Explore our collection of 150+ developer tools, PDF editors, and image converters. Everything runs locally in your browser.
Ubify Core Engineering Team
SOFTWARE ENGINEERS & SYSTEMS ARCHITECTS
About This Tool
The MP3 Cutter trims and extracts audio segments from local audio recordings, sound clips, and music tracks directly in your web browser. Select an audio file from your device or test the tool using a synthetic sample audio track. The tool decodes the audio file using the Web Audio API and displays the full track duration in seconds.
Set your desired segment start time and end time using the numeric input fields or range sliders. Clicking Cut Audio extracts the selected time window, slices the underlying PCM audio buffer frames, and renders a clean trimmed audio file ready for instant playback or download. All audio decoding, buffer slicing, and audio rendering happen entirely inside your local browser memory. No audio files or voice recordings are ever uploaded to an external server.
How to Use
- 1
Click Upload Audio File to select an MP3 or audio track from your device.
- 2
Enter or adjust the Start Time and End Time in seconds for your desired clip.
- 3
Click the Cut Audio button to process the audio slice in browser memory.
- 4
Audition the trimmed result in the audio player and click Download Trimmed Audio.
Frequently Asked Questions
Which audio formats are supported for cutting?
The tool supports standard browser-decodable audio formats including MP3, WAV, OGG, and AAC files.
Does trimming compress or degrade the audio quality?
No. The cutter slices the raw decoded PCM audio frames at the specified sample rate, preserving original fidelity in the rendered audio output.
Are my audio recordings uploaded to any cloud server?
No. All decoding, slicing, and rendering run 100% on-device in your client browser using Web Audio APIs.