PrivTab

Add Music to Video

Put a song, a voice-over or a sound effect on a video.

Runs in your browser · No uploads

Drag & drop your video here

or

MP4, MOV, WebM or MKV

Your files stay on your device. Nothing is uploaded.

  • Nothing leaves your device
  • No server-imposed size limits
  • No sign-up, no watermark
  • Free

How to add music to a video

  1. Choose the video.
  2. Choose the music (MP3, M4A, WAV, OGG or FLAC).
  3. Keep or replace the video's own sound, set the volumes, and press Add music.

Options

  • Keep the original sound with the music under it, or replace it.
  • Music volume and original volume from 0 to 200%.
  • Repeat the music when it is shorter than the video.
  • Fade the music in and out.

Good to know

  • The picture is copied as it is, so it keeps its full quality and the tool is fast.
  • Only the sound is encoded again (AAC for MP4 and MOV, Opus for WebM).
  • The result is as long as the video; longer music is cut at the end.
  • Make sure you have the right to use the music, especially for public posts.
  • It uses your browser's built-in video technology. It works best in current Chrome and Edge; recent Safari and Firefox versions work too.

Your video and music stay on your device

Everything happens in your browser. Your video and music are never uploaded, and this site's security policy blocks the page from sending files anywhere.

Frequently asked questions

Can I start the music later in the video?

Not yet. Trim the music first with the Audio Trimmer to start it at the part you want.

Are my video and music uploaded?

No. They are processed in your browser and never sent anywhere.