In-Browser Screen & Audio Recorder

No. Absolute privacy is architecturally guaranteed. All video frame capture, microphone audio mixing, and WebM container encoding take place exclusively inside your local browser memory (RAM). When you click 'Download Video', the browser saves the file directly from your local memory onto your hard drive. Zero bytes of video data are ever sent over the network to any remote server.

On macOS (Catalina and later), Apple requires explicit system permission for browsers to capture screen content. If your screen appears black or recording fails, open System Settings (or System Preferences) > Privacy & Security > Screen Recording, and ensure that your web browser (Google Chrome, Brave, Firefox, or Microsoft Edge) is checked. You may need to restart the browser for the permission to take effect.

Yes. When you click 'Start Recording', your browser will present a native operating system dialog displaying three capture options: 'Entire Screen', 'Window' (recording only a specific open app like VS Code, Excel, or PowerPoint), or 'Chrome/Browser Tab' (which provides the smoothest capture and supports system tab audio sharing).

Recordings are saved in the modern WebM container format (.webm) encoded with the open VP9/VP8 video codec and Opus audio codec. WebM is natively supported across all modern web browsers, VLC Media Player, QuickTime (with components), and video editing suites like Adobe Premiere Pro and DaVinci Resolve. If you require an MP4 file, you can convert it using free tools like HandBrake, FFmpeg ('ffmpeg -i input.webm -c:v libx264 output.mp4'), or any video converter.

Yes. Toggle the 'Include Microphone Narration' switch before starting your session. The tool will capture system audio from your browser tab or desktop while simultaneously streaming your voice from your microphone, mixing them together using the browser's native Web Audio API.

The W3C 'getDisplayMedia' API is currently supported on desktop browsers including Google Chrome, Microsoft Edge, Mozilla Firefox, Opera, and Safari on macOS. Mobile operating systems (iOS and Android) intentionally restrict web pages from capturing full device screens via web browsers for security reasons; mobile users should use built-in OS screen recording shortcuts.

Engineering and QA teams frequently use this tool to capture reproducible steps for software bugs. Instead of writing long textual bug reports, testers record a 30-second walkthrough demonstrating the bug in action, download the WebM file, and drag-and-drop it directly into Jira tickets, GitHub Issues, or Slack channels.