All alternatives

Open source alternatives to Postman

Compare open source projects that can replace or complement this product.

3 projects
hoppscotch icon

hoppscotch

Open

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

15/05/2026
5,871
79,184
bruno icon

bruno

Open

Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)

15/05/2026
2,403
43,816
insomnia icon

insomnia

Open

The open-source, cross-platform API client for GraphQL, REST, WebSockets, SSE and gRPC. With Cloud, Local and Git storage.

15/05/2026
2,285
38,407