Visual Audio Trimmer
Upload MP3 or WAV, drag regions over the waveform, and crop audio tracks effortlessly.
Upload Audio File
Drag & Drop your MP3, WAV, or OGG file here
What is this tool?
The Audio Cutter is an in-browser audio trimmer and slicer. Powered by WaveSurfer.js and the Web Audio API, it renders interactive audio waveforms, lets you select precise start and end trim regions with draggable boundary markers, previews the selection with real-time playback, and renders the sliced audio into an uncompressed WAV file.
How to trim and cut audio files online
- Drag and drop your audio file (MP3, WAV, OGG, AAC) into the upload area or click to select.
- Allow the audio engine to decode the track and render the interactive visual waveform.
- Drag the start and end region markers on the waveform to set your exact cut points.
- Press Play Region to preview the trimmed audio segment.
- Click 'Cut & Download' to render and download your trimmed WAV audio file.
Key Features
- Interactive visual audio waveform rendering powered by WaveSurfer.js
- Precision draggable region selectors for start and end trim timestamps
- Live audio playback preview of the selected region before cutting
- Client-side audio slicing powered by OfflineAudioContext
- Zero quality loss export into standard 16-bit PCM WAV audio format
- Supports popular audio formats including MP3, WAV, AAC, and OGG
Frequently Asked Questions
Are my audio files uploaded to a remote cloud server?
No. Your audio file is loaded as a local browser object URL and processed in your computer's RAM using the Web Audio API. Your audio never touches an external server.
What output format does the audio cutter produce?
The tool exports high-fidelity, uncompressed WAV (Waveform Audio File Format) files compatible with all audio editing software and media players.
Is there a file size limit for trimming audio?
Because files are processed directly in your browser's memory, standard audio tracks (under 100MB) process smoothly. Extremely large files may depend on your device's available RAM.
Can I create ringtones or podcast audio clips with this tool?
Yes. You can isolate any portion of a song, voice memo, or podcast episode and download the exact trimmed clip instantly.
Privacy First
100% Client-side processing. Your audio files are loaded and rendered entirely in your browser using the Web Audio API and are never uploaded to any server.