A cross-platform web debugging tool built on Node.js for capturing, inspecting, and modifying HTTP, HTTPS, and WebSocket traffic. It utilizes a rule-based system similar to hosts files for advanced request manipulation and mocking.
Tech Stack
JavaScriptTesting & QA
Why whistle?
• Extensive plugin ecosystem
• Lightweight Node.js architecture
• Powerful pattern matching rules
Limitations
• Web UI lacks native feel
• Requires Node.js runtime
• Certificate installation required for HTTPS
3/5/2026
Last Update
1,151
Forks
76
Issues
MIT
License
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