Online screen recorder

What you can record

When you press record, the browser asks what to share: the entire screen, one window, or one browser tab. Sharing a single window or tab keeps notifications and other apps out of the recording. Voice only records the microphone without any picture, for voice notes and narration.

Screen recording from a web page works on computers in Chrome, Edge, Firefox and Safari. Phones and tablets generally do not allow a web page to capture their screen; use the recorder built into the phone there, and the microphone recording here still works.

Getting the sound right

• Tab or system audio records what you hear. In Chrome and Edge it is only included when you tick Share audio in the browser's sharing prompt; sharing a tab gives the tab's sound, sharing the entire screen can include system sound, depending on the system.
• Microphone adds your voice. Choose the microphone in the list if you have more than one, and use a headset to keep the speakers out of it.

Both can be on at once, for a tutorial with narration over the sound of the app.

Quality and file size

The quality setting is the bitrate the browser's encoder aims for, so it sets the size of a busy recording:

30 frames per second suits most tutorials and presentations. Choose 60 for games and fast scrolling, with High or Very high quality so the extra frames get enough data; 15 is enough for slides. To send a recording where size is limited, use compress video afterwards: screen recordings shrink very well, since most of the screen stays still.

WebM, MP4 and seekable files

Browsers record WebM natively, and every browser plays it. MP4 opens in more editing programs and on more devices; it is used where the browser can record it directly, and otherwise the recording falls back to WebM. A recording made by the browser does not know its own length while it is being written, so players cannot jump around in it. Make it seekable, on by default, rewrites the file when you stop so it shows its length and can be scrubbed. To change the format later, use the video converter.

Privacy

The recording is made and kept in this tab, and nothing is sent anywhere. Recordings stay listed until you download them or close the tab, so download what you want to keep. Before recording the entire screen, close messages, email and anything private, or share a single window instead.

If something goes wrong

• There is no sound from the computer. Share audio was not ticked in the prompt, or the browser cannot share system sound on this system. Share a tab with its audio instead.
• It says the browser did not allow it. Screen and microphone each need your permission, and system settings can block them. On macOS, allow screen recording for the browser in System Settings, Privacy and Security.
• It says no microphone was found. Connect one, or check that it is not disabled in the system settings.