yaak open source analysis

The most intuitive desktop API client. Organize and execute REST, GraphQL, WebSockets, Server Sent Events, and gRPC 🦬

Project overview

⭐ 17319 · TypeScript · Last activity on GitHub: 2026-01-05

GitHub: https://github.com/mountain-loop/yaak

Why it matters for engineering teams

Yaak addresses the practical challenge of testing and interacting with multiple API types including REST, GraphQL, WebSockets, Server Sent Events, and gRPC within a single desktop client. This open source tool for engineering teams streamlines API development and debugging, making it particularly useful for backend developers, API engineers, and full-stack teams who need reliable interaction with diverse services. Its maturity and active maintenance make it a production ready solution that can be confidently used in day-to-day workflows. However, teams requiring extensive collaboration features or cloud-based integrations might find it less suitable compared to other specialised tools that focus on those aspects.

When to use this project

Yaak is a strong choice when your team needs a versatile, self hosted option for API interaction across multiple protocols without relying on cloud services. Consider alternatives if your workflow demands advanced collaboration, automated testing pipelines, or a broader ecosystem of integrations.

Team fit and typical use cases

Backend engineers and API developers benefit most from Yaak as they use it to organise and execute requests during development and debugging phases. It fits well in teams building microservices, real-time applications, or complex APIs where multiple communication protocols are involved. This production ready solution is commonly found in software products requiring robust API testing and quick iteration cycles.

Topics and ecosystem

bruno-alternative graphql grpc http http-client insomnia-alternative postman-alternative sse tauri websocket

Activity and freshness

Latest commit on GitHub: 2026-01-05. Activity data is based on repeated RepoPi snapshots of the GitHub repository. It gives a quick, factual view of how alive the project is.