How to Cut an MP3 File Online
Cutting an MP3 allows you to snip out an unwanted section — such as a mistake, long silence, or cough — and seamlessly join the remaining pieces together.
To cut a section out of an MP3: 1. Load the file in OnlineAudioEdit. 2. Highlight the unwanted part on the waveform. 3. Click 'Cut' (or press Delete). 4. Export the joined audio.
Open Cut MP3 Tool →Detailed Instructions
Step 1: Import Your Audio
Drag your MP3 into the [Cut Audio Tool](file:///tools/cut-audio/) to load the visual waveform.
Step 2: Locate the Section to Remove
Play through your recording and zoom in on the cough, stutter, or mistake you want to remove.
Step 3: Highlight and Cut
Drag to highlight only the error, then click the 'Cut' button. The section disappears and the timeline snaps together.
Step 4: Preview & Export
Press Play to verify the seamless transition, then click Export to download your clean file.
Try It Now: Free Online Audio Tool
Upload your audio file directly below to follow along with this guide:
Drop your audio file here to start
Supports MP3, WAV, M4A, AAC, FLAC, OGG, OPUS, WEBM • Free • No File Size Limit
Expert Tips & Best Practices
- Cut at zero-crossing points (where the waveform line crosses the center horizontal line) to prevent clicks.
- You can make dozens of sequential cuts in a single session without reloading.
Frequently Asked Questions
Can I undo a cut if I cut too much?
Yes! Press Ctrl+Z (or Cmd+Z on Mac) to undo any cut immediately.