Add Music to Video or Mute It
Remove the sound from a video in one click, or add your own music: replace the original audio or mix it underneath the voices, with volume, fade in/out and looping. No upload, no watermark.
Free · No sign-upHow to use Add Music to Video & Mute
- 1. Drop your video — MP4, MOV, WebM, MKV and more. It is processed on your device.
- 2. Choose what to do: Mute removes the sound, Replace with music swaps it for your song, and Mix music in keeps the voices with music underneath.
- 3. Add a music file and set the music volume, the original sound level, where the song starts, and fade in/out. Short songs loop automatically; long ones are trimmed to the video.
- 4. Preview and save the MP4. The picture is copied as it is, so there is no quality loss.
Frequently asked questions
How do I remove the sound from a video?
Drop the video, choose Mute and press Mute & save MP4. The picture is copied without re-encoding, so it is instant and keeps the original quality.
Can I keep the original voices and add music?
Yes. Choose Mix music in, then lower the music volume (for example 20–40%) so speech stays clear. You can also raise or lower the original sound separately.
What if the song is shorter or longer than the video?
A longer song is trimmed to the video length with a smooth fade-out. A shorter song loops until the end of the video, or you can turn looping off so the rest of the video is silent.
Can I start the music from the middle of the song?
Yes. Use Start the song at to skip the intro and begin at the chorus or any other point. Fade in and fade out make the start and end sound natural.
Is it really free and private?
Yes. Everything runs in your browser with WebAssembly — your video and music are never uploaded, and there is no watermark or sign-up. Only use music you have the right to use.
Which formats are supported?
Most common video formats (MP4, MOV, WebM, MKV, AVI) and music formats (MP3, M4A, WAV, OGG, FLAC). The result is always an MP4 that plays on phones, social media and computers.