Audio Tools
Replace Audio in Video Online – Swap the Soundtrack
VideoMuto replaces a video’s audio track with another file in your browser.
- No file limits
- No registration
- Free forever
- Videos never leave your browser
Audio replacement happens locally in your browser. Your files never leave your device.
Everything runs locally — your file never leaves this device.
swap the soundtrack of a video. Add your own audio file and it replaces the original track, synced to the footage.
How to Replace Audio in a Video
Add Your Video
Drop the video whose audio you want to swap onto the page.
Add the New Audio
Upload the replacement audio file.
Download the Video
Click Apply and download the video with its new soundtrack.
Why Replace Audio?
Music, narration, or a better recording can completely change a video’s impact.
Replacement runs locally, so neither your video nor audio leaves your device.
Replace Audio Options
| Input | Video + audio file |
|---|---|
| Sync | Replace or loop to fill |
| Output | Video with new audio |
| Registration | Not required |
| Upload | None, processed on your device |
Frequently asked questions
What audio formats can I use?
Common formats like MP3, WAV, AAC, and M4A work as the replacement track.
What if the audio is shorter than the video?
The audio plays for its length; the rest of the video stays silent, or you can loop the track to fill it.
Related tools
Your videos never leave your browser
All processing happens locally on your device. Nothing is uploaded to a server, stored, or tracked.