TuneLab
MP3 Cutter
Trim any MP3 file with a visual waveform editor. Select a region and export. No upload needed.
Processed on your device — files never leave your machine
Drop MP3 file here or click to browse
Max 50MB · Also supports WAV, FLAC, OGG, M4A
How to Cut an MP3
- 1 Upload an MP3 file (or WAV, FLAC, OGG)
- 2 Drag handles on the waveform to set start and end
- 3 Export the trimmed section as WAV
Frequently Asked Questions
How do I cut an MP3 file for free?
Drop your MP3 into the editor above. Drag the handles on the waveform to set start and end points, preview the selection, then click Export. The trimmed audio downloads as a lossless WAV file. No account, no upload — everything runs on your device.
Can I cut MP3 without losing quality?
The tool decodes your MP3 to raw audio for precise editing, then exports as lossless WAV. This avoids the quality loss from re-encoding. For final MP3 output, convert the WAV using an audio converter.
What audio formats are supported besides MP3?
WAV, FLAC, OGG, M4A, and AIFF. The tool handles any format your device can decode. Output is always lossless WAV regardless of input format.
Is there a file size or duration limit?
Files up to 50 MB. Very long recordings may take a few seconds to render the waveform. There is no time limit on the trimmed output.
Is my MP3 uploaded to a server?
No. Everything runs locally on your device using the Web Audio API. Your files never leave your machine — not even temporarily. Nothing is stored or transmitted.
How precise is the cut point?
You can set start and end points to the exact sample by dragging handles on the waveform. Zoom in for fine adjustments. Precision is limited only by your audio's sample rate — typically 44,100 samples per second.
Can I cut multiple sections from the same file?
Currently the tool supports a single selection per export. For multiple cuts, export the first section, reload the file, and select the next region.
How our audio processing works
