Add Background Music to Video for Free
Upload your video and an audio file, set volume and fade options, and download the result. No watermark, no signup required.
Drop your video here
or click to browse
How It Works
Three simple steps
Upload your video
Drag and drop or paste a URL to your video. Supports MP4, MOV, WebM, and more.
Add your audio
Upload an MP3, WAV, or M4A file. Adjust volume, fade in/out, and choose whether to keep the original audio.
Download the result
Click 'Add Background Music' and download your video with the music track mixed in.
Upload your video
Drag and drop or paste a URL to your video. Supports MP4, MOV, WebM, and more.
Add your audio
Upload an MP3, WAV, or M4A file. Adjust volume, fade in/out, and choose whether to keep the original audio.
Download the result
Click 'Add Background Music' and download your video with the music track mixed in.
Why Use This Tool
Volume control
Set the music volume from 0 to 100%. Fine-tune the balance between your original audio and the background track.
Smooth fade in/out
Add professional fade-in and fade-out effects up to 10 seconds. No abrupt starts or stops.
Keep or replace audio
Mix music with the existing audio or replace it entirely. One toggle, instant control.
No re-encoding video
The video track is copied as-is. Only the audio is processed, so quality stays identical and processing is fast.
Frequently Asked Questions
You can upload MP3, WAV, M4A, AAC, and OGG files. The tool converts the audio automatically during processing.
No. The video stream is copied without re-encoding. Only the audio track is processed, so video quality stays identical to the original.
The music is automatically looped to match the video duration. Fade-out is applied at the end of the video regardless of the original track length.
Yes. The 'Keep original audio' option is enabled by default. It mixes your music with the existing audio. Uncheck it to replace the original audio entirely.
Videos up to 500 MB and audio files up to 50 MB are supported. Most common video and audio files work without issues.
Need more from your videos?
Vidocu turns videos into subtitles, voiceover, translations, and help articles — automatically.