Narrate a demo while the app's own sounds play.
Screen Recorder
Screen Recorder With Audio
Record your screen with your voice and the sound playing on screen, mixed into one video.
Mic and screen sound are mixed live in your browser, so there is no separate audio track to line up afterwards.
For screen audio, tick Share audio in the picker (Chrome and Edge). A 3-second countdown gives you time to switch windows.
Recorded in your browser. Nothing is uploaded, and there is no watermark.
Free, no signup, no watermark. Works in Chrome, Edge, Firefox, and Safari on a computer.
Why it helps
Why record screen audio here
Capture a video or call's audio along with your commentary.
One file with both sources, ready to share.
How to use it
How to record your screen with audio
1 Leave Microphone and Screen audio switched on.
2 Press Choose what to record. In the picker, tick Share tab audio or Share system audio.
3 Talk and click through as normal, then press Stop and download.
Quick tips
Audio recording tips
Wear headphones so your mic does not pick up the screen sound twice.
On a Mac, sharing a browser tab is the most reliable way to capture its sound.
Record a few seconds first and play it back to check both sources.
FAQ
Screen audio questions
Why is there no sound from my screen?
The Share audio box in the picker was not ticked, or the browser cannot capture it. Chrome and Edge always share a tab's sound, and whole-system sound where the operating system allows it (such as Windows); Firefox and Safari do not share screen sound.
Can I record only my voice?
Yes. Turn off Screen audio and leave Microphone on.
Can I record only the screen sound, without my voice?
Yes. Turn off Microphone and leave Screen audio on.
Open the main Screen Recorder page
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