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Trim Audio

Cut an audio file to just the part you want, with a visual waveform.

Select an audio file

MP3, WAV, M4A, FLAC, OGG — trimmed in your browser

點擊選擇，或將檔案拖曳至此

如何 Trim Audio

  1. 1

    Add your audio

    Drop in any common audio file — it's decoded and shown as a waveform.

  2. 2

    Set the start and end

    Drag the start and end handles to the part you want to keep.

  3. 3

    Trim and download

    Click Trim & download to save just the selected clip.

Related PDF tools

Merge AudionewJoin multiple audio files into one, in the order you set, with an optional gap.Normalize AudionewEven out a quiet or inconsistent recording — peak-normalize or apply a fixed gain.Audio ConverternewConvert MP3, WAV, M4A, AAC, FLAC or OGG to MP3 or WAV — entirely in your browser.Extract Audio from VideonewPull the soundtrack out of an MP4, MOV or WebM video as MP3 or WAV.

Trim Audio — 常見問題

Is my file uploaded?+

No — the audio is decoded, trimmed and re-encoded entirely in your browser.

Can I keep the middle and drop both ends?+

Yes — the start and end handles set the region to keep; everything outside them is removed.

What format is the output?+

MP3 or WAV, your choice. It defaults to matching the input where possible.

Is the cut sample-accurate?+

Yes — the trim happens on the decoded PCM samples, so it's precise to the frame.

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。