MP3 Cutter.
Cut and trim MP3, WAV, M4A and other audio files online for free. Fast, easy and 100% private.
Open an audio file
Choose a file from your device to get started
Private & Secure
Cutting happens entirely in your browser — your audio file never leaves your device.
Frame-Accurate
Drag the waveform to select exactly the part you want to keep, down to the millisecond.
Works Everywhere
Cut and trim MP3, WAV and M4A files on any device with a modern browser.
Free to Use
Cut as many files as you like — no limits, no account needed.
Tip: You can cut, trim and download your audio file in just a few clicks.
How to Use & FAQ
How to Cut an MP3 File Online
- Click "Click to browse or drag & drop" and choose the audio file you want to cut.
- Drag the handles on the waveform to select the part you want to keep.
- Preview your selection with the play button, and fine-tune the Start and End times if needed.
- Click Export and choose MP3 or WAV to download your cut file — nothing is ever uploaded.
Frequently Asked Questions
Is it safe to cut MP3 files with this tool?
Yes — your audio file is processed entirely in your browser using the Web Audio API. It's never uploaded to a server, so no one but you ever has access to it.
What audio formats does the MP3 Cutter support?
You can open MP3, WAV, M4A, FLAC, OGG and most other common audio formats, and export your cut file as MP3 or WAV.
Will cutting my MP3 reduce its quality?
No. Cutting just selects a portion of the existing audio — no re-encoding happens unless you choose a different export format or bitrate, so quality is preserved.
Is there a file size or length limit?
No hard limit. Since everything runs in your own browser, the practical limit is your device's memory rather than any server-side restriction.
Do I need to install anything or create an account?
No. MP3 Cutter works entirely online, in any modern browser, with no sign-up and no installation required.