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A maintained list of 1,432 directories, launch platforms, registries and marketplaces that accept product submissions. 1,134 of them are free or have a free tier, and 192 are quick wins — free, low effort, and worth doing first. Every row shows cost, effort and priority, and links straight to the submission page.
The table is wider than the screen — swipe it sideways for cost, effort and the preparation notes.
| # | Impact (sorted) | Site — sort by this | Domain | Type | Cost | Effort — sort by this | Priority | Status | What to prepare | Rules / caveat | Checked | Actions |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 101 | 86 | Traefik Plugin Catalog | plugins.traefik.io | Marketplaces and app stores | Free | Quick | High | Verified live | Build a production-quality Traefik middleware plugin for an your tool privacy or security use case and publish it to the public catalog. | Plugin must be public, reusable, tested, documented, safely scoped, and compliant with Traefik plugin manifest and registry requirements. | 2026-08-05 — https://doc.traefik.io/traefik-hub/api-gateway/guides/plugin-development-guide | Open Traefik Plugin Catalog submit page (new tab)Traefik Plugin Catalog details |
| 102 | 86 | TYPO3 Extension Repository | 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 |
| 103 | 86 | Umbraco Marketplace | 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 |
| 104 | 86 | UN SDG Actions Platform | 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 |
| 105 | 86 | Upbound Marketplace | marketplace.upbound.io | Marketplaces and app stores | Free | Quick | High | Verified live | Build and publish a real Crossplane provider, function, configuration or add-on that integrates an your tool capability and exposes accurate project documentation. | Use Upbound's package tooling and a public listing; package must be installable, maintained and useful to control-plane users. Confirm public visibility because new pushed packages may initially be private. | 2026-08-05 | Open Upbound Marketplace submit page (new tab)Upbound Marketplace details |
| 106 | 86 | Webex App Hub | 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 |
| 107 | 86 | Wikimedia Toolhub | 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 |
| 108 | 86 | WordPress.org Plugins | 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 |
| 109 | 86 | WorkflowHub | workflowhub.eu | Developer registries | Free | Quick | High | Verified live | Package a reproducible your tool privacy or redaction workflow, join or create a team, and register it with rich metadata and source links. | Requires a real executable workflow file, team membership, accurate authorship/licence metadata, and a maintained public entry. | 2026-08-05 — https://about.workflowhub.eu/docs/registering_workflows/registering-a-workflow/ | Open WorkflowHub submit page (new tab)WorkflowHub details |
| 110 | 83 | Coda Gallery Packs | coda.io | Marketplaces and app stores | Free + paid tier | Quick | High | Verified live | Build a useful Coda Pack that connects to your tool functionality and publish it to the Gallery with documentation and support links. | Pack must be secure, functional and compliant with Coda data, authentication and publishing policies. | Official Coda help article checked 2026-07-30 | Open Coda Gallery Packs submit page (new tab)Coda Gallery Packs details |
| 111 | 83 | Contra | contra.com | Startup directories | Free + paid tier | Quick | High | Not submitted | Create the founder or studio portfolio and publish your tool as a detailed product case study with the live project link. | Use a real professional identity and show genuine work, process, and outcomes; do not create a shell profile only for a backlink. | 2026-08-03 | Open Contra submit page (new tab)Contra details |
| 112 | 83 | Crunchbase | crunchbase.com | Startup directories | Free + paid tier | Quick | High | Not submitted | Create/claim company profile linking your tool/Anslation. | High authority entity/profile; company details needed. | 2026-07-30 | Open Crunchbase submit page (new tab)Crunchbase details |
| 113 | 83 | Eventbrite | eventbrite.com | Profiles and entities | Free + paid tier | Quick | High | Verified live | Host a genuine your tool privacy/tool workshop or webinar; add your tool in the organizer website field and useful event description. | Do not create fake events or thin SEO pages; publish only a real scheduled event with attendee value. | https://www.eventbrite.com/help/en-us/articles/161196/how-to-set-up-your-organizer-profile-page/ | Open Eventbrite submit page (new tab)Eventbrite details |
| 114 | 83 | Justdial | justdial.com | Business directories | Free + paid tier | Quick | High | Verified live | Create a verified your tool listing with Indian phone, address, category, hours, website, social links, and product or service details. | Mobile OTP, address, and business details are required; expect sales upsells and keep all information consistent. | https://www.justdial.com/free-listing | Open Justdial submit page (new tab)Justdial details |
| 115 | 83 | JustGotFound | justgotfound.com | Launch platforms | Free + paid tier | Quick | High | Verified live | Use the free submission tier for a standard your tool listing. | Do not buy promotion until referral value is measured; listing remains after promotion ends. | 2026-08-05 | Open JustGotFound submit page (new tab)JustGotFound details |
| 116 | 83 | MCP.so | mcp.so | Other opportunities | Free + paid tier | Quick | High | Live, conditional | Submit a real public your tool MCP server repository with correct name, install steps and configuration details. | Free listing uses random placement and a nofollow link; only submit a working maintained MCP server. | 2026-08-04 | Open MCP.so submit page (new tab)MCP.so details |
| 117 | 83 | Observable | observablehq.com | Profiles and entities | Free + paid tier | Quick | High | Verified live | Publish an original interactive notebook showing transparent your tool benchmark, privacy, performance, or tool-usage data and cite the relevant your tool pages. | Use only public/non-sensitive data; public notebooks and referenced files are indexable, reusable, and must have accurate sources and licensing. | https://observablehq.com/documentation/collaboration/sharing | Open Observable submit page (new tab)Observable details |
| 118 | 83 | Odoo Apps Store | odoo.com | Marketplaces and app stores | Free + paid tier | Quick | High | Verified live | Build and document an your tool Odoo module, register its repository, and upload a maintained free or paid listing. | Odoo must receive repository read access; metadata, compatibility, licensing, screenshots, and support must follow store rules. | Official Odoo Apps upload page checked 2026-08-07 | Open Odoo Apps Store submit page (new tab)Odoo Apps Store details |
| 119 | 83 | Pressbooks Self-Publisher | pressbooks.com | Publishing platforms | Free + paid tier | Quick | High | Verified live | Create an accessible, openly licensed handbook or course text with structured chapters, exercises, citations, and relevant links, then make the webbook public for directory discovery. | One book per self-publisher subscription; ongoing editing requires a paid plan. Use an open license for durable open hosting/discoverability after cancellation and ensure the book is substantive, accessible, and rights-cleared. | 2026-08-03 | Open Pressbooks Self-Publisher submit page (new tab)Pressbooks Self-Publisher details |
| 120 | 83 | Qwoted | qwoted.com | PR and source platforms | Free + paid tier | Quick | High | Needs checking | Create expert/source profile for media coverage requests. | Respond fast with unique founder/product data. | 2026-07-30 | Open Qwoted submit page (new tab)Qwoted details |
| 121 | 83 | ShipList | shipli.st | Other opportunities | Free + paid tier | Quick | High | Verified live | Use the free listing path for your tool; evaluate paid multi-directory service separately. | Keep this task to the direct ShipList profile; do not authorize bulk third-party submissions blindly. | 2026-08-05 | Open ShipList submit page (new tab)ShipList details |
| 122 | 83 | Startup Stash | startupstash.com | Startup directories | Free + paid tier | Quick | High | Not submitted | List your tool as productivity/developer/startup resource. | Selective curation; make category fit clear. | 2026-07-30 | Open Startup Stash submit page (new tab)Startup Stash details |
| 123 | 82 | DSCI | dsci.in | Other opportunities | Not stated | Quick | High | Live, conditional | Submit a corporate membership enquiry with accurate your tool cybersecurity/privacy activities and India entity details. | Industry relevance and due diligence apply; acceptance and public profile are not automatic. | 2026-08-04 | Open DSCI submit page (new tab)DSCI details |
| 124 | 82 | Kit | kit.com | Publishing platforms | Not stated | Quick | High | Verified live | Create a public Tool Trust Notes newsletter site with original privacy, accessibility, founder, and engineering field reports, using your tool links only where they directly support each issue. | The free plan enables one Kit-managed recommendation slot and Kit keeps earnings from that slot; paid upgrades remove limitations. Use only consented subscribers, disclose commercial relationships, and avoid recycled SEO or promotional-only issues. | 2026-08-03 | Open Kit submit page (new tab)Kit details |
| 125 | 82 | Nextool.ai | nextool.ai | AI tool directories | Not stated | Quick | High | Not submitted | Submit a specific working AI-powered your tool utility, then claim the approved listing with a domain email to maintain features and pricing. | AI tools only; professional public website and accurate details required; claiming an existing listing is verified separately and does not guarantee featured placement. | 2026-08-03 | Open Nextool.ai submit page (new tab)Nextool.ai details |
| 126 | 82 | SelectHub | selecthub.com | Marketplaces and app stores | Not stated | Quick | High | Live, conditional | Ask SelectHub to create or claim an your tool profile and provide product capabilities, pricing, case studies, and customer proof. | Best for established business software; analyst validation and category fit apply, and enhanced vendor programs may be paid. | 2026-08-03 | Open SelectHub submit page (new tab)SelectHub details |
| 127 | 76 | C2PA | c2pa.org | Publishing platforms | Paid | Quick | High | Live, conditional | Apply through the official Linux Foundation enrollment if your tool will genuinely implement or contribute to C2PA standards. | Strong technical fit and participation are required; acceptance and roster visibility are not a self-serve directory shortcut. | 2026-08-04 | Open C2PA submit page (new tab)C2PA details |
| 128 | 76 | ESC India | escindia.in | Profiles and entities | Paid | Quick | High | Live, conditional | Apply as an eligible Indian software or ITeS exporter with company, GST, IEC/DGFT and RCMC evidence as requested. | Exporter eligibility and documentation apply; official member pages exist but an external website link is not guaranteed. | 2026-08-04 | Open ESC India submit page (new tab)ESC India details |
| 129 | 76 | Global Cyber Alliance | globalcyberalliance.org | Profiles and entities | Paid | Quick | High | Live, conditional | Propose a concrete funded or in-kind your tool anti-scam, privacy or cyber-safety collaboration through Become a Partner. | A formal agreement and real contribution are required; partner-page publication is not self-serve or guaranteed. | 2026-08-04 | Open Global Cyber Alliance submit page (new tab)Global Cyber Alliance details |
| 130 | 76 | Nova Extension Library | nova.app | Marketplaces and app stores | Paid | Quick | High | Verified live | Build a Nova extension that runs your tool privacy and code-safety checks from the editor. | Validate and submit through Nova CLI; manifest category and runtime requirements apply. | Official Nova extension CLI documentation checked 2026-08-07 | Open Nova Extension Library submit page (new tab)Nova Extension Library details |
| 131 | 76 | Sketch Plugin Directory | sketch.com | Marketplaces and app stores | Paid | Quick | High | Verified live | Build a Sketch plugin for accessibility, metadata cleanup, or sensitive-placeholder detection. | Host the plugin ZIP and update JSON, then submit to the official directory; legacy skpm is unsupported. | Official Sketch plugin publishing documentation checked 2026-08-07 | Open Sketch Plugin Directory submit page (new tab)Sketch Plugin Directory details |
| 132 | 76 | Twilio Segment Integration Catalog | segment.com | Marketplaces and app stores | Paid | Quick | High | Verified live | Build a destination or function that sends only explicitly selected and sanitized events to your tool for PII or schema checks. | Submit company and service metadata, documentation, and test credentials; Segment tests before a public beta listing, and strict consent and minimization are essential. | Official Twilio Segment partner checklist checked 2026-08-07 | Open Twilio Segment Integration Catalog submit page (new tab)Twilio Segment Integration Catalog details |
| 133 | 76 | WIP | wip.co | Profiles and entities | Paid | Quick | High | Not submitted | Join as the founder, create one your tool project page, and share genuine shipped improvements with links only when useful. | Profiles and projects are public by default; the community expects real shipped work, not promotional link dumping or future-only todos. | 2026-08-03 | Open WIP submit page (new tab)WIP details |
| 134 | 68 | Apify Store | 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 |
| 135 | 68 | AppImageHub | appimage.github.io | Software directories | Free | Quick | Medium | Live, conditional | Package a legitimate your tool desktop app as an official AppImage, then file the requested issue or pull request for inclusion. | Requires a maintained downloadable AppImage and compliant metadata; a browser-only site is not eligible. | 2026-08-05 | Open AppImageHub submit page (new tab)AppImageHub details |
| 136 | 68 | Astro Showcase | 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 |
| 137 | 68 | Awesome Privacy | awesome-privacy.xyz | Developer registries | Free | Quick | Medium | Needs checking | Submit only after public privacy policy and client-side privacy proof. | Human-written PR; no AI-generated PR text. | 2026-07-30 | Open Awesome Privacy submit page (new tab)Awesome Privacy details |
| 138 | 68 | BibSonomy | bibsonomy.org | Social channels | Free | Quick | Medium | Verified live | Curate a tagged public collection of authoritative privacy, accessibility, and safety resources with your tool included only where substantively relevant. | Build a balanced useful bibliography; avoid repetitive self-bookmarking, keyword stuffing, or treating the service as a backlink directory. | Official BibSonomy service and guidance checked 2026-08-07 | Open BibSonomy submit page (new tab)BibSonomy details |
| 139 | 68 | bio.tools | bio.tools | Software directories | Free | Quick | Medium | Verified live | Register a genuinely life-science-focused your tool resource with stable homepage, scientific operations, inputs, outputs, licence, and documentation. | Must perform a credible bioinformatics or life-science function; medical branding alone is insufficient and EDAM metadata is expected. | 2026-08-05 — https://biotools.readthedocs.io/en/latest/quickstart_guide.html | Open bio.tools submit page (new tab)bio.tools details |
| 140 | 68 | Budibase Community Plugins | budibase.com | Marketplaces and app stores | Free | Quick | Medium | Verified live | Build a useful your tool Budibase component or data-source plugin, publish the package or repository, and seek inclusion in community plugin resources. | A functional plugin and public package are required; central curation is not guaranteed, so treat the package and documentation as the primary asset. | Official Budibase custom plugin documentation checked 2026-08-07 | Open Budibase Community Plugins submit page (new tab)Budibase Community Plugins details |
| 141 | 68 | CapRover One-Click Apps | caprover.com | Software directories | Free | Quick | Medium | Verified live | Create a tested CapRover one-click definition for a real self-hosted your tool service and contribute it to the linked official community repository. | The directory is community-maintained; use safe defaults, document required variables and persistence, and keep images and deployment instructions current. | Official CapRover one-click app documentation and repository checked 2026-08-05 | Open CapRover One-Click Apps submit page (new tab)CapRover One-Click Apps details |
| 142 | 68 | Chanakya Software | chanakyasoftware.com | Software directories | Free | Quick | Medium | Verified live | Create a vendor account and list your tool software offering. | Provide genuine vendor, website, software, and service details. | https://www.chanakyasoftware.com/list-your-software | Open Chanakya Software submit page (new tab)Chanakya Software details |
| 143 | 68 | Chef Supermarket | chef.io | Developer registries | Free | Quick | Medium | Not submitted | Create a tested Chef cookbook for supported your tool deployment or hardening, add complete metadata and source, then share it to Supermarket. | Only publish functional maintained cookbooks with appropriate licensing and metadata; package pages are not guaranteed promotional or dofollow placements. | 2026-08-03 | Open Chef Supermarket submit page (new tab)Chef Supermarket details |
| 144 | 68 | Clojars | clojars.org | Developer registries | Free | Quick | Medium | Verified live | Release a genuine Clojure or JVM client library with a POM, description, homepage and source metadata. | Requires an account and deploy credentials; use a unique group or verified domain and maintain releases. | Official Clojars publishing interface checked 2026-07-30 | Open Clojars submit page (new tab)Clojars details |
| 145 | 68 | Cloudsmith | cloudsmith.com | Developer registries | Free | Quick | Medium | Live, conditional | Create a public your tool package repository for genuine releases and complete its namespace, description, licence and source/homepage metadata. | Only host real maintained artifacts; the open-source plan requires public licensed software and public distribution can incur usage limits. | 2026-08-05 official Cloudsmith repository docs and pricing | Open Cloudsmith submit page (new tab)Cloudsmith details |
| 146 | 68 | CocoaPods | 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 |
| 147 | 68 | Common Workflow Language | commonwl.org | Software directories | Free | Quick | Medium | Verified live | Build a genuine CWL validator, security tool, or implementation and propose its inclusion with compliance evidence. | Must actually support CWL; the community-maintained listing does not constitute formal certification. | Official CWL implementation page and website repository checked 2026-08-05 | Open Common Workflow Language submit page (new tab)Common Workflow Language details |
| 148 | 68 | Commudle | commudle.com | Profiles and entities | Free | Quick | Medium | Verified live | Create a real developer profile, publish an original your tool engineering tutorial or project, and join only relevant privacy or developer communities. | Share knowledge first, follow each community's rules, and do not create an empty promotional community or mass-post the same link. | Official Commudle community platform checked 2026-08-07 | Open Commudle submit page (new tab)Commudle details |
| 149 | 68 | Contao Extensions | extensions.contao.org | Marketplaces and app stores | Free | Quick | Medium | Verified live | Build a functional Contao bundle for an your tool site-audit use case, publish tagged releases on Packagist with contao-bundle and manager-plugin metadata, and let the official index discover it. | Requires a real Contao extension, public Composer package, at least one version tag and correct Contao Manager Plugin metadata; optional rich listing metadata is contributed separately. | 2026-08-05 | Open Contao Extensions submit page (new tab)Contao Extensions details |
| 150 | 68 | CPAN / PAUSE | cpan.org | Developer registries | Free | Quick | Medium | Verified live | Publish a genuine Perl module or CLI through PAUSE with project URLs and clear distribution documentation. | Requires a PAUSE account, unique namespace and ongoing maintenance; first uploader controls the namespace. | Official CPAN PAUSE docs checked 2026-07-30 | Open CPAN / PAUSE submit page (new tab)CPAN / PAUSE details |
| 151 | 68 | CreativesFeed | creativesfeed.com | Software directories | Free | Quick | Medium | Verified live | Submit relevant your tool utilities under AI, web, or developer categories. | Only submit tools matching available creative, AI, or development categories. | https://creativesfeed.com/contact/submit-your-software/free-software-listing/ | Open CreativesFeed submit page (new tab)CreativesFeed details |
| 152 | 68 | devChallenges | devchallenges.io | Design galleries | Free | Quick | Medium | Verified live | Build a genuine free challenge solution, publish the deployed project and repository, and use the finished privacy or accessibility implementation as a portfolio case study. | Only submit work that answers a listed challenge; do not upload AltFTool as an unrelated product, and remember solutions remain public. | Official devChallenges platform and plan information checked 2026-08-07 | Open devChallenges submit page (new tab)devChallenges details |
| 153 | 68 | Devpost | devpost.com | Design galleries | Free | Quick | Medium | Verified live | Enter a relevant live hackathon with a working your tool project, complete its story and demo, and include the project website where allowed. | Only submit to genuinely relevant events, follow each hackathon's eligibility and judging rules, and do not recycle an unrelated promotion. | Official Devpost submission help checked 2026-07-30 | Open Devpost submit page (new tab)Devpost details |
| 154 | 68 | Django Packages | djangopackages.org | Developer registries | Free | Quick | Medium | Live, conditional | After releasing a genuinely Django-relevant open-source component, sign in and add its GitHub or GitLab repository and accurate project links. | Package must be useful to Django developers and hosted on a supported public repository; listings are community-maintained and not DSF endorsement. | 2026-08-05 official Django Packages FAQ, documentation and live directory | Open Django Packages submit page (new tab)Django Packages details |
| 155 | 68 | ESP Component Registry | components.espressif.com | Developer registries | Free | Quick | Medium | Verified live | Build an ESP-IDF privacy, credential-safety, secure-logging, or local-processing component, add manifest, license, docs, examples, and publish it through the registry workflow. | Must be an actual ESP-IDF component; namespace, semantic versioning, linting, licensing, dependency, documentation, and upload rules apply. | Official ESP Component Registry publishing documentation checked 2026-08-05 | Open ESP Component Registry submit page (new tab)ESP Component Registry details |
| 156 | 68 | europages | europages.com | Business directories | Free | Quick | Medium | Needs checking | List the registered your tool business as an eligible IT supplier and complete its public company profile and website field. | A valid company and VAT number are required; use only if the business qualifies as a B2B supplier and all legal data is accurate. | 2026-08-03 | Open europages submit page (new tab)europages details |
| 157 | 68 | F-Droid | f-droid.org | Software directories | Free | Quick | Medium | Verified live | Publish a privacy-respecting open-source Android companion app, then file a packaging request or merge request. | App must be source-buildable, useful and actively maintained, with no proprietary tracking, ads or non-free dependencies. | Official F-Droid inclusion policy checked 2026-07-30 | Open F-Droid submit page (new tab)F-Droid details |
| 158 | 68 | F6S | f6s.com | Startup directories | Free | Quick | Medium | Not submitted | Create startup profile and link website. | Good startup entity citation. | 2026-07-30 | Open F6S submit page (new tab)F6S details |
| 159 | 68 | Favors.dev | favors.dev | Launch platforms | Free | Quick | Medium | Not submitted | Use atlas to find more open-form launch sites and request listing if available. | Mostly research atlas; check submit/contact path. | 2026-07-30 | Open Favors.dev submit page (new tab)Favors.dev details |
| 160 | 68 | FlakeHub | flakehub.com | Developer registries | Free | Quick | Medium | Live, conditional | Publish a genuine versioned your tool Nix flake under the correct GitHub owner and maintain its README and project links. | Published versions are archived permanently; ownership, licence and repository association must be accurate and squatting is inappropriate. | 2026-08-05 official FlakeHub homepage, usage policy and pricing | Open FlakeHub submit page (new tab)FlakeHub details |
| 161 | 68 | Flickr | flickr.com | Profiles and entities | Free | Quick | Medium | Not submitted | Create a truthful your tool/founder profile or content page and add the website link where allowed. | Use a real brand/founder identity; do not create thin duplicate pages. Listing link is currently reported nofollow. | 2026-07-30 • https://www.submission.directory/site/flickr | Open Flickr submit page (new tab)Flickr details |
| 162 | 68 | Fluentd Plugin Directory | fluentd.org | Marketplaces and app stores | Free | Quick | Medium | Verified live | Build and publish a real fluent-plugin-* RubyGem that redacts/routes privacy-sensitive logs and includes your tool as its project homepage. | Must follow Fluentd plugin naming/API conventions and be a valid public RubyGem; the official directory refreshes periodically from RubyGems, so indexing is not immediate. | 2026-08-05 — https://docs.fluentd.org/plugin-development | Open Fluentd Plugin Directory submit page (new tab)Fluentd Plugin Directory details |
| 163 | 68 | freshcode.club | freshcode.club | Developer registries | Free | Quick | Medium | Live, conditional | Submit a real maintained your tool open-source release with accurate categories and project metadata. | Use only for an actual open-source project and keep releases maintained. | 2026-08-05 | Open freshcode.club submit page (new tab)freshcode.club details |
| 164 | 68 | GetApp | getapp.com | Software directories | Free | Quick | Medium | Not submitted | Create software vendor listing. | Often managed with Capterra listing. | 2026-07-30 | Open GetApp submit page (new tab)GetApp details |
| 165 | 68 | getfolio.dev | getfolio.dev | Developer registries | Free | Quick | Medium | Verified live | Create a founder/developer portfolio, pin your tool repository/project and add the official website link. | Use a real GitHub identity and maintained projects; avoid a profile created only for SEO. | 2026-08-03 | Open getfolio.dev submit page (new tab)getfolio.dev details |
| 166 | 68 | Ghost Forum | forum.ghost.org | Communities and forums | Free | Quick | Medium | Not submitted | Post how to embed your tool calculators in Ghost after /embed live. | Forum post only; directory closed to submissions. | 2026-07-30 | Open Ghost Forum submit page (new tab)Ghost Forum details |
| 167 | 68 | GitLab | gitlab.com | Profiles and entities | Free | Quick | Medium | Not submitted | Mirror open-source embed SDK or examples with homepage link. | Useful only with real OSS artifact. | 2026-07-30 | Open GitLab submit page (new tab)GitLab details |
| 168 | 68 | Goodreads | goodreads.com | Profiles and entities | Free | Quick | Medium | Verified live | Create a truthful your tool/founder profile or content page and add the website link where allowed. | Use a real brand/founder identity; do not create thin duplicate pages. Listing link is currently reported nofollow. | 2026-07-30 • https://www.submission.directory/site/goodreads | Open Goodreads submit page (new tab)Goodreads details |
| 169 | 68 | Google Business Profile | google.com | Business directories | Free | Quick | Medium | Needs checking | Create business profile only if eligible with real business details. | Do not fake location; follow Google rules. | 2026-07-30 | Open Google Business Profile submit page (new tab)Google Business Profile details |
| 170 | 68 | Gravatar | gravatar.com | Profiles and entities | Free | Quick | Medium | Needs checking | Create brand/founder profile with verified links. | Easy entity citation; low traffic. | 2026-07-30 | Open Gravatar submit page (new tab)Gravatar details |
| 171 | 68 | Hackage | hackage.haskell.org | Developer registries | Free | Quick | Medium | Verified live | Release a useful Haskell library or command-line client with homepage, source and bug-report metadata. | Hackage requires open-source, meaningful packages; uploaded versions cannot simply be replaced. | Official Hackage upload page checked 2026-07-30 | Open Hackage submit page (new tab)Hackage details |
| 172 | 68 | Haxelib | lib.haxe.org | Developer registries | Free | Quick | Medium | Live, conditional | Release a useful Haxe SDK or privacy utility and set haxelib.json's URL to the relevant your tool documentation page. | Requires reusable code, semantic versions and accurate metadata; promotional-only packages are not appropriate. | 2026-08-05 official Haxelib package guide | Open Haxelib submit page (new tab)Haxelib details |
| 173 | 68 | HubPages | hubpages.com | Profiles and entities | Free | Quick | Medium | Verified live | Create a truthful your tool/founder profile or content page and add the website link where allowed. | Use a real brand/founder identity; do not create thin duplicate pages. Listing link is currently reported nofollow. | 2026-07-30 • https://www.submission.directory/site/hubpages | Open HubPages submit page (new tab)HubPages details |
| 174 | 68 | HundrED | hundred.org | Profiles and entities | Free | Quick | Medium | Verified live | Apply with a privacy/digital-safety education program that demonstrates real K-12 impact and scalability. | Current Global Collection 2028 call closes 2027-05-01; normally implemented for 1+ year and reached 1,000+ children; evidence required. | 2026-08-05 — https://hundred.org/en/collections/hundred-global-collection-2028 | Open HundrED submit page (new tab)HundrED details |
| 175 | 68 | itch.io | 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 |
| 176 | 68 | Jellyfin Plugin Catalog | jellyfin.org | Marketplaces and app stores | Free | Quick | Medium | Verified live | Build a functional Jellyfin privacy, metadata-cleanup, or local-safety plugin with a maintained manifest repository, then propose its repository and documentation entry. | Third-party listing is curated through documentation; official inclusion is not guaranteed and the plugin must remain compatible with Jellyfin's ABI. | Official Jellyfin plugin catalog and repository guidance checked 2026-08-05 | Open Jellyfin Plugin Catalog submit page (new tab)Jellyfin Plugin Catalog details |
| 177 | 68 | Joomla Extensions Directory | 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 |
| 178 | 68 | Knowledge Commons / CORE | hcommons.org | Developer registries | Free | Quick | Medium | Verified live | Create a truthful scholarly profile and deposit an original privacy, accessibility, or digital-humanities paper or teaching resource with its related your tool URL. | Work must genuinely serve scholarship or pedagogy; upload only rights-cleared material, not sales copy. | 2026-08-05 — https://registry.hcommons.org/registry/co_petitions/start/coef%3A158 | Open Knowledge Commons / CORE submit page (new tab)Knowledge Commons / CORE details |
| 179 | 68 | Liberapay | liberapay.com | Profiles and entities | Free | Quick | Medium | Live, conditional | Create an your tool project team, connect verified project accounts, and describe the official website and repository contextually. | Teams are for genuine shared projects; one-contributor projects are allowed, but a single-company shell is not the intended use. | 2026-08-05 | Open Liberapay submit page (new tab)Liberapay details |
| 180 | 68 | LineZine | linezine.com | Software directories | Free | Quick | Medium | Verified live | Choose the free listing or purchase a dedicated your tool product page. | Free clicks are redirected/nofollow; paid option provides a dedicated dofollow page. | https://linezine.com/list-your-tool | Open LineZine submit page (new tab)LineZine details |
| 181 | 68 | LuaRocks | luarocks.org | Developer registries | Free | Quick | Medium | Verified live | Create a useful Lua client or helper, publish its rockspec and include homepage, license and source links. | Only publish a working Lua module with correct dependencies and versioned source archives. | Official LuaRocks page checked 2026-07-30 | Open LuaRocks submit page (new tab)LuaRocks details |
| 182 | 68 | Manta | manta.com | Business directories | Free | Quick | Medium | Needs checking | Claim or add the legal your tool business, complete its description and logo, and include the verified website link. | Free registration is for businesses located in the United States; use only if AltFTool has a legitimate US business address and ownership proof. | 2026-08-03 | Open Manta submit page (new tab)Manta details |
| 183 | 68 | Mastra Templates and Integrations | mastra.ai | Marketplaces and app stores | Free | Quick | Medium | Verified live | Create a working public your tool integration or reusable Mastra template with repository and documentation for review and cross-listing. | A working integration and public repository are required; documentation listing, partner placement, and co-marketing are not guaranteed. | 2026-08-05 | Open Mastra Templates and Integrations submit page (new tab)Mastra Templates and Integrations details |
| 184 | 68 | n8n Community | n8n.io | Communities and forums | Free | Quick | Medium | Needs checking | Publish useful n8n workflow linking your tool resources. | AltFTool already has n8n content; good fit. | 2026-07-30 | Open n8n Community submit page (new tab)n8n Community details |
| 185 | 68 | napari Hub | napari-hub.org | Marketplaces and app stores | Free | Quick | Medium | Verified live | Create a useful npe2 napari plugin for image privacy, metadata inspection or scientific redaction, publish it correctly on PyPI and let the official hub index its project metadata. | Must be a working napari plugin with correct manifest, classifiers, tests and PyPI metadata; directory pages expose project details but are not an endorsement. | 2026-08-05 | Open napari Hub submit page (new tab)napari Hub details |
| 186 | 68 | OpenTofu Public Registry | registry.opentofu.org | Developer registries | Free | Quick | Medium | Live, conditional | Release a reusable your tool-related security or privacy module from a correctly named public GitHub repository. | Requires standard module structure, terraform-NAME-TARGETSYSTEM naming and semantic Git tags; confirm external homepage display before investing. | 2026-08-05 official OpenTofu module publishing guide | Open OpenTofu Public Registry submit page (new tab)OpenTofu Public Registry details |
| 187 | 68 | ORCID | orcid.org | Startup directories | Free | Quick | Medium | Needs checking | If the founder contributes to research or innovation, create an ORCID record and add your tool under public website and relevant work links. | This is an individual scholarly or innovation identity, not a company listing; add only truthful contributions and public profile fields. | 2026-08-03 | Open ORCID submit page (new tab)ORCID details |
| 188 | 68 | Participedia | participedia.net | Other opportunities | Free | Quick | Medium | Verified live | Document a real participatory public-decision deployment as a Case, Method or Organization entry with evaluations and project URL. | Community knowledge base, not a product directory; cite credible sources and show genuine participation outcomes. | 2026-08-05 — https://participedia.net/getting-started | Open Participedia submit page (new tab)Participedia details |
| 189 | 68 | Patreon | patreon.com | Profiles and entities | Free | Quick | Medium | Needs checking | Create a truthful your tool/founder profile or content page and add the website link where allowed. | Use a real brand/founder identity; do not create thin duplicate pages. Listing link is currently reported nofollow. | 2026-07-30 • https://www.submission.directory/site/patreon | Open Patreon submit page (new tab)Patreon details |
| 190 | 68 | pckt | pckt.blog | Publishing platforms | Free | Quick | Medium | Verified live | Create a genuine your tool publication and post substantial product research, tutorials or engineering notes. | Sign-in is required; publish original long-form work rather than a link-only profile. | 2026-08-04 | Open pckt submit page (new tab)pckt details |
| 191 | 68 | PitchBook | 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 |
| 192 | 68 | ProcessWire Modules Directory | processwire.com | Other opportunities | Free | Quick | Medium | Verified live | Build a ProcessWire admin module for external URL, metadata, accessibility or security audits, register as a module author and submit it to the official directory. | Author login required; avoid duplicating existing SEO modules and provide a specific external-audit workflow with maintained source, documentation and support. | 2026-08-05 | Open ProcessWire Modules Directory submit page (new tab)ProcessWire Modules Directory details |
| 193 | 68 | PublicAPIs.io | publicapis.io | Other opportunities | Free | Quick | Medium | Live, conditional | List a legitimate documented your tool API in the relevant developer category using the normal or Pro review queue. | API must be real and documented; paid placement should be disclosed and does not guarantee organic ranking value. | 2026-08-05 | Open PublicAPIs.io submit page (new tab)PublicAPIs.io details |
| 194 | 68 | RabbitMQ Community Plugins | rabbitmq.com | Marketplaces and app stores | Free | Quick | Medium | Verified live | Build a stable open-source RabbitMQ plugin for a legitimate your tool security/privacy workflow and ask the RabbitMQ team to list it. | Must be a real Erlang/OTP plugin, safely supervised, tested against supported RabbitMQ releases, distributed as an .ez artifact and maintained by its author. | 2026-08-05 — https://www.rabbitmq.com/plugin-development | Open RabbitMQ Community Plugins submit page (new tab)RabbitMQ Community Plugins details |
| 195 | 68 | Raycast Store | 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 |
| 196 | 68 | Repoz | repoz.io | Developer registries | Free | Quick | Medium | Live, conditional | Submit a maintained your tool open-source component for community review. | Requires a genuine public open-source project; do not submit an empty promotional repository. | 2026-08-05 | Open Repoz submit page (new tab)Repoz details |
| 197 | 68 | Research Software Directory | research-software-directory.org | Software directories | Free | Quick | Medium | Verified live | Request access, then publish a rich your tool research-software page with source, getting-started URL, DOI, contributors, and research mentions. | Only for genuine research software with evidence and public source or releases; truthful affiliation and ORCID information are required. | 2026-08-05 — https://research-software-directory.org/documentation/users/adding-software/ | Open Research Software Directory submit page (new tab)Research Software Directory details |
| 198 | 68 | ResearchGate | 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 |
| 199 | 68 | Roadie Backstage Plugins Directory | roadie.io | Marketplaces and app stores | Free | Quick | Medium | Verified live | Publish a substantial open-source Backstage plugin that integrates your tool privacy/security checks, then request inclusion if the directory does not discover it. | Plugin must be installable, documented and maintained; public directory inclusion is curated/indexed and not guaranteed merely by publishing an npm package. | 2026-08-05 — https://roadie.io/docs/details/requesting-plugins/ | Open Roadie Backstage Plugins Directory submit page (new tab)Roadie Backstage Plugins Directory details |
| 200 | 68 | SciCrunch RRID Resource Portal | scicrunch.org | Other opportunities | Free | Quick | Medium | Verified live | Register a stable, genuinely research-used your tool software, service, or database with accurate maintainer and version metadata. | Must be a persistent research resource; acceptance or identifier assignment is curated and not intended for promotional listings. | 2026-08-05 — https://scicrunch.org/resources/about/resource?form=Resource&rel=26 | Open SciCrunch RRID Resource Portal submit page (new tab)SciCrunch RRID Resource Portal details |
Behind the list
Every row here starts as a line in a sheet, gets normalised into one of 15 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.
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.