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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

点击选择，或将文件拖到此处

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 — 常见问题

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.

你们会把我的文件上传到服务器吗？+

不会——这里的每个工具都完全在你的设备上处理文件，不会向服务器上传任何内容。唯一的例外是 AI 工具，它们会把提取的文本（而非文件本身）发送给 Claude 来完成工作。

有文件大小限制吗？+

我们没有人为设置限制，但由于处理过程在你的浏览器中进行，非常大的文件（超过 500MB 或 1000 页）会受到你设备内存的限制，而非我们的限制。