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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 | 86 | CoFoundersLab | cofounderslab.com | Startup directories | Free | Quick | High | Verified live | Create a complete founder and startup profile for your tool and participate in relevant founder discussions or connection requests. | Use a real founder identity, contribute context before mentioning AltFTool, and never send unsolicited promotional messages. | Official CoFoundersLab signup and community path checked 2026-08-07 | Open CoFoundersLab submit page (new tab)CoFoundersLab details |
| 2 | 86 | Indie Hackers | indiehackers.com | Startup directories | Free | Quick | High | Not submitted | Add product and post build-in-public story with honest numbers. | Avoid link-drop; founder story performs better. | 2026-07-30 | Open Indie Hackers submit page (new tab)Indie Hackers details |
| 3 | 86 | Indie Page | indiepa.ge | Startup directories | Free | Quick | High | Not submitted | Build a complete founder profile, add your tool as a shipped startup, and keep milestones, revenue visibility, and product details truthful. | Public publishing is paid; use a real founder identity and accurate startup data rather than a backlink-only profile. | 2026-08-03 | Open Indie Page submit page (new tab)Indie Page details |
| 4 | 86 | Keybase | keybase.io | Startup directories | Free | Quick | High | Not submitted | Create the founder Keybase profile and cryptographically prove control of your tool so the public identity record links the verified domain. | The founder must control the website or DNS proof and keep account keys secure; this verifies identity rather than acting as a marketing listing. | 2026-08-03 | Open Keybase submit page (new tab)Keybase details |
| 5 | 86 | Needle Directory | useneedle.net | Startup directories | Free | Quick | High | Verified live | Sign in and submit an accurate your tool product profile for review. | Verified startups and tools only; community upvotes must remain organic. | 2026-08-05 | Open Needle Directory submit page (new tab)Needle Directory details |
| 6 | 86 | Startup Grind | startupgrind.com | Startup directories | Free | Quick | High | Verified live | Join a relevant chapter, complete the founder profile, attend suitable events, and share your tool only in genuine networking context. | Choose a relevant chapter or event and follow organizer rules; member access is not a broadcast or mass-messaging channel. | Official Startup Grind chapter community path checked 2026-08-07 | Open Startup Grind submit page (new tab)Startup Grind details |
| 7 | 86 | StartuPage | startupa.ge | Startup directories | Free | Quick | High | Verified live | Create an authentic founder profile, add your tool as a startup page and include verified website/social links. | Use truthful traction data; do not fabricate revenue or create duplicate identities. | 2026-08-03 | Open StartuPage submit page (new tab)StartuPage details |
| 8 | 86 | The Org | theorg.com | Startup directories | Free | Quick | High | Verified live | Add your tool’s real company, founder, and team structure with website and role details to create a trustworthy organization profile. | Use verified work details and obtain team consent before publishing names or roles; do not fabricate an org chart. | https://theorg.com/iterate/how-to-make-an-org-chart | Open The Org submit page (new tab)The Org details |
| 9 | 86 | UN SDG Actions Platform | sdgs.un.org | Startup directories | Free | Quick | High | Verified live | Register a concrete ongoing your tool initiative with measurable milestones, dates, resources, SDG targets, partners and website evidence. | Action must be specific, measurable, achievable, resource-based, time-bound and ongoing; not a proposal, completed activity or organization profile. | 2026-08-05 — https://sdgs.un.org/partnerships/acceleration-actions/register | Open UN SDG Actions Platform submit page (new tab)UN SDG Actions Platform details |
| 10 | 84 | Startup India | startupindia.gov.in | Startup directories | Free | Moderate | High | Verified live | Apply only if the legal entity behind your tool meets DPIIT eligibility, innovation, age, and turnover conditions. | This is entity validation rather than a guaranteed public backlink; incorporation and eligibility evidence are mandatory. | https://www.startupindia.gov.in/content/sih/en/startupgov/startup_recognition_page.html | Open Startup India submit page (new tab)Startup India details |
| 11 | 84 | Startup Tracker | startuptracker.io | Startup directories | Free | Moderate | High | Not submitted | Create or claim your tool company profile and add its official URL, product summary, founders, location, and verified company facts. | Company data is crowdsourced and reviewed; provide complete, verifiable facts and avoid exaggerated claims. | 2026-08-03 | Open Startup Tracker submit page (new tab)Startup Tracker details |
| 12 | 83 | Contra | contra.com | Startup directories | Free + paid tier | Quick | High | Not submitted | Create the founder or studio portfolio and publish your tool as a detailed product case study with the live project link. | Use a real professional identity and show genuine work, process, and outcomes; do not create a shell profile only for a backlink. | 2026-08-03 | Open Contra submit page (new tab)Contra details |
| 13 | 83 | Crunchbase | crunchbase.com | Startup directories | Free + paid tier | Quick | High | Not submitted | Create/claim company profile linking your tool/Anslation. | High authority entity/profile; company details needed. | 2026-07-30 | Open Crunchbase submit page (new tab)Crunchbase details |
| 14 | 83 | Startup Stash | startupstash.com | Startup directories | Free + paid tier | Quick | High | Not submitted | List your tool as productivity/developer/startup resource. | Selective curation; make category fit clear. | 2026-07-30 | Open Startup Stash submit page (new tab)Startup Stash details |
| 15 | 81 | Harmonic | harmonic.ai | Startup directories | Free + paid tier | Moderate | High | Verified live | Submit accurate company, founder and product details so your tool can be evaluated for Harmonic's startup database. | Submission does not guarantee inclusion or how Harmonic displays the data; use a work email and verifiable company information. | 2026-08-03 • https://harmonic.ai/get-discovered | Open Harmonic submit page (new tab)Harmonic details |
| 16 | 81 | Startup Inspire | startupinspire.com | Startup directories | Free | Involved | High | Needs checking | 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/startup-inspire | Open Startup Inspire submit page (new tab)Startup Inspire details |
| 17 | 77 | Startupper.Tools | startupper.tools | Startup directories | Not stated | Involved | High | Verified live | Submit your tool with a domain-matching email and accurate startup-use case. | Paid editorial submission; active, well-designed startup tool required. | 2026-08-05 | Open Startupper.Tools submit page (new tab)Startupper.Tools details |
| 18 | 74 | The Carpentries Incubator | carpentries.org | Startup directories | Paid | Moderate | High | Verified live | Create a substantive privacy, security, or accessibility lesson using your tool exercises and propose it through the Incubator. | Lesson must be openly licensed, educational, maintainable, and non-promotional; Incubator status is not Carpentries endorsement. | Official community-lessons and lesson-developer guides checked 2026-08-05 | Open The Carpentries Incubator submit page (new tab)The Carpentries Incubator 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.