A simple online audio cutter for songs, podcasts and voice notes
The Audio Cutter lets you trim the start and end off a recording, cut an unwanted section out of the middle, add smooth fades and save the result — all in your browser. Open an MP3, WAV, M4A, OGG or FLAC file, see its waveform, drag the two handles to the part you want and export a clean 16-bit WAV file.
Use it to make a ringtone or alarm sound from a favourite song, shorten a voice memo before sending it, remove a cough or a long pause from a podcast clip, prepare a sample for a video, or split a lecture into the parts you need. Recorded something with the Voice Recorder? Its downloads open here directly.
Your audio is never uploaded. Decoding, editing and encoding all run on your own device with the Web Audio API, so even long files and private recordings stay private.
How to use the Audio Cutter
- Drop an audio file onto the box, or click it to choose a file from your computer or phone.
- Drag the two handles on the waveform to mark the part you want — or type exact times in Start and End (for example 0:42.50).
- Choose Keep selection to trim to that part, or Remove selection to cut it out and join the rest.
- Add a fade in or fade out if you like, then press Play selection or Preview result to listen.
- Optionally pick mono or a lower sample rate to make the file smaller, and check the output length and size.
- Press Export WAV to download the edited audio.
Audio Cutter features
Waveform with touch-friendly handles
Large drag handles work with a mouse or a finger; tap anywhere to move the nearest handle, or drag across the waveform for a new selection.
Trim or cut out
Keep just the selection, or delete it and splice the remaining audio together with tiny 5 ms crossfades so there is no click at the join.
Smooth fades
Fade in and fade out use an S-shaped (raised-cosine) curve that sounds natural, from a tenth of a second up to 30 seconds.
Several edits in a row
“Apply & keep editing” commits an edit so you can remove more sections; Undo steps back up to five times.
Original quality kept
The file’s own sample rate is detected and preserved, and the output is lossless 16-bit PCM WAV unless you choose to downsample.
Ringtone preset
One tap selects a 30-second section with a soft fade-in and fade-out — ideal for phone ringtones and alarms.
Trim vs cut out — which one do you need?
Trimming keeps only the selected region and throws away everything before and after it. Use it to pull a chorus out of a song, or to remove silence at the start and end of a voice recording.
Cutting out does the opposite: the selected region is deleted and the audio either side is joined. Use it to remove a mistake, an advert break or a long pause from the middle of a recording. To remove several sections, cut one, press “Apply & keep editing”, then select the next.
How big will the WAV file be?
WAV stores every sample without compression, so the size is easy to predict: sample rate × channels × 2 bytes × seconds. A 30-second stereo ringtone at 44.1 kHz is 44,100 × 2 × 2 × 30 ≈ 5.3 MB. Choosing mono halves that, and 22.05 kHz halves it again — fine for speech, but music will lose its sparkle above 11 kHz.
| Length | Stereo 44.1 kHz | Mono 44.1 kHz | Mono 16 kHz |
|---|---|---|---|
| 10 seconds | 1.8 MB | 0.88 MB | 0.32 MB |
| 30 seconds | 5.3 MB | 2.6 MB | 0.96 MB |
| 1 minute | 10.6 MB | 5.3 MB | 1.9 MB |
| 5 minutes | 52.9 MB | 26.5 MB | 9.6 MB |
Making a ringtone
- Android: copy the WAV to your phone’s Ringtones or Notifications folder (or open it in the Files app and choose “Set as ringtone”). Android plays WAV ringtones of any length.
- iPhone: ringtones must be 40 seconds or shorter and in .m4r format. Export the WAV here, then import it into GarageBand on the iPhone and use Share → Ringtone, or convert it with an audio editor on a computer and sync it through Finder or iTunes.
- Start the ringtone on a strong beat or the first word of the chorus so it is instantly recognisable. The BPM Tapper can help you find the beat.
- Keep a short fade-in (0.3–0.5 s) so the ringtone does not start with a pop, and a longer fade-out so it loops smoothly.
Audio Cutter FAQ
Is this audio cutter free and private?
Yes. The audio cutter is free with no sign-up or watermark, and your files are processed entirely on your device — nothing is uploaded.
Which audio formats can I open?
Anything your browser can decode: MP3, WAV, M4A/AAC, Ogg Vorbis and Opus, and FLAC in all modern browsers. Formats such as WMA, AMR and some AIFF files are not supported by browsers.
Can I export MP3 instead of WAV?
Browsers have no built-in MP3 encoder, so the tool exports lossless WAV, which every editor, phone and messaging app can play or convert. WAV also avoids the quality loss of re-compressing an MP3.
How do I cut an exact part of a song?
Type the start and end times into the boxes — you can use minutes and seconds like 1:23.45 or plain seconds like 83.45 — then press Play selection to check it before exporting.
Why is my WAV file bigger than the original MP3?
MP3 and AAC are compressed formats, typically around 1 MB per minute, while WAV is uncompressed at about 10 MB per minute for CD-quality stereo. Choose mono or a lower sample rate if you need a smaller file.
Can I cut audio from a video?
Yes — first extract the soundtrack with Video to Audio, then open the resulting WAV here to trim it.