Trim any audio file down to the part you need — drag the start and end handles on the waveform, then export. Free with a DefyAudio account, and processed entirely in your browser.
Open the Audio Studio
Go to the DefyAudio Studio — the audio cutter runs in your browser.
Add your file
Drop in an MP3, WAV, FLAC, OGG, M4A or AAC file, or the audio of an MP4, MOV, MKV or WebM video. Its waveform appears in the Visual editor.
Set the start and end
Drag the two handles on the waveform until the selection covers exactly the part to keep. The Start and End times are shown to the hundredth of a second, and you can zoom in for precision.
Choose a format
In the Format tab, pick MP3, WAV, FLAC, OGG or AAC (.m4a). Add a fade-in or fade-out in the Levels tab if the clip should not start or stop abruptly.
Export
Export the trimmed clip. It is processed on your device and downloads straight away.
Start and end handles
Drag two handles on the waveform, zoom in, and read the exact Start and End times before you export.
Five export formats
Save the clip as MP3, WAV, FLAC, OGG or AAC (.m4a), with bitrate and sample-rate control.
Fade in and out
Up to 10 seconds of fade at either end, so the clip starts and finishes cleanly.
Cut into several parts
Need more than one piece? The Audio Splitter cuts a file at manual markers or at its silences.
An audio cutter lets you keep just the part of a track you actually need — a chorus, a sound bite, a ringtone hook, or the good take from a long recording. DefyAudio shows the full waveform so you can select the region visually, then export only that slice.
Because it runs locally in your browser, your file is never uploaded — useful for trimming voice memos, podcast segments or music clips you would rather keep to yourself.
Cutting and joining are two steps in DefyAudio, done with two tools. Trim each song or clip here, then add the trimmed files to the Audio Joiner, put them in order, and merge them into one track with a crossfade or a silence gap between them.
To cut one long file into several tracks at once — a live set, an album rip, a recording with pauses — use the Audio Splitter instead: place markers by hand, or let it find the silences, and every segment is exported as its own file.
Open DefyAudio's Studio, add your file, drag the handles on the waveform to select the part to keep, and export. It is free with a DefyAudio account (5 uses a day on the free plan) and the file is not uploaded.
Yes. Trim the track to a short section, add a fade if you like, and export as MP3, or as AAC (.m4a) for an iPhone.
The clip is re-encoded in the format you export. WAV and FLAC keep full quality; for MP3 you choose the bitrate, up to 320 kbps.
Yes. Trim each one here, then open the Audio Joiner, add the trimmed files in order and merge them, with a crossfade or a gap between tracks.
No — trimming happens entirely in your browser, so your audio stays on your device.