100% client-side — files never leave your device

Audio cutter and trimmer

Keep one exact section from an MP3, WAV, M4A, FLAC or other audio file. Preview the source, type sample-accurate boundaries, then export MP3 or WAV without uploading the recording.

Drop an audio file to trimor click to browse — the track stays on your device

MP3 · WAV · M4A · AAC · OGG · Opus · FLAC · WebM · AIFF

How it works

  1. Open the audio file. The track is decoded locally and appears with a playback control and its exact duration.
  2. Set the section to keep. Preview the source, then enter the start and end as seconds, MM:SS or HH:MM:SS.
  3. Trim and download. Choose MP3 for a compact clip or WAV for further editing, then save the result to your device.

Cut the useful part, not the whole recording

An audio cutter solves a different problem from a converter. The goal is not merely to change MP3 into WAV; it is to remove the silence before an interview, isolate a quote, shorten a voice note or keep one song from a longer recording. The player above lets you locate the boundaries before committing to the cut.

Exact timecodes without a timeline learning curve

Enter plain seconds for quick jobs, MM:SS for songs and podcasts, orHH:MM:SS for lectures and audiobooks. Decimal seconds are accepted when a cut needs to land between whole-second marks. The selection is validated against the real decoded duration, so an end time outside the track is caught before encoding starts.

Choose the output for what happens next

MP3 is the practical choice for messaging, podcast excerpts and portable playback. WAV is larger but avoids another lossy compression step, which matters when the clip will be edited again. Need several pieces rather than one selection? Use the audio splitter. Need to place several recordings one after another? Use the audio merger.

Frequently asked questions

What is the difference between trimming and splitting audio?

Trimming keeps one selected range and discards everything outside it. Splitting divides a track into several separate files. Use the splitter when you need chapters or multiple clips.

How precisely can I set the cut?

Start and end times accept decimal seconds, MM:SS or HH:MM:SS. A value such as 1:02.5 cuts at 62.5 seconds, and the decoded samples are sliced at that boundary.

Can I cut MP3, M4A, WAV and FLAC files?

Yes, when the browser can decode the codec. Chrome and Edge handle the broadest mix of MP3, WAV, M4A, AAC, OGG, Opus, FLAC, WebM audio and AIFF files.

Will trimming lower the sound quality?

WAV output preserves the decoded samples without lossy compression. MP3 output is re-encoded, so choose 256 or 320 kbps for music and 128 or 192 kbps for speech.

Does filetools.co upload or store my audio?

No. The browser reads, cuts and encodes the track locally. The recording, its file name and the trimmed result never leave your device.

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