Top Open Source Projects Built With OpenAPI in 2026
A curated collection of the 202 best free and open-source projects built using OpenAPI. Discover popular repositories, architecture patterns, and trending software in 2026.
Zulip
Organized team chat for distributed teams
Stars25,775Last commit11d agoLicenseApache-2.0Ziit
Track coding time and productivity metrics
Stars250Last commit15d agoLicenseAGPL-3.0
xyd
Open source framework for building beautiful docs
Stars113Last commit12d agoLicenseMIT
Yaak
Local-first API client for HTTP, GraphQL, gRPC, and more
Stars19,117Last commit12d agoLicenseMIT
Worklenz
Free and open source project management tool
Stars3,151Last commit13d agoLicenseAGPL-3.0Vvveb CMS
Open source drag-and-drop CMS and eCommerce builder
Stars1,176Last commit1mo agoLicenseAGPL-3.0
Comp AI
Automate SOC 2, ISO 27001, HIPAA & GDPR compliance
Stars1,899Last commit28d agoLicenseAGPL-3.0Chroma
Open-source search infrastructure for AI
Stars29,157Last commit11d agoLicenseApache-2.0
Usertour
Open-source user onboarding platform
Stars2,292Last commit10d agoLicenseOpen SourceUnKey
Unified API platform for deployment and observability
Stars5,423Last commit11d agoLicenseOpen Source
Storyden
Self-hosted community forum platform
Stars332Last commit14d agoLicenseMPL-2.0
Stormkit
Self-hosted Vercel and Netlify alternative
Stars255Last commit10d agoLicenseOpen SourceOpenlane
Open-source compliance automation platform
Stars296Last commit12d agoLicenseApache-2.0
SolidTime
Open source time tracker for teams
Stars8,883Last commit11d agoLicenseAGPL-3.0
Skyvern
AI-powered browser automation for any website
Stars22,857Last commit12d agoLicenseAGPL-3.0
