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Add Music to a Video Free Online
Upload your video and an audio file, set the volume and fade, and download it with the background music mixed in. No watermark. Sign in with a free account to run it.
Drop your video here
or click to browse
See It in Action
How to Put Music Over a Video Online
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 Background Music 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.
Upload your video, upload an MP3, WAV, M4A, AAC, or OGG file, set the music volume and fade, then download the result. It runs in the browser, there is nothing to install, and the export carries no watermark. A free account is required to run it.
Yes. Exports from the standalone free tools carry no Vidocu branding, including on the free plan. Note this is specific to the free tools: exports from the full platform editor are branded on the free plan, and watermark removal comes with Pro. You still need the rights to the song you upload, which is a separate question from whether the tool brands your export.
Not this free tool. Here you bring your own audio file, which means the licence you cleared is the only one that applies. Vidocu's paid plans take the opposite approach: the background music feature inside the editor ships a curated library that is licensed for commercial use, but it does not accept your own uploads yet. Pick the surface that matches what you have: a track you already own, or no track at all.
Need more from your videos?
Vidocu turns videos into subtitles, voiceover, translations, and help articles, automatically.
Your knowledge is valuable. Make it usable.
Upload once. Use everywhere.
