How to Trim MP3 Files
A step-by-step guide to trimming MP3 files using a free browser-based audio editor.
Step 1: Open the Audio Cutter
Go to cut.audio and open the Audio Cutter tool. No download or account needed.
Step 2: Load Your MP3
Drag your MP3 file onto the page, or click to browse your files. The audio loads instantly and the waveform appears. You'll see the full audio visualized — peaks represent loud sections, flat areas represent silence.
Step 3: Set Start and End Points
Drag the left handle to set where the audio should start. Drag the right handle to set where it should end. Everything outside these markers will be removed. Use the zoom controls to get precise. Click Play to preview your selection and make sure it sounds right.
Step 4: Export
Click Export and choose your output format: • MP3 — smaller file, good for sharing • WAV — full quality, good for further editing • FLAC — full quality, smaller than WAV • OGG — good quality, small file size The trimmed file downloads to your device. Done.
Tips for Better Trims
• Zoom in to find exact cut points — especially important for music where you want to cut on a beat • Use the waveform to identify silence — trim it from the start and end for cleaner files • Preview before exporting — a 1-second misplacement can ruin a trim • Export as WAV if you plan to do more editing later — re-encoding MP3 multiple times degrades quality
Try it now — free in your browser
No download. No signup. Your files never leave your device.
Open Audio CutterFrequently Asked Questions
The cutter lets you select any section of the file. Set your start and end points to isolate any part — beginning, middle, or end.
Very precise. The waveform editor lets you zoom in and place markers with millisecond accuracy. This is more than enough for any practical use case.