Uwarp

Trim audio locally with FFmpeg. Video uploads export the selected audio segment only. First run downloads FFmpeg (~25 MB) once in this browser.

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Cut audio online free

Cut audio online free. Trim MP3, M4A, or WAV (or extract a segment from video) with start and end times — no server upload required.

What is an audio cutter?

An audio cutter (trim audio tool) lets you cut a section from an audio file by choosing start and end times. You can also upload a video and export only the selected audio segment as MP3, WAV, or M4A — all in your browser with FFmpeg WebAssembly.

Cut audio features

Trim and cut audio clips online without uploading to a server.

  • Cut audio online

    Set start and end times to trim MP3, M4A, or WAV files.

  • Trim from video

    Upload MP4, MOV, or WebM and export a cut audio segment.

  • Choose output format

    Download the cut clip as MP3, WAV, or M4A.

  • No server upload

    Cutting runs locally with FFmpeg WebAssembly for privacy.

  • Clip length preview

    See duration and selected clip length before you cut.

How to cut audio online

Trim an audio clip in three steps.

  1. Upload audio or video

    Drop MP3, M4A, WAV, or a video file (up to 200 MB).

  2. Set start and end

    Adjust the sliders to select the section you want to keep.

  3. Cut and download

    Click Cut audio, then download the trimmed clip.

Great for

Common cut-audio and trim-audio scenarios.

  • Ringtone clips

    Cut a short segment from a song for alerts or social posts.

  • Podcast edits

    Trim intros, outros, or silence before publishing.

  • Voice note cleanup

    Remove unwanted starts and ends from recordings.

  • Video soundtrack snippets

    Extract and cut audio from a video without the picture.

Frequently Asked Questions

Quick answers about this tool—open a question to read more.