MP4를 MP3로 변환 및 오디오 자르기
MP4에서 오디오를 추출하고 파형에서 구간을 잘라 MP3, WAV, M4A, FLAC 또는 Opus로 저장하세요.
Loading Audio Engine (WASM)...
Why use this tool?
Use it when you need a quick MP4 to MP3 workflow but still want the flexibility to export WAV, M4A, FLAC, or Opus from the same page.
The waveform editor makes light cleanup faster, especially when you only need to keep a specific segment from a longer video.
MP4 to MP3 FAQ
Is this only for MP4 files?
No. MP4 is the default workflow on this page, but the uploader also accepts MOV, WEBM, MKV, AVI, and M4V.
Can I export other formats besides MP3?
Yes. MP3 is selected by default, but you can switch to M4A, WAV, FLAC, or Opus before extracting.
How does waveform trimming work?
After extraction, the page decodes your audio locally, renders a waveform, and lets you drag the left and right handles to define a trim range before exporting again.
Are my files uploaded?
No. Video parsing, audio extraction, waveform generation, and trim export all run directly in your browser with FFmpeg and Web Audio APIs.