Video Tools
Add Music to Video
Add background music or voiceover to any video with volume mixing controls.
Your files stay on your device - processed locally via WebAssembly, never uploaded
Drop a video file or click to upload
MP4, WebM, MOV, AVI, MKV
Drop an audio file or click to upload
MP3, WAV, OGG, AAC, M4A, FLAC
Your videos are processed locally in your browser. Nothing is uploaded to any server.
Embed this tool on your website
Copy this code to add the Add Music to Video to your site for free. It runs entirely in your visitors' browsers - no API key, no usage limits.
<iframe src="https://optipix.art/embed/add-music-to-video" width="100%" height="600" style="border:1px solid #e4e4e7;border-radius:8px;" title="Add Music to Video by OptiPix" loading="lazy"></iframe> <p style="font-size:12px">Free tool by <a href="https://optipix.art/add-music-to-video">OptiPix Add Music to Video</a></p>
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About Add Music to Video
Last updated: May 2026
OptiPix Tilføj Musik til Video giver dig mulighed for at lægge baggrundsmusik, voiceover eller enhver lyd oven på en video. Upload en video og en lydfil, og styr derefter lydstyrken for både den originale video-lyd og den nye musik. Vælg at erstatte den originale lyd helt eller at blande dem sammen. Gentag musikken, hvis den er kortere end videoen. Bruger FFmpeg.wasm amix-filter.
How It Works
FFmpeg.wasm amix-filter til blanding, eller -map til erstatning. Lydstyrkejustering via volume-filter.
Use Cases
- •Tilføj baggrundsmusik til vlogs
- •Tilføj voiceover til skærmoptagelser
- •Erstat lyd i præsentationer
- •Tilføj musik til diasshows
- •Opret video med brugerdefineret lydspor
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