Trim Audio
Cut audio with a real waveform view. Add fades and export to any format.
How to trim audio
- Drop an audio file or a video file — the audio track is extracted automatically.
- Drag the waveform handles to set the in and out points, or click to place the playhead and type a timestamp.
- Toggle fades if you need the clip to ease in or out, then export.
About this tool
A waveform editor is the right tool for audio trimming because you can see where the signal is. Silence looks flat; speech and music show clear peaks. Placing an in-point just before the first transient of a word is something you can do by eye in a fraction of a second — typing a timestamp and hoping it lands right is slower and less accurate.
The ringtone use case is specific enough to mention directly. M4R is just a renamed M4A container, but iPhones enforce a 40-second cap and refuse to import files renamed manually from M4A. This tool generates proper M4R output at whatever duration the waveform cut gives you, which is what makes it work. The 40-second limit is enforced at export — if your clip is longer the export button will warn you before trying.
Fades matter more than people expect for short clips. A voice recording that starts at full volume with no fade-in often has a click at the very beginning — a fraction of a millisecond of silence before the audio engine reacts. A 50-millisecond fade-in eliminates this without being audible as a fade. Fade-out on speech prevents the abrupt silence that feels like a cut rather than an ending.