Big NewsSignal for VS Code is now available →Developer-First Console

Every bug. Full context. AI-ready. Stays on your machine.

The ultimate browser extension for session replays, deep context capture, and flawless QA - without the cloud.

videocam

Session Replay

Record user flows with zero performance overhead. Control playback and inspect DOM states.

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Deep Debugging Context

Capture HAR logs, network traces, console errors, and local storage snapshots automatically.

GET /api/v1/user 200 (14ms)Uncaught Error: Invalid stateLocalStorage.get('theme') → 'dark'

draw

Advanced UI Reporting

Full-page screenshots, widget hiding, and live annotations for instant bug classification.

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AI Agent Handoff

Export structured JSON debug data optimized for LLM consumption and automated fixes.

{ "context": "react_v18", "frames": [...] }

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Isolated Sandbox

Inspect the actual HTML state of your application in a secure sandbox environment.

<div id="app" data-v-app>

<button class="btn">Click</button>

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Source Map Resolution

Resolve minified stack traces back to your original source code directly in the browser.

main.js:1:20394→ App.tsx:42:12

Secure by design. Not by policy.

Signal is built on a local-first architecture - there is no cloud. Every captured context stays on your machine. You can redact sensitive data in-place, review everything before sharing, and choose exactly how and where your debug context gets delivered. You're always in control.

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Local Storage

All session data is kept in your local browser sandbox.

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Auto-Masking

PII is redacted at the capture level, before storage.

lockNo Cloud Required

Start Debugging Smarter.

Join developers who prioritize both visibility and privacy.