Add audio to video online
Add background music or replace the sound in any video. Upload your video and audio file. Done in seconds.
1 · Video file
Drop your video here · MP4, MOV, AVI, WEBM
or click to browse — MP4, MOV, AVI, WEBM, MKV
Max: 500MB • 100% Private
2 · Audio file
Drop your audio here · MP3, WAV, AAC, M4A
or click to browse — MP3, WAV, M4A, OGG
Max: 500MB • 100% Private
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Frequently Asked Questions
Can I add music to a video that already has sound?
Yes. Choose Mix audio mode to keep the original sound and add music on top. Use the sliders to balance volume.
What if my music is longer than the video?
The audio is automatically trimmed to match the video length. Nothing is cut from the video itself.
What if my music is shorter than the video?
Turn on Loop audio and the music will repeat from the start until the video ends.
What audio formats can I upload?
MP3, WAV, AAC, and M4A are all supported.