1 Free and Open-source Backend Apps for macOS (Intel and Apple Silicon)

1- Insomnia: API Testing and Designing App

Design, Test, and Develop REST APIs

Insomnia is a free open-source API designing, debugging, and testing app for multiple platforms including macOS.

It has a vast ecosystem that includes 350+ plugins, supports multiple protocols, and works with API file collections.

Read about Insomnia: API Testing and Designing App 's features, license, platforms, and more.