TxChops — Network Debugger

Core Features

Professional network debugging, all on-device.

🔓

MITM Proxy

Intercept and decrypt HTTPS traffic with a dynamically generated CA certificate. Full HTTP/2 multiplexing and ALPN negotiation.

⏸

Breakpoints

Pause any matching request or response, edit headers and body live, then resume or drop. Perfect for testing edge cases.

🗺

Map Rules

Redirect URLs to different servers, serve local files, or rewrite paths with regex capture groups. Cross-scheme HTTP↔HTTPS supported.

📜

Scripts (QuickJS)

Write JavaScript to modify requests and responses on the fly. Async fetch, timers, and console logging included.

🐌

Throttling

Simulate 3G, LTE, or custom network profiles. Configurable bandwidth, latency, and packet loss per host.

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WebSocket Debugging

Capture and display WS/WSS frames bidirectionally. See every message flowing through your connection.

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Session Recording

SQLite-backed durable session store with search, filter, pagination, and HAR export for sharing.

🌐

System Traffic Capture

macOS: NETransparentProxy captures all apps. iOS: Packet Tunnel VPN for device-wide traffic interception.

🔗

External Proxy

Chain to upstream HTTP or SOCKS5 proxies with per-host pattern matching. Full proxy chain support.

How It Works

Three steps to debug any API.

Install CA Certificate

Trust the generated CA on your device to enable HTTPS decryption.

Start Capture

Enable the system proxy or VPN tunnel. All traffic flows through TxChops.

Inspect & Modify

Browse captured sessions, set breakpoints, apply map rules, or run scripts.

Built for Performance

Native code. Millisecond response. Buttery smooth.

⚡

Native Speed

Pure native code — no Electron, no web view. Instant startup and real-time packet processing without compromise.

🪶

Lightweight

Minimal memory and CPU footprint. Runs quietly in the background without draining your battery.

🔒

Privacy First

All traffic processing happens locally on your device. TxChops does not send your data to any external server. Ever.