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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.
Submit your -related astronomy utility only after it has been used in research submitted to or published by a refereed journal.
Create your truthful /founder profile or content page and add the website link where allowed.
Open-source a relevant geoscience model or component, complete the model questionnaire, and provide its code archive for CSDMS testing.
Create your truthful /founder profile or content page and add the website link where allowed.
Organize a rigorous life-science privacy-tool benchmark or participate with your eligible method and publish validated results.
Submit a mature scientific Python package related to your privacy or accessibility workflow for public review and listing.
If your tool produces a research-grade R package, submit a presubmission inquiry and the package for open review.
Build a real ROS package for your robotics/privacy/safety workflow, release it through rosdistro and expose maintained README, documentation and source links in ROS Index.
Pitch/list company/tool if category fits.
Submit your tool as web app/tool collection.
Register an actual neuroimaging privacy, quality-control, or data-processing tool through NITRC's resource workflow.
Submit your tool as remote/productivity tool if form active.
Submit your tool/SaaS-style landing page.
Submit your open-source accessibility, education or digital-security component for foundation review.
Submit/request inclusion if UI is strong.
Submit your tool for manual inclusion in the software directory.
Use only if outsourcing manual directory submissions.
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.