Ssakdduk
Free

Ssakdduk

Add background music

Put a music track under your video. For each range you decide whether to keep the original audio, use the music, mix both, or go quiet. You can also join several clips and score them in one pass.

Processed in
Your browser
Server upload
None
Formats
MP4 · MOV
Best under
20 min · 1080p

Drag & drop multiple MP4/MOV files or click

Merge clips and set original / BGM / mute per time range

Recommended: under 20 min / 1080p — on iPhone prefer Most Compatible (MP4) — larger files may take several minutes

FAQ

Before you start

01
What if the track is shorter than the video?
It loops to fill the video and is cut at the end. A longer track is trimmed where the video ends. Fades at the start and end keep it from cutting off abruptly.
02
Can I keep the original sound and still add music?
Pick "Both" for a range and the two are mixed, with a separate volume for the music. Keeping original audio where someone speaks and music elsewhere is usually the cleanest result.
03
What about music licensing?
The tool only combines the files you give it. Using a copyrighted track can get your upload flagged on the platform you post to, so check what the track allows.