Screen Recorder
Record your screen with optional audio — download as WebM video.
Written by Anil Gautam · Updated
What does the screen recorder capture?
Start recording opens your browser's own share dialog, where you choose a whole screen, a single window or one tab. Sharing a single tab keeps notifications and other windows out of the video. The tool requests 30 frames per second, records with the browser's MediaRecorder interface and holds the video inside the page. Nothing is uploaded at any point. The file exists only in this tab until you click Download WebM, so reloading or closing the tab first loses the recording.
Sound depends on what you share. The Include audio box, ticked by default, asks for the sound of the shared screen or tab; the tool never opens your microphone, so a spoken voice-over is not recorded. In Chrome and Edge, picking a tab gives you a switch to share its audio, and on Windows a whole-screen share can include system audio. A shared window usually has no sound. Untick Include audio before you start if you want a clip with no sound at all.
How do I stop and save a recording?
Click Stop recording, or end the capture with the browser's own stop-sharing control. Either way a player appears under the timer so you can watch the take before saving it. Download WebM names the file recording- followed by a 13-digit number, which is the moment you clicked, counted in milliseconds since 1 January 1970 UTC. A file saved at 05:00 UTC on 7 October 2026 is called recording-1791349200000.webm, and pasting that number into Unix Timestamp Converter turns it back into a date.
The timer shows minutes and seconds only, so a session of one hour and five minutes reads 65:00. Starting a new recording clears the previous preview, so download each take before you record the next.
Why WebM, and what if the file will not open?
The tool asks MediaRecorder for the WebM format, which Chrome, Edge and Firefox can write without extra software. WebM files play in those browsers and in desktop players such as VLC. Some editing apps and phone galleries do not open them, so convert the file to MP4 with a desktop video converter when the destination needs it.
A message saying screen recording isn't supported means the browser does not expose the Display Media API. Phone browsers generally do not let web pages capture the screen, so use a computer. If you cancel the share dialog, nothing starts and the Start recording button is ready again.