Fluxzy Desktop

HTTP and HTTPS debugging proxy for developers, QA, and security folks. Captures HTTP/1.1, HTTP/2, WebSocket, and gRPC traffic, lets you inspect, modify, and replay it.

What sets it apart:

• Offline. No login. No cloud. Free for personal use, one-time license for pro use, no subscription.

• Native PCAP capture with embedded TLS keys, opens straight in Wireshark.

• YAML rule engine shared across desktop, CLI, and Docker. Write once, run anywhere.

• Tauri-based UI, around 200MB install, not a gigabyte Electron app.

• 40+ actions: mock, breakpoint, inject headers, throttle, spoof DNS, replay sessions.

Windows, macOS, Linux. Open source core.