Open Source Startups

Spec sheet

Purpose

Open Source Startups is a curated directory for discovering open-source startups and alternatives to popular tools.Read 8 Oct 2026 · opensourcestartups.com

Maker

The site identifies Tiny Startup Studio as its builder and Jaisal as its maker.Read 8 Oct 2026 · opensourcestartups.com

API directory

The site also lists 1,580 free public APIs across 52 categories, with filters for authentication, CORS, and HTTPS support.Read 8 Oct 2026 · opensourcestartups.com

API integrations

API listings identify authentication methods and whether HTTPS and CORS are supported where that information is available.Read 8 Oct 2026 · opensourcestartups.com

Business model

The site's welcome article says it is free forever and has no paid placements.Read 8 Oct 2026 · opensourcestartups.com

Categories

The directory covers 12 categories, including AI & ML, developer tools, databases, DevOps, and auth & security.Read 8 Oct 2026 · opensourcestartups.com

Collections

The site groups open source alternatives into themed collections and says it includes 16 collections and 334 alternative guides.Read 8 Oct 2026 · opensourcestartups.com

Coverage

The homepage lists 856 projects across 12 categories and describes them as 100% open source.Read 8 Oct 2026 · opensourcestartups.com

Directory size

The homepage lists 856 curated projects across 12 categories.Read 8 Oct 2026 · opensourcestartups.com

Editorial curation

The homepage describes featured projects as hand-vetted editor's picks and says the directory is rated and reviewed by developers.Read 8 Oct 2026 · opensourcestartups.com

Featured projects

The site presents editor’s picks described as hand-vetted.Read 8 Oct 2026 · opensourcestartups.com

Intended audience

The site describes the directory as curated by developers for developers.Read 8 Oct 2026 · opensourcestartups.com

Project data

Project listings include GitHub stars, forks, language, license, and topics, which the site says are kept fresh through automatic GitHub syncing.Read 8 Oct 2026 · opensourcestartups.com

Project submission

Makers can paste a GitHub repository URL to autofill project details when submitting a listing.Read 8 Oct 2026 · opensourcestartups.com

Project submissions

People can submit a project by providing a GitHub repository URL, which the form says can auto-fill project details.Read 8 Oct 2026 · opensourcestartups.com

Public APIs

The homepage offers a directory of 1,580 free public APIs across 52 categories, filterable by authentication, CORS, and HTTPS support.Read 8 Oct 2026 · opensourcestartups.com

Search

The directory supports searching project descriptions and finding projects by language, category, or popularity.Read 8 Oct 2026 · opensourcestartups.com

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.Read 8 Oct 2026 · opensourcestartups.com

Submission privacy

The submission form says the submitter’s email is used to manage the submission and will not be displayed publicly.Read 8 Oct 2026 · opensourcestartups.com

Who it is for

The welcome article says the site is for people concerned that open-source projects they depend on may change licenses, become archived, or stop releasing updates.Read 8 Oct 2026 · opensourcestartups.com

Where Specifiction places it

• Startup Databases#22 of 266.9