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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 98 | Genially | genially.com | Other opportunities | Free | Moderate | Do first | Verified live | Create an original interactive your tool privacy or accessibility guide and add relevant external actions to cited live tools. | Public work must be original and useful; community submissions become reusable, and student seats cannot publish publicly. | 2026-08-04 | Open Genially submit page (new tab)Genially details |
| 2 | 98 | Open Source Technology Improvement Fund | ostif.org | Other opportunities | Free | Moderate | Do first | Live, conditional | Request an audit for a mature open-source your tool security component, providing maintainer contacts, architecture, threat model, scope, tests, and a remediation commitment. | Intended for real open-source projects able to collaborate throughout scoping, audit, fixes, disclosure, and publication of the final report; selection and funding are not guaranteed. | 2026-08-03 | Open Open Source Technology Improvement Fund submit page (new tab)Open Source Technology Improvement Fund details |
| 3 | 98 | Spreaker | spreaker.com | Other opportunities | Free | Moderate | Do first | Live, conditional | Create or import a genuine your tool show, keep it public, set its official Website field and publish useful episodes. | Correct ownership and original/licensed audio are required; no promotional shell podcast. | 2026-08-04 | Open Spreaker submit page (new tab)Spreaker details |
| 4 | 95 | Podbean | podbean.com | Other opportunities | Free + paid tier | Moderate | Do first | Live, conditional | Publish a real your tool episode and add contextual links to resources actually discussed in its show notes. | No keyword stuffing or shell podcast; some custom show and episode website fields require Unlimited Audio or higher. | 2026-08-04 | Open Podbean submit page (new tab)Podbean details |
| 5 | 88 | FOSS United Grants | fossunited.org | Other opportunities | Paid | Moderate | Do first | Live, conditional | Propose a genuinely open-source, privacy-preserving your tool component with a public roadmap, Indian community benefit, budget, milestones, and maintenance plan. | Funding is for FOSS creators, maintainers, projects, and communities in India; a closed-source commercial site or a marketing-only proposal is not eligible. | 2026-08-03 | Open FOSS United Grants submit page (new tab)FOSS United Grants details |
| 6 | 84 | Amazon Music for Podcasters | 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 |
| 7 | 84 | Bitrise Step Library | 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 |
| 8 | 84 | Castbox | 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 |
| 9 | 84 | CrowdSec Hub | app.crowdsec.net | Other opportunities | Free | Moderate | High | Verified live | Create a defensive parser, scenario, or collection for a real your tool-supported log source, document and test it, then submit it to CrowdSec Hub. | Must use valid labels, tests, fixtures, documentation, and safe detection logic; CI and maintainer review apply. | Official CrowdSec Hub contribution guide checked 2026-08-05 | Open CrowdSec Hub submit page (new tab)CrowdSec Hub details |
| 10 | 84 | Daggerverse | dagger.io | Other opportunities | Free | Moderate | High | Verified live | Create a TypeScript or Go module that runs your tool web audits in CI and returns machine-readable JSON/SARIF with useful pass/fail thresholds, then publish it to Daggerverse. | Use valid semantic version tags, clear descriptions, tests and hand-written examples; Daggerverse indexes source rather than hosting it, so the module must provide real CI value. | 2026-08-05 | Open Daggerverse submit page (new tab)Daggerverse details |
| 11 | 84 | Indie Makers Hub | indiemakershub.com | Other opportunities | Free | Moderate | High | Verified live | Submit your tool through the official reviewed product form. | Google authentication may be required; complete and relevant submissions only. | 2026-08-05 | Open Indie Makers Hub submit page (new tab)Indie Makers Hub details |
| 12 | 84 | Internet.nl Hall of Fame | internet.nl | Other opportunities | Free | Moderate | High | Not submitted | Run the website and email tests, fix IPv6, DNSSEC, HTTPS, security headers, DMARC/DKIM/SPF, STARTTLS/DANE, and RPKI gaps, then retain a 100% score. | The domain is listed only when it scores 100% in the relevant test; the badge may be used only for the matching domain and only while the score remains 100%. | 2026-08-03 | Open Internet.nl Hall of Fame submit page (new tab)Internet.nl Hall of Fame details |
| 13 | 84 | JS.ORG | 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 |
| 14 | 84 | Langflow Component Bundles | langflow.org | Other opportunities | Free | Moderate | High | Verified live | Contribute an your tool provider bundle with useful privacy or security components and provider documentation links. | Requires production-quality backend components, frontend assets, tests and a reviewed Langflow pull request; generic promotion is rejected. | 2026-08-05 | Open Langflow Component Bundles submit page (new tab)Langflow Component Bundles details |
| 15 | 84 | LinuxLinks | linuxlinks.com | Other opportunities | Free | Moderate | High | Live, conditional | Submit a maintained your tool desktop or CLI utility only after it runs natively on a modern Linux distribution and has a public OSI-approved license and repository. | The program must be open source, current, searchable as not already covered, buildable on modern Linux, and accompanied by its repository, license, website, and factual feature summary. | 2026-08-03 | Open LinuxLinks submit page (new tab)LinuxLinks details |
| 16 | 84 | Maven | 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 |
| 17 | 84 | Mixcloud | 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 |
| 18 | 84 | MoodleNet | moodle.net | Other opportunities | Free | Moderate | High | Verified live | Share an openly licensed your tool digital-safety lesson pack or Moodle activity and curate it into an educator-focused collection. | Authentication and publication approval apply; content must be genuine OER with accurate licensing, not a promotional link drop. | 2026-08-05 — https://moodle.com/news/moodlenet-share-curate-open-educational-resources/ | Open MoodleNet submit page (new tab)MoodleNet details |
| 19 | 84 | New Relic Instant Observability | 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 |
| 20 | 84 | ODI Open Data Certificates | certificates.theodi.org | Other opportunities | Free | Moderate | High | Verified live | Publish a machine-readable privacy, accessibility, or scam-pattern dataset or API and complete its evidence-based public certificate. | Applies to an actual open dataset, not the product alone; it must be accessible, licensed, documented, maintained, and accurately described. | 2026-08-05 — https://certificates.theodi.org/ | Open ODI Open Data Certificates submit page (new tab)ODI Open Data Certificates details |
| 21 | 84 | OPA Ecosystem | openpolicyagent.org | Other opportunities | Free | Moderate | High | Verified live | Build a functional OPA/Rego privacy-policy integration or developer tool, document it, then add its ecosystem entry and logo through the official docs repository. | Must be a real OPA-related project or integration; create the required ecosystem markdown and icon, keep claims factual, and pass review. | Official OPA contributing and ecosystem-listing instructions checked 2026-08-05 | Open OPA Ecosystem submit page (new tab)OPA Ecosystem details |
| 22 | 84 | Open Textbook Library | 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 |
| 23 | 84 | OpenLearn Create | open.edu | Other opportunities | Free | Moderate | High | Verified live | Publish a free mini-course on privacy, redaction, scam detection, or accessibility with genuine your tool exercises in the curriculum. | Publication is checked; clear all rights, meet accessibility requirements, use appropriate licensing, and avoid direct marketing. | 2026-08-05 — https://www.open.edu/openlearncreate/local/ocwcreatecourse/gettingstarted.php | Open OpenLearn Create submit page (new tab)OpenLearn Create details |
| 24 | 84 | Payhip | payhip.com | Other opportunities | Free | Moderate | High | Verified live | Publish a genuinely useful free privacy checklist, redaction template, or safety workbook that complements your tool and has standalone value. | The resource must be substantive and rights-cleared; disclose AltFTool links and avoid a one-page promotional download. | Official Payhip pricing and publishing path checked 2026-08-07 | Open Payhip submit page (new tab)Payhip details |
| 25 | 84 | Podcast Addict | podcastaddict.com | Other opportunities | Free | Moderate | High | Live, conditional | Submit a valid public your tool podcast feed and keep website and episode-link metadata accurate. | Feed must contain playable genuine episodes; directory review may take time. | 2026-08-04 | Open Podcast Addict submit page (new tab)Podcast Addict details |
| 26 | 84 | REUSE API | reuse.software | Other opportunities | Free | Moderate | High | Live, conditional | Make a real public your tool repository REUSE-compliant, register its Git URL, and link the resulting compliance page from project docs. | Public maintained repository only; main branch is checked and email confirmation is required; fix findings rather than using a decorative badge. | 2026-08-05 official REUSE API and register pages | Open REUSE API submit page (new tab)REUSE API details |
| 27 | 84 | Scalar | scalar.usc.edu | Other opportunities | Free | Moderate | High | Verified live | Publish a coherent multimedia field guide on privacy, scam evidence, or accessible documents with cited your tool demonstrations. | Create a real scholarly or educational book, make it public, and use only owned or properly licensed media. | 2026-08-05 — https://scalar.usc.edu/works/guide2/creating-an-account | Open Scalar submit page (new tab)Scalar details |
| 28 | 84 | Snakemake Workflow Catalog | snakemake.github.io | Other opportunities | Free | Moderate | High | Verified live | Publish a public reproducible privacy-safe research workflow with a Snakefile, README, configuration, catalog metadata, and tests. | Public GitHub repository and Snakemake workflow structure are required; standardized layout strengthens catalog integration. | Official Snakemake Workflow Catalog guide checked 2026-08-05 | Open Snakemake Workflow Catalog submit page (new tab)Snakemake Workflow Catalog details |
| 29 | 84 | Spotify for Creators | creators.spotify.com | Other opportunities | Free | Moderate | High | Live, conditional | Host or claim a genuine your tool show, verify the RSS email, and publish accurate episode notes with relevant HTTPS resources. | Ownership verification is required; links must support real episode content and display behavior varies by app. | 2026-08-05 | Open Spotify for Creators submit page (new tab)Spotify for Creators details |
| 30 | 84 | StackBlitz | stackblitz.com | Other opportunities | Free | Moderate | High | Verified live | Publish a working browser demo or starter that teaches an your tool integration, with accurate title, description and canonical documentation link. | Make the project genuinely reusable and public; links may be treated as user-generated and SEO value is not guaranteed. | 2026-08-03 | Open StackBlitz submit page (new tab)StackBlitz details |
| 31 | 84 | Swagger Studio | app.swaggerhub.com | Other opportunities | Free | Moderate | High | Live, conditional | Publish a real your tool OpenAPI definition publicly with an accurate description and external documentation URL. | API must be genuine and the spec valid; set visibility to public and publication status accurately, with no credentials in examples. | https://support.smartbear.com/swagger/studio/docs/en/manage-apis/publish-an-api.html | Open Swagger Studio submit page (new tab)Swagger Studio details |
| 32 | 84 | Wikiversity | en.wikiversity.org | Other opportunities | Free | Moderate | High | Verified live | Develop a neutral, sourced learning project about privacy, accessibility, or online-scam literacy and cite your tool only in relevant exercises. | Content must be freely licensed, verifiable, collaborative, and non-promotional; external links must directly serve learning. | 2026-08-05 — https://en.wikiversity.org/wiki/Creating_Wikiversity_Courses | Open Wikiversity submit page (new tab)Wikiversity details |
| 33 | 84 | Working Not Working | workingnotworking.com | Other opportunities | Free | Moderate | High | Verified live | Build a genuine founder or designer profile and publish a detailed your tool UX, accessibility, or privacy-design case study with accurate role and process credits. | Use a real individual creative identity, not a company backlink shell; upload original work, credit collaborators, and explain the project. | Official Working Not Working member profile guidance checked 2026-08-07 | Open Working Not Working submit page (new tab)Working Not Working details |
| 34 | 84 | YunoHost Apps | apps.yunohost.org | Other opportunities | Free | Moderate | High | Verified live | Package a free-software self-hosted your tool deployment, implement reliable install, upgrade, backup and restore operations, then submit it to the official app catalog. | Only freely licensed software is accepted; app-quality tests, packaging conventions, security, resource use and long-term maintenance must meet YunoHost review. | 2026-08-05 | Open YunoHost Apps submit page (new tab)YunoHost Apps details |
| 35 | 81 | Apple Podcasts for Creators | podcasters.apple.com | Other opportunities | Free + paid tier | Moderate | High | Live, conditional | Submit a genuine your tool podcast RSS feed in Podcasts Connect and include the official show website in valid metadata. | Requires at least one episode, compliant RSS, artwork, content rights, technical validation, and Apple review. | 2026-08-05 | Open Apple Podcasts for Creators submit page (new tab)Apple Podcasts for Creators details |
| 36 | 81 | Luma | luma.com | Other opportunities | Free + paid tier | Moderate | High | Live, conditional | Publish a real your tool webinar, demo or workshop with a contextual canonical link in its event details. | Event details and host identity must be genuine; do not create empty or duplicate promotional events. | 2026-08-05 | Open Luma submit page (new tab)Luma details |
| 37 | 81 | Replit | replit.com | Other opportunities | Free + paid tier | Moderate | High | Verified live | Publish a focused open your tool demo or developer utility and link its canonical your tool page from the app and project description. | A real working app is required; publishing may request a payment method and hosting usage can cost money. | https://docs.replit.com/learn/projects-and-artifacts/replit-deployments | Open Replit submit page (new tab)Replit details |
| 38 | 81 | Skillshare | skillshare.com | Other opportunities | Free + paid tier | Moderate | High | Verified live | Apply with an original class outline and teaching sample for privacy-safe design, accessibility, or a practical productivity workflow, then build the class project and lessons if approved. | First-time teachers require approval; applications are currently English-only and must fit accepted or in-demand categories. Every class must meet content and class-quality guidelines and cannot function as an advertisement. | 2026-08-03 | Open Skillshare submit page (new tab)Skillshare details |
| 39 | 80 | NASSCOM Membership | nasscom.in | Other opportunities | Not stated | Moderate | High | Live, conditional | Apply using an India-registered your tool company/startup and provide the required entity and revenue documents. | Due diligence may take 10–15 business days and include documents, calls or a site visit; membership is not guaranteed. | 2026-08-04 | Open NASSCOM Membership submit page (new tab)NASSCOM Membership details |
| 40 | 74 | Civic Tech Field Guide | civictech.guide | Other opportunities | Paid | Moderate | High | Verified live | Submit only your tool tools with a clear civic or public-interest use case, using the official project name, URL, one-sentence description, accurate category, and contact email. | The project must genuinely fit civic technology or an adjacent public-interest field. Submissions enter a moderation queue; quote third-party text only with attribution and do not treat the form as a generic SaaS directory. | 2026-08-03 | Open Civic Tech Field Guide submit page (new tab)Civic Tech Field Guide details |
| 41 | 74 | IAAP | accessibilityassociation.org | Other opportunities | Paid | Moderate | High | Live, conditional | Enroll an eligible your tool entity as a small-organization Associate Corporate member and opt into the directory. | Approval and membership terms apply; strong fit requires genuine accessibility practice and participation. | 2026-08-04 | Open IAAP submit page (new tab)IAAP details |
| 42 | 74 | MyData Global | mydata.org | Other opportunities | Paid | Moderate | High | Live, conditional | Join as an eligible small business and opt in to publication of your tool organization name and profile. | Strong fit only if AltFTool commits to human-centric data-rights principles; not for backlink-only membership. | 2026-08-04 | Open MyData Global submit page (new tab)MyData Global details |
| 43 | 66 | ArtStation | artstation.com | Other opportunities | Free | Moderate | Medium | Verified live | Publish an original UI/UX visual case study showing your tool interaction design, accessibility states, and design process, with a contextual project URL. | Use ArtStation only if there is substantial original visual/design work, complete project metadata, and rights-cleared assets; it is not a generic SaaS listing. Disclose the creator's relationship to AltFTool. Projects and links are UGC, subject to platform moderation, and neither discovery nor followed-link status is guaranteed. | 2026-08-03 | Open ArtStation submit page (new tab)ArtStation details |
| 44 | 66 | balenaHub | hub.balena.io | Other opportunities | Free | Moderate | Medium | Verified live | Build a deployable edge privacy utility or reusable block, add balena.yml metadata, public source, configuration and multi-device tests, then publish it on balenaHub. | Must be a real balena app or block, link a GitHub repository, avoid embedded secrets, support claimed architectures, and maintain deployability. | Official balena apps, blocks, and balenaHub publishing docs checked 2026-08-05 | Open balenaHub submit page (new tab)balenaHub details |
| 45 | 66 | Charmhub | charmhub.io | Other opportunities | Free | Moderate | Medium | Verified live | Package a maintained self-hosted your tool deployment as a Juju charm with canonical documentation, source, and support links. | Register the charm name, upload and release a tested charm; formal community review is required for search visibility. | Official Charmcraft charm management documentation checked 2026-08-07 | Open Charmhub submit page (new tab)Charmhub details |
| 46 | 66 | CK-12 FlexBooks | ck12.org | Other opportunities | Free | Moderate | Medium | Verified live | Create an age-appropriate digital-citizenship or privacy FlexBook chapter with practical your tool exercises. | Must be substantive K-12 educational content with correct authorship; do not create a product-only page. | 2026-08-05 — https://help.ck12.org/hc/en-us/articles/200448244-How-to-Customize-a-FlexBook-Textbook-or-Read-Modality | Open CK-12 FlexBooks submit page (new tab)CK-12 FlexBooks details |
| 47 | 66 | Coolify One-Click Services | coolify.io | Other opportunities | Free | Moderate | Medium | Verified live | Create and fully test an your tool Docker Compose service template, add metadata, logo, and documentation, then submit it to Coolify's next branch. | The upstream Git repository currently needs at least 1,000 stars; template, secrets, storage, port, docs, and review rules apply. | Official Coolify service-contribution guide checked 2026-08-05 | Open Coolify One-Click Services submit page (new tab)Coolify One-Click Services details |
| 48 | 66 | ELIXIR TeSS | tess.elixir-europe.org | Other opportunities | Free | Moderate | Medium | Verified live | Register a substantive life-science privacy, medical-data de-identification, or research-data training resource hosted by your tool. | Content must be relevant to life sciences or an adjacent field; account and accurate metadata required, while harvested providers need admin approval. | 2026-08-05 — https://tess.elixir-europe.org/about/registering | Open ELIXIR TeSS submit page (new tab)ELIXIR TeSS details |
| 49 | 66 | FAIRsharing | fairsharing.org | Other opportunities | Free | Moderate | Medium | Verified live | Submit a genuine your tool-maintained database, reusable reporting standard, or data policy with complete stewardship metadata. | Generic software and individual datasets are out of scope; record type must match FAIRsharing scope and is curated. | 2026-08-05 — https://fairsharing.org/new/ | Open FAIRsharing submit page (new tab)FAIRsharing details |
| 50 | 66 | GovStack | govstack.global | Other opportunities | Free | Moderate | Medium | Verified live | Join a working group and contribute a substantive building-block specification, use case, reference implementation or new proposal. | Needs sustained expert contribution; Apache-2.0/IP terms apply; link must be directly relevant to the implementation. | 2026-08-05 — https://specs.govstack.global/overview/25q2-1/contributing | Open GovStack submit page (new tab)GovStack details |
| 51 | 66 | Homebrew | brew.sh | Other opportunities | Free | Moderate | Medium | Live, conditional | After releasing a real your tool CLI or native app, submit a tested formula or cask with its canonical homepage. | Formula must meet open-source, stability, build and test rules; casks need a supported upstream binary and notability may affect acceptance. | 2026-08-05 official Homebrew Adding Software and Acceptable Formulae guides | Open Homebrew submit page (new tab)Homebrew details |
| 52 | 66 | Humanitarian Data Exchange | data.humdata.org | Other opportunities | Free | Moderate | Medium | Verified live | Join an approved organization and publish a documented humanitarian privacy/safety dataset with licence and responsible-access settings. | OCHA reviews organization identity and scope; data must be humanitarian, and sensitive data needs responsible handling; a PDF alone is not a dataset. | 2026-08-05 — https://centre.humdata.org/ufaqs/how-do-i-share-data-on-hdx/ | Open Humanitarian Data Exchange submit page (new tab)Humanitarian Data Exchange details |
| 53 | 66 | JSON Schema Store | schemastore.org | Other opportunities | Free | Moderate | Medium | Live, conditional | After your tool has a stable, commonly used JSON or YAML configuration format, contribute its accurate schema and test fixtures so editors can provide validation, completion, and tooltips. | SchemaStore is for known file formats, not marketing pages. The schema must be valid, match real files, include the required catalog metadata and tests, pass CI, and stay synchronized with product changes; submit through the community repository review process. | 2026-08-03 | Open JSON Schema Store submit page (new tab)JSON Schema Store details |
| 54 | 66 | NLnet Foundation | nlnet.nl | Other opportunities | Free | Moderate | Medium | Live, conditional | Apply with a concrete your tool privacy, security or user-autonomy FOSS work package, milestones, budget and public repository. | Highly selective; active-call fit and fully FOSS/open results required. Only accepted projects receive a linked public page. | 2026-08-04 | Open NLnet Foundation submit page (new tab)NLnet Foundation details |
| 55 | 66 | Octopus | octopus.ac | Other opportunities | Free | Moderate | Medium | Verified live | Use ORCID to publish genuine research stages—problem, method, data or analysis—with contextual your tool code/data links. | Research record only, not marketing; stages must connect accurately and follow licensing, authorship and research-ethics rules. | 2026-08-05 — https://www.octopus.ac/ | Open Octopus submit page (new tab)Octopus details |
| 56 | 66 | Omeka S Modules | omeka.org | Other opportunities | Free | Moderate | Medium | Verified live | Create a maintained Omeka S module for collection metadata privacy, accessibility or link auditing, package it correctly and register the add-on with project and author links. | Must be a functional Omeka module with compatible releases, clear documentation and support; directory review does not constitute a security endorsement. | 2026-08-05 | Open Omeka S Modules submit page (new tab)Omeka S Modules details |
| 57 | 66 | Open Research Knowledge Graph | orkg.org | Other opportunities | Free | Moderate | Medium | Verified live | Create a rigorous structured comparison of published privacy, redaction, or accessibility studies and include your tool only when supported by research. | Model at least two scholarly contributions accurately, cite sources, avoid self-serving comparisons, and accept permanent versioning. | 2026-08-05 — https://academy.orkg.org/courses/comparison-course.html | Open Open Research Knowledge Graph submit page (new tab)Open Research Knowledge Graph details |
| 58 | 66 | OSF | osf.io | Other opportunities | Free | Moderate | Medium | Verified live | Create a public reproducibility project for your tool research, datasets, test methods, or privacy benchmarks and link the genuine project/site. | Best for real research workflows. Projects start private; review files and metadata before making them public. | https://help.osf.io/article/285-control-your-privacy-settings | Open OSF submit page (new tab)OSF details |
| 59 | 66 | portfolio.dev | portfolio.dev | Other opportunities | Free | Moderate | Medium | Verified live | Create a public case-study portfolio and add your tool with screenshots, live demo and build rationale. | Publish a genuine project case study rather than a thin promotional card. | 2026-08-03 | Open portfolio.dev submit page (new tab)portfolio.dev details |
| 60 | 66 | ReliefWeb | reliefweb.int | Other opportunities | Free | Moderate | Medium | Verified live | After your tool has eligible ReliefWeb content, request publishing access and submit humanitarian reports or training from verified owned URLs. | Only listed organizations with existing reports/jobs/trainings may use publishing access; trusted source URLs, taxonomy and editor review apply. | 2026-08-05 — https://apidoc.reliefweb.int/publishing | Open ReliefWeb submit page (new tab)ReliefWeb details |
| 61 | 66 | RenkuLab | renkulab.io | Other opportunities | Free | Moderate | Medium | Verified live | Create a reproducible your tool evaluation project with code, data connectors, environment, narrative, and a public session launcher. | Publish a genuine research project, protect credentials and sensitive data, document reproducibility, and set visibility to Public. | 2026-08-05 — https://docs.renkulab.io/en/2.19.0/docs/users/use-cases/showcase-your-project-on-renku/ | Open RenkuLab submit page (new tab)RenkuLab details |
| 62 | 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 |
| 63 | 63 | BCcampus Open Collection | bccampus.ca | Other opportunities | Free + paid tier | Moderate | Medium | Verified live | Publish a Canadian-ready, openly licensed privacy or digital-citizenship textbook and use Contribute → Suggest a Textbook. | Needs textbook-style objectives and activities, editable open licence/source files, accessible formats and Canadian relevance. | 2026-08-05 — https://collection.bccampus.ca/about/ | Open BCcampus Open Collection submit page (new tab)BCcampus Open Collection details |
| 64 | 63 | Buzzsprout | buzzsprout.com | Other opportunities | Free + paid tier | Moderate | Medium | Live, conditional | Launch a real your tool educational podcast, complete its public site, and cite relevant tools and sources in useful show notes. | Choose one primary host; publish original episodes and do not duplicate feeds solely to manufacture links. | 2026-08-05 | Open Buzzsprout submit page (new tab)Buzzsprout details |
| 65 | 63 | Calaméo | calameo.com | Other opportunities | Free + paid tier | Moderate | Medium | Verified live | Publish a polished original guide, research brief, or accessibility zine as a public document, with useful references and a relevant your tool link inside the editorial content. | Public publications are searchable and reusable through platform features; upload only lawful content AltFTool owns or licenses. BASIC includes limited features/advertising, and abusive SEO, spam, or promotional document dumping is explicitly prohibited. | 2026-08-03 | Open Calaméo submit page (new tab)Calaméo details |
| 66 | 63 | Cargo | cargo.site | Other opportunities | Free + paid tier | Moderate | Medium | Live, conditional | Create an authentic your tool or founder design portfolio with substantive case studies and contextual links to shipped tools. | Use only real design/product work; public pages may be indexed, but do not create a thin backlink microsite. | 2026-08-04 | Open Cargo submit page (new tab)Cargo details |
| 67 | 63 | Crevado | crevado.com | Other opportunities | Free + paid tier | Moderate | Medium | Not submitted | Create a complete your tool product case study and add the canonical URL naturally within project text or a linked image. | Keep the portfolio public and substantive; custom-domain and other advanced features may require Premium. | 2026-08-03 | Open Crevado submit page (new tab)Crevado details |
| 68 | 63 | Journo Portfolio | journoportfolio.com | Other opportunities | Free + paid tier | Moderate | Medium | Not submitted | Create a founder portfolio with original your tool launch notes or product case studies and use an external-link page for the canonical website. | The free plan is limited to a home page and ten items; publish meaningful original work, not a backlink-only shell. | 2026-08-03 | Open Journo Portfolio submit page (new tab)Journo Portfolio details |
| 69 | 63 | Milkshake | milkshake.app | Other opportunities | Free + paid tier | Moderate | Medium | Verified live | Build a free mobile your tool mini-site with brand story, key collections, demos and contact links. | App-based setup; publish substantive cards instead of a bare backlink page. | 2026-08-04 | Open Milkshake submit page (new tab)Milkshake details |
| 70 | 63 | Portship | portship.app | Other opportunities | Free + paid tier | Moderate | Medium | Verified live | Claim a builder profile and add your tool as a shipped project using its live public URL. | Best for genuinely AI-assisted builds; keep project status and ownership accurate. | 2026-08-03 | Open Portship submit page (new tab)Portship details |
| 71 | 63 | pretalx | pretalx.com | Other opportunities | Free + paid tier | Moderate | Medium | Live, conditional | Use pretalx for a genuine your tool community conference or submit relevant talks to events that use the platform. | Public pages require a real conference and accepted content; trial-only pages are not a backlink strategy. | 2026-08-05 | Open pretalx submit page (new tab)pretalx details |
| 72 | 63 | Zotero Groups | zotero.org | Other opportunities | Free + paid tier | Moderate | Medium | Verified live | Create a public privacy-tool research library with credible standards, papers, and references, including only genuinely relevant your tool documentation. | Curate a real scholarly collection rather than a promotional list; public-open groups cannot share files, and visibility depends on settings. | Official Zotero Groups documentation checked 2026-08-07 | Open Zotero Groups submit page (new tab)Zotero Groups details |
| 73 | 62 | IBM Cloud Catalog | ibm.com | Other opportunities | Not stated | Moderate | Medium | Verified live | Package a deployable self-hosted your tool architecture for IBM Cloud, complete Partner Center onboarding, and request public catalog approval. | A working deployable architecture, complete onboarding checklist, testing, approval, ongoing maintenance, and deprecation management are required. | Official IBM Cloud catalog publishing documentation checked 2026-08-07 | Open IBM Cloud Catalog submit page (new tab)IBM Cloud Catalog details |
| 74 | 62 | Red Hat Ecosystem Catalog | redhat.com | Other opportunities | Not stated | Moderate | Medium | Verified live | Package a supported self-hosted your tool edition or integration for RHEL or OpenShift and complete Red Hat Partner Validation for a catalog page. | Must genuinely run on and support RHEL or OpenShift; partner statements, documentation, validation, and Red Hat review are required. | Official Red Hat Partner Validation Guide for 2026 checked 2026-08-07 | Open Red Hat Ecosystem Catalog submit page (new tab)Red Hat Ecosystem Catalog details |
| 75 | 56 | Digital Public Goods Alliance | digitalpublicgoods.net | Other opportunities | Paid | Moderate | Medium | Verified live | After your tool has a genuinely open-source, well-documented public-interest component, complete the eligibility assessment and nominate that specific component. | High bar: open licensing, ownership, documentation, platform independence, standards, privacy, security, non-PII handling, lawful content, and Sustainable Development Goal relevance must all be evidenced. Nomination is not guaranteed recognition. | 2026-08-03 | Open Digital Public Goods Alliance submit page (new tab)Digital Public Goods Alliance details |
| 76 | 56 | Dunked | dunked.com | Other opportunities | Paid | Moderate | Medium | Live, conditional | Create a portfolio for genuine your tool product/design work and use each project's external URL field for the matching live page. | Only showcase work actually produced; complete project descriptions and avoid duplicate promotional pages. | 2026-08-04 | Open Dunked submit page (new tab)Dunked details |
| 77 | 56 | Format | format.com | Other opportunities | Paid | Moderate | Medium | Not submitted | Create a founder or product-design portfolio with an original your tool case study and add the canonical site as an external menu link. | This is a paid portfolio platform; the case study should demonstrate real work and should not exist only to manufacture a link. | 2026-08-03 | Open Format submit page (new tab)Format details |
| 78 | 56 | Lemon Squeezy | lemonsqueezy.com | Other opportunities | Paid | Moderate | Medium | Live, conditional | Create a legitimate free or paid your tool resource or software product and publish it on a branded hosted storefront. | Store activation requires identity and business review; never create a dummy product only for a link. | 2026-08-05 | Open Lemon Squeezy submit page (new tab)Lemon Squeezy details |
| 79 | 56 | Open Technology Fund | opentech.fund | Other opportunities | Paid | Moderate | Medium | Live, conditional | Apply only with a validated open-source privacy or anti-surveillance project that directly helps users facing repressive censorship or surveillance. | OTF requires concrete internet-freedom impact and identifiable beneficiary communities in repressive environments; a generic privacy-tool catalogue or claim that it helps everyone will not qualify. | 2026-08-03 | Open Open Technology Fund submit page (new tab)Open Technology Fund details |
| 80 | 56 | OpenSSF | openssf.org | Other opportunities | Paid | Moderate | Medium | Live, conditional | Apply as a General Member only if your tool will meaningfully contribute engineering or resources to open-source security. | Not worthwhile for a backlink alone; free Associate tier is restricted to qualifying nonprofits, academia or government. | 2026-08-04 | Open OpenSSF submit page (new tab)OpenSSF details |
| 81 | 56 | Principles for Digital Development | digitalprinciples.org | Other opportunities | Paid | Moderate | Medium | Verified live | Obtain senior approval, submit the signed endorsement materials, implement the Principles and share a real case study. | This is a public operational commitment; organization must apply the Principles in policy/process and participate in the community. | 2026-08-05 — https://digitalprinciples.org/endorsers/ | Open Principles for Digital Development submit page (new tab)Principles for Digital Development details |
| 82 | 46 | FilePuma | filepuma.com | Other opportunities | Free | Moderate | Later | Live, conditional | Submit only after your tool releases a signed Windows desktop utility. | Not suitable for a web-only site; requires downloadable software or PAD data. | https://www.filepuma.com/submit_program/ | Open FilePuma submit page (new tab)FilePuma details |
| 83 | 46 | Maven Central | sonatype.org | Other opportunities | Free | Moderate | Later | Live, conditional | Release a genuine your tool SDK, verify its namespace, sign artifacts, and include accurate project, SCM, license and developer URLs. | Strict coordinates, signatures, sources, Javadocs and metadata apply; never publish a placeholder artifact for a link. | 2026-08-05 official Maven Central publishing documentation | Open Maven Central submit page (new tab)Maven Central details |
| 84 | 46 | Preprints.org | preprints.org | Other opportunities | Free | Moderate | Later | Verified live | Publish an original benchmark or evaluation study of local-first privacy or security tooling with open code, data, and your tool implementation. | Requires a full scholarly manuscript, truthful authorship, data and ethics disclosures, bibliography, and CC BY licensing; no marketing. | 2026-08-05 — https://www.preprints.org/instructions-for-authors | Open Preprints.org submit page (new tab)Preprints.org details |
| 85 | 46 | ResearchBox | researchbox.org | Other opportunities | Free | Moderate | Later | Verified live | Organize the complete code, data, materials, and outputs behind a real your tool evaluation study into a public citable box. | Designed for supporting research artifacts, not promotion; public boxes are licensed, versioned, searchable, and archived. | 2026-08-05 — https://researchbox.org/index.php | Open ResearchBox submit page (new tab)ResearchBox details |
| 86 | 46 | Sellfy | sellfy.com | Other opportunities | Free | Moderate | Later | Verified live | Publish a substantive your tool privacy template, workbook, or creator resource with a complete description, original previews, and accurate licensing. | The plan is paid after trial and has a sales cap; use only rights-cleared useful products and do not buy solely for a backlink. | Official Sellfy pricing checked 2026-08-07 | Open Sellfy submit page (new tab)Sellfy details |
| 87 | 46 | WikiEducator | wikieducator.org | Other opportunities | Free | Moderate | Later | Verified live | Author a freely licensed hands-on module for safe document sharing or privacy-first web use with relevant your tool examples. | Community OER only, no marketing pages; platform continuity changed recently, so verify current moderation before investing heavily. | 2026-08-05 — https://wikieducator.org/OER_Handbook/educator | Open WikiEducator submit page (new tab)WikiEducator details |
| 88 | 42 | Foundation for Public Code | publiccode.net | Other opportunities | Not stated | Moderate | Later | Verified live | If an your tool component is built with or for a public body, publish a standards self-assessment and pursue stewardship/assessment. | Requires reusable, documented public-purpose OSS developed with/for public organizations; certification remains conditional. | 2026-08-05 — https://standard.publiccode.net/README.html | Open Foundation for Public Code submit page (new tab)Foundation for Public Code details |
| 89 | 36 | Agentic AI Foundation | aaif.io | Other opportunities | Paid | Moderate | Later | Verified live | Apply only with a meaningful open agent-security or MCP-governance contribution and an ongoing participation plan. | Linux Foundation prerequisites and parent-company headcount rules apply; associate status is restricted and membership is not certification. | 2026-08-05 official Agentic AI Foundation members page | Open Agentic AI Foundation submit page (new tab)Agentic AI Foundation details |
| 90 | 36 | CiviCERT | civicert.org | Other opportunities | Paid | Moderate | Later | Verified live | Apply only after operating a real civil-society digital-security help desk and meeting network operations and vetting requirements. | Adopt vetting/information policies and code of conduct, track cases/share threats, and obtain vouches from two members at different organizations. | 2026-08-05 — https://www.civicert.org/apply-to-be-a-member/ | Open CiviCERT submit page (new tab)CiviCERT details |
| 91 | 36 | Directory of Open Access Books | doabooks.org | Other opportunities | Paid | Moderate | Later | Verified live | Apply only after your tool operates a genuine OA scholarly-book publishing program, then submit peer-reviewed privacy-tech books. | Publisher-level path, not a one-off product listing; transparent peer review, open licences, HTTPS publishing site and scholarly books required. | 2026-08-05 — https://www.doabooks.org/en/publishers/join-doab | Open Directory of Open Access Books submit page (new tab)Directory of Open Access Books details |
| 92 | 36 | Fabrik | fabrik.io | Other opportunities | Paid | Moderate | Later | Live, conditional | Publish real your tool film, design, illustration or product case studies and connect them to the appropriate project pages. | Strong creative-work fit only; no credit card for trial, but a lasting public portfolio requires a paid plan. | 2026-08-04 | Open Fabrik submit page (new tab)Fabrik details |
| 93 | 36 | Krop | krop.com | Other opportunities | Paid | Moderate | Later | Live, conditional | Build a real founder or your tool creative portfolio and link relevant case studies to the corresponding live tools. | Designed for creative professionals; paid ongoing hosting and authentic portfolio work are required. | 2026-08-04 | Open Krop submit page (new tab)Krop details |
| 94 | 36 | LF AI & Data Foundation | lfaidata.foundation | Other opportunities | Paid | Moderate | Later | Verified live | Join only when your tool will fund and actively contribute to open-source AI or data work. | Linux Foundation corporate membership rules apply; free associate status is limited to approved nonprofits, projects or government bodies. | 2026-08-05 official LF AI & Data join page | Open LF AI & Data Foundation submit page (new tab)LF AI & Data Foundation details |
| 95 | 36 | OASIS Open | oasis-open.org | Other opportunities | Paid | Moderate | Later | Verified live | Join only to contribute substantively to relevant security or privacy technical committees and use approved organization metadata. | Reconfirm current dues before purchase; membership is not endorsement and lower tiers may not include a linked logo. | 2026-08-05 official OASIS join and members pages | Open OASIS Open submit page (new tab)OASIS Open details |
| 96 | 36 | Open Source Initiative | opensource.org | Other opportunities | Paid | Moderate | Later | Verified live | After releasing meaningful OSI-licensed code, consider sponsorship only when supporting OSI aligns with your tool strategy. | Financial sponsorship is not certification, governance influence or product endorsement; do not pay solely for a backlink. | 2026-08-05 official OSI benefits and sponsorship document | Open Open Source Initiative submit page (new tab)Open Source Initiative details |
| 97 | 36 | Stan Store | stan.store | Other opportunities | Paid | Moderate | Later | Live, conditional | Use only if your tool has a genuine creator offer, guide or service; complete the storefront and connect relevant site pages. | Paid commercial fit required; do not open an empty store solely for a backlink. | 2026-08-04 | Open Stan Store submit page (new tab)Stan 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.