Add Music to Video Online
Add background music or audio tracks to your videos with volume control and fade effects.
Add Music to Video — Open in browser editor
Runs entirely in your browser. No uploads, no signup. Works with MP4, MOV, WebM, and more.
Free forever. All processing happens locally on your device.
What Is Adding Music to Video?
Add Music to Video is a free online tool that add background music or audio tracks to your videos with volume control and fade effects. No files are uploaded — everything is processed locally on your device.
Add music to video online free with this browser-based tool that lets you mix background music, voiceovers, or sound effects into your videos. Our browser-based audio mixer lets you control volume, add fade effects, and sync audio to your video timeline — all processed locally on your device.
Privacy guarantee: Add Music to Video processes all files directly in your browser using WebAssembly. No data is uploaded to any server, no information is collected, and the tool works offline after loading. Unlimited usage with no signup, no watermarks, and no file size limits.
How to Use Add Music to Video
Import video and audio
Drop your video file and audio file (MP3, WAV, AAC) into the editor.
Mix and adjust
Place audio on the timeline, adjust volume, and add fade in/out effects. Mute original video audio if needed.
Export with audio
Preview the final mix, choose quality settings, and download your video with the new audio.
Why Use Our Audio Mixer?
Frequently Asked Questions
Can I add multiple audio tracks?
Yes! Our editor supports up to 3 audio tracks that you can layer and mix together with independent volume controls.
Can I mute the original video audio?
Yes. You can mute, reduce, or keep the original video audio and mix it with your added music or voiceover.
What audio formats are supported?
We support MP3, WAV, AAC, OGG, and most common audio formats. Audio is mixed into the final video export.
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