DashConvert

Replace Audio in Video

Audio-Track eines Videos durch eigenen ersetzen

🔒 100 % im Browser🆓 Für immer gratis✨ Keine Watermark
1. Video
Drop files here or click to select

Drop a video file (MP4, WebM, MOV, AVI, MKV)

🔒 Files never leave your device

2. New audio track
Drop files here or click to select

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.

So funktioniert's

  1. 1
    Upload your video

    Drop or select a video file.

  2. 2
    Configure options

    Choose the settings that fit your use case.

  3. 3
    Download

    Save the processed video to your device.

Über Replace Audio in Video

Tausche die Audiospur eines Videos gegen eine andere Audiodatei. Alles lokal.

Ob für die Arbeit, fürs Studium oder privat — dieses Tool kannst du so oft nutzen wie du willst, komplett gratis. Keine Watermarks, kein Sign-up, keine Ads in deinen Dokumenten.

Häufige Fragen

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.