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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 | 86 | Ansible Galaxy | 80 | Nofollow | ansible.com | Developer registries | Free | Quick | High | Not submitted | Create a tested Ansible collection for supported your tool deployment or audit automation, complete galaxy.yml, version it, and publish with a Galaxy token. | Publish only maintained, useful collection content with accurate metadata and versioning; acceptance does not guarantee discovery, referrals, or followed links. | 2026-08-03 | Open Ansible Galaxy submit page (new tab)Ansible Galaxy details |
| 2 | 86 | Apache Airflow Ecosystem | 90 | Nofollow | airflow.apache.org | Other opportunities | Free | Quick | High | Verified live | Create a real your tool Airflow provider with hooks/operators and documentation metadata, publish it, then add it to Airflow’s Ecosystem page by PR. | Provider must implement apache_airflow_provider metadata, use unique connection types, be documented and packaged; ecosystem PR is evaluated for community usefulness. | 2026-08-05 — https://airflow.apache.org/docs/apache-airflow-providers/howto/create-custom-providers.html | Open Apache Airflow Ecosystem submit page (new tab)Apache Airflow Ecosystem details |
| 3 | 86 | Buildkite Plugins Directory | 70 | Link type unknown | buildkite.com | Marketplaces and app stores | Free | Quick | High | Verified live | Build a pipeline plugin that runs your tool checks on selected artifacts and posts configurable pass, warn, or fail annotations. | Use a public repository with the required suffix, valid plugin.yml, hooks, tests, and README; add the official topic for directory sync. | Official Buildkite plugin writing documentation checked 2026-08-07 | Open Buildkite Plugins Directory submit page (new tab)Buildkite Plugins Directory details |
| 4 | 86 | Capterra | 90 | Nofollow | capterra.com | Software directories | Free | Quick | High | Not submitted | List product under software categories. | Part of Gartner Digital Markets; good B2B fit. | 2026-07-30 | Open Capterra submit page (new tab)Capterra details |
| 5 | 86 | CodePen | 90 | Nofollow | codepen.io | Profiles and entities | Free | Quick | High | Verified live | Build an original interactive demo of an your tool utility, document the use case in Pen Details, and add your tool as one of the public profile links. | Public Pens are searchable and MIT-licensed; publish original useful code, not a blank redirect or copied landing page. | https://blog.codepen.io/docs/getting-around/your-profile/ | Open CodePen submit page (new tab)CodePen details |
| 6 | 86 | CodeSandbox | 90 | Nofollow | codesandbox.io | Profiles and entities | Free | Quick | High | Not submitted | Publish a small open demo that explains one your tool algorithm or UI pattern and add the product website to the founder profile links. | The sandbox must run and provide reusable technical value; public projects and profile links are UGC and may be nofollowed. | 2026-08-03 | Open CodeSandbox submit page (new tab)CodeSandbox details |
| 7 | 86 | daily.dev | 75 | Nofollow | daily.dev | Profiles and entities | Free | Quick | High | Not submitted | Complete the founder's developer profile, add your tool as real project experience, and publish useful privacy or security engineering posts with contextual links. | Participate as a genuine community member; avoid promotional link dumps, and do not assume any particular search-link attribute. | 2026-08-03 | Open daily.dev submit page (new tab)daily.dev details |
| 8 | 86 | DokuWiki Plugins | 70 | Nofollow | dokuwiki.org | Marketplaces and app stores | Free | Quick | High | Verified live | Build a DokuWiki privacy, redaction, accessibility, or secure-export plugin, publish its code and create the canonical plugin page used by the extension directory. | Must be an installable maintained plugin with accurate compatibility, download, source, license, and security information. | Official DokuWiki extension pages and plugin wizard checked 2026-08-05 | Open DokuWiki Plugins submit page (new tab)DokuWiki Plugins details |
| 9 | 86 | Eclipse Marketplace | 90 | Nofollow | eclipse.org | Marketplaces and app stores | Free | Quick | High | Verified live | Publish a functional Eclipse plugin for an your tool developer use case, then create a complete marketplace listing with official support and source links. | Requires an Eclipse account, a working installable plugin and compliance with marketplace content and trademark rules. | 2026-08-03 | Open Eclipse Marketplace submit page (new tab)Eclipse Marketplace details |
| 10 | 86 | Fourthwall | 70 | Nofollow | fourthwall.com | Other opportunities | Free | Quick | High | Verified live | Offer a substantial free privacy checklist, accessibility workbook, or safety template from a branded storefront and link your tool only as supporting documentation. | Publish useful rights-cleared products rather than thin promotional downloads; payment rates vary and the free plan has listing limits. | Official Fourthwall digital-products, pricing, and terms pages checked 2026-08-07 | Open Fourthwall submit page (new tab)Fourthwall details |
| 11 | 86 | Framer Marketplace | 85 | Nofollow | framer.com | Marketplaces and app stores | Free | Quick | High | Verified live | Create a functional Framer plugin for accessibility, metadata, responsive-content, or privacy checks and publish it with your tool documentation. | Test in fresh projects, package the real plugin, provide accurate screenshots and descriptions, and maintain every published version. | Official Framer plugin publishing documentation checked 2026-08-07 | Open Framer Marketplace submit page (new tab)Framer Marketplace details |
| 12 | 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 |
| 13 | 86 | GitHub | 95 | Nofollow | github.com | Developer registries | Free | Quick | High | Not submitted | Create org/repo README linking your tool; submit to relevant awesome lists. | Only publish original/clean licensed code; no fake stars. | 2026-07-30 | Open GitHub submit page (new tab)GitHub details |
| 14 | 86 | Hexo Plugin List | 75 | Link type unknown | hexo.io | Marketplaces and app stores | Free | Quick | High | Verified live | Create a functional Hexo plugin for a relevant your tool capability, publish the package, then add its record to Hexo's official plugin data repository. | Plugin must be genuinely useful, maintained and correctly packaged; submit the required YAML metadata through the documented contribution path, not a promotional-only entry. | 2026-08-05 | Open Hexo Plugin List submit page (new tab)Hexo Plugin List details |
| 15 | 86 | HSTS Preload List | 70 | Link type unknown | hstspreload.org | Other opportunities | Free | Quick | High | Not submitted | Audit every your tool subdomain, stage HSTS safely, then submit the base domain only after long-term HTTPS readiness is proven. | Requires a valid certificate, HTTP-to-HTTPS redirect, HTTPS on every subdomain, and HSTS max-age of at least one year with includeSubDomains and preload. Inclusion is difficult and slow to undo, so do not submit before a staged rollout. | 2026-08-03 | Open HSTS Preload List submit page (new tab)HSTS Preload List details |
| 16 | 86 | Indie Hackers | 75 | Nofollow | indiehackers.com | Startup directories | Free | Quick | High | Not submitted | Add product and post build-in-public story with honest numbers. | Avoid link-drop; founder story performs better. | 2026-07-30 | Open Indie Hackers submit page (new tab)Indie Hackers details |
| 17 | 86 | Keybase | 75 | Nofollow | keybase.io | Startup directories | Free | Quick | High | Not submitted | Create the founder Keybase profile and cryptographically prove control of your tool so the public identity record links the verified domain. | The founder must control the website or DNS proof and keep account keys secure; this verifies identity rather than acting as a marketing listing. | 2026-08-03 | Open Keybase submit page (new tab)Keybase details |
| 18 | 86 | Kompass | 75 | Sometimes dofollow | kompass.com | Business directories | Free | Quick | High | Not submitted | Register the legal company and complete a global B2B profile with accurate IT services, contact data, and your tool website. | Provide verifiable company details and choose the correct Kompass classifications; enhanced promotion is paid. | 2026-08-03 | Open Kompass submit page (new tab)Kompass details |
| 19 | 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 |
| 20 | 86 | NuGet | 85 | Nofollow | nuget.org | Developer registries | Free | Quick | High | Verified live | Publish a real .NET library or CLI package with ProjectUrl, readme, repository and license metadata. | Requires a Microsoft account and API key; packages undergo validation and indexing. | Official Microsoft NuGet docs checked 2026-07-30 | Open NuGet submit page (new tab)NuGet details |
| 21 | 86 | Obsidian Community Plugins | 75 | Link type unknown | obsidian.md | Marketplaces and app stores | Free | Quick | High | Verified live | Build a unique and useful Obsidian plugin, create valid releases and submit it to the community plugin directory. | Requires a working plugin, release artifacts, documentation and compliance with Obsidian developer policies. | Official Obsidian submission docs checked 2026-07-30 | Open Obsidian Community Plugins submit page (new tab)Obsidian Community Plugins details |
| 22 | 86 | Open Hub | 75 | Nofollow | openhub.net | Profiles and entities | Free | Quick | High | Verified live | Add or claim a genuine open-source your tool project and complete its description, code locations, tags and official homepage. | FOSS projects only; connect real public source history and avoid duplicate or abandoned shell projects. | Official live Open Hub project directory checked 2026-07-30 | Open Open Hub submit page (new tab)Open Hub details |
| 23 | 86 | OpenTelemetry Registry | 75 | Link type unknown | opentelemetry.io | Marketplaces and app stores | Free | Quick | High | Verified live | Add native OpenTelemetry support or build a useful your tool instrumentation or utility, then submit its registry metadata and documentation links. | Must fit an allowed registry type, have real implementation and enablement docs, use accurate licence and marketing metadata, and stay maintained. | 2026-08-05 — https://opentelemetry.io/ecosystem/registry/adding/ | Open OpenTelemetry Registry submit page (new tab)OpenTelemetry Registry details |
| 24 | 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 |
| 25 | 86 | Pipedrive Marketplace | 85 | Link type unknown | pipedrive.com | Marketplaces and app stores | Free | Quick | High | Verified live | Build a Pipedrive OAuth integration for safe note export, duplicate cleanup, or PII auditing and submit a unique your tool listing. | OAuth and testing are mandatory; accept the partner agreement and provide working legal, support, and production URLs. | Official Pipedrive app development and marketplace guidance checked 2026-08-07 | Open Pipedrive Marketplace submit page (new tab)Pipedrive Marketplace details |
| 26 | 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 |
| 27 | 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 |
| 28 | 86 | PowerShell Gallery | 75 | Nofollow | powershellgallery.com | Developer registries | Free | Quick | High | Verified live | Publish a stable your tool module or script with ProjectURI, LicenseURI, tags, help and examples. | Requires an account and API key; pass PowerShell Gallery validation and avoid placeholder packages. | Official Microsoft publishing docs checked 2026-07-30 | Open PowerShell Gallery submit page (new tab)PowerShell Gallery details |
| 29 | 86 | pub.dev | 85 | Link type unknown | pub.dev | Developer registries | Free | Quick | High | Verified live | Publish an your tool Dart package with homepage, repository, issue tracker, documentation and a complete readme. | Must satisfy pub.dev policy and quality checks; a verified publisher is preferable for a branded package. | Official Dart publishing docs checked 2026-07-30 | Open pub.dev submit page (new tab)pub.dev details |
| 30 | 86 | RingCentral App Gallery | 85 | Link type unknown | ringcentral.com | Marketplaces and app stores | Free | Quick | High | Verified live | Build a public RingCentral integration around call-note privacy or safe file sharing and complete the profile with your tool documentation, privacy, and support links. | A working public app is mandatory; screenshots must show the integration, and the profile needs installation, support, privacy, and legal details. | Official RingCentral App Gallery promotion documentation checked 2026-08-07 | Open RingCentral App Gallery submit page (new tab)RingCentral App Gallery details |
| 31 | 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 |
| 32 | 86 | Speaker Deck | 85 | Nofollow | speakerdeck.com | Publishing platforms | Free | Quick | High | Verified live | Upload an original conference-quality PDF deck explaining privacy-safe tooling or accessibility testing, with a useful description, correct category, references, and an honest profile link. | Upload a real educational presentation, not a sales brochure. Free decks are public and downloadable; private or password-protected sharing requires Pro, and all content must be owned or licensed. | 2026-08-03 | Open Speaker Deck submit page (new tab)Speaker Deck details |
| 33 | 86 | Startup Grind | 70 | Link type unknown | startupgrind.com | Startup directories | Free | Quick | High | Verified live | Join a relevant chapter, complete the founder profile, attend suitable events, and share your tool only in genuine networking context. | Choose a relevant chapter or event and follow organizer rules; member access is not a broadcast or mass-messaging channel. | Official Startup Grind chapter community path checked 2026-08-07 | Open Startup Grind submit page (new tab)Startup Grind details |
| 34 | 86 | Tableau Public | 90 | Nofollow | public.tableau.com | Profiles and entities | Free | Quick | High | Verified live | Publish an original dashboard using public your tool benchmark or ecosystem data and add an appropriate project permalink in workbook details. | Everything published is publicly accessible and may be downloadable; never include secrets, private analytics, user-level records, or confidential data. | https://help.tableau.com/current/pro/desktop/en-gb/publish_workbooks_tableaupublic.htm | Open Tableau Public submit page (new tab)Tableau Public details |
| 35 | 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 |
| 36 | 86 | TYPO3 Extension Repository | 75 | Link type unknown | typo3.org | Marketplaces and app stores | Free | Quick | High | Verified live | Build a TYPO3 backend extension for selected content or media PII, metadata, and accessibility checks. | Register a unique extension key and provide public source, documentation, security policy, semantic versions, and maintained releases. | Official TYPO3 Extension Repository publishing documentation checked 2026-08-07 | Open TYPO3 Extension Repository submit page (new tab)TYPO3 Extension Repository details |
| 37 | 86 | Umbraco Marketplace | 75 | Link type unknown | umbraco.com | Marketplaces and app stores | Free | Quick | High | Verified live | Create an your tool Umbraco integration package and point its NuGet project URL plus documentation to your tool. | The NuGet package needs the marketplace tag, supported Umbraco version metadata, documentation, and optional marketplace manifest. | Official Umbraco Marketplace package listing documentation checked 2026-08-07 | Open Umbraco Marketplace submit page (new tab)Umbraco Marketplace details |
| 38 | 86 | UN SDG Actions Platform | 90 | Link type unknown | sdgs.un.org | Startup directories | Free | Quick | High | Verified live | Register a concrete ongoing your tool initiative with measurable milestones, dates, resources, SDG targets, partners and website evidence. | Action must be specific, measurable, achievable, resource-based, time-bound and ongoing; not a proposal, completed activity or organization profile. | 2026-08-05 — https://sdgs.un.org/partnerships/acceleration-actions/register | Open UN SDG Actions Platform submit page (new tab)UN SDG Actions Platform details |
| 39 | 86 | Webex App Hub | 90 | Link type unknown | webex.com | Marketplaces and app stores | Free | Quick | High | Verified live | Build a production Webex integration or bot for deliberate sharing of your tool checklists or sanitized files, then submit its branded App Hub profile. | Must be production-ready, use minimum scopes, avoid Cisco trademark misuse, and provide complete support and marketing material. | Official Webex App Hub submission documentation checked 2026-08-07 | Open Webex App Hub submit page (new tab)Webex App Hub details |
| 40 | 86 | Wikimedia Toolhub | 95 | Link type unknown | toolhub.wikimedia.org | Software directories | Free | Quick | High | Verified live | Build a tool that genuinely interacts with Wikimedia, publish accurate toolinfo.json metadata, and register it through Toolhub UI, crawler, or API. | Must serve Wikimedia projects; Wikimedia login is required and submitted metadata is CC0; unrelated utilities do not qualify. | Official Wikimedia developer search and Toolhub documentation checked 2026-08-05 | Open Wikimedia Toolhub submit page (new tab)Wikimedia Toolhub details |
| 41 | 86 | WordPress.org Plugins | 95 | Nofollow | wordpress.org | Marketplaces and app stores | Free | Quick | High | Not submitted | Submit your tool widgets plugin after /embed is live. | Credit link must be opt-in/default hidden; GPL-compatible plugin. | 2026-07-30 | Open WordPress.org Plugins submit page (new tab)WordPress.org Plugins details |
| 42 | 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 |
| 43 | 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 |
| 44 | 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 |
| 45 | 84 | Arch User Repository | 80 | Nofollow | aur.archlinux.org | Developer registries | Free | Moderate | High | Verified live | Create and maintain a PKGBUILD for an installable your tool Linux release with the upstream URL and correct source checksums. | No duplicates, placeholders or binary uploads; package must be useful, x86_64-compatible and maintained. | Official ArchWiki submission guide checked 2026-07-30 | Open Arch User Repository submit page (new tab)Arch User Repository details |
| 46 | 84 | Asana App Directory | 90 | Nofollow | asana.com | Marketplaces and app stores | Free | Moderate | High | Verified live | Build an OAuth Asana component that launches an your tool audit or attaches a generated report, then submit complete company and support details. | The app must be shared to any workspace, use OAuth where required, include complete listing details, and pass Asana review. | Official Asana app sharing documentation checked 2026-08-07 | Open Asana App Directory submit page (new tab)Asana App Directory details |
| 47 | 84 | Auth0 Marketplace | 85 | Nofollow | auth0.com | Marketplaces and app stores | Free | Moderate | High | Not submitted | Create a tested Auth0 Action that invokes a relevant your tool privacy or security workflow and submit through the Marketplace Partner Portal. | Requires functional testing, documentation, unit tests, and Auth0 security/compliance review; approval and any backlink attributes are not guaranteed. | 2026-08-03 | Open Auth0 Marketplace submit page (new tab)Auth0 Marketplace details |
| 48 | 84 | Bing for Business | 95 | Nofollow | bing.com | Business directories | Free | Moderate | High | Verified live | Claim and verify your tool’s legitimate business entity or location and keep name, address, phone, and website consistent. | Business verification and eligibility rules apply; do not create a fake address for an online-only SaaS. | https://support.microsoft.com/en-us/bing/add-and-manage-your-business-listing | Open Bing for Business submit page (new tab)Bing for Business details |
| 49 | 84 | Bioconductor | 75 | Link type unknown | bioconductor.org | Review platforms | Free | Moderate | High | Verified live | If your tool ships a legitimate genomics or bioinformatics utility, package it for R with complete vignettes and submit it for review. | Only in-scope, scientifically useful and maintainable packages qualify; peer review and continuous checks apply. | 2026-08-03 | Open Bioconductor submit page (new tab)Bioconductor details |
| 50 | 84 | Bitrise Step Library | 70 | Link type unknown | bitrise.io | Other opportunities | Free | Moderate | High | Verified live | Build a Bitrise Step that runs your tool secret, privacy, or accessibility checks on explicitly chosen build artifacts. | Provide step.yml, implementation, README, declared inputs and outputs, dependencies, and tests; pass Step Library review. | Official Bitrise custom Step development documentation checked 2026-08-07 | Open Bitrise Step Library submit page (new tab)Bitrise Step Library details |
| 51 | 84 | Blender Extensions | 85 | Nofollow | blender.org | Marketplaces and app stores | Free | Moderate | High | Verified live | Build a practical Blender add-on for media privacy, metadata or workflow automation and upload its tested extension package with documentation. | Requires a Blender ID, valid manifest, tested ZIP and moderation approval; extension licensing and online-access declarations must be accurate. | 2026-08-03 | Open Blender Extensions submit page (new tab)Blender Extensions details |
| 52 | 84 | Canva Apps Marketplace | 95 | Nofollow | canva.com | Marketplaces and app stores | Free | Moderate | High | Verified live | Build a Canva app that sends chosen design assets to an your tool accessibility, metadata, or privacy check and returns useful results inside Canva. | The app must be unique, production-hosted, identity-verified, compliant with Canva rules, and pass functionality and quality review. | Official Canva app review documentation checked 2026-08-07 | Open Canva Apps Marketplace submit page (new tab)Canva Apps Marketplace details |
| 53 | 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 |
| 54 | 84 | Chocolatey Community Repository | 75 | Nofollow | community.chocolatey.org | Developer registries | Free | Moderate | High | Verified live | Package a genuine your tool Windows desktop or CLI release and set project, documentation and package-source URLs. | Automated checks and moderator review apply; prove redistribution rights and maintain install and uninstall behavior. | Official Chocolatey docs checked 2026-07-30 | Open Chocolatey Community Repository submit page (new tab)Chocolatey Community Repository details |
| 55 | 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 |
| 56 | 84 | CircleCI Orb Registry | 80 | Link type unknown | circleci.com | Developer registries | Free | Moderate | High | Verified live | Publish a tested public your tool orb for privacy, secret, or document-safety checks with a homepage URL and usage examples. | Requires a CircleCI organization namespace, GitHub repository, MIT-licensed public orb, semantic releases, tests, and ongoing maintenance. | 2026-08-05 — https://circleci.com/docs/creating-orbs | Open CircleCI Orb Registry submit page (new tab)CircleCI Orb Registry details |
| 57 | 84 | Confluent Marketplace | 85 | Nofollow | confluent.io | Marketplaces and app stores | Free | Moderate | High | Verified live | Build a Kafka Connect source or sink that sends only explicitly selected records to your tool privacy or redaction checks and returns structured results. | Submit a valid component archive; community components need an accepted open-source or royalty-free licence, and Confluent review applies. | Official Confluent Hub contribution documentation checked 2026-08-07 | Open Confluent Marketplace submit page (new tab)Confluent Marketplace details |
| 58 | 84 | Coroflot | 70 | Nofollow | coroflot.com | Design galleries | Free | Moderate | High | Verified live | Create a real designer profile and publish an original your tool UX/accessibility case study with process artifacts, outcomes, and the official project link. | Coroflot is for genuine creative work; the official FAQ permits personal-website/social links. Use a real identity, rights-cleared visuals, and a substantive case study rather than a logo-plus-link page. Portfolio links are user-controlled UGC, can be moderated or made private, and have no indexing or followed-link guarantee. | 2026-08-03 | Open Coroflot submit page (new tab)Coroflot details |
| 59 | 84 | CRAN | 90 | Nofollow | cran.r-project.org | Developer registries | Free | Moderate | High | Verified live | Submit a useful R package with URL and BugReports metadata pointing to its official project and documentation pages. | CRAN performs rigorous automated and manual review; packages must meet policy across supported platforms. | Official CRAN repository policy checked 2026-07-30 | Open CRAN submit page (new tab)CRAN details |
| 60 | 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 |
| 61 | 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 |
| 62 | 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 |
| 63 | 84 | Drupal.org Projects | 90 | Nofollow | drupal.org | Developer registries | Free | Moderate | High | Verified live | Create a functional Drupal integration or reusable module and publish a maintained project page with documentation and official links. | Project must contain real Drupal-compatible code and follow security, licensing, naming and non-promotional rules. | Official Drupal project docs checked 2026-07-30 | Open Drupal.org Projects submit page (new tab)Drupal.org Projects details |
| 64 | 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 |
| 65 | 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 |
| 66 | 84 | 90 | Nofollow | flipboard.com | Publishing platforms | Free | Moderate | High | Not submitted | Create a public digital-privacy magazine, curate reputable third-party resources, and occasionally add strong your tool guides with commentary. | Keep the magazine topical and balanced; Flipboard stresses authentic curation, and outbound links may be treated as UGC. | 2026-08-03 | Open Flipboard submit page (new tab)Flipboard details | |
| 67 | 84 | FOSDEM | 75 | Link type unknown | fosdem.org | Design galleries | Free | Moderate | High | Not submitted | Open-source a meaningful component and prepare a community-focused talk, demo, or joint stand proposal for the next FOSDEM CFP rather than a company sales presentation. | All content must relate to Free and Open Source Software; selection is competitive, recordings/slides are published under CC BY, and the code of conduct applies. FOSDEM 2026 is over and the 2027 CFP is not yet posted. | 2026-08-03 | Open FOSDEM submit page (new tab)FOSDEM details |
| 68 | 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 |
| 69 | 84 | freeCodeCamp News | 90 | Sometimes dofollow | freecodecamp.org | Publishing platforms | Free | Moderate | High | Verified live | Create a comprehensive tutorial around a reusable privacy, file-processing, accessibility, or security technique, with your tool only as a natural example. | Follow the current contributor and Hashnode workflow; content must teach, be original, and avoid promotional intent. | https://contribute.freecodecamp.org/faq/ | Open freeCodeCamp News submit page (new tab)freeCodeCamp News details |
| 70 | 84 | GetLatka | 70 | Nofollow | getlatka.com | Software directories | Free | Moderate | High | Verified live | Create an your tool company profile using an official your tool email. | Work email must match the company domain; team reviews submissions. | https://getlatka.com/add | Open GetLatka submit page (new tab)GetLatka details |
| 71 | 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 |
| 72 | 84 | Go Packages | 90 | Link type unknown | pkg.go.dev | Developer registries | Free | Moderate | High | Verified live | Tag and publish a public Go module with module docs and repository metadata so pkg.go.dev indexes it. | Use a valid module path and semantic-version tag; the module becomes discoverable after the proxy fetches it. | Official Go module publishing docs checked 2026-07-30 | Open Go Packages submit page (new tab)Go Packages details |
| 73 | 84 | Grafana Plugin Catalog | 85 | Nofollow | grafana.com | Marketplaces and app stores | Free | Moderate | High | Verified live | Build a panel, data-source or app plugin, validate and package it, then submit it with project links and test data. | Grafana reviews each plugin case-by-case; commercial-offering plugins may require paid terms. | Official Grafana plugin publishing docs checked 2026-07-30 | Open Grafana Plugin Catalog submit page (new tab)Grafana Plugin Catalog details |
| 74 | 84 | Hackaday.io | 85 | Nofollow | hackaday.io | Communities and forums | Free | Moderate | High | Verified live | Document a real hardware, privacy or security build that uses your tool, including schematics, progress logs and a natural official-project link. | Projects should document genuine work and follow community conduct; advertising-only pages and repetitive link posts are inappropriate. | 2026-08-03 | Open Hackaday.io submit page (new tab)Hackaday.io details |
| 75 | 84 | Hex | 70 | Link type unknown | hex.pm | Developer registries | Free | Moderate | High | Verified live | Publish a maintained Elixir client or utility with package links, description, license and documentation. | Requires a Hex account and valid mix.exs package metadata; publish only reusable working code. | Official Hex publishing docs checked 2026-07-30 | Open Hex submit page (new tab)Hex details |
| 76 | 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 |
| 77 | 84 | Homebrew Formulae | 75 | Link type unknown | formulae.brew.sh | Developer registries | Free | Moderate | High | Verified live | Submit an open-source CLI formula or a qualifying macOS app cask with the canonical your tool homepage. | Must meet Homebrew acceptance, notability, build, audit and testing rules; promotional-only formulae are rejected. | Official Homebrew contribution docs checked 2026-07-30 | Open Homebrew Formulae submit page (new tab)Homebrew Formulae details |
| 78 | 84 | IconScout | 80 | Nofollow | iconscout.com | Marketplaces and app stores | Free | Moderate | High | Verified live | Apply with a real designer portfolio and publish an original your tool-themed privacy, safety, accessibility, icon, illustration, 3D, or Lottie pack. | Contributor approval is required; assets must be original and rights-cleared, and exclusivity can restrict cross-listing. | Official IconScout contributor, fee, and legal guidance checked 2026-08-07 | Open IconScout submit page (new tab)IconScout details |
| 79 | 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 |
| 80 | 84 | Intercom App Store | 90 | Nofollow | intercom.com | Marketplaces and app stores | Free | Moderate | High | Verified live | Build an Intercom app for intentional conversation privacy scanning or sanitized export generation and include a clear your tool install or learn-more URL. | Listed apps require OAuth, a complete start guide and listing, accurate installation links, partner information, and Intercom review. | Official Intercom App Store listing documentation checked 2026-08-07 | Open Intercom App Store submit page (new tab)Intercom App Store details |
| 81 | 84 | Joomla Extensions Directory | 85 | Sometimes dofollow | extensions.joomla.org | Marketplaces and app stores | Free | Moderate | High | Verified live | Build a genuine Joomla extension, create a developer profile and submit a complete listing with the official project website. | Author-only submissions; GPL-compatible licensing, update server, installability, working links and review are required. | Official JED submission docs checked 2026-07-30 | Open Joomla Extensions Directory submit page (new tab)Joomla Extensions Directory details |
| 82 | 84 | Jotform Widget Marketplace | 90 | Nofollow | jotform.com | Marketplaces and app stores | Free | Moderate | High | Verified live | Build and host a useful Jotform widget, register it with full documentation and send it for approval. | Widget must be functional, secure, mobile-friendly and compliant with Jotform review and data rules. | Official Jotform widget portal checked 2026-07-30 | Open Jotform Widget Marketplace submit page (new tab)Jotform Widget Marketplace details |
| 83 | 84 | JS.ORG | 70 | Dofollow | js.org | Other opportunities | Free | Moderate | High | Verified live | Create a genuine JavaScript SDK or demo on GitHub Pages and request an appropriate js.org subdomain that links to its official your tool documentation. | The project must be JavaScript-related and useful; spam, phishing and dubious content are prohibited, and a pull-request review is required. | 2026-08-03 | Open JS.ORG submit page (new tab)JS.ORG details |
| 84 | 84 | JSFiddle | 85 | Nofollow | jsfiddle.net | Design galleries | Free | Moderate | High | Verified live | Publish a small standalone your tool privacy or accessibility demo with explanatory comments and a stable share URL. | Use original client-side demo code and never include secrets, personal data, trackers, or a promotion-only empty fiddle. | Official JSFiddle getting-started documentation checked 2026-08-07 | Open JSFiddle submit page (new tab)JSFiddle details |
| 85 | 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 |
| 86 | 84 | LangChain Integrations | 75 | Link type unknown | langchain.com | Marketplaces and app stores | Free | Moderate | High | Verified live | Build a standalone your tool integration package with tests and submit the required LangChain documentation PR. | Must fit an accepted integration type, pass standard tests, be published as a package, and complete code plus docs review. | 2026-08-05 | Open LangChain Integrations submit page (new tab)LangChain Integrations details |
| 87 | 84 | MacPorts | 70 | Link type unknown | ports.macports.org | Developer registries | Free | Moderate | High | Verified live | Create and test a Portfile for an open-source your tool CLI or desktop app, including its canonical homepage. | Run lint and local builds, then submit a pull request or a MacPorts Trac submission ticket for review. | Official MacPorts guide checked 2026-07-30 | Open MacPorts submit page (new tab)MacPorts details |
| 88 | 84 | Maven | 70 | Link type unknown | maven.com | Other opportunities | Free | Moderate | High | Verified live | Build and teach a live, project-based cohort on creating local-first privacy tools or accessible web utilities, supported by a substantive public syllabus and real instructor profile. | The official accelerator targets professional development for mid-career business or tech learners and requires a Stripe Connect-supported country. Marketplace discovery follows traction; the instructor must deliver the promised live teaching and projects. | 2026-08-03 | Open Maven submit page (new tab)Maven details |
| 89 | 84 | Maven Central | 70 | Link type unknown | central.sonatype.com | Developer registries | Free | Moderate | High | Verified live | Release a useful Java or Kotlin SDK and include the project homepage, source control, license and developer metadata in the POM. | Requires namespace verification, signed artifacts and complete POM metadata; releases are permanent. | Official Sonatype Central docs checked 2026-07-30 | Open Maven Central submit page (new tab)Maven Central details |
| 90 | 84 | Mendeley Data | 90 | Nofollow | mendeley.com | Publishing platforms | Free | Moderate | High | Verified live | Publish an original, human-verified privacy or accessibility benchmark with complete methodology, provenance, schema, license, and a relevant project citation. | Intended for research data, not promotion. Do not upload personal/confidential data or AI-generated datasets; published versions receive a DOI and generally require a new version or support request for later changes/removal. | 2026-08-03 | Open Mendeley Data submit page (new tab)Mendeley Data details |
| 91 | 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 |
| 92 | 84 | Netlify Extensions Directory | 90 | Link type unknown | netlify.com | Marketplaces and app stores | Free | Moderate | High | Verified live | Build and test a Netlify extension, publish it publicly, then submit it for review and directory listing. | Public listed extensions are reviewed; provide accurate in-app documentation, support and secure implementation. | Official Netlify SDK publishing docs checked 2026-07-30 | Open Netlify Extensions Directory submit page (new tab)Netlify Extensions Directory details |
| 93 | 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 |
| 94 | 84 | Nextcloud App Store | 80 | Link type unknown | nextcloud.com | Marketplaces and app stores | Free | Moderate | High | Not submitted | Build a signed Nextcloud app for local document sanitization or privacy checks, publish releases, and maintain App Store compatibility. | Must follow App Store, signing, security, privacy, and license rules; approval and outbound-link presentation remain under store moderation. | 2026-08-03 | Open Nextcloud App Store submit page (new tab)Nextcloud App Store details |
| 95 | 84 | Nixpkgs | 75 | Link type unknown | search.nixos.org | Developer registries | Free | Moderate | High | Verified live | Add and test a Nix expression for a genuine your tool release with description, homepage, license and maintainer metadata. | Must satisfy Nixpkgs contribution, licensing, reproducibility, review and supported-platform rules. | Official Nixpkgs 26.05 manual checked 2026-07-30 | Open Nixpkgs submit page (new tab)Nixpkgs details |
| 96 | 84 | npm | 95 | Nofollow | npmjs.com | Developer registries | Free | Moderate | High | Not submitted | Publish @your tool/embed or utility package with homepage. | Only after package exists; keep license clean. | 2026-07-30 | Open npm submit page (new tab)npm details |
| 97 | 84 | Ollama Model Library | 75 | Link type unknown | ollama.com | Developer registries | Free | Moderate | High | Verified live | Publish a small local-first your tool classifier for privacy, secret detection, or defensive content analysis. | Verify base-model redistribution rights, publish a clear licence, document limitations, and exclude private training data. | Official Ollama model sharing documentation checked 2026-08-07 | Open Ollama Model Library submit page (new tab)Ollama Model Library details |
| 98 | 84 | OMR Reviews | 70 | Link type unknown | omr.com | Software directories | Free | Moderate | High | Verified live | Suggest your tool and complete its B2B software profile. | Must fit a supported B2B software category; OMR reviews the suggestion. | https://omr.com/en/reviews/b2b/list-software | Open OMR Reviews submit page (new tab)OMR Reviews details |
| 99 | 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 |
| 100 | 84 | Open Textbook Library | 85 | Link type unknown | open.umn.edu | Other opportunities | Free | Moderate | High | Verified live | Submit a complete, openly licensed privacy/digital-safety textbook already used in higher education. | Complete semester-length text; no CC-ND; must be used at multiple higher-ed institutions or backed by a higher-ed, scholarly or professional body. | 2026-08-05 — https://open.umn.edu/opentextbooks/textbooks/submit | Open Open Textbook Library submit page (new tab)Open Textbook Library 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.