Audio Trimmer and Cutter
Upload an audio file or drag and drop
MP3, WAV, M4A, AAC, OGG or FLAC. Trimmed in your browser, never uploaded.
Trimming runs entirely in your browser. Your audio is never uploaded.
Cut an audio file down to just the part you need, without uploading it anywhere. Drop in an MP3, WAV, M4A, OGG or FLAC file, drag the start and end handles on the waveform, and export the selection as MP3, WAV, OGG or FLAC. It is ideal for making ringtones, pulling a quote from a recording, cutting dead air off the front of a voice memo, or grabbing a short clip from a longer track. Everything runs in your browser, so your audio stays private.
How to use this tool
- 1Upload an audio file. Its waveform appears once it has decoded.
- 2Set the start and end of the part you want using the two sliders. The selected region is highlighted, and the length is shown below.
- 3Use the audio player to listen and find the exact moments you want.
- 4Pick an output format (MP3, WAV, OGG or FLAC) and, for MP3, a bitrate.
- 5Click Trim and save. The clip is created on your device, then click Download.
Example
Upload the song, drag the start to 0:45 and the end to 1:05, choose MP3 at 192 kbps, and export. You get a 20-second MP3 clip ready to set as a ringtone, created entirely on your device.
Upload an M4A memo that has ten seconds of fumbling at the start. Move the start handle to 0:10, leave the end at the finish, and save as MP3. The cleaned clip keeps only the part you want.
Common use cases
- Making a phone ringtone from a favourite section of a song
- Cutting silence or a false start off the beginning of a voice memo
- Pulling a short quote or soundbite out of a long interview recording
- Trimming a podcast clip to share on social media
- Grabbing a loop or sample from a longer audio file
Common mistakes
- Setting the end before the start - the end must be after the start, or the tool will ask you to fix it.
- Expecting the clip to sound better than the source - trimming does not change quality, it only shortens; choosing MP3 at a low bitrate can add slight loss.
- Trying to trim a very long recording on an older phone - decoding the whole file to audio uses memory, so long files can be slow on low-memory devices.
- Forgetting to pick the output format - the clip is exported in the format you select, which does not have to match the input.
Frequently asked questions
Can I trim MP3, WAV, M4A, OGG and FLAC?
Yes. The trimmer reads any audio your browser can decode, including MP3, WAV, M4A/AAC, OGG and FLAC, and it can export the trimmed selection as MP3, WAV, OGG or FLAC. The output format does not have to match the input.
Is my audio uploaded to a server?
No. Decoding, trimming, and encoding all happen in your browser using the Web Audio API and WebAssembly. Your file never leaves your device, so it is safe for private recordings, and it keeps working even if you go offline after the page loads.
Does trimming reduce the audio quality?
Trimming itself is lossless - it just shortens the audio. Any quality change comes only from the output format you choose. Export to WAV or FLAC for a lossless clip, or to MP3/OGG at a higher bitrate to keep the file small with minimal loss.
How precise is the cut?
The sliders step in hundredths of a second, and the cut is made at the nearest audio sample, so it is accurate to a few milliseconds. Use the built-in player to confirm your start and end points before exporting.
Can I make a ringtone with this?
Yes. Select the section you want, keep it under about 30 seconds, and export as MP3. You can then set the file as a ringtone on most phones. Everything is done in your browser with no app to install.
Is there a length or size limit?
There is a 150 MB per-file guard so the browser tab stays stable. The trimmed output can be any length up to the original. Very long source files use more memory to decode, so they may be slower on older devices.
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