Audio Cutter & Ringtone Maker
Cut audio online for free: open an MP3, WAV or M4A, drag the handles on the waveform to pick the part you want, add a fade, and export. You can also make a 30-second iPhone M4R ringtone. Nothing is uploaded.
Drop an audio file or click to choose
MP3 · WAV · M4A · OGG · FLAC · OPUS · AIFF
Files are processed on your device. The FFmpeg engine (~30 MB) is downloaded once from a CDN and then cached by your browser. Because ffmpeg.wasm keeps files in memory, very large files (over ~500 MB) may fail on phones or low-memory computers.
How to cut an MP3 or other audio file
- Open an audio file. Drop an MP3, WAV, M4A, OGG, FLAC, Opus or AIFF file onto the cutter, or click to choose one. Its waveform appears in a moment.
- Select the part you want. Drag across the waveform or drag the start and end handles. For exact cuts, type the start and end times (for example 0:42.50).
- Preview and add fades. Click Play selection to listen. Add a fade in or fade out, or switch to Remove selection to cut a section out of the middle.
- Export. Choose the original format, MP3, WAV, M4A or M4R and click Cut & export, then download the trimmed file.
How to make an iPhone ringtone (M4R)
- Open the song and turn on Ringtone preset. The selection is limited to 30 seconds and a 1-second fade-out is added.
- Move the selection to the chorus or the part you like, preview it, and click Cut & export M4R.
- Mac: connect the iPhone with a cable, select it in the Finder sidebar and drag the .m4r file onto the window.
- Windows: open the Apple Devices app (or iTunes), connect the iPhone and drag the .m4r onto the device.
- iPhone only: save the file to Files, import it into GarageBand, then use Share > Ringtone.
- On the iPhone, go to Settings > Sounds & Haptics > Ringtone and pick the new tone.
For Android, export MP3 instead, copy it to the phone's Ringtonesfolder (or open it in Files), and choose it in Settings > Sound.
Tips for clean cuts
- Start and end cuts in quiet moments, or add a 0.5–1 s fade so the clip doesn't pop.
- Use the time fields for precise edits (to 1/100 s); arrow keys move a focused handle by 0.1 s (Shift for 1 s).
- Export to WAV if you will edit the clip again, to avoid re-encoding twice.
Private and offline-friendly
The file is processed on your device; the FFmpeg engine (~30 MB) is downloaded once from a CDN and is only needed for MP3, M4A and M4R exports. WAV export and the waveform use your browser's built-in Web Audio, so they work without it.
Frequently Asked Questions
How do I trim an MP3 online?↓
Open the MP3 in the audio cutter, drag the handles on the waveform (or type exact start and end times), click Play selection to check it, and click Cut & export. The trimmed MP3 is created in your browser and downloads straight away.
How do I make an iPhone ringtone from a song?↓
Turn on the Ringtone preset, select up to 30 seconds of the song and export the .m4r file. On a Mac, connect your iPhone, open it in Finder and drag the .m4r onto it. On Windows, drag it onto your iPhone in the Apple Devices app or iTunes. Then pick it in Settings > Sounds & Haptics > Ringtone.
Can I cut out the middle of a song?↓
Yes. Select the part you want to delete and choose Remove selection. The audio before and after the selection is joined with a short crossfade so there is no click at the cut.
Does cutting an MP3 reduce its quality?↓
Exporting to MP3, M4A or M4R re-encodes the audio, which is not noticeable at 192 kbps or higher. For a perfect copy of the selection, export to WAV, which is lossless.
Is my audio uploaded anywhere?↓
No. The waveform, preview and WAV export use your browser's Web Audio engine, and MP3, M4A and M4R exports use FFmpeg running locally in WebAssembly. Only the FFmpeg engine (about 30 MB) is downloaded once from a CDN.
How long can the audio file be?↓
The cutter decodes the whole file into memory to draw the waveform, so files up to about an hour work on most computers. Very long recordings may fail on phones because of browser memory limits.
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