About this tool
About Internal Audio Recorder
Record sound playing in a browser tab without producing a screen video. The zer.ai Internal Audio Recorder keeps only the shared audio track, gives you pause and resume controls, and lets you download the finished recording as MP3, WAV or the browser's original audio format.
Record tab audio without recording video
Browser sharing permission normally asks you to select a tab, window or screen. That selection is required so the browser can safely grant access to its audio, but the resulting zer.ai recording contains audio only. The visible track is used to maintain the authorized sharing session and is never added to the recorded file.
This is useful when you need the sound from a webinar, a browser-based meeting you are permitted to record, your own online presentation, a pronunciation example, a web music project or another source where a screen recording would create an unnecessarily large file.
How to record internal audio in Chrome or Edge
- Open the browser tab that will play the audio.
- Return to this page and click Choose audio source and record.
- In the browser dialog, select the source tab and enable Share tab audio.
- Start playback in the source tab. Pause and resume the recorder when needed.
- Stop recording, listen to the result and download it in your preferred format.
Chrome and Edge generally provide the most reliable tab-audio capture. Browser and operating-system restrictions determine whether an entire screen or application window can expose system audio. If zer.ai detects no audio track, it stops immediately and explains how to select a compatible source.
MP3, WAV and fast original downloads
Choose MP3 for a smaller file that is easy to share and play. Choose WAV when you want an uncompressed file for editing. Choose Original to download the browser's native recording—usually WebM with Opus audio—without waiting for conversion. MP3 and WAV conversion uses the same local FFmpeg audio engine as the other zer.ai audio tools.
If you are deciding between a working copy and a delivery file, compare MP3 versus WAV for file size, editing and sharing. Exporting an already compressed browser recording as WAV does not recover detail lost during the original capture. Keep the original download before making further edits or conversions.
Edit a browser recording after downloading
Use the Audio Cutter to remove an unwanted section, or the Audio Mixer to place a permitted recording alongside narration and background music. Download the recording first: these tools do not automatically transfer the temporary recording from this page.
Private browser-based audio capture
The recording remains on your device. zer.ai does not upload the shared sound or keep a server copy. The temporary result exists only on the current page, so download it before closing or refreshing the tab. Always make sure you have permission to record and reuse audio from meetings, streams, courses or other protected sources.