network-debugging

Free, open-source HTTP, HTTPS and WebSocket debugging proxy for Windows and macOS. Rust core + Electron UI. Alternative to Charles, Proxyman and Fiddler.

A tiny Cloudflare Snippet that echoes your IP, geo, ASN, edge location, TLS, RTT, language, and user agent as JSON or plain text.

Wirepane: an HTTPS debugging proxy inside Claude Code (Proxyman/Charles alternative). Intercepts and decrypts traffic from your browser, iOS Simulator, iPhone and Android, lists and filters every request, and lets Claude read them.

A modern Fiddler Classic alternative for macOS. A Fiddler clone for Mac: capture and inspect HTTP/HTTPS traffic, and replay HAR files with an AutoResponder.

Open-source network troubleshooting and diagnostics for intermittent connectivity, DNS, IPv4/IPv6, VPN, TLS and path failures. Capture, isolate and preserve network evidence locally.

Local-first HAR analyzer for request waterfalls, regressions, and privacy-aware exports.

Inspect HAR files locally, triage network issues, and export a reviewed sharing pack with sanitized HAR, issue draft, and audit.

Chrome DevTools extension for capturing and temporarily patching fetch/XHR JSON requests