Replace Audio in Video
Sostituisci la traccia audio di un video con la tua
Drop a video file (MP4, WebM, MOV, AVI, MKV)
🔒 Files never leave your device
Drop an audio file
🔒 Files never leave your device
Output length matches the shorter of the two.
⚡ Uses FFmpeg WebAssembly. First run downloads ~30 MB (cached after). Encoding takes roughly 1–5× the video's duration.
Come funziona
- 1Upload your video
Drop or select a video file.
- 2Configure options
Choose the settings that fit your use case.
- 3Download
Save the processed video to your device.
Che cos'è Replace Audio in Video
Cambia la traccia audio di un video con un altro file audio. Tutto locale.
Per il lavoro, per lo studio o per uso personale - questo tool è gratis quante volte vuoi. Niente watermark, niente sign-up, niente ads nei tuoi documenti.
Domande frequenti
Are my videos uploaded?
Never. Processing runs entirely in your browser using FFmpeg WebAssembly.
Why is it slow?
Video encoding is CPU-heavy. Expect roughly 1–5× the video's duration for encoding. First-time load also downloads ~30 MB of FFmpeg (cached after).
What's the file size limit?
Depends on your device's memory. Files up to ~1 GB usually work; multi-GB files may crash the tab.
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