hoppscotch / hoppscotch

Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia

mountain-loop / yaak

The most intuitive desktop API client. Organize and execute REST, GraphQL, WebSockets, Server Sent Events, and gRPC 🦬

stoplightio / prism

Turn any OpenAPI2/3 and Postman Collection file into an API server with mocking, transformations and validations.

VoidenHQ / voiden

Design, Test and Document APIs in plain Markdown. Compose Requests with API blocks. Reuse, Replace & Version everything just like code. Offline, Truly Git Native, No Lock-in.

apideck-libraries / portman

Port OpenAPI Specs to Postman Collections, inject test suite and run via Newman 👨🏽‍🚀