Screen Recorder

Records your computer screen, one window or one browser tab and saves it as a video file, with no program to install. Use it for how-to videos, online lessons or to capture an error.

How to use

1. Choose the options: "Include system or tab sound", "Include microphone", "Show webcam in a corner", "Resolution", "Quality" and "File format".
2. Press "Start recording" and choose the screen, window or tab in the browser's dialog. For sound, also turn on "Share audio" there.
3. Recording starts after a 3-second countdown and shows the time and file size. Use "Pause" and "Resume" as needed.
4. Press "Stop recording" to see a preview, enter a "File name" and press "Download".

How it works

• It works only in desktop browsers such as Chrome, Edge and Firefox. Phones and tablets get a message instead.
• "Quality" sets the video bitrate: Low about 2.5 Mbps, Standard about 5 Mbps, High about 10 Mbps. File size is roughly bitrate × duration ÷ 8.
• Only the MP4 or WebM formats this browser can record are listed. The video is made on this device and is never uploaded.
• The video is kept in memory while recording, so split recordings longer than 30 minutes.

Questions and answers

How do I record my screen with sound?

Turn on "Include system or tab sound" and, in the sharing dialog, "Share audio". Some browsers and systems allow only tab sound or none.

How large is a 10-minute screen recording?

At "Standard" (about 5 Mbps) it is about 38 MB per minute, or about 380 MB for 10 minutes. It varies with how much the picture moves.

Why does my WebM file not play properly in some players?

Some players cannot show the full length of a WebM file or skip through it. Play it in Chrome or VLC, or record in MP4 if the list offers it.

Can I record my screen on a phone?

No. Phone and tablet browsers do not let web pages record the screen. Use the phone's built-in screen recorder.