Add Audio to Video

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Add Audio to Video

Add background music or a voice-over to a video — replace the original sound or mix the two together.

Drag & drop a video here, or click to browse

Accepted: MP4, MOV, WEBM, MKV, AVI, M4V. Up to 20 MB.

Drop an audio file here (MP3, M4A, WAV, OGG, AAC, FLAC, Opus)

The output stops when the shorter of the two ends.
Live preview
Upload a video and an audio track to watch them play together before you apply it.
Video 0:00
New audio 0:00
Output 0:00
The preview mutes the original sound and plays the new track in sync.
Adding the audio…
Your video is ready

Download
How it works
1
Upload a video and the audio to add — music, a voice-over or any track.
2
Choose replace or mix and watch the synced preview — the track bars show how long each part runs.
3
Apply it — the picture is not re-encoded, and the new soundtrack is encoded as high-quality AAC.
Popular conversions
Add music to video Add audio to video Replace video audio Add a voice-over Put a song over a video
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