Yaak
yaak is an intuitive desktop API client designed for organizing and executing various types of API requests, including REST, GraphQL, WebSockets, Server Sent Events, and gRPC. Its interface prioritizes usability for developers seeking efficient workflows and robust API testing support.
Yaak is built in TypeScript, distributed under the MIT License license, 18.4k GitHub stars, latest release v2026.3.1.
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- Language
- TypeScript
- Latest Release
- v2026.3.1
- License
- MIT License
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Key Features
- User-friendly interface for API testing
- Supports REST, GraphQL, WebSockets, SSE, and gRPC
- Organize requests and collections efficiently
- Designed for desktop use
- Multiple protocol support in one app
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