Voice + music
Layer a main voice track with background music in one export.
Free Online Audio BGM
Mix a main track (voice, podcast, etc.) with background music. Adjust each volume and download—free, no upload.
Main audio
Drag & drop or click to browse
No file chosen
MP3, WAV, M4A, FLAC · up to 200 MB
Background music
Drag & drop or click to browse
No file chosen
MP3, WAV, M4A, OGG · up to 200 MB
Main audio
—
Background music
—
100%
40%
Background music
Processed locally in your browser — files never leave your device. Need more features offline? Try the Windows Audio Cutter.
Why Mix Background Music Online?
Perfect for voiceovers, podcasts, and narrations with subtle BGM.
Independent levels
Balance main and BGM volume separately before mixing.
Local mixing
Both tracks stay on your device during processing.
How to Mix Background Music Online in 3 Steps
Perfect for voiceovers, podcasts, and narrations with subtle BGM.
1
Add main audio and background music
Select a main track (voice, podcast, etc.) and a background music file using the pick cards or drag and drop.
2
Adjust mix settings
Set main and BGM volume levels, turn Loop to match main audio on or off, and choose MP3, M4A, or WAV output.
3
Mix and download
Click Mix & Download. When mixing finishes, save the combined track to your device.
Audio BGM FAQ
How long can each track be?
Each file can be up to 200 MB. Output length matches the main audio track. Turn on Loop to match main audio when background music is shorter.
Can I lower the background music?
Yes. Use the BGM volume slider—40% is a good starting point for voiceovers.
Can background music loop?
Yes. Enable Loop to match main audio so shorter BGM repeats until the main track ends. Turn it off to play BGM once.
Which output formats are available?
MP3, M4A, or WAV.
Need Pro Audio Tools on Windows?
Videoradius Audio Cutter supports MP3, WAV, M4A, merge, fade, and 100% offline processing.