Postman→5 open-source options

Open-source Postman alternatives

API client, collections, and collaboration workspace. Below are curated open-source options listed on OpenElse, with notes on when each is a better fit.

Official site: www.postman.com

Hoppscotch

Open-source API development ecosystem for HTTP and more.

Self-hostable

Bruno

Git-friendly API client that stores collections as files.

Hosted only

Yaak

Desktop API client focused on offline use and import compatibility.

Hosted only

HTTPie

Human-friendly HTTP client for the terminal and desktop.

Hosted only

Restfox

Offline-first web and desktop API client.

Self-host optional