Free online audio trimmer with waveform display. Cut MP3, WAV, OGG, FLAC files with precise timestamps. Add fade effects, preview before export, and download in multiple formats. All processing happens in your browser.
Upload Audio
MP3, WAV, OGG, FLAC, M4A supported
Drag & drop or click to browse
Max: 50 MB (Supporters: 200 MB)
Tool Notes is a Supporter feature.
Drag and drop your audio file or click to browse. Supported formats: MP3, WAV, OGG, FLAC, M4A.
Drag the start and end markers on the waveform, or enter precise timestamps in the input fields.
Click the preview button to listen to your selected portion before finalizing.
Enable fade in/out effects to smooth the cut transitions.
Choose your output format and download the trimmed audio file.
The waveform is generated using the Web Audio API's AnalyserNode, which processes the audio data to create a visual representation of amplitude over time. This helps you identify silent sections, loud peaks, and natural break points.
Audio trimming uses FFmpeg WASM (WebAssembly), the same powerful tool used by professional video editors. It performs sample-accurate cuts without re-encoding the entire file, preserving audio quality.
Fade effects are applied using audio filters that gradually increase (fade in) or decrease (fade out) the volume at cut points. This prevents audio clicks and creates smooth transitions.
This tool processes everything locally in your browser using WebAssembly. Your audio files are never uploaded to any server. You can even use this tool offline after the page loads.
Files up to 500MB can be processed. Larger files may work but could be slower depending on your device's memory.
