Audio Trimmer
Trim and cut audio files online for free. Remove unwanted parts from MP3, WAV, AAC, OGG files. No upload required - process locally.
Free audio trimmer. Cut MP3, WAV, AAC, OGG files with precise start/end times. Preview before cutting. 100% browser-based using FFmpeg.
- ✓ Trim MP3, WAV, AAC, OGG, and M4A audio files
- ✓ Set precise start and end times for cutting
- ✓ Preview selection before trimming
- ✓ Choose output format (MP3, WAV, AAC)
- ✓ 100% client-side - audio files never uploaded
How to Trim Audio Files
- 1 Upload your audio file by clicking or dragging it to the upload area
- 2 Set the start and end times using the time inputs or waveform
- 3 Preview your selection by clicking 'Play Selection'
- 4 Choose your preferred output format (MP3, WAV, or AAC)
- 5 Click 'Trim Audio' and download the trimmed clip
Frequently Asked Questions
How does browser-based video processing work? ▼
MagicKit uses FFmpeg compiled to WebAssembly (WASM). This brings professional video editing capabilities directly to your browser.
What video formats are supported? ▼
MP4, WebM, MOV, and AVI. Some tools also support MKV and other formats.
Is there a file size limit for videos? ▼
We recommend files under 500MB for optimal browser performance. Larger files will work but may be slower.
Why does video processing take time? ▼
Video encoding is computationally intensive. Processing happens on your device, so speed depends on your computer's capabilities.
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Last updated: January 15, 2026 · v2.1