The open-source API development ecosystem
The lightning-fast open alternative to Postman: web, CLI and self-hosted.
Hoppscotch is the open-source API development platform: a fast web client for building and testing requests, collections and environments, WebSocket, SSE and GraphQL support, a self-hostable backend for teams, and a CLI and CI integration built on the same collections.
Why founders use it: it is the Postman-shaped tool without the heavy client or the account gravity, a browser tab away, self-hostable when API traffic should stay inside the perimeter, and free at every tier of solo use. The request builder covers the modern surface, REST plus realtime plus GraphQL, and collections export cleanly, which keeps the artifact portable.
A realistic setup: a workspace per product, collections mirroring the API's resources, environments for local, staging and production secrets, request tests asserting contract invariants, and the CLI running those collections in CI as smoke tests after deploys.
Trade-offs: the desktop-app polish and team features of the incumbents arrive later here, extension depth is smaller, and the self-hosted route wants a container you run. Compare with Postman for the full platform, Bruno for the file-based local-first take, and Insomnia for the middle ground.
Who it's for
Developers who want an open-source, web-based API testing client that feels like Postman.
Official links
Keep exploring
Concepts in the glossary
3 in catalog
Hoppscotch features
1 in catalog
Hoppscotch is written in
1 in catalog
Hoppscotch has a pricing
1 in catalog
Hoppscotch is an alternative to
1 in catalog