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Open Source Startups

On the record

API directory
The site also lists 1,580 free public APIs across 52 categories, with filters for authentication, CORS, and HTTPS support.opensourcestartups.com · read 8 Oct 2026
API integrations
API listings identify authentication methods and whether HTTPS and CORS are supported where that information is available.opensourcestartups.com · read 8 Oct 2026
Business model
The site's welcome article says it is free forever and has no paid placements.opensourcestartups.com · read 8 Oct 2026
Categories
The directory covers 12 categories, including AI & ML, developer tools, databases, DevOps, and auth & security.opensourcestartups.com · read 8 Oct 2026
Collections
The site groups open source alternatives into themed collections and says it includes 16 collections and 334 alternative guides.opensourcestartups.com · read 8 Oct 2026
Coverage
The homepage lists 856 projects across 12 categories and describes them as 100% open source.opensourcestartups.com · read 8 Oct 2026
Directory size
The homepage lists 856 curated projects across 12 categories.opensourcestartups.com · read 8 Oct 2026
Editorial curation
The homepage describes featured projects as hand-vetted editor's picks and says the directory is rated and reviewed by developers.opensourcestartups.com · read 8 Oct 2026
Featured projects
The site presents editor’s picks described as hand-vetted.opensourcestartups.com · read 8 Oct 2026
Intended audience
The site describes the directory as curated by developers for developers.opensourcestartups.com · read 8 Oct 2026
Maker
The site identifies Tiny Startup Studio as its builder and Jaisal as its maker.opensourcestartups.com · read 8 Oct 2026
Project data
Project listings include GitHub stars, forks, language, license, and topics, which the site says are kept fresh through automatic GitHub syncing.opensourcestartups.com · read 8 Oct 2026
Project submission
Makers can paste a GitHub repository URL to autofill project details when submitting a listing.opensourcestartups.com · read 8 Oct 2026
Project submissions
People can submit a project by providing a GitHub repository URL, which the form says can auto-fill project details.opensourcestartups.com · read 8 Oct 2026
Public APIs
The homepage offers a directory of 1,580 free public APIs across 52 categories, filterable by authentication, CORS, and HTTPS support.opensourcestartups.com · read 8 Oct 2026
Purpose
Open Source Startups is a curated directory for discovering open-source startups and alternatives to popular tools.opensourcestartups.com · read 8 Oct 2026
Search
The directory supports searching project descriptions and finding projects by language, category, or popularity.opensourcestartups.com · read 8 Oct 2026
Submission information
The submission form asks for a project name, tagline, category, submitter name, and email; it says the email is used to manage the submission and is not displayed publicly.opensourcestartups.com · read 8 Oct 2026

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