Inspect, mock and reshape HTTP/S traffic on macOS. Free, public-domain, native — the modern Proxyman alternative, built on mitmproxy.
An extensible web development and debugging tool for coding agents.
Free, open-source Fiddler Classic alternative for Windows. Capture, inspect, filter, replay, compose and mock HTTP/HTTPS traffic with TLS decryption, HTTP/2, HTTP/3 and SAZ support.
Chrome devtools snippet : reveal who changed your DOM
Evidence-first local MCP debugger for React, Vite, Next.js, Chromium, and Safari: reproduce, inspect, replay, and verify web bugs in one bounded workflow.
A debug bridge embedded inside your web app, exposing runtime internals to AI agents via MCP.
HAR-based HTTP provenance analyzer that traces cookies, tokens, headers, and request dependencies with temporal evidence.
Chrome extension to inspect marketing attribution, tracking parameters, cookies, redirects and pixel requests. 100% client-side, no telemetry.
A lightweight in-browser Request Viewer that intercepts and displays fetch/XHR requests in real time. Includes filters, live UI, POST parsing, export to JSON, auto-copy, and a floating DevTools console panel. Just paste it into DevTools and start capturing.
Test Bae – An online website inspection tool for instant, real-time analysis. No data stored; lightweight and fast for developers and curious users.
A privacy-conscious TypeScript toolkit for researching browser network activity, runtime behavior and web application architecture.
Token-efficient browser MCP server: headless Chrome in Docker that captures everything (console / network / IndexedDB / snapshots) and lets the model query on read. 56 tools across full / slim / gateway mount modes.
Capture browser game sessions (console, HAR, WebSocket frames, bundles) and inspect them with Claude chat
A high-performance modular CLI tool to manage, analyze, and test HTTP cookies. Features real-time health tracking, domain grouping, and curl export integration.
Arena de depuração em que equipes corrigem desafios visuais, acessibilidade, formulários e responsividade em rodadas lúdicas.
Offline HAR viewer & secret redactor — open a .har file in your browser to inspect requests, headers, timings and a waterfall, and automatically detect & redact secrets (tokens, cookies, API keys, passwords, cards) before sharing. 100% client-side, nothing uploaded.
HTTP(S) traffic interception with Fiddler Classic - proxy setup, HTTPS decryption, breakpoints, request/response modification and an HTTP header reference
Read every Server-Sent Event your page receives — full payloads, refresh history, in its own tab.
Parse and analyze HTTP Archive (HAR) files via MCP
Autonomous debug agent for web apps. Scans projects, runs user flows, collects runtime evidence, diagnoses bugs, and generates patches.
To associate your repository with the web-debugging topic, visit your repo's landing page and select "manage topics."