Add Music to Video

Put a song or background music on a video, under or in place of its sound.

Processed in your browser — files never leave your device

Drop a file here

or

Select file

About Add Music to Video

Put a song, background music or a voice-over on a video. Mix it under the video's own sound or replace the sound completely, set each volume, start the song from any point, repeat it to fill a long video and fade it out at the end. The picture is copied without re-encoding.

How Add Music to Video works

Add Music to Video mixes an audio file into your video with FFmpeg. The music is cut to start from the point you choose, repeated if the video is longer (when Repeat is on), set to its own volume and faded out over the last 2.5 seconds. It is then mixed with the video's own sound at the volume you set, or replaces it when that volume is 0%.

The picture is copied without re-encoding for MP4, MOV and MKV videos, so even long videos finish quickly and keep their quality; the sound is saved as AAC. Everything happens in your browser.

When to use Add Music to Video

  • Add background music to a reel, vlog or slideshow video.
  • Replace noisy wind or traffic sound with music.
  • Put a voice-over recorded separately onto a video.
  • Add a soft music bed under a product or tutorial video.

How to use Add Music to Video

  1. Add your video. Drop the video into the box above.
  2. Choose the music. Select an MP3, M4A, WAV or other audio file. Play it and pause where the music should start.
  3. Set the volumes and add. Balance the music and the video's own sound, then click Add music and download the video.

Options explained

Music volume
35% sits nicely under speech; raise it for music-only videos.
Video's own sound
0% replaces it with the music; 100% keeps it as it was.
Start the music from
Skips the start of the song, for example a long intro.
Repeat and fade out
Repeats a short song to fill the video and fades it out at the end instead of cutting it off.

Frequently asked questions

Can I use any song?

You can add any audio file you have, but platforms such as YouTube and Instagram may mute or block videos with copyrighted music. Use music you have the rights to, or royalty-free tracks.

Is my video uploaded?

No. The music is added in your browser.

Is Add Music to Video free?

Yes. Add Music to Video on DocEpic is free, with no sign-up, no watermark and no limit on how often you use it. The site is supported by ads.

Are my files safe with Add Music to Video?

Yes. Add Music to Video runs entirely in your web browser, so your files never leave your device and are never uploaded to us.

Do I need to install any software?

No. Add Music to Video works in any modern browser on Windows, macOS, Linux, Android and iPhone.

Is there a file size limit?

Files up to 1024 MB are accepted. Because the work happens on your device, very large files depend on your device's memory.

Related tools