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Frequently asked questions

How do I extract audio from a video?

Upload an MP4 video and the tool extracts the audio track and offers it as an MP3 download. Processing runs in your browser using FFmpeg (WebAssembly) with a progress bar. No file is sent to a server.

Are my files stored?

No. The video is processed entirely in your browser. Your video and the extracted audio never leave your device or get stored on our servers.

What format is the output?

The output is MP3, which is widely supported for audio. If the source video has no audio track, the tool may show an error or produce a silent file.

Why does it take time?

Demuxing and encoding audio with FFmpeg in the browser (WebAssembly) is CPU-intensive. The progress bar indicates how far the process has gone. Longer videos take more time.

Does it work with any video?

The tool is designed for MP4. Other containers or codecs may not be supported. For best results use a standard MP4 file with an audio track.