Open source
Hoppscotch
An in-browser API client for REST, GraphQL and WebSocket.
What it is
A lightweight open source alternative to Postman that runs entirely in the browser, with nothing to install. It supports REST, GraphQL, WebSocket, SSE and MQTT, with collections, environments and code generation.
Best for
Trying an API without installing a desktop application.
What the free plan includes
- Individual use at no cost
- Cloud sync with a free account
- Self-hostable for teams
Free plans change often. Confirm the limits on the official page before deciding.
