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Audio Converter

Convert MP3, WAV, M4A, AAC, FLAC or OGG to MP3 or WAV — entirely in your browser.

Select an audio file

Drop in any common audio file (MP3, WAV, M4A, AAC, FLAC or OGG) and convert it to MP3 or WAV — in your browser, nothing uploaded.

點擊選擇，或將檔案拖曳至此

如何使用 Audio Converter

  1. 1

    Add your audio

    Drop in an MP3, WAV, M4A, AAC, FLAC or OGG file — it's decoded in your browser, never uploaded.

  2. 2

    Pick a format

    Choose MP3 (with a bitrate) or WAV for the output.

  3. 3

    Convert and download

    Click Convert audio and save the new file.

Related PDF tools

MP3 to WAVnewConvert an MP3 to an uncompressed WAV file, in your browser.WAV to MP3newCompress a WAV to MP3 at the bitrate you choose, in your browser.M4A to MP3newConvert an M4A or AAC file to a widely compatible MP3, in your browser.Extract Audio from VideonewPull the soundtrack out of an MP4, MOV or WebM video as MP3 or WAV.

Audio Converter — 常見問題

Is my audio uploaded?+

No. The file is decoded and re-encoded entirely in your browser using the Web Audio API — it never leaves your device. There's no ffmpeg and no server.

Which formats can I convert from?+

Anything your browser can decode — MP3, WAV, M4A/AAC, FLAC and OGG all work. Output is MP3 or WAV.

Why no FLAC or OGG output?+

Those need a separate encoder that would add a large download. MP3 (via a small in-browser encoder) and WAV (native) cover the common cases without the weight.

Is there a length limit?+

No fixed limit, but a very long file is held in memory while it's processed, so extremely large files depend on your device's RAM.

你們會把我的檔案上傳到伺服器嗎？+

不會——這裡的每個工具都完全在你的裝置上處理檔案，不會向伺服器上傳任何內容。唯一的例外是 AI 工具，它們會把擷取的文字（而非檔案本身）傳送給 Claude 來完成工作。

有檔案大小限制嗎？+

我們沒有人為設下限制，但由於處理過程在你的瀏覽器中進行，非常大的檔案（超過 500MB 或 1000 頁）會受你裝置記憶體的限制，而非我們的限制。