Private · on-device
Add Audio to Video
Replace a video's soundtrack with a music or voice file. Upload the video first, then the audio. Free and private in your browser.
mp4movwebmavimkv+14
▶MP4
Drag & drop files or Browse
MP4MOVWEBMAVIMKVFLVWMVM4V+11 more
Processed on your device. Nothing is uploaded
How to use Add Audio to Video
- 01Add files
Choose files or drop them here
- 02Settings
Settings · Runs on your device
- 03Download
Processed on your device. Nothing is uploaded
Frequently asked questions
What order should I upload files?
Upload the video first and the audio file second. The tool maps the new audio onto the video and ends with the shorter stream.
Are my files uploaded?
No. Mixing runs entirely in your browser.
Is Add Audio to Video free?
Yes. Free with no limits, because processing runs on your own device.