API Debugger - Capture & Debug HTTP Requests, Replay & Test

Inspect every HTTP request your browser makes. Capture, replay, build, and debug APIs with full privacy. ━━━ WHAT YOU GET ━━━ 🔍 AUTO-CAPTURE Every HTTP request your browser makes, captured automatically. No setup, no configuration. Just browse and everything shows up. 🔨 REQUEST BUILDER • REST, WebSocket, GraphQL, SSE, Socket.IO • Headers, query params, body (JSON, form, raw) • Bearer tokens, Basic auth, API keys, OAuth 2.0 • Pre-request scripts (Postman-compatible) • Code generation: cURL, fetch, Python, Go, Java, PHP, Rust 📦 ORGANIZE • Collections to group related requests • Environment variables with {{variable}} syntax • Collection runner for batch execution • Variable extraction from responses 📥 IMPORT / 📤 EXPORT • Import: Postman, Insomnia, OpenAPI, HAR, cURL • Export: Postman, OpenAPI, cURL • No lock-in, take your data anywhere 🤖 AI FEATURES (OPTIONAL) • Bring YOUR OWN API key • Uses OpenRouter - access 300+ models • Default model is FREE • Your keys NEVER touch our servers ━━━ PRIVACY ━━━ 🔒 NO ACCOUNT REQUIRED Just install and go. No email, no signup, no "verify your email to continue." 🔒 NO TRACKING Zero analytics. Zero telemetry. Zero crash reports. We don't see anything. 🔒 YOUR DATA STAYS YOURS All data stored locally in your browser. Nothing on our servers. 🔒 AI KEYS STAY PRIVATE Your API key goes DIRECTLY to your AI provider. We never see it. 🔒 GITHUB SYNC = YOUR TOKEN GitHub backup uses YOUR personal access token stored in YOUR browser. We never see it. ━━━ THE FRUSTRATION THIS SOLVES ━━━ I was debugging an API at 11pm. Postman wanted to verify my email. Again. So I built a Chrome extension that captures every request my browser makes. No account. No login. No "sorry, free tier requires email verification." It's just a Chrome extension. Open it. Done.