization or accessibility-ready export checks.Package a compliant extension and pass technical code review before publication.Official SketchUp Extension Warehouse developer documentation checked 2026-08-07Open SketchUp Extension Warehouse submit page (new tab)SketchUp Extension Warehouse details
8856Snowflake Marketplace90Link type unknownsnowflake.comMarketplaces and app storesPaidModerateMediumNot submittedBuild and test a Snowflake Native App for privacy-safe data inspection, create its application package and listing, pass scans, and publish through an eligible provider account.Requires a production-grade package, provider eligibility, security scanning and listing review; free or paid distribution does not promise an SEO backlink.2026-08-03Open Snowflake Marketplace submit page (new tab)Snowflake Marketplace details
8956Startups.fyi—Link type unknownstartups.fyiStartup directoriesPaidModerateMediumNot submittedSubmit your tool with a concise problem statement, clear screenshots, founder information, and the canonical product URL.Listings are paid and human-reviewed; payment places a submission in the publication queue but does not waive quality requirements.2026-08-03Open Startups.fyi submit page (new tab)Startups.fyi details
9056Stripe App Marketplace95Link type unknownstripe.comMarketplaces and app storesPaidModerateMediumVerified liveBuild a Stripe app that sends selected non-sensitive invoice or export data to a clearly scoped your tool audit and publish complete documentation.Only one app per account; minimum permissions, test and live-mode testing, accurate pricing, privacy-safe screenshots, support, and review are required.Official Stripe Apps publishing documentation checked 2026-08-07Open Stripe App Marketplace submit page (new tab)Stripe App Marketplace details
9156TLDR65Link type unknowntldr.techPublishing platformsPaidModerateMediumVerified livePlace a targeted your tool campaign in TLDR Dev, InfoSec, AI, Tech, Product, or Founders with a focused landing page.Maximum three advertisers per issue, but email or archive links are paid placements and offer no guaranteed SEO value.https://advertise.tldr.tech/Open TLDR submit page (new tab)TLDR details
9256ToolCenter—Link type unknowntoolcenter.aiAI tool directoriesPaidModerateMediumNot submittedSubmit your tool with logo, description, pricing and screenshot for permanent listing.Real reachable AI/productivity tool required; manual review; rejected submissions are refunded; listing claims dofollow.2026-07-30 • https://www.toolcenter.ai/en/submitOpen ToolCenter submit page (new tab)ToolCenter details
9356Toolify55Sometimes dofollowtoolify.aiAI tool directoriesPaidModerateMediumNot submittedSubmit AI tools/features with multilingual description.Claims dofollow/backlink; check cost before paying.2026-07-30Open Toolify submit page (new tab)Toolify details
9456ToolsBundle AI Directory25Link type unknownai.toolsbundle.comAI tool directoriesPaidModerateMediumNot submittedSubmit one relevant your tool AI utility with correct category, pricing, short description, useful features, professions and tags.The team reviews submissions before approval; submit only a genuine AI product and avoid keyword stuffing or unverifiable feature claims.2026-08-03Open ToolsBundle AI Directory submit page (new tab)ToolsBundle AI Directory details
9556TopAI.tools50Link type unknowntopai.toolsAI tool directoriesPaidModerateMediumNot submittedSubmit AI-facing feature; contact for verification.May require paid review; verify before spend.2026-07-30Open TopAI.tools submit page (new tab)TopAI.tools details
9656UXfolio55Link type unknownuxfol.ioPublishing platformsPaidModerateMediumNot submittedDocument your tool privacy, accessibility, and tool-discovery UX as a credible case study and link to the live product from relevant case-study text.Publishing requires a paid plan; the portfolio must show a real UX process and outcome rather than a promotional landing page.2026-08-03Open UXfolio submit page (new tab)UXfolio details
9756VTEX App Store80Link type unknownvtex.comMarketplaces and app storesPaidModerateMediumVerified liveBuild a VTEX IO your tool storefront or admin privacy utility, define billing, and submit it for homologation.Requires developer registration, a public VTEX IO app, billing model, and homologation; major versions can require renewed review.Official VTEX App Store documentation checked 2026-08-07Open VTEX App Store submit page (new tab)VTEX App Store details
9856Vultr Marketplace75Link type unknownvultr.comMarketplaces and app storesPaidModerateMediumVerified livePublish a secure one-click self-hosted your tool image or cloud-init deployment with documentation and support.A verified vendor and publisher agreement are required; provide site metadata, screenshots, and a tested deployment for review.Official Vultr Marketplace reference guide checked 2026-08-07Open Vultr Marketplace submit page (new tab)Vultr Marketplace details
9956Write.as65Link type unknownwrite.asPublishing platformsPaidModerateMediumNeeds checkingStart a focused your tool field-notes blog and publish useful privacy, accessibility, and security explainers with natural source links.Free registrations are currently closed; publish substantial original writing and do not create a thin backlink-only blog.2026-08-03Open Write.as submit page (new tab)Write.as details
10053ACCESS Newswire55Nofollowaccessnewswire.comPR and source platformsPaidInvolvedMediumVerified liveDistribute a substantial your tool launch or privacy/security research story with media, founder quote, and one canonical URL.Editorial acceptance applies; unlimited hyperlinks are offered, but pickup and link treatment remain publisher-controlled.https://www.accessnewswire.com/submit-a-press-releaseOpen ACCESS Newswire submit page (new tab)ACCESS Newswire 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.