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Audio Recorder

DUAL‑SOURCE CAPTURE
System audio or microphone · no extra software
Standby · Ready
CURRENT SOURCE
No audio source selected — click REC and choose to share or allow microphone
⚠ No audio track detected. Make sure to check "Share audio" in the dialog or allow microphone access, then try again.
SIGNAL
Audio source
Scheduled stop
Auto export format
00:00:00
RECORDINGS
0 recordings
No recordings · Press REC and select audio source in the popup
⏵ BEFORE YOU START
system audio Click REC, the browser will ask what to share. You MUST check "Share system audio" at the bottom to capture system sound.
microphone Select "Microphone" source, then recording will request mic access directly – no screen share needed.
Edge/Chrome In the share dialog you can pick "Entire screen", "Window" or "Chrome tab". Check "Share audio" to get system sound.
macOS System audio requires BlackHole virtual driver, then select that device in the share dialog.
Firefox System audio is NOT supported (microphone works). Use Chrome/Edge for full features.

Browser share dialog explained

When you click REC with "System audio" selected, the browser shows this dialog. Correct operation is crucial.

📋 Dialog mockup (Chrome/Edge)
Choose what to share with "the site"
The site will be able to see your screen content
● Chrome Tab
● Window
● Entire screen
Screen 1
Screen 2
✅ Share system audio ← MUST check this!
Share Cancel

Steps:

  1. Choose what to share (select "Entire screen" to capture all system audio).
  2. Check the "Share system audio" box at the bottom (wording may vary).
  3. Click "Share" to start recording.

⚠️ Without that audio checkbox, you'll get no sound or a failed recording.

Frequently Asked Questions

how to record MP3?
Currently, this tool supports exporting to WEBM (original quality) and WAV (lossless). If you need MP3 format, we recommend exporting to WAV first and then using our audio converter tool to convert it. We plan to support direct MP3 export in future versions – stay tuned!
How do I record system audio?
Select "System audio" as source and click REC. In the browser share dialog, pick any share target (e.g. entire screen) and make sure to check "Share system audio" at the bottom. Confirm to start.
Why can't I capture system sound?
Most likely you forgot to check the "Share audio" checkbox in the popup. Also, macOS needs BlackHole installed; Firefox does not support system audio – use Chrome/Edge.
What options appear in the share dialog?
You'll see three tabs: "Chrome Tab", "Window", "Entire screen". Choose any, but you must check the "Share system audio" box at the bottom, then click Share.
Which export formats are available?
In settings you can select auto‑export: WEBM (original) or WAV (lossless). Without auto‑export, recordings stay in the list for later manual export.
How to use scheduled stop?
Fill a number in "Scheduled stop" and choose unit (sec/min/hour). E.g. 5 + minutes = stop after 5 minutes. 0 or empty = manual stop.