Record your screen, an app window, or a browser tab with optional microphone narration, then save it as a WebM video. No install needed.
This tool records what is on your screen using your browser's built-in screen sharing. When you start, the browser asks whether to capture your whole screen, a single window, or one tab. Turn on the microphone option to mix your voice with any system or tab audio the browser shares, which works well for tutorials, bug reports, and walkthroughs.
The recording is created in your browser and is not uploaded. When you stop, either with the Stop button or the browser's own stop-sharing control, a preview appears and you can download the video as a WebM file. Screen capture depends on browser support and is generally unavailable on phones. Whether system audio is captured depends on your browser and the source you choose.
WebM, using the VP9 codec when your browser supports it. Most modern browsers and media players can play WebM files.
No. The video is assembled in your browser's memory and downloaded directly to your device.
System and tab audio are only captured when your browser offers it for the source you picked, often only for tabs or full-screen sharing. Check the share-audio option in the browser's picker.
Most mobile browsers do not support screen capture, so this tool is intended for desktop browsers.