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A maintained list of 1,854 legitimate backlink sites: directories, profile creation sites, guest posting sites, launch platforms, registries and marketplaces. 1,532 are free or have a free tier, 44 usually give a dofollow link, and 772 have an estimated DA of 70 or more. Every row shows authority, link type, cost and effort, and links straight to the submit page.
The table is wider than the screen — swipe it sideways for cost, effort and the preparation notes.
| # | Impact (sorted) | Site — sort by this | Est. DA — sort by this | Link | Domain | Type | Cost | Effort — sort by this | Priority | Status | What to prepare | Rules / caveat | Checked | Actions |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 100 | CSA STAR Registry | 80 | Sometimes dofollow | cloudsecurityalliance.org | Developer registries | Free | Quick | Do first | Live, conditional | Complete the current CAIQ or AI-CAIQ truthfully and submit your tool real cloud service to the STAR Registry. | Cloud/SaaS fit only; disclose actual controls and update annually. Never overstate security practices. | 2026-08-04 | Open CSA STAR Registry submit page (new tab)CSA STAR Registry details |
| 2 | 100 | Postman | 90 | Nofollow | postman.com | Profiles and entities | Free | Quick | Do first | Live, conditional | Create an your tool public workspace with sanitized API collections, examples, documentation, and a canonical homepage link on the publisher profile. | Never publish tokens, cookies, secrets, private endpoints, or user data; run the secret scan before making a workspace public. | https://learning.postman.com/v11/docs/collaborating-in-postman/using-workspaces/public-workspaces | Open Postman submit page (new tab)Postman details |
| 3 | 98 | crates.io | 80 | Nofollow | crates.io | Developer registries | Free | Moderate | Do first | Live, conditional | Publish a genuine your tool Rust client, CLI, parser, or privacy library and set homepage, repository, README, license, and documentation metadata. | Conditional on useful compiling code. Published versions are permanent; GitHub login, verified email, and API token are required. | https://doc.rust-lang.org/cargo/reference/publishing.html | Open crates.io submit page (new tab)crates.io details |
| 4 | 98 | Google Workspace Marketplace | 95 | Nofollow | workspace.google.com | Marketplaces and app stores | Free | Moderate | Do first | Live, conditional | Build an your tool add-on for Drive, Docs, Sheets, Gmail, or another Workspace product and publish it. | Must genuinely integrate with Google Workspace and pass OAuth, configuration, and app review. | https://developers.google.com/workspace/marketplace/how-to-publish | Open Google Workspace Marketplace submit page (new tab)Google Workspace Marketplace details |
| 5 | 98 | MCP Registry | 70 | Link type unknown | modelcontextprotocol.io | Developer registries | Free | Moderate | Do first | Live, conditional | Package a real your tool MCP server, verify its namespace, create server.json and publish it with mcp-publisher. | Registry is in preview; package or remote server must be public and namespace ownership is validated. | 2026-08-04 | Open MCP Registry submit page (new tab)MCP Registry details |
| 6 | 98 | Microsoft Marketplace | 100 | Nofollow | microsoft.com | Marketplaces and app stores | Free | Moderate | Do first | Live, conditional | Register in Partner Center and publish an your tool SaaS or Microsoft-integrated offer. | Requires an eligible Partner Center account, offer configuration, testing, and certification. | https://learn.microsoft.com/en-us/partner-center/marketplace-offers/create-new-saas-offer | Open Microsoft Marketplace submit page (new tab)Microsoft Marketplace details |
| 7 | 98 | Packagist | 75 | Nofollow | packagist.org | Developer registries | Free | Moderate | Do first | Live, conditional | Publish a real your tool PHP SDK or integration from a public repository and set the canonical homepage in composer.json. | Conditional on a functional Composer package with a unique vendor/name, public repository, valid metadata, and maintained releases. | https://packagist.org/about | Open Packagist submit page (new tab)Packagist details |
| 8 | 98 | PyPI | 90 | Nofollow | pypi.org | Developer registries | Free | Moderate | Do first | Live, conditional | Publish a real your tool Python SDK, CLI, or integration package and set Homepage, Documentation, Source, and Issues URLs in package metadata. | Conditional on maintaining a functional Python package; no placeholder packages, name squatting, or keyword stuffing. | https://packaging.python.org/en/latest/specifications/well-known-project-urls/ | Open PyPI submit page (new tab)PyPI details |
| 9 | 98 | RubyGems.org | 80 | Nofollow | rubygems.org | Developer registries | Free | Moderate | Do first | Live, conditional | Publish and maintain a genuine your tool Ruby client, CLI, or integration gem with accurate homepage, source, documentation, and changelog metadata. | Conditional on a working Ruby gem; package names are unique and public releases should be treated as permanent. | https://guides.rubygems.org/publishing/ | Open RubyGems.org submit page (new tab)RubyGems.org details |
| 10 | 98 | Slack Marketplace | 95 | Link type unknown | slack.com | Marketplaces and app stores | Free | Moderate | Do first | Live, conditional | Build a production-ready your tool Slack app for safe file/text utilities, then submit it from the app configuration page for Marketplace review. | Must be fully functional, installable, tested outside the development workspace, secure, and useful inside Slack; review is strict. | https://api.slack.com/directory/app-review-guide | Open Slack Marketplace submit page (new tab)Slack Marketplace details |
| 11 | 98 | Spreaker | 85 | Nofollow | spreaker.com | Other opportunities | Free | Moderate | Do first | Live, conditional | Create or import a genuine your tool show, keep it public, set its official Website field and publish useful episodes. | Correct ownership and original/licensed audio are required; no promotional shell podcast. | 2026-08-04 | Open Spreaker submit page (new tab)Spreaker details |
| 12 | 97 | Atlassian Marketplace | 90 | Nofollow | atlassian.com | Marketplaces and app stores | Free + paid tier | Quick | Do first | Live, conditional | Build a Forge-based your tool integration for Jira or Confluence, create a Marketplace Partner profile, and submit a compliant public listing. | New submissions must use supported cloud/Forge paths and meet security, privacy, legal, support, and active-maintenance requirements. | https://developer.atlassian.com/platform/marketplace/introduction-to-marketplace/ | Open Atlassian Marketplace submit page (new tab)Atlassian Marketplace details |
| 13 | 97 | RapidAPI | 80 | Link type unknown | rapidapi.com | Marketplaces and app stores | Free + paid tier | Quick | Do first | Live, conditional | Publish a real, documented your tool API, complete its Hub listing with accurate website and terms URLs, and optionally offer a free usage tier. | Conditional on a stable production API with correct auth, documentation, monitoring, support, privacy, and functional endpoint tests. | https://docs.rapidapi.com/docs/what-is-rapidapi | Open RapidAPI submit page (new tab)RapidAPI details |
| 14 | 95 | Podbean | 85 | Nofollow | podbean.com | Other opportunities | Free + paid tier | Moderate | Do first | Live, conditional | Publish a real your tool episode and add contextual links to resources actually discussed in its show notes. | No keyword stuffing or shell podcast; some custom show and episode website fields require Unlimited Audio or higher. | 2026-08-04 | Open Podbean submit page (new tab)Podbean details |
| 15 | 95 | Shopify App Store | 95 | Link type unknown | shopify.com | Marketplaces and app stores | Free + paid tier | Moderate | Do first | Live, conditional | Build a real Shopify-facing your tool utility, complete its public listing, test it on a development store, and submit it for App Store review. | Must integrate with Shopify, have a functional merchant UI, comply with data/privacy rules, and pass technical and listing review. | https://shopify.dev/docs/apps/launch/app-store-review | Open Shopify App Store submit page (new tab)Shopify App Store details |
| 16 | 86 | GeM | 70 | Link type unknown | gem.gov.in | Marketplaces and app stores | Free | Quick | High | Live, conditional | Register an authorized Indian business seller and list only real eligible your tool services with accurate catalogue details. | Requires authorized entity, Aadhaar/PAN, business PAN, incorporation and bank data; an external backlink is not guaranteed. | 2026-08-04 | Open GeM submit page (new tab)GeM details |
| 17 | 86 | Listen Notes | 80 | Dofollow | listennotes.com | Other opportunities | Free | Quick | High | Live, conditional | Submit a real your tool podcast RSS feed whose show website and episode notes naturally reference relevant tools. | Valid human-made podcast with substantive episodes only; low-quality or link-only feeds are rejected. | 2026-08-04 | Open Listen Notes submit page (new tab)Listen Notes details |
| 18 | 86 | Pipedream Registry | 70 | Link type unknown | pipedream.com | Marketplaces and app stores | Free | Quick | High | Live, conditional | Build your tool triggers/actions, submit them to the public registry by GitHub PR, and address review feedback. | Components must follow registry patterns; approved PRs become available in Pipedream Marketplace and workflows. | https://pipedream.com/docs/components/contributing | Open Pipedream Registry submit page (new tab)Pipedream Registry details |
| 19 | 86 | Player FM | 80 | Nofollow | player.fm | Other opportunities | Free | Quick | High | Live, conditional | Submit a genuine your tool podcast RSS feed or Apple Podcasts URL with accurate show-website and episode metadata. | Feed must be public, accessible and contain playable audio enclosures; do not submit a fake link-only feed. | 2026-08-04 | Open Player FM submit page (new tab)Player FM details |
| 20 | 86 | Pocket Casts | 70 | Link type unknown | pocketcasts.com | Other opportunities | Free | Quick | High | Live, conditional | Submit a real public your tool podcast RSS feed whose metadata and episode notes reference the official site naturally. | Requires a valid public RSS feed and genuine episodes; do not submit a shell or private feed as public. | 2026-08-05 | Open Pocket Casts submit page (new tab)Pocket Casts details |
| 21 | 86 | Sessionize | 70 | Link type unknown | sessionize.com | Profiles and entities | Free | Quick | High | Live, conditional | Create a founder expert profile and submit substantive talks about privacy-first tools, accessibility or web security. | Directory visibility should reflect real expertise and sessions; free event mode excludes promotional or commercial events. | 2026-08-05 | Open Sessionize submit page (new tab)Sessionize details |
| 22 | 86 | Terraform Registry | 80 | Link type unknown | registry.terraform.io | Developer registries | Free | Quick | High | Live, conditional | Publish a maintained Terraform provider for your tool stable API, or a genuinely reusable deployment module, with signed releases, generated documentation, examples, tests, and semantic versions. | A provider must use a public lowercase terraform-provider-* GitHub repository, signed cross-platform release assets, a valid manifest, docs, and SemVer tags. A module has separate public-repository, naming, structure, documentation, and tag requirements. Publish only a functional reusable artifact. | 2026-08-03 | Open Terraform Registry submit page (new tab)Terraform Registry details |
| 23 | 84 | Adobe Express Add-ons Marketplace | 95 | Nofollow | adobe.com | Marketplaces and app stores | Free | Moderate | High | Live, conditional | Build an your tool redaction, accessibility, image, or privacy add-on and submit its public listing. | Requires an Adobe Express add-on, complete metadata/legal/support information, quality review, and compliant AI behavior. | https://developer.adobe.com/express/add-ons/docs/guides/build/distribute/public-dist | Open Adobe Express Add-ons Marketplace submit page (new tab)Adobe Express Add-ons Marketplace details |
| 24 | 84 | Airbyte Connector Marketplace | 70 | Nofollow | airbyte.com | Marketplaces and app stores | Free | Moderate | High | Live, conditional | Create a real source connector that lets consenting users export appropriate your tool data, provide tests and documentation, and contribute it to Airbyte's public connector catalog. | Only build this when AltFTool has a stable documented API and a legitimate data-movement use case. Follow Airbyte connector specifications, CI, acceptance tests, review rules, and security disclosure guidance; do not submit a thin promotional connector. | 2026-08-03 | Open Airbyte Connector Marketplace submit page (new tab)Airbyte Connector Marketplace details |
| 25 | 84 | Amazon Music for Podcasters | 95 | Nofollow | podcasters.amazon.com | Other opportunities | Free | Moderate | High | Live, conditional | Submit and verify one genuine your tool podcast feed for distribution on Amazon Music and Audible. | RSS must expose a valid owner email; rights, license, and platform rules apply, and review may take up to one week. | 2026-08-05 | Open Amazon Music for Podcasters submit page (new tab)Amazon Music for Podcasters details |
| 26 | 84 | Castbox | 75 | Nofollow | castbox.fm | Other opportunities | Free | Moderate | High | Live, conditional | Add or claim a real your tool podcast in Creator Studio and complete channel, site and episode metadata. | Must own the show and verify access to its RSS email; publish original audio content. | 2026-08-04 | Open Castbox submit page (new tab)Castbox details |
| 27 | 84 | Chocolatey Community Repository | 75 | Nofollow | chocolatey.org | Developer registries | Free | Moderate | High | Live, conditional | Ship a real your tool CLI or desktop utility as a tested package with homepage, project and support metadata. | Requires distributable software, legal rights, repeatable install/uninstall, tests, malware scan and moderation. | 2026-08-04 | Open Chocolatey Community Repository submit page (new tab)Chocolatey Community Repository details |
| 28 | 84 | Datadog Integrations | 85 | Nofollow | datadoghq.com | Marketplaces and app stores | Free | Moderate | High | Live, conditional | Apply as a Datadog Technology Partner and build a production-grade integration that sends meaningful your tool telemetry, includes dashboards and documentation, and is useful to shared customers. | A real integration and Technology Partner application are required. Follow Datadog's telemetry, OAuth/API, asset, sandbox testing, security, review, and maintenance requirements. Marketplace commercial offers are a separate program. | 2026-08-03 | Open Datadog Integrations submit page (new tab)Datadog Integrations details |
| 29 | 84 | Discord App Directory | 95 | Nofollow | discord.com | Software directories | Free | Moderate | High | Live, conditional | Build 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-discovery | Open Discord App Directory submit page (new tab)Discord App Directory details |
| 30 | 84 | Docker Hub | 90 | Nofollow | docker.com | Developer registries | Free | Moderate | High | Live, conditional | Publish a maintained your tool CLI or server image with source, documentation, descriptions and canonical homepage links. | Ship a scanned, reproducible and maintained image; public presence is not Docker verification and fair-use limits apply. | 2026-08-05 official Docker Hub repository and usage documentation | Open Docker Hub submit page (new tab)Docker Hub details |
| 31 | 84 | Elastic Integrations | 85 | Nofollow | elastic.co | Marketplaces and app stores | Free | Moderate | High | Live, conditional | Build an Elastic package that ingests legitimate your tool logs, metrics, or traces and supplies mappings, pipelines, dashboards, documentation, sample data, and automated tests. | Use elastic-package, follow the package specification and ECS conventions, test locally, document permissions and supported versions, use lawful brand assets, and submit a reviewed pull request. Every accepted integration is listed publicly, so low-value promotional packages are inappropriate. | 2026-08-03 | Open Elastic Integrations submit page (new tab)Elastic Integrations details |
| 32 | 84 | Firefox Add-ons | 95 | Nofollow | mozilla.org | Marketplaces and app stores | Free | Moderate | High | Live, conditional | Build a useful privacy-preserving your tool extension, submit a signed build, and provide honest homepage, permissions and privacy disclosures. | Must meet Mozilla Add-on Policies, minimize permissions and pass review; thin promotional wrappers are unsuitable. | 2026-08-05 official Firefox Add-ons developer page | Open Firefox Add-ons submit page (new tab)Firefox Add-ons details |
| 33 | 84 | FOSSHub | 70 | Link type unknown | fosshub.com | Software directories | Free | Moderate | High | Live, conditional | Apply 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. | 2026-08-03 | Open FOSSHub submit page (new tab)FOSSHub details |
| 34 | 84 | GitBook Integration Marketplace | 80 | Nofollow | gitbook.com | Marketplaces and app stores | Free | Moderate | High | Live, conditional | Build a real your tool documentation/privacy integration, publish it as public, test it, then submit for GitBook review. | Requires a functional public GitBook integration, manifest metadata, external testing, screenshots and marketplace review. | https://gitbook.com/docs/developers/integrations/submit-your-app-for-review | Open GitBook Integration Marketplace submit page (new tab)GitBook Integration Marketplace details |
| 35 | 84 | Home Assistant Integrations | 85 | Link type unknown | home-assistant.io | Marketplaces and app stores | Free | Moderate | High | Live, conditional | Build and maintain a genuinely useful Home Assistant integration for a mature your tool service, including the required Python client library, tests, documentation, and a focused Core pull request. | Home Assistant rejects integrations used mainly as marketing; the connected product must already be released, established, and useful to its users. New integrations must meet at least Bronze quality requirements and pass review. If AltFTool is not yet established enough, publish a custom integration through GitHub/HACS instead. | 2026-08-03 | Open Home Assistant Integrations submit page (new tab)Home Assistant Integrations details |
| 36 | 84 | IFTTT Services | 90 | Nofollow | ifttt.com | Marketplaces and app stores | Free | Moderate | High | Live, conditional | Join the partner platform and create a secure your tool service with genuinely useful triggers, queries, and actions, pass endpoint tests and review, then publish helpful Applets for real user workflows. | AltFTool needs a stable API, authentication, privacy-safe endpoints, reliable production hosting, support, and ongoing maintenance. Follow IFTTT service-design, endpoint, brand, review, and launch rules; publication is for working integrations, not a brand-only profile. | 2026-08-03 | Open IFTTT Services submit page (new tab)IFTTT Services details |
| 37 | 84 | Kaggle | 90 | Nofollow | kaggle.com | Communities and forums | Free | Moderate | High | Live, conditional | Publish a clean your tool benchmark or open dataset plus a reproducible notebook, with proper licensing and the canonical project URL in the data card. | Only publish useful non-sensitive data/code; remove secrets and PII, document methodology, choose a valid license, and avoid promotional-only datasets. | https://www.kaggle.com/datasets | Open Kaggle submit page (new tab)Kaggle details |
| 38 | 84 | Mixcloud | 90 | Nofollow | mixcloud.com | Other opportunities | Free | Moderate | High | Live, conditional | Upload an original your tool audio explainer and place relevant resource links naturally in the show description. | Owned or licensed genuine audio only; no synthetic link-only upload, and basic-tier limits apply. | 2026-08-04 | Open Mixcloud submit page (new tab)Mixcloud details |
| 39 | 84 | New Relic Instant Observability | 90 | Link type unknown | newrelic.com | Other opportunities | Free | Moderate | High | Live, conditional | Create a useful quickstart for monitoring a real your tool deployment, with instrumentation instructions, a working data source, dashboards, alerts, documentation, and a GitHub contribution. | Telemetry must actually reach New Relic and the quickstart must help users monitor a real use case. Follow catalog schema, asset, testing, GitHub review, and maintenance requirements; do not submit a brand-only listing. | 2026-08-03 | Open New Relic Instant Observability submit page (new tab)New Relic Instant Observability details |
| 40 | 84 | Open Collective | 85 | Nofollow | opencollective.com | Profiles and entities | Free | Moderate | High | Live, conditional | Create a genuine your tool collective, complete its public profile, and add the official website plus repository/social links. | Use only for a real community or open-source project; keep team, purpose and financial details accurate. | 2026-08-05 | Open Open Collective submit page (new tab)Open Collective details |
| 41 | 84 | Openwall oss-security | 75 | Link type unknown | openwall.com | Software directories | Free | Moderate | High | Live, conditional | Post 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. | 2026-08-03 | Open Openwall oss-security submit page (new tab)Openwall oss-security details |
| 42 | 84 | PeerSpot | 70 | Link type unknown | peerspot.com | Software directories | Free | Moderate | High | Live, conditional | Contact 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. | 2026-08-03 | Open PeerSpot submit page (new tab)PeerSpot details |
| 43 | 84 | Podcast Addict | 70 | Link type unknown | podcastaddict.com | Other opportunities | Free | Moderate | High | Live, conditional | Submit a valid public your tool podcast feed and keep website and episode-link metadata accurate. | Feed must contain playable genuine episodes; directory review may take time. | 2026-08-04 | Open Podcast Addict submit page (new tab)Podcast Addict details |
| 44 | 84 | Podchaser | 75 | Nofollow | podchaser.com | Profiles and entities | Free | Moderate | High | Live, conditional | Claim a genuine your tool show, verify ownership, and complete its official website and creator details. | Ownership verification by feed email or token is required; never create a fake podcast for links. | 2026-08-04 | Open Podchaser submit page (new tab)Podchaser details |
| 45 | 84 | protocols.io | 75 | Link type unknown | protocols.io | Developer registries | Free | Moderate | High | Live, conditional | Publish a reproducible your tool testing, privacy-analysis or accessibility-evaluation method and cite relevant project resources. | Submissions must contribute genuine experimental or computational research methods; non-scientific promotion may be removed. | 2026-08-04 | Open protocols.io submit page (new tab)protocols.io details |
| 46 | 84 | Railway Templates | 70 | Link type unknown | railway.com | Marketplaces and app stores | Free | Moderate | High | Live, conditional | Publish a maintained your tool open-source service template with safe variables, health checks, documentation and a demo. | Must be a reusable deployable template; never include secrets and provide active maintenance. | 2026-08-04 | Open Railway Templates submit page (new tab)Railway Templates details |
| 47 | 84 | Splunkbase | 90 | Link type unknown | splunk.com | Marketplaces and app stores | Free | Moderate | High | Live, conditional | Build a useful Splunk app or add-on for legitimate your tool security, audit, or operational data; package it with clear documentation, icons, screenshots, release metadata, and support details. | The package must pass structural, antivirus, security, and AppInspect checks plus admin review. Choose hosted versus external directory listing carefully because the hosting mode cannot be changed after publication; keep the app maintained and accurately supported. | 2026-08-03 | Open Splunkbase submit page (new tab)Splunkbase details |
| 48 | 84 | Spotify for Creators | 95 | Nofollow | creators.spotify.com | Other opportunities | Free | Moderate | High | Live, conditional | Host or claim a genuine your tool show, verify the RSS email, and publish accurate episode notes with relevant HTTPS resources. | Ownership verification is required; links must support real episode content and display behavior varies by app. | 2026-08-05 | Open Spotify for Creators submit page (new tab)Spotify for Creators details |
| 49 | 84 | Swagger Studio | 75 | Nofollow | app.swaggerhub.com | Other opportunities | Free | Moderate | High | Live, conditional | Publish a real your tool OpenAPI definition publicly with an accurate description and external documentation URL. | API must be genuine and the spec valid; set visibility to public and publication status accurately, with no credentials in examples. | https://support.smartbear.com/swagger/studio/docs/en/manage-apis/publish-an-api.html | Open Swagger Studio submit page (new tab)Swagger Studio details |
| 50 | 84 | Vercel Integrations Marketplace | 90 | Link type unknown | vercel.com | Marketplaces and app stores | Free | Moderate | High | Live, conditional | Build an your tool Vercel integration, distribute its page, gain adoption, then apply for Marketplace visibility. | Community integrations can use direct pages; Marketplace listing generally requires 500 active installs and review. | https://vercel.com/docs/integrations/create-integration | Open Vercel Integrations Marketplace submit page (new tab)Vercel Integrations Marketplace details |
| 51 | 84 | Xero App Store | 85 | Nofollow | developer.xero.com | Marketplaces and app stores | Free | Moderate | High | Live, conditional | Build an your tool accounting/privacy integration, validate it with customers, certify and publish it in the Xero App Store. | Requires a real Xero integration and at least three customers for certification; technical and partner review apply. | https://developer.xero.com/static/otherfiles/Grow-with-the-Xero-App-Store.pdf | Open Xero App Store submit page (new tab)Xero App Store details |
| 52 | 81 | Apple Podcasts for Creators | 100 | Nofollow | podcasters.apple.com | Other opportunities | Free + paid tier | Moderate | High | Live, conditional | Submit a genuine your tool podcast RSS feed in Podcasts Connect and include the official show website in valid metadata. | Requires at least one episode, compliant RSS, artwork, content rights, technical validation, and Apple review. | 2026-08-05 | Open Apple Podcasts for Creators submit page (new tab)Apple Podcasts for Creators details |
| 53 | 81 | JetBrains Marketplace | 90 | Nofollow | plugins.jetbrains.com | Marketplaces and app stores | Free + paid tier | Moderate | High | Live, conditional | Build and upload a useful your tool IntelliJ-platform plugin with vendor, license, source, support and compatibility links. | Every plugin is reviewed and must pass compatibility, security and privacy checks; no promotional shell. | 2026-08-04 | Open JetBrains Marketplace submit page (new tab)JetBrains Marketplace details |
| 54 | 81 | Luma | 80 | Nofollow | luma.com | Other opportunities | Free + paid tier | Moderate | High | Live, conditional | Publish a real your tool webinar, demo or workshop with a contextual canonical link in its event details. | Event details and host identity must be genuine; do not create empty or duplicate promotional events. | 2026-08-05 | Open Luma submit page (new tab)Luma details |
| 55 | 80 | NASSCOM Membership | 70 | Link type unknown | nasscom.in | Other opportunities | Not stated | Moderate | High | Live, conditional | Apply using an India-registered your tool company/startup and provide the required entity and revenue documents. | Due diligence may take 10–15 business days and include documents, calls or a site visit; membership is not guaranteed. | 2026-08-04 | Open NASSCOM Membership submit page (new tab)NASSCOM Membership details |
| 56 | 80 | Workato Community Library | 75 | Link type unknown | workato.com | Communities and forums | Not stated | Moderate | High | Live, conditional | Build a tested Workato connector for legitimate your tool triggers and actions, add clear support and usage documentation, publish it to the community library, and provide simple successful community recipes. | The connector must pass Workato review and accept the developer agreement. Remove secrets, accurately choose open- or closed-source visibility, provide support contact details, meaningful tags and docs, test every action and trigger, and maintain shared versions; do not publish a promotional shell. | 2026-08-03 | Open Workato Community Library submit page (new tab)Workato Community Library details |
| 57 | 78 | Podnews | 70 | Sometimes dofollow | podnews.net | PR and source platforms | Free + paid tier | Involved | High | Live, conditional | Email a genuinely newsworthy your tool podcast or audio-tool launch story with concise facts, human artwork, and release timing. | No paid guest posts or link insertions; coverage is selective and only relevant to podcasting or on-demand audio. | 2026-08-05 | Open Podnews submit page (new tab)Podnews details |
| 58 | 74 | Apple App Store | 100 | Nofollow | developer.apple.com | Marketplaces and app stores | Paid | Moderate | High | Live, conditional | Ship 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 |
| 59 | 74 | Google Play | 100 | Nofollow | play.google.com | Marketplaces and app stores | Paid | Moderate | High | Live, conditional | Publish 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 |
| 60 | 74 | OpenID Foundation | 80 | Link type unknown | openid.net | Profiles and entities | Paid | Moderate | High | Live, conditional | Join 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. | 2026-08-04 | Open OpenID Foundation submit page (new tab)OpenID Foundation details |
| 61 | 74 | OWASP Foundation Projects | 85 | Link type unknown | owasp.org | Software directories | Paid | Moderate | High | Live, conditional | Offer 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. | 2026-08-03 | Open OWASP Foundation Projects submit page (new tab)OWASP Foundation Projects details |
| 62 | 68 | Apify Store | 70 | Nofollow | apify.com | Marketplaces and app stores | Free | Quick | Medium | Live, conditional | Build a working your tool automation Actor, publish it to the Store and include contextual project/documentation links. | Actor must perform a real automation use case, meet Store quality/security rules and avoid unauthorized scraping or data use. | https://docs.apify.com/actors/publishing | Open Apify Store submit page (new tab)Apify Store details |
| 63 | 68 | Astro Showcase | 70 | Link type unknown | astro.build | Design galleries | Free | Quick | Medium | Live, conditional | If an your tool property genuinely uses Astro, use the Submit site action to propose it for the public showcase. | Only submit an actual Astro-built production site; acceptance is curated and not guaranteed. | 2026-08-05 | Open Astro Showcase submit page (new tab)Astro Showcase details |
| 64 | 68 | CocoaPods | 75 | Link type unknown | cocoapods.org | Developer registries | Free | Quick | Medium | Live, conditional | Publish a genuine iOS or macOS your tool SDK and set homepage/source URLs in its podspec. | Requires a valid podspec and Trunk registration; package must be an actual reusable Apple-platform library. | https://guides.cocoapods.org/making/getting-setup-with-trunk.html | Open CocoaPods submit page (new tab)CocoaPods details |
| 65 | 68 | itch.io | 90 | Nofollow | itch.io | Other opportunities | Free | Quick | Medium | Live, conditional | Publish a genuine browser or desktop your tool utility with screenshots, documentation and an official-site link. | Content must be an actual downloadable or browser-run project and follow itch.io quality/content rules; not a generic directory listing. | https://itch.io/developers | Open itch.io submit page (new tab)itch.io details |
| 66 | 68 | Joomla Extensions Directory | 90 | Sometimes dofollow | joomla.org | Marketplaces and app stores | Free | Quick | Medium | Live, conditional | Build a functional your tool Joomla integration and submit a complete listing with an approved download route. | Actual installable extension required; GPL, trademark, update-system, security and listing checks apply. | 2026-08-05 official JED submission guide and entry checklist | Open Joomla Extensions Directory submit page (new tab)Joomla Extensions Directory details |
| 67 | 68 | PitchBook | 85 | Link type unknown | pitchbook.com | Profiles and entities | Free | Quick | Medium | Live, conditional | Search for your tool; submit an accurate profile update or request research coverage with authoritative company data and website. | Inclusion is not guaranteed and may require an account; do not exaggerate funding or company facts. | 2026-08-04 | Open PitchBook submit page (new tab)PitchBook details |
| 68 | 68 | Raycast Store | 70 | Link type unknown | raycast.com | Marketplaces and app stores | Free | Quick | Medium | Live, conditional | Build your tool actions as a Raycast extension and publish through the official GitHub PR workflow. | Extension must follow Store guidelines and generally be open-source under the required license. | https://developers.raycast.com/basics/publish-an-extension | Open Raycast Store submit page (new tab)Raycast Store details |
| 69 | 68 | ResearchGate | 95 | Nofollow | researchgate.net | Profiles and entities | Free | Quick | Medium | Live, conditional | An eligible active researcher can publish genuine your tool studies, code or datasets and add the official website where appropriate. | Membership is for active researchers; upload only owned research and respect publisher copyright. | 2026-08-04 | Open ResearchGate submit page (new tab)ResearchGate details |
| 70 | 68 | Upwork | 95 | Nofollow | upwork.com | Design galleries | Free | Quick | Medium | Live, conditional | If your tool maker genuinely offers related services, add the project as a detailed portfolio item with role, outcomes, visuals, and permitted project links. | Use only an authentic accepted freelancer profile; no contact details or brand-only backlink account, and follow portfolio link rules. | Official Upwork profile and portfolio guidance checked 2026-08-07 | Open Upwork submit page (new tab)Upwork details |
| 71 | 66 | Amazon Appstore | 95 | Nofollow | amazon.com | Marketplaces and app stores | Free | Moderate | Medium | Live, conditional | Submit a tested your app for compatible Amazon devices with complete descriptions, support links, privacy details and store assets. | Requires a real APK/AAB or VPKG, physical-device testing, policy compliance and review; not intended for generic promotional wrappers. | 2026-08-05 official Amazon Appstore submission guide | Open Amazon Appstore submit page (new tab)Amazon Appstore details |
| 72 | 66 | arXiv | 95 | Nofollow | arxiv.org | Developer registries | Free | Moderate | Medium | Live, conditional | Submit an original your tool-related technical paper and cite your tool only where it is genuinely the software or study subject. | Requires scholarly content in an accepted category, author registration and sometimes endorsement; promotional papers are inappropriate. | https://info.arxiv.org/help/submit/index.html | Open arXiv submit page (new tab)arXiv details |
| 73 | 66 | Backstage Plugin Directory | 70 | Link type unknown | backstage.io | Marketplaces and app stores | Free | Moderate | Medium | Live, conditional | Build and openly maintain a Backstage plugin that gives platform teams a real your tool workflow, then announce it through the community-plugins process and meet directory metadata requirements. | The plugin must solve a genuine developer-platform problem and follow Backstage's frontend/backend systems, design guidance, repository rules, testing, review, licensing, and release process. Create the recommended community issue before contributing; avoid a promotional shell. | 2026-08-03 | Open Backstage Plugin Directory submit page (new tab)Backstage Plugin Directory details |
| 74 | 66 | Docusaurus Showcase | 75 | Link type unknown | docusaurus.io | Design galleries | Free | Moderate | Medium | Live, conditional | If your tool documentation genuinely runs on Docusaurus, add the polished docs site through the official showcase discussion. | Framework use is mandatory; maintain a polished live site and follow the current GitHub discussion template. | 2026-08-05 | Open Docusaurus Showcase submit page (new tab)Docusaurus Showcase details |
| 75 | 66 | Flathub | 75 | Nofollow | flathub.org | Marketplaces and app stores | Free | Moderate | Medium | Live, conditional | Submit a mature graphical Linux your app with verified metadata, screenshots, homepage and source links. | Strictly requires a functional Flatpak; current Flathub policy disallows generative-AI-assisted submission code, content and review comments. | Official Flathub submission docs checked 2026-07-30 | Open Flathub submit page (new tab)Flathub details |
| 76 | 66 | Grav GPM | 70 | Link type unknown | getgrav.org | Marketplaces and app stores | Free | Moderate | Medium | Live, conditional | Create a useful Grav privacy or security plugin and request inclusion through the official repository issue process. | Team reviews code and metadata against project standards; blueprint, release and homepage fields must be accurate. | 2026-08-05 official Grav GPM documentation | Open Grav GPM submit page (new tab)Grav GPM details |
| 77 | 66 | HackMD | 75 | Nofollow | hackmd.io | Developer registries | Free | Moderate | Medium | Live, conditional | Create a substantive public tutorial or implementation note that uses your tool and includes a contextual source/product link. | Public notes must provide original useful content; avoid duplicated marketing copy and disclose affiliation where appropriate. | https://hackmd.io/c/tutorials/%2Fs%2Fhow-to-publish-note | Open HackMD submit page (new tab)HackMD details |
| 78 | 66 | Harvard Dataverse | 95 | Link type unknown | dataverse.harvard.edu | Developer registries | Free | Moderate | Medium | Live, conditional | Deposit a genuine your tool benchmark, evaluation dataset or reproducibility bundle with project URL in the description/metadata. | Account and appropriate collection permissions are required; data must have lawful sharing rights and complete citation metadata. | https://guides.dataverse.org/en/latest/user/dataset-management.html | Open Harvard Dataverse submit page (new tab)Harvard Dataverse details |
| 79 | 66 | Homebrew | 75 | Link type unknown | brew.sh | Other opportunities | Free | Moderate | Medium | Live, conditional | After releasing a real your tool CLI or native app, submit a tested formula or cask with its canonical homepage. | Formula must meet open-source, stability, build and test rules; casks need a supported upstream binary and notability may affect acceptance. | 2026-08-05 official Homebrew Adding Software and Acceptable Formulae guides | Open Homebrew submit page (new tab)Homebrew details |
| 80 | 66 | Huawei AppGallery | 90 | Nofollow | developer.huawei.com | Marketplaces and app stores | Free | Moderate | Medium | Live, conditional | Publish an your tool Android app through AppGallery Connect with official site, support and privacy URLs. | Identity verification, app package, localized metadata, privacy policy and AppGallery review are required. | https://developer.huawei.com/consumer/en/appgallery/ | Open Huawei AppGallery submit page (new tab)Huawei AppGallery details |
| 81 | 66 | Internet Archive | 95 | Nofollow | archive.org | Software directories | Free | Moderate | Medium | Live, conditional | Archive 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 |
| 82 | 66 | Nixpkgs | 75 | Link type unknown | nixos.org | Developer registries | Free | Moderate | Medium | Live, conditional | Package a real your tool CLI or desktop utility, set accurate homepage metadata, test it, and submit the Nixpkgs pull request. | Package must build reproducibly, meet Nixpkgs standards and pass review; the homepage shown on search.nixos.org must be canonical. | 2026-08-05 official Nixpkgs manual and NixOS contribution guide | Open Nixpkgs submit page (new tab)Nixpkgs details |
| 83 | 66 | Open Science Framework | 85 | Nofollow | osf.io | Developer registries | Free | Moderate | Medium | Live, conditional | Create a genuine your tool study, reproducibility project or benchmark workspace with project links and public materials. | Use only for bona fide research or open project materials; accurate contributors, licensing and non-promotional descriptions are expected. | https://help.osf.io/article/353-welcome-to-projects | Open Open Science Framework submit page (new tab)Open Science Framework details |
| 84 | 66 | Opera Add-ons | 90 | Nofollow | opera.com | Marketplaces and app stores | Free | Moderate | Medium | Live, conditional | Package a useful your tool browser feature as an Opera extension and submit it for moderation. | Extension needs one clear purpose, complete metadata, policy compliance, and moderator approval. | https://help.opera.com/en/extensions/publishing-guidelines/ | Open Opera Add-ons submit page (new tab)Opera Add-ons details |
| 85 | 66 | Pulumi Registry | 75 | Link type unknown | pulumi.com | Developer registries | Free | Moderate | Medium | Live, conditional | Publish a real multi-language Pulumi provider or component for deploying or configuring your tool, with binaries, SDK packages, schema, documentation, examples, tests, and a registry pull request. | Public Registry packages require a genuine executable package, public source, versioned binaries, SDK distribution, schema and complete docs. Pulumi reviews the registry PR; package names must be unique and releases must remain maintained. Do not build this solely for a backlink. | 2026-08-03 | Open Pulumi Registry submit page (new tab)Pulumi Registry details |
| 86 | 66 | Samsung Galaxy Store | 90 | Nofollow | developer.samsung.com | Marketplaces and app stores | Free | Moderate | Medium | Live, conditional | Distribute an your tool Android or Galaxy app and add its official website and support information. | Requires Samsung account, Seller Portal registration, commercial seller status and Galaxy Store review. | https://developer.samsung.com/galaxy-store/prepare.html | Open Samsung Galaxy Store submit page (new tab)Samsung Galaxy Store details |
| 87 | 66 | SSRN | 90 | Link type unknown | ssrn.com | Publishing platforms | Free | Moderate | Medium | Live, conditional | Create a truthful author account and submit a substantive your tool privacy, security or accessibility working paper with legitimate citations. | Scholarly work only; accurate authors and affiliations, English title/abstract, PDF, copyright permission and applicable ethics/privacy rules are required. | 2026-08-04 | Open SSRN submit page (new tab)SSRN details |
| 88 | 66 | Trello Power-Up Directory | 95 | Nofollow | trello.com | Software directories | Free | Moderate | Medium | Live, conditional | Build 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 |
| 89 | 66 | Visual Studio Marketplace | 95 | Nofollow | visualstudio.com | Marketplaces and app stores | Free | Moderate | Medium | Live, conditional | Build and test a useful your tool Visual Studio or Azure DevOps extension, then publish it with truthful homepage, repository and overview metadata. | Requires a real functional extension, publisher account, valid package and policy compliance; placeholder or link-only submissions are unsuitable. | 2026-08-05 official Microsoft Learn Visual Studio Marketplace publishing guide | Open Visual Studio Marketplace submit page (new tab)Visual Studio Marketplace details |
| 90 | 65 | Academia.edu | 90 | Nofollow | academia.edu | Profiles and entities | Free + paid tier | Quick | Medium | Live, conditional | Publish genuine authored your tool research and add matching project or supporting-material URLs in the paper metadata. | Use authentic authored literature or research; external links must support the paper, not act as unrelated promotion. | 2026-08-04 | Open Academia.edu submit page (new tab)Academia.edu details |
| 91 | 65 | Freelancer.com | 90 | Nofollow | freelancer.com | Design galleries | Free + paid tier | Quick | Medium | Live, conditional | Use an authentic maker profile to publish an your tool portfolio piece containing original images, article, code, video, or audio samples. | Use only when the person genuinely offers services; publish owned work and avoid profile keyword stuffing. | Official Freelancer.com portfolio and profile guidance checked 2026-08-07 | Open Freelancer.com submit page (new tab)Freelancer.com details |
| 92 | 63 | Buzzsprout | 85 | Sometimes dofollow | buzzsprout.com | Other opportunities | Free + paid tier | Moderate | Medium | Live, conditional | Launch a real your tool educational podcast, complete its public site, and cite relevant tools and sources in useful show notes. | Choose one primary host; publish original episodes and do not duplicate feeds solely to manufacture links. | 2026-08-05 | Open Buzzsprout submit page (new tab)Buzzsprout details |
| 93 | 63 | Cargo | 75 | Sometimes dofollow | cargo.site | Other opportunities | Free + paid tier | Moderate | Medium | Live, conditional | Create an authentic your tool or founder design portfolio with substantive case studies and contextual links to shipped tools. | Use only real design/product work; public pages may be indexed, but do not create a thin backlink microsite. | 2026-08-04 | Open Cargo submit page (new tab)Cargo details |
| 94 | 63 | Jenkins Plugin Site | 85 | Nofollow | jenkins.io | Marketplaces and app stores | Free + paid tier | Moderate | Medium | Live, conditional | Build a secure Jenkins plugin that performs a real your tool CI, privacy, or accessibility workflow; host it through Jenkins project infrastructure and publish maintained releases and documentation. | Follow Jenkins security guidance, style, testing, hosting, repository-permission, artifact, documentation, release, compatibility, and governance requirements. All current update-center plugins appear on the public plugin site; do not create a link-only or unmaintained plugin. | 2026-08-03 | Open Jenkins Plugin Site submit page (new tab)Jenkins Plugin Site details |
| 95 | 63 | JetBrains Marketplace | 90 | Nofollow | jetbrains.com | Marketplaces and app stores | Free + paid tier | Moderate | Medium | Live, conditional | Package your tool developer/security utilities as a compatible JetBrains plugin and upload it. | Requires vendor agreement/profile, compatible signed plugin, metadata, and manual approval. | https://plugins.jetbrains.com/docs/marketplace/uploading-a-new-plugin.html | Open JetBrains Marketplace submit page (new tab)JetBrains Marketplace details |
| 96 | 63 | Meetup | 90 | Nofollow | meetup.com | Communities and forums | Free + paid tier | Moderate | Medium | Live, conditional | Run a genuine privacy, online-tools or accessibility community and reference your tool only where it supports the group or event. | Requires an active group and real events; Starter limits attendance and frequency, and organizer plans auto-renew. | 2026-08-05 | Open Meetup submit page (new tab)Meetup details |
| 97 | 63 | Ring App Store | 95 | Nofollow | developer.amazon.com | Marketplaces and app stores | Free + paid tier | Moderate | Medium | Live, conditional | Build a legitimate Ring-device privacy/security integration, register, test, certify and publish it. | Requires identity verification, a real Ring API integration, device/sandbox testing, security and privacy certification. | https://developer.amazon.com/docs/ring/get-started.html | Open Ring App Store submit page (new tab)Ring App Store details |
| 98 | 63 | SlideServe | 70 | Nofollow | slideserve.com | Publishing platforms | Free + paid tier | Moderate | Medium | Live, conditional | Upload a useful original presentation on privacy, accessibility, or tool workflows with a natural your tool reference. | Only publish content you own; use a complete educational deck, accurate metadata, and no keyword stuffing. | 2026-08-05 | Open SlideServe submit page (new tab)SlideServe details |
| 99 | 62 | Works with SmartThings | 80 | Link type unknown | smartthings.com | Marketplaces and app stores | Not stated | Moderate | Medium | Live, conditional | Pursue only if your tool launches a real cloud-connected IoT privacy product; certify it and publish a truthful product profile. | Not a generic website listing; business verification, a working integration, testing, privacy compliance, and certification are required. | Official SmartThings certification overview checked 2026-08-07 | Open Works with SmartThings submit page (new tab)Works with SmartThings details |
| 100 | 60 | Yumpu | 85 | Nofollow | yumpu.com | Publishing platforms | Free + paid tier | Involved | Medium | Live, conditional | Publish an original your tool guide or annual privacy report and add useful contextual website links through the Hotspot Editor. | Use substantial original content, not a thin promotional PDF; keep links editorially relevant. | 2026-08-05 | Open Yumpu submit page (new tab)Yumpu details |
Four steps that work for a new site, a SaaS or a side project. No paid link packages, nothing that risks a penalty.
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.
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.
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.
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
Every row here starts as a line in a sheet, gets normalised into one of 16 groups, scored for cost, effort and impact, and written up with the steps to actually submit. The floor below represents that pipeline.
Open the sheet viewAn illustration of the AltF Backlinks floor: opportunities sourced at the back, vetted for cost and effort by the engineering pod, written up for outreach by the design pod, then tracked to placement along a line.
One-shot launches where timing and preparation decide the outcome.
Publications that accept contributed articles. Slow and editorial, but the links are earned.
Fast-growing listings specifically for AI-powered tools.
Extension, plugin and integration stores. Real review processes, real distribution.
Startup listings, beta lists and founder media.
General tool and software catalogues with real search traffic.
B2B review sites. Slow to approve, strong once live.
Package, image and docs hosting that carries real authority.
Showcases judged on craft. A good screenshot matters more than copy.
Write once, link back. Editorial standards vary widely.
Get quoted or distribute a release. Slower, higher ceiling.
Company and local listings. Unglamorous, consistently indexed.
Owned pages you control: company, founder, knowledge-panel entities.
Answer real questions. Never drop a bare link.
Brand surface and referral traffic more than link equity.
Everything that does not fit the buckets above.