Hoppscotch
FreeLightweight open-source API testing tool in the browser — Postman alternative
📮API ToolsAbout Hoppscotch
Hoppscotch (formerly Postwoman) is a browser-based, open-source API testing tool that needs no installation. It works in any browser and supports REST, GraphQL, WebSocket, and MQTT. The interface is clean and minimal. The self-hosted option gives organizations full data control. Compare to Postman (more mature, cloud-dependent), Bruno (offline-first). Best for: developers who need quick API testing without downloading anything and teams wanting a self-hosted API tool.
What's Great
- ✓Runs entirely in browser — zero installation
- ✓Open source and self-hostable
- ✓Supports REST, GraphQL, WebSocket, and MQTT
- ✓Clean, modern interface
Watch Out For
- !Browser limitations for some use cases
- !Less powerful than Postman for complex workflows
Common Use Cases
A developer tests an API on a shared company computer without installing software
A company self-hosts Hoppscotch for a fully internal API testing portal
Best For
Pricing Model
Free
100% free to use — no credit card required.
Category
API Tools
API development, testing, documentation, and management platforms.
Tags
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