Advanced REST Client
API testing tool
Advanced REST Client is an Electron‑based application for testing HTTP APIs. It lets users construct and send requests, view responses, and manage collections of endpoints, supporting typical REST operations such as GET, POST, PUT, and DELETE. The tool runs on macOS and is distributed as a downloadable installer, with separate packages for Windows and Linux.
The software targets developers, QA engineers, and anyone who needs to interact with web services during development or debugging. Documentation is hosted at docs.advancedrestclient.com, and the project follows an open development model, allowing contributors to suggest features, report issues, and submit code through the public repository.
What distinguishes this client is its focus on open‑web principles and transparent project planning, with a publicly visible roadmap and architectural guides for contributors. The stable release is packaged as a native desktop app, providing a graphical interface for API exploration without requiring a browser extension.
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