Why convert WAV to MP3?

WAV files are uncompressed PCM and can be 10× larger than MP3. Conversion is essential for email, web, and mobile distribution.

What bitrate is right for voice recordings?

128 kbps mono is perfectly fine for spoken audio. Music benefits from 192–256 kbps.

No. ffmpeg.wasm runs locally — your WAV never reaches a server.

將 WAV 音訊轉為 MP3,可調整位元率,完全透過 ffmpeg.wasm 在瀏覽器執行。

100% in your browser. Your file never leaves your device.

WAV audio file

MP3 bitrate

Pick a WAV file to begin.

Voice memos: phone recordings exported as WAV become emailable as MP3.
Music masters: compress DAW WAV exports for sharing demos with collaborators.
Audiobook chapters: shrink long-form WAV reads to a phone-friendly size.

Why convert WAV to MP3?: WAV files are uncompressed PCM and can be 10× larger than MP3. Conversion is essential for email, web, and mobile distribution.
What bitrate is right for voice recordings?: 128 kbps mono is perfectly fine for spoken audio. Music benefits from 192–256 kbps.
Is my recording uploaded?: No. ffmpeg.wasm runs locally — your WAV never reaches a server.

Last updated: 2026-05-20 By jarvisbox