About this tool
About Audio Cutter
Cut a section from an audio file by choosing its start and end times. zer.ai creates a new MP3 locally in your browser and lets you preview it before downloading.
This tool is available for browser processing. The main operation runs on your device when supported by the browser and selected format.
When to use this audio cutter
Use an audio cutter to remove unwanted silence, isolate a sound effect, shorten a voice recording or create a clip for a video or podcast. Time-based trimming is useful when you need a clean segment rather than a full multitrack edit.
How to use this tool
- Add an audio file and wait for its duration or waveform to load.
- Move the start and end points to define the section to keep.
- Preview the selection and adjust the boundaries until the edit sounds natural.
- Export the clip, then check its beginning, ending and playback before sharing it.
Output and privacy
The exported audio can differ from the source because of its codec, sample rate, channels and selected bitrate. Keep the original until the result is checked. Supported processing runs locally in your browser when available, so the source does not need to be uploaded.
Related audio tools
Use Audio Mixer when several clips need arranging, Audio Compressor when the file is too large, or Audio Speed Changer when timing—not the selected content—is the problem.