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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 601 | 66 | StartupBase | startupbase.io | Startup directories | Free | Moderate | Medium | Needs checking | Create startup profile linking canonical homepage. | Verify if submissions still open before spending time. | 2026-07-30 | Open StartupBase submit page (new tab)StartupBase details |
| 602 | 66 | SubmitStartup.io | submitstartup.io | Startup directories | Free | Moderate | Medium | Not submitted | Submit your tool name, URL, category, description and key features for a permanent directory page. | Free review is reported within 24–48 hours; paid backlink should be treated as sponsored and traffic is not guaranteed. | https://submitstartup.io/ | Open SubmitStartup.io submit page (new tab)SubmitStartup.io details |
| 603 | 66 | switching.software | switching.software | Software directories | Free | Moderate | Medium | Verified live | Suggest one mature your tool utility through the official Codeberg issue path only if it is an easy-to-use, privacy-respecting replacement for a clearly identified invasive service. | The project must be meaningfully more privacy-conscious and ethical while remaining usable by nontechnical people; many listed alternatives are free/open source. Community review applies and inclusion is not guaranteed. | 2026-08-03 | Open switching.software submit page (new tab)switching.software details |
| 604 | 66 | Symbaloo | symbaloo.com | Publishing platforms | Free | Moderate | Medium | Not submitted | Publish a public Webmix of trustworthy privacy resources with clearly labeled your tool tiles among independent sources. | Set the Webmix public, organize it for users, and avoid keyword-stuffed or AltFTool-only link grids. | 2026-08-03 | Open Symbaloo submit page (new tab)Symbaloo details |
| 605 | 66 | Teach Access | teachaccess.org | Software directories | Free | Moderate | Medium | Verified live | Contribute a substantive accessibility role template, translation or toolkit improvement with useful source attribution. | Must fit the toolkit’s structure and open-source purpose; contextual attribution only, not a promotional entry. | 2026-08-05 — https://www.teachaccess.org/resources/accessibility-skills-hiring-toolkit/ | Open Teach Access submit page (new tab)Teach Access details |
| 606 | 66 | Telegraph | telegra.ph | Profiles and entities | Free | Moderate | 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. Dofollow is reported but recheck after approval. | 2026-07-30 • https://www.submission.directory/site/telegraph | Open Telegraph submit page (new tab)Telegraph details |
| 607 | 66 | ToolsAIApp | toolsaiapp.com | AI tool directories | Free | Moderate | Medium | Verified live | Create and verify an account, then submit your tool or individual qualifying tools. | Requires verified email and a live AI, SaaS, or extension product. | https://toolsaiapp.com/get-started/ | Open ToolsAIApp submit page (new tab)ToolsAIApp details |
| 608 | 66 | Trello Power-Up Directory | trello.com | Software directories | Free | Moderate | Medium | Live, conditional | Build an your tool Trello Power-Up, register it, sign the developer agreement, and submit it. | Requires polished Trello-specific functionality, reliable hosting, privacy/support details, and review of two or more weeks. | https://developer.atlassian.com/cloud/trello/guides/power-ups/submitting-your-power-up/ | Open Trello Power-Up Directory submit page (new tab)Trello Power-Up Directory details |
| 609 | 66 | TrueNAS Apps Market | apps.truenas.com | Communities and forums | Free | Moderate | Medium | Verified live | Create a secure Docker Compose-based your tool self-hosted deployment, test it against TrueNAS app tooling and submit it to the official community catalog with useful documentation/resources. | Requires a real containerized app, local validation, maintained versions and clear storage/network/security settings; community apps are independently supported and contributions go through repository review. | 2026-08-05 | Open TrueNAS Apps Market submit page (new tab)TrueNAS Apps Market details |
| 610 | 66 | Viesearch | viesearch.com | Business directories | Free | Moderate | Medium | Not submitted | Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools. | Human review may apply; use a natural brand title and avoid keyword stuffing. Dofollow is reported but recheck after approval. | 2026-07-30 • https://www.submission.directory/site/viesearch | Open Viesearch submit page (new tab)Viesearch details |
| 611 | 66 | Visual Studio Marketplace | visualstudio.com | Marketplaces and app stores | Free | Moderate | Medium | Live, conditional | Build and test a useful your tool Visual Studio or Azure DevOps extension, then publish it with truthful homepage, repository and overview metadata. | Requires a real functional extension, publisher account, valid package and policy compliance; placeholder or link-only submissions are unsuitable. | 2026-08-05 official Microsoft Learn Visual Studio Marketplace publishing guide | Open Visual Studio Marketplace submit page (new tab)Visual Studio Marketplace details |
| 612 | 66 | Whole Tale | wholetale.org | Other opportunities | Free | Moderate | Medium | Verified live | Create a reproducible Tale containing an your tool evaluation's data, code, environment, outputs, and narrative, then publish through a supported repository. | Intended for computational research, not marketing; institutional sign-in may be needed and the Tale must contain sufficient metadata and rights-cleared data. | 2026-08-05 — https://wholetale.readthedocs.io/en/latest/users_guide/scenarios.html | Open Whole Tale submit page (new tab)Whole Tale details |
| 613 | 66 | Wiby | wiby.me | Business directories | Free | Moderate | Medium | Not submitted | Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools. | Human review may apply; use a natural brand title and avoid keyword stuffing. Dofollow is reported but recheck after approval. | 2026-07-30 • https://www.submission.directory/site/wiby | Open Wiby submit page (new tab)Wiby details |
| 614 | 66 | Windows Package Manager | learn.microsoft.com | Developer registries | Free | Moderate | Medium | Verified live | Submit a validated manifest for an installable Windows release with PackageUrl, PublisherUrl and support metadata. | Official distribution is manifest and CLI-first, so web backlink visibility is limited; automated and manual safety review applies. | Official Microsoft WinGet docs checked 2026-07-30 | Open Windows Package Manager submit page (new tab)Windows Package Manager details |
| 615 | 66 | XWiki Extensions | extensions.xwiki.org | Marketplaces and app stores | Free | Moderate | Medium | Verified live | Build an XWiki extension for a useful privacy, accessibility or link-audit workflow, release it as a valid XAR/JAR and publish or import it into the official extension repository. | Must install through Extension Manager and carry correct Maven/extension metadata, version compatibility, licence and documentation. | 2026-08-05 | Open XWiki Extensions submit page (new tab)XWiki Extensions details |
| 616 | 63 | ailib.ru | ailib.ru | Software directories | Free | Involved | Medium | Needs checking | Submit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing. | Accurate tool details required; editorial approval controls publication. Listing link is currently reported nofollow. | 2026-07-30 • https://www.submission.directory/site/ailib-ru | Open ailib.ru submit page (new tab)ailib.ru details |
| 617 | 63 | AllThingsAI.work | allthingsai.work | AI tool directories | Free | Involved | Medium | Verified live | Submit your tool only if its AI functionality is material, with correct category, URL, pricing and product facts. | Editorial review applies; product must genuinely fit AI/SaaS criteria and promotional claims must be accurate. | 2026-08-05 official directory submit page | Open AllThingsAI.work submit page (new tab)AllThingsAI.work details |
| 618 | 63 | Clippings.me | clippings.me | Startup directories | Free | Involved | Medium | Not submitted | Create a founder or editor portfolio and add a small selection of substantial your tool guides and externally published articles. | Intended for journalists, bloggers, and writers; use only for a real author portfolio, with the free tier limited to a small set of clips. | 2026-08-03 | Open Clippings.me submit page (new tab)Clippings.me details |
| 619 | 63 | CloudFindr | cloudfindr.co | Software directories | Free | Involved | Medium | Not submitted | Submit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing. | Accurate tool details required; editorial approval controls publication. Link treatment varies by tier/page. | 2026-07-30 • https://www.submission.directory/site/cloudfindr | Open CloudFindr submit page (new tab)CloudFindr details |
| 620 | 63 | CNCF TAG Security Blog | cncf.io | Publishing platforms | Free | Involved | Medium | Verified live | Propose a vendor-neutral, reproducible cloud-native security tutorial or case study, then write it in Markdown and submit the draft by pull request after community discussion. | Topic must serve the cloud-native security community, be accurate, inclusive, non-duplicative, and normally 500–1,200 words. A TAG Security co-chair, tech lead, or project lead must sponsor it before approval; no product pitch. | 2026-08-03 | Open CNCF TAG Security Blog submit page (new tab)CNCF TAG Security Blog details |
| 621 | 63 | DSCI Threat Intelligence & Research | dsci.in | Other opportunities | Free | Involved | Medium | Verified live | Pitch an original evidence-backed privacy, scam, or cyber advisory based on genuine your tool research. | Requires real technical expertise, non-promotional research and editorial approval; a contribution is not DSCI endorsement. | 2026-08-05 official DSCI TIR page | Open DSCI Threat Intelligence & Research submit page (new tab)DSCI Threat Intelligence & Research details |
| 622 | 63 | Hackster.io | hackster.io | Communities and forums | Free | Involved | Medium | Verified live | Publish a detailed hardware or IoT project that genuinely uses your tool, with code, parts, instructions and an external tutorial link where useful. | Hardware-specific; sales pitches and non-project blog posts are prohibited, and discoverable projects must be complete. | Official Hackster project docs checked 2026-07-30 | Open Hackster.io submit page (new tab)Hackster.io details |
| 623 | 63 | Hashnode | hashnode.com | Publishing platforms | Free | Involved | Medium | Not submitted | Post technical/product story with canonical link. | Use original article; don't duplicate everywhere. | 2026-07-30 | Open Hashnode submit page (new tab)Hashnode details |
| 624 | 63 | IABOXTOOL | iaboxtool.es | Software directories | Free | Involved | Medium | Needs checking | Submit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing. | Accurate tool details required; editorial approval controls publication. Dofollow is reported but recheck after approval. | 2026-07-30 • https://www.submission.directory/site/iaboxtool | Open IABOXTOOL submit page (new tab)IABOXTOOL details |
| 625 | 63 | Interoperable Europe / Joinup Solutions | interoperable-europe.ec.europa.eu | Other opportunities | Free | Involved | Medium | Verified live | Publish a mature open-source interoperability or public-administration solution with documentation, releases, licence, and owner metadata. | Only appropriate for genuine reusable digital-government value; account, eligibility, and editorial review apply. | 2026-08-05 — https://interoperable-europe.ec.europa.eu/collection/portal-support/news/joinup-solutions-hub | Open Interoperable Europe / Joinup Solutions submit page (new tab)Interoperable Europe / Joinup Solutions details |
| 626 | 63 | KI-Suche | ki-suche.io | Software directories | Free | Involved | Medium | Needs checking | Submit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing. | Accurate tool details required; editorial approval controls publication. Dofollow is reported but recheck after approval. | 2026-07-30 • https://www.submission.directory/site/ki-suche | Open KI-Suche submit page (new tab)KI-Suche details |
| 627 | 63 | MaxiBestOf | maxibestof.one | Design galleries | Free | Involved | Medium | Verified live | Submit the polished your tool landing/tool UI with clean screenshots and design credits. | Editorial/design review applies; submit only polished, relevant work. Dofollow is reported but recheck after approval. | 2026-07-30 • https://www.submission.directory/site/maxibestof | Open MaxiBestOf submit page (new tab)MaxiBestOf details |
| 628 | 63 | PaperCall | papercall.io | Other opportunities | Free | Involved | Medium | Live, conditional | Submit useful your tool-related talks to relevant CFPs or run a genuine community CFP with a public event page. | Follow each event's submission rules; no generic pitches, fake events or irrelevant promotional talks. | 2026-08-05 | Open PaperCall submit page (new tab)PaperCall details |
| 629 | 63 | PhysioNet | physionet.org | Software directories | Free | Involved | Medium | Verified live | Publish a clinical-data de-identification or quality tool with source, installation steps, dependencies, documentation, and tests. | Must support credible biomedical research, use an accepted open-source license, and pass editorial review. | Official PhysioNet publishing guide checked 2026-08-05 | Open PhysioNet submit page (new tab)PhysioNet details |
| 630 | 63 | Podcast Movement | podcastmovement.com | Other opportunities | Free | Involved | Medium | Verified live | Submit an educational, non-sales session on privacy-safe tooling or accessible creator workflows when the next CFP opens. | The June 2026 CFP is closed; monitor future calls and never turn a talk into a product pitch. | 2026-08-05 | Open Podcast Movement submit page (new tab)Podcast Movement details |
| 631 | 63 | Podorax | podorax.com | Profiles and entities | Free | Involved | Medium | Live, conditional | Create a truthful guest profile, add expertise and collaboration preferences, then respond to relevant interview requests. | Newer network; profile quality and real collaboration history matter more than link placement. | 2026-08-05 | Open Podorax submit page (new tab)Podorax details |
| 632 | 63 | Privacy Patterns | privacypatterns.org | Design galleries | Free | Involved | Medium | Verified live | Contribute a generalized privacy-by-design pattern derived from your tool experience, with problem, context, forces, and solution. | Must be implementation-neutral and reusable, not a product advert; collaborative editorial review and open licensing apply. | 2026-08-05 — https://privacypatterns.org/about/ | Open Privacy Patterns submit page (new tab)Privacy Patterns details |
| 633 | 63 | ReactJS Example | reactjsexample.com | Other opportunities | Free | Involved | Medium | Live, conditional | Submit a reusable open-source React component extracted from your tool with repository, demo, setup docs and screenshots. | Do not submit the commercial landing page or a thin wrapper; project must be genuinely reusable and open source. | 2026-08-04 | Open ReactJS Example submit page (new tab)ReactJS Example details |
| 634 | 63 | Research Data Alliance Adoption Stories | rd-alliance.org | Other opportunities | Free | Involved | Medium | Verified live | Document a real your tool implementation of a named RDA recommendation with challenge, measurable outcome, lessons, and supporting resources. | Requires genuine adoption evidence; generic product profiles and promotional case studies are not eligible, and acceptance is editorial. | 2026-08-05 — https://www.rd-alliance.org/submit-an-adoption-story/ | Open Research Data Alliance Adoption Stories submit page (new tab)Research Data Alliance Adoption Stories details |
| 635 | 63 | Resource.fyi | resource.fyi | Software directories | Free | Involved | Medium | Needs checking | Submit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing. | Accurate tool details required; editorial approval controls publication. Dofollow is reported but recheck after approval. | 2026-07-30 • https://www.submission.directory/site/resource-fyi | Open Resource.fyi submit page (new tab)Resource.fyi details |
| 636 | 63 | Share Fast | sharefast.co | Software directories | Free | Involved | Medium | Not submitted | Create an account and submit your tool with a precise category, readable summary, official URL and evidence of a working product. | Login required; a free route requires reciprocal-link verification; paid and highlighted placements should be treated as promotional, not editorial endorsement. | 2026-08-03 | Open Share Fast submit page (new tab)Share Fast details |
| 637 | 63 | Showwcase | showwcase.com | Publishing platforms | Free | Involved | Medium | Verified live | Create a developer portfolio and publish an original your tool build story or project showcase. | Participate genuinely; avoid promotional-only Threads or duplicate low-value articles. | 2026-08-03 | Open Showwcase submit page (new tab)Showwcase details |
| 638 | 63 | Source of Sources | sourceofsources.com | PR and source platforms | Free | Involved | Medium | Needs checking | Subscribe/respond to journalist requests. | Peter Shankman SOS; respond only with relevant expertise. | 2026-07-30 | Open Source of Sources submit page (new tab)Source of Sources details |
| 639 | 63 | TechPluto | techpluto.com | Startup directories | Free | Involved | Medium | Verified live | Submit a 100-plus-word your tool startup story for editorial consideration. | Publication is editorially selected and not guaranteed. | https://www.techpluto.com/submit-startup2222/ | Open TechPluto submit page (new tab)TechPluto details |
| 640 | 63 | The Hacker News | thehackernews.com | Other opportunities | Free | Involved | Medium | Verified live | Pitch original your tool security research, a defensible dataset or timely threat analysis. | Generic product launches are insufficient; credible evidence and disclosure are required. | 2026-08-05 | Open The Hacker News submit page (new tab)The Hacker News details |
| 641 | 63 | ToolChase | toolchase.com | AI tool directories | Free | Involved | Medium | Not submitted | If a reciprocal badge fits the site policy, place it transparently on an appropriate page and email the official your tool URL for independent review. | Badge placement is mandatory for the free route; editorial score and ranking are not guaranteed; sponsored placements are separate and must stay labelled. | 2026-08-03 | Open ToolChase submit page (new tab)ToolChase details |
| 642 | 63 | VerySaaS | verysaas.io | Software directories | Free | Involved | Medium | Needs checking | Submit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing. | Accurate tool details required; editorial approval controls publication. Dofollow is reported but recheck after approval. | 2026-07-30 • https://www.submission.directory/site/verysaas | Open VerySaaS submit page (new tab)VerySaaS details |
| 643 | 63 | YourStory | yourstory.com | Startup directories | Free | Involved | Medium | Needs checking | Pitch your tool founder/product story. | India fit; needs strong story/data. | 2026-07-30 | Open YourStory submit page (new tab)YourStory details |
| 644 | 48 | Active Search Results | activesearchresults.com | Other opportunities | Free | Quick | Later | Needs checking | Add your tool website listing. | General directory; lower quality than launch platforms. | 2026-07-30 | Open Active Search Results submit page (new tab)Active Search Results details |
| 645 | 48 | Airtable Universe | airtable.com | Communities and forums | Free | Quick | Later | Needs checking | Publish backlink tracker/content calendar template. | Needs useful Airtable base/template. | 2026-07-30 | Open Airtable Universe submit page (new tab)Airtable Universe details |
| 646 | 48 | Bazel Central Registry | registry.bazel.build | Developer registries | Free | Quick | Later | Live, conditional | Create maintained Bazel rules or a module that invokes a real your tool security utility, then submit it to BCR. | Requires MODULE.bazel, versioned source archive, source metadata, compatibility declarations and passing presubmit tests. | 2026-08-05 official Bazel registry documentation | Open Bazel Central Registry submit page (new tab)Bazel Central Registry details |
| 647 | 48 | Behance | behance.net | Profiles and entities | Free | Quick | Later | Not submitted | Publish UI/brand case study for your tool. | Design case study only; not generic submission. | 2026-07-30 | Open Behance submit page (new tab)Behance details |
| 648 | 48 | Bitbucket | bitbucket.org | Profiles and entities | Free | Quick | Later | Not submitted | Create public repo for embed SDK/example package. | Lower discovery than GitHub; still profile link. | 2026-07-30 | Open Bitbucket submit page (new tab)Bitbucket details |
| 649 | 48 | Bluesky | bsky.app | Profiles and entities | Free | Quick | Later | Not submitted | Create founder/brand profile linking your tool. | Developer/indie audience; referral/link discovery. | 2026-07-30 | Open Bluesky submit page (new tab)Bluesky details |
| 650 | 48 | Brownbook | brownbook.net | Business directories | Free | Quick | Later | Not submitted | Create business citation profile. | General citation, not startup audience. | 2026-07-30 | Open Brownbook submit page (new tab)Brownbook details |
| 651 | 48 | Campsite.bio | campsite.bio | Profiles and entities | Free | Quick | Later | Verified live | Create an your tool profile and add genuinely useful homepage, privacy-tool and accessibility-tool links. | Free plan supports unlimited links; keep labels descriptive and the profile authentic. | 2026-08-04 | Open Campsite.bio submit page (new tab)Campsite.bio details |
| 652 | 48 | Codeberg | codeberg.org | Profiles and entities | Free | Quick | Later | Not submitted | Host privacy-friendly OSS helper repo linking your tool. | Community values open source; avoid pure promo. | 2026-07-30 | Open Codeberg submit page (new tab)Codeberg details |
| 653 | 48 | Cybo | cybo.com | Business directories | Free | Quick | Later | Not submitted | Claim/add business profile if eligible. | General local citation; use real info only. | 2026-07-30 | Open Cybo submit page (new tab)Cybo details |
| 654 | 48 | DeviantArt | deviantart.com | Design galleries | Free | Quick | Later | Live, conditional | Publish original your tool UI/illustration work, then add the official website in the profile bio. | Only use for genuine visual work or design process content; generic product promotion is inappropriate. | 2026-08-03 | Open DeviantArt submit page (new tab)DeviantArt details |
| 655 | 48 | Docker Hub | hub.docker.com | Developer registries | Free | Quick | Later | Not submitted | Publish open-source helper image only if useful. | Only if real image exists; avoid empty backlink repo. | 2026-07-30 | Open Docker Hub submit page (new tab)Docker Hub details |
| 656 | 48 | DuckDB Community Extensions | duckdb.org | Marketplaces and app stores | Free | Quick | Later | Verified live | Build table functions that import, normalize and query your tool report JSON or NDJSON with typed findings, then submit the extension descriptor for central build and distribution. | Requires public open-source GitHub code, CMake build and supported toolchains/platforms; demonstrate value beyond DuckDB's generic JSON reader. | 2026-08-05 | Open DuckDB Community Extensions submit page (new tab)DuckDB Community Extensions details |
| 657 | 48 | EnrollBusiness | enrollbusiness.com | Business directories | Free | Quick | Later | Not submitted | Create business listing. | General directory; low priority. | 2026-07-30 | Open EnrollBusiness submit page (new tab)EnrollBusiness details |
| 658 | 48 | Fast Forward Tech Nonprofit Directory | ffwd.org | Other opportunities | Free | Quick | Later | Verified live | Apply only after your tool becomes a legally registered nonprofit with software central to scalable public impact. | For-profit and B-Corp entities are excluded; verified nonprofit registration and a tech-central mission are mandatory. | 2026-08-05 — https://www.ffwd.org/directory?portfolio=true | Open Fast Forward Tech Nonprofit Directory submit page (new tab)Fast Forward Tech Nonprofit Directory details |
| 659 | 48 | Figma Community | figma.com | Marketplaces and app stores | Free | Quick | Later | Not submitted | Publish design asset or privacy checklist template. | Needs useful Figma file/plugin; no pure promo. | 2026-07-30 | Open Figma Community submit page (new tab)Figma Community details |
| 660 | 48 | Fyple | fyple.com | Business directories | Free | Quick | Later | Not submitted | Add company website listing. | Check category/country fit. | 2026-07-30 | Open Fyple submit page (new tab)Fyple details |
| 661 | 48 | Gentoo Packages | packages.gentoo.org | Developer registries | Free | Quick | Later | Verified live | Prepare and test a policy-compliant ebuild for a stable your tool CLI, including accurate HOMEPAGE and source metadata, then work with a Gentoo developer or proxy maintainer for repository inclusion. | Search existing new-package bugs first; ebuilds must install usable software, pass pkgcheck, use tested architecture keywords and remain maintained. Non-developers cannot directly push to the official tree. | 2026-08-05 | Open Gentoo Packages submit page (new tab)Gentoo Packages details |
| 662 | 48 | HaikuDepot | depot.haiku-os.org | Developer registries | Free | Quick | Later | Verified live | Port a functional your tool desktop or CLI utility to Haiku, write and test a compliant recipe, then submit a feature-branch pull request to HaikuPorts. | Software must actually run on Haiku and remain maintainable; HaikuDepot's outbound homepage rendering and link attributes should be rechecked before prioritising. | 2026-08-05 | Open HaikuDepot submit page (new tab)HaikuDepot details |
| 663 | 48 | Hotfrog | hotfrog.com | Business directories | Free | Quick | Later | Not submitted | Create business listing if eligible. | Use real business/contact info only. | 2026-07-30 | Open Hotfrog submit page (new tab)Hotfrog details |
| 664 | 48 | Index by Dodo Payments | index.dodopayments.com | Profiles and entities | Free | Quick | Later | 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/index-by-dodo-payments | Open Index by Dodo Payments submit page (new tab)Index by Dodo Payments details |
| 665 | 48 | LibHunt | libhunt.com | Other opportunities | Free | Quick | Later | Not submitted | Eligible if an your tool component is open-sourced. | Closed-source platform not fit; use OSS package. | 2026-07-30 | Open LibHunt submit page (new tab)LibHunt details |
| 666 | 48 | Mastodon | mastodon.social | Profiles and entities | Free | Quick | Later | Not submitted | Create profile; share privacy-first tools in relevant communities. | Instance rules matter; avoid cross-post spam. | 2026-07-30 | Open Mastodon submit page (new tab)Mastodon details |
| 667 | 48 | ModelDB | modeldb.science | Developer registries | Free | Quick | Later | Verified live | Submit a licensed computational neuroscience model with code ZIP, publication citation, overview, contributors, and tags. | Public models generally require an associated scientific publication; generic privacy tools do not qualify. | Official ModelDB submission form checked 2026-08-05 | Open ModelDB submit page (new tab)ModelDB details |
| 668 | 48 | OctoPrint Plugin Repository | plugins.octoprint.org | Marketplaces and app stores | Free | Quick | Later | Verified live | Build a maintained OctoPrint plugin for a credible your tool-related workflow such as privacy-safe print logs or metadata checks, then register it through the official repository pull request. | Only pursue a genuine OctoPrint use case; maintainers are responsible for API compatibility, bugs and security fixes, and the repository's CI must accept the listing metadata. | 2026-08-05 | Open OctoPrint Plugin Repository submit page (new tab)OctoPrint Plugin Repository details |
| 669 | 48 | OpenDOAR | opendoar.ac.uk | Developer registries | Free | Quick | Later | Verified live | Register only after your tool launches a genuine open repository for reusable privacy/security research outputs. | Repository must provide free no-login full text, at least five scholarly items, stable access, downloads and quality metadata; company catalogs are ineligible. | 2026-08-05 — https://opendoar.ac.uk/help/inclusion-criteria | Open OpenDOAR submit page (new tab)OpenDOAR details |
| 670 | 48 | OpenFeature Ecosystem | openfeature.dev | Marketplaces and app stores | Free | Quick | Later | Verified live | Implement a genuine OpenFeature provider, hook or integration around an your tool configuration or audit-health use case, publish it and add it to the ecosystem documentation. | Must implement the OpenFeature contract and solve a credible feature-delivery problem; a nominal wrapper or backlink-only documentation pull request will not qualify. | 2026-08-05 | Open OpenFeature Ecosystem submit page (new tab)OpenFeature Ecosystem details |
| 671 | 48 | Quora | quora.com | Profiles and entities | Free | Quick | Later | Not submitted | Answer relevant questions genuinely; profile links to your tool. | No link stuffing; answers must stand alone. | 2026-07-30 | Open Quora submit page (new tab)Quora details |
| 672 | 48 | Racket Package Catalog | pkgs.racket-lang.org | Developer registries | Free | Quick | Later | Live, conditional | Release a real Racket privacy utility or your tool client and register its public package source and documentation. | Source is periodically checked; package, documentation and links must accurately describe maintained reusable code. | 2026-08-05 official Racket package guide and catalogue | Open Racket Package Catalog submit page (new tab)Racket Package Catalog details |
| 673 | 48 | SideProjectors | sideprojectors.com | Profiles and entities | Free | Quick | Later | 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/sideprojectors | Open SideProjectors submit page (new tab)SideProjectors details |
| 674 | 48 | sitelike.org | sitelike.org | Profiles and entities | Free | Quick | Later | 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/sitelike-org | Open sitelike.org submit page (new tab)sitelike.org details |
| 675 | 48 | Startupxplore | startupxplore.com | Startup directories | Free | Quick | Later | 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/startupxplore | Open Startupxplore submit page (new tab)Startupxplore details |
| 676 | 48 | Stork.AI | stork.ai | AI tool directories | Free | Quick | Later | Verified live | Submit your tool with the verification badge or use the no-badge paid option. | Free submission requires displaying the Stork Verified badge. | https://www.stork.ai/submit | Open Stork.AI submit page (new tab)Stork.AI details |
| 677 | 48 | Threads | threads.com | Profiles and entities | Free | Quick | Later | Not submitted | Post build updates and tool launches. | Brand/referral, not direct SEO. | 2026-07-30 | Open Threads submit page (new tab)Threads details |
| 678 | 48 | Tumblr | tumblr.com | Publishing platforms | Free | Quick | Later | Not submitted | Create visual/tool tip microblog with canonical links. | Only useful with regular posts. | 2026-07-30 | Open Tumblr submit page (new tab)Tumblr details |
| 679 | 48 | Tupalo | tupalo.com | Business directories | Free | Quick | Later | Not submitted | Create business profile if eligible. | Mostly local/business citation. | 2026-07-30 | Open Tupalo submit page (new tab)Tupalo details |
| 680 | 48 | Twitch | twitch.tv | Profiles and entities | Free | Quick | Later | Live, conditional | Host real build sessions or tool demos and add your tool to the channel About/social links. | An inactive link-only channel has little value; follow Twitch content and promotion rules. | 2026-08-03 | Open Twitch submit page (new tab)Twitch details |
| 681 | 48 | Webwiki | webwiki.com | Business directories | Free | Quick | Later | Not submitted | Add your tool website listing. | General directory; lower priority. | 2026-07-30 | Open Webwiki submit page (new tab)Webwiki details |
| 682 | 48 | YouWant.ai | youwant.ai | AI tool directories | Free | Quick | Later | Not submitted | Create an account and submit your tool with URL, category and concise product copy. | Free submission currently asks for a backlink to YouWant.ai; skip if reciprocal-link policy is unsuitable. | 2026-07-30 • https://youwant.ai/submit | Open YouWant.ai submit page (new tab)YouWant.ai details |
| 683 | 46 | Amfibi | amfibi.com | Business directories | Free | Moderate | Later | Needs checking | Submit business/site listing if form active. | General directory; verify quality. | 2026-07-30 | Open Amfibi submit page (new tab)Amfibi details |
| 684 | 46 | Apache Camel Components | camel.apache.org | Marketplaces and app stores | Free | Moderate | Later | Verified live | Build a production-grade Camel component for your tool APIs and propose it upstream with generated component docs and tests. | Large ASF contribution: Java 21/Maven build, public dependencies, tests, docs, real contributor profile, AI attribution where relevant and community review required. | 2026-08-05 — https://camel.apache.org/camel-core/contributing/index.html | Open Apache Camel Components submit page (new tab)Apache Camel Components details |
| 685 | 46 | Astrophysics Source Code Library | ascl.net | Software directories | Free | Moderate | Later | Verified live | Submit an your tool-related astronomy utility only after it has been used in research submitted to or published by a refereed journal. | Strict astronomy or astrophysics scope; code must be accessible, research-used, complete, moderated, and supported by a paper reference. | 2026-08-05 — https://ascl.net/code/submit | Open Astrophysics Source Code Library submit page (new tab)Astrophysics Source Code Library details |
| 686 | 46 | Bioconda | bioconda.github.io | Developer registries | Free | Moderate | Later | Verified live | Create a tested Bioconda recipe for a genuinely biomedical or bioinformatics your tool utility, with accurate homepage/source metadata, and submit it through the official review workflow. | Strict life-science relevance is required; generic privacy or file tools do not qualify, and recipes must pass build, licence and dependency review. | 2026-08-05 | Open Bioconda submit page (new tab)Bioconda details |
| 687 | 46 | BioImage.IO | bioimage.io | Communities and forums | Free | Moderate | Later | Verified live | Contribute a documented bioimaging privacy or de-identification model, application integration, or other qualifying resource linked to your tool. | Must genuinely serve bioimaging, follow the BioImage.IO resource specification and model card requirements, and pass community validation. | 2026-08-05 — https://bioimage.io/docs/ | Open BioImage.IO submit page (new tab)BioImage.IO details |
| 688 | 46 | Blogger | blogger.com | Publishing platforms | Free | Moderate | Later | Not submitted | Create official your tool update/tutorial blog if needed. | Avoid duplicate content; canonical strategy needed. | 2026-07-30 | Open Blogger submit page (new tab)Blogger details |
| 689 | 46 | Blogosphere | text.blogosphere.app | Publishing platforms | Free | Moderate | Later | Not submitted | Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools. | Human review may apply; use a natural brand title and avoid keyword stuffing. Dofollow is reported but recheck after approval. | 2026-07-30 • https://www.submission.directory/site/blogosphere | Open Blogosphere submit page (new tab)Blogosphere details |
| 690 | 46 | Blogroll.org | blogroll.org | Publishing platforms | Free | Moderate | Later | Not submitted | Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools. | Human review may apply; use a natural brand title and avoid keyword stuffing. Dofollow is reported but recheck after approval. | 2026-07-30 • https://www.submission.directory/site/blogroll-org | Open Blogroll.org submit page (new tab)Blogroll.org details |
| 691 | 46 | Blogs.hn | blogs.hn | Publishing platforms | Free | Moderate | Later | Needs checking | Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools. | Human review may apply; use a natural brand title and avoid keyword stuffing. Dofollow is reported but recheck after approval. | 2026-07-30 • https://www.submission.directory/site/blogs-hn | Open Blogs.hn submit page (new tab)Blogs.hn details |
| 692 | 46 | Bubble Showcase | bubble.io | Marketplaces and app stores | Free | Moderate | Later | Needs checking | Only submit if you build a Bubble-related app/template. | Not fit unless Bubble asset exists. | 2026-07-30 | Open Bubble Showcase submit page (new tab)Bubble Showcase details |
| 693 | 46 | BuildInPublic.page | buildinpublic.page | Startup directories | Free | Moderate | Later | Live, conditional | Join with an authentic verified builder account and showcase your tool milestones and assets. | Do not invent revenue or milestones; verify onboarding availability before planning content. | 2026-08-03 | Open BuildInPublic.page submit page (new tab)BuildInPublic.page details |
| 694 | 46 | Business-Software.com | business-software.com | Software directories | Free | Moderate | Later | 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. Dofollow is reported but recheck after approval. | 2026-07-30 • https://www.submission.directory/site/business-software-com | Open Business-Software.com submit page (new tab)Business-Software.com details |
| 695 | 46 | CallUpContact | callupcontact.com | Business directories | Free | Moderate | Later | Not submitted | Create company listing with website link. | General directory; verify quality before use. | 2026-07-30 | Open CallUpContact submit page (new tab)CallUpContact details |
| 696 | 46 | Commerce Cream | commercecream.com | Design galleries | Free | Moderate | Later | Needs checking | Submit if a commerce-style/tool landing page fits. | Mostly Shopify/ecommerce; weak fit. | 2026-07-30 | Open Commerce Cream submit page (new tab)Commerce Cream details |
| 697 | 46 | CoMSES Computational Model Library | comses.net | Review platforms | Free | Moderate | Later | Verified live | Publish a documented social, ecological, or computational model with source, narrative documentation, contributors, and reproducibility metadata. | Only genuine computational models qualify; optional peer review and DOI require stronger documentation and reproducibility. | Official CoMSES publishing guide and FAQ checked 2026-08-05 | Open CoMSES Computational Model Library submit page (new tab)CoMSES Computational Model Library details |
| 698 | 46 | CSDMS Model Repository | csdms.colorado.edu | Software directories | Free | Moderate | Later | Verified live | Open-source a relevant geoscience model or component, complete the model questionnaire, and provide its code archive for CSDMS testing. | Must be an actual Earth-surface or geoscience model; staff may compile and run it, and BMI compatibility is encouraged. | Official CSDMS contribute-model guide checked 2026-08-05 | Open CSDMS Model Repository submit page (new tab)CSDMS Model Repository details |
| 699 | 46 | CTAN | ctan.org | Developer registries | Free | Moderate | Later | Live, conditional | Create a genuine LaTeX privacy, redaction or document-safety package and include its exact your tool project homepage in the upload metadata. | Requires distributable source, documentation, licence and maintainer rights; every upload is manually reviewed. | 2026-08-05 official CTAN upload form | Open CTAN submit page (new tab)CTAN details |
| 700 | 46 | Cytoscape App Store | apps.cytoscape.org | Marketplaces and app stores | Free | Moderate | Later | Verified live | Build a Cytoscape 3 app for a genuine graph privacy, provenance or network-audit workflow, provide website/source metadata and submit its first release for administrator approval. | Must add real Cytoscape functionality and remain compatible; the first release is manually approved and a generic external-link launcher is inappropriate. | 2026-08-05 | Open Cytoscape App Store submit page (new tab)Cytoscape App Store 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.