Web Traffic Inspector is a Linux alternative to Charles Proxy. It runs a real local recording proxy (default 127.0.0.1:8889) and shows every request that passes through it.

FEATURES:

• Structure view: a tree grouped by host and URL path with request counts, bytes, average duration and error counts, plus a sequence list and full request/response details (headers, decoded bodies, timings).
• Bandwidth throttling: real token-bucket rate limiting of download and upload bytes plus added latency, applied to proxied HTTP traffic and to HTTPS CONNECT tunnels. Presets (56k, DSL, 3G, 4G) or custom values, with a live graph of the measured throughput.
• Map Local: answer matching URLs with a local file or folder.
• Map Remote: redirect matching requests (or tunnels) to another host/port.
• Repeat: send a request N times (optionally concurrently) and get min / avg / median / p95 / max / standard deviation, requests per second and a status histogram.
• Export sessions to CSV and HAR 1.2; export repeat results to CSV.
• HTTPS is tunnelled (host and byte counts only) unless you enable SSL proxying, which uses a local CA generated with the openssl binary and only works in clients where you import and trust that CA. HTTP/1.1 only.

Configure your browser or set http_proxy / https_proxy to the proxy address; the app does not change system proxy settings. Responses are buffered before forwarding; WebSocket upgrades are not supported.

A Linux alternative to Charles Proxy. Not affiliated with or endorsed by XK72 Ltd.

Support development: https://buymeacoffee.com/thanhnv128b