Mix Audio (Overlay)
Mix multiple audio tracks together so they play simultaneously. Layer music, voiceovers, sound effects — as many as you need.
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Drop files here or click to browse
Max 10240.0 MB per file · drop multiple for batch
or press Ctrl+V to paste
100% private — files never leave your device
·Free — no sign up, no watermark
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How to Use Mix Audio (Overlay)
- Upload the primary audio track
- Upload the secondary audio track to overlay
- Choose the output format
- Click Process and download the mixed audio
Features
- Overlay two audio tracks to play simultaneously
- Perfect for adding background music or sound effects
- 100% private — files never leave your browser
- Free with no watermark or file size limits
Frequently Asked Questions
- How do I mix two audio tracks together?
- Upload both audio files, choose an output format, and click Process. Both tracks play simultaneously in the output.
- Can I add background music to a voiceover?
- Yes, upload your voiceover as the primary track and the music as the secondary track. Both will play at the same time in the output.
- Is this audio mixer free?
- Yes, completely free with no limits. All processing happens locally in your browser using FFmpeg WebAssembly.