Hoppscotch

Hoppscotch transforms how developers interact with APIs by providing a blazingly fast, intuitive interface for testing and debugging REST, GraphQL, and WebSocket endpoints. Built as a progressive web app using Vue.js and TypeScript, it delivers a seamless experience whether you're working online, offline, or behind a corporate firewall.

Unlike traditional API clients that require hefty downloads and constant updates, Hoppscotch runs directly in your browser while offering full offline capabilities. Need more control? Deploy it on-premises for complete data sovereignty, or use the desktop and CLI versions for integrated workflow automation. The platform supports collections, environments, and team collaboration features that scale from solo developers to enterprise teams.

What sets Hoppscotch apart is its lightweight architecture and developer-first design. With real-time request/response inspection, comprehensive authentication methods (OAuth 2.0, JWT, API keys), and built-in code generation for multiple languages, it eliminates context switching. The open-source nature means you can customize it to your exact needs, integrate it into CI/CD pipelines, and maintain complete visibility into how your API interactions are handled.

Whether you're building microservices, debugging third-party integrations, or documenting APIs for your team, Hoppscotch provides the flexibility to work your way—no vendor lock-in, no data privacy concerns, and no unnecessary complexity.