MP3 Cutter
Trim audio files to the exact length you need. Output is WAV format.
What is MP3 Cutter?
Cutting audio lets you extract the exact portion of an audio file you need — a favorite chorus, a podcast segment, a ringtone clip, or a voice memo excerpt. Our cutter uses the Web Audio API to decode and trim audio with sample-level precision, then renders the selection as a WAV file. You can preview the selection before cutting to make sure the start and end points are exactly right. The entire process runs in your browser, so your audio files are never uploaded anywhere.
How to Use
- 1Upload an audio file (MP3, WAV, OGG, M4A).
- 2Use the start and end sliders to select the portion you want to keep.
- 3Click the play button to preview your selection.
- 4Click "Cut Audio" and download the trimmed audio file.
Why Use This Tool
- ✓Create ringtones — extract a short clip from your favorite song for a custom phone ringtone.
- ✓Edit podcasts — remove intro/outro music or trim dead air from the beginning and end of a recording.
- ✓Extract highlights — pull the best moments from a long lecture, interview, or voice memo for easy sharing.
Frequently Asked Questions
Why is the output in WAV format instead of MP3?⌄
The Web Audio API processes audio as raw PCM data and our encoder renders it as WAV, which is uncompressed and universally supported. WAV files are larger than MP3s but preserve full quality. You can convert the WAV output to MP3 using our Audio Converter tool if you need a smaller file.
Can I cut audio without losing quality at the cut points?⌄
The cutter operates at the sample level, so the cut is precise to the fraction of a millisecond. There is no crossfade at the cut points, which means the audio starts and ends abruptly at the exact positions you select. For smooth transitions, you would need a dedicated audio editor with crossfade capabilities.
What audio formats can I upload?⌄
You can upload MP3, WAV, OGG, M4A, AAC, and FLAC files. The Web Audio API decodes these formats in your browser. The output is always WAV regardless of the input format, since the tool re-encodes the selected portion from the decoded audio buffer.
Can I preview the selection before cutting?⌄
Yes. After uploading, a play button lets you listen to the selected portion. The playback starts from your chosen start time and stops at the end time, so you hear exactly what the cut result will sound like before committing.