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

Inspect every HTTP request your browser makes. Capture, replay, build, and debug APIs. No account. No tracking.

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.