Trim Audio
Cut an audio file down to the part you actually want by setting a start time and a duration or an end time, then export it as MP3, WAV, M4A or FLAC. Useful when the recording began before the meeting did, or when you only need ninety seconds out of an hour. It is free, needs no account, and adds no watermark to your result.
Trim Audio
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What people use it for.
What happens to your file.
FFmpeg seeks to your start time and writes the part you asked for, set by a duration or an end time, to a new file in the format you select. Times can be typed as seconds or as minutes and seconds, such as 1:30. Each cut gets a 10-millisecond fade, too short to hear, so it does not click, and you can ask for a longer fade in or out. The title, artist and cover art are kept, an MP3 or M4A is written at the source’s own bitrate when that is higher, and a 24-bit WAV stays 24-bit. The source is never modified.
Where it stops: A start time, a duration or an end time is needed, otherwise there is nothing to cut. This makes one continuous cut rather than removing a section from the middle; for that, trim the parts you want and merge them.
Everything you need, without a paywall.
Common questions.
How do I remove a section from the middle instead?
Trim the part before it and the part after it as two files, then join them with Merge Audio. This tool keeps one continuous span.
Can I cut from one time to another, such as 0:30 to 1:45?
Yes. Set the start to 0:30 and the end to 1:45, or the start and a duration. An end time, when set, is used instead of the duration.
Does trimming reduce the quality?
WAV and FLAC keep the audio exactly as decoded, and a 24-bit recording stays 24-bit. MP3 and M4A are re-encoded, at the source’s own bitrate when that is higher than the setting, so the loss stays inaudible.
Will the cut click?
No. Each cut point gets a fade of 10 milliseconds, far too short to hear, which removes the click a hard cut makes. Set Fade in or Fade out for a longer, audible fade.
Is my original file changed?
No. The original is read only and the trimmed audio is written as a new file. The temporary working copy is removed after processing.
You might also need.
Join multiple audio files in upload order and export a single MP3, M4A or WAV track.
Raise or lower audio volume by a percentage and export a new MP3 or WAV file.
Normalize perceived loudness using FFmpeg loudnorm processing for more consistent playback volume.
Convert audio files between MP3, WAV, M4A, FLAC and OGG using FFmpeg with bitrate and quality controls.