Postman is bloated and wants your data in their cloud. Hoppscotch is a blazing-fast, open-source API development platform — works in the browser, no account required.
What Is Hoppscotch?
Hoppscotch is an open-source API development ecosystem. Test REST, GraphQL, WebSocket, SSE, Socket.IO, and MQTT APIs — entirely in your browser or self-hosted.
Use Instantly
Visit hoppscotch.io — no login, no download. Start testing APIs immediately.
Key Features
REST API Testing
- Request methods: GET, POST, PUT, PATCH, DELETE, HEAD, OPTIONS
- Headers, query params, request body (JSON, form-data, raw)
- Authentication: Bearer, Basic, OAuth 2.0, API Key
- Environment variables and collections
- Response viewer with syntax highlighting
- History and collection management
GraphQL
- Schema introspection
- Auto-complete for queries and mutations
- Variables panel
- Subscription support
Real-Time APIs
- WebSocket — connect, send/receive messages
- SSE — Server-Sent Events monitoring
- Socket.IO — event-based communication
- MQTT — IoT message broker testing
Team Collaboration
- Shared collections
- Team workspaces
- Environment management
Self-Host
docker run -p 3000:3000 hoppscotch/hoppscotch
CLI
npx @hoppscotch/cli run collection.json \
--env environment.json
Integrate API tests into CI/CD pipelines.
Why Hoppscotch
| Feature | Hoppscotch | Postman | Insomnia |
|---|---|---|---|
| Cost | Free | Freemium | Freemium |
| Open source | Yes | No | Yes (limited) |
| Browser-based | Yes | Desktop + web | Desktop |
| Account needed | No | Yes | Yes |
| GraphQL | Yes | Yes | Yes |
| WebSocket | Yes | Yes | Yes |
| Self-hosted | Yes | No | No |
| Speed | Instant | Slow startup | Moderate |
Get Started
- Use now — no signup
- GitHub — 66K+ stars
- Documentation
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