100% Free Tool
Audio Trimmer
Trim audio clips visually in your browser. Drag handles on a waveform timeline to set precise start and end points, then export instantly with lossless stream copy.
Drop an audio file, or click to browse
MP3, WAV, FLAC, AAC, OGG, M4A, OPUS, WebM — up to 2 GB
Why Use Our Audio Trimmer?
Cut any audio to the exact clip you need, entirely in your browser. No server uploads, no quality loss.
Waveform Visualization
See your audio as a visual waveform generated from the actual audio data. Drag green and red handles to set your clip boundaries with precision.
Instant Trim
Stream copy mode extracts your clip without re-encoding. This means near-instant results with zero quality loss, regardless of file size.
Complete Privacy
All processing happens locally using FFmpeg WebAssembly. Your audio never leaves your device - zero data sent to any server.
How to Trim Audio
Three simple steps to extract the exact clip you need.
Add Your Audio
Drag and drop or click to browse. Supports MP3, WAV, FLAC, AAC, OGG, M4A, and more - up to 2 GB.
Set Trim Points
Drag the start and end handles on the waveform, or type precise timestamps in MM:SS.s format. Preview the selected clip with the audio player.
Trim & Download
Click trim and download your clip. Stream copy mode delivers instant, lossless results. Compare original and trimmed file sizes.
Trimming Features
- Stream copy: Extracts the clip without re-encoding - instant and lossless regardless of audio length
- Format conversion: Optionally re-encode to MP3, WAV, FLAC, OGG, or M4A when you need a different format
- Waveform preview: Visual representation of your audio amplitude with draggable trim handles
- Precise timestamps: Enter exact start and end times in MM:SS.s format for sample-level accuracy
- No limits: No watermarks, no account required, and no rate limits
Frequently Asked Questions
Is my audio uploaded to a server?
No. All trimming happens in your browser using FFmpeg WebAssembly. Your audio never leaves your device, ensuring complete privacy.
What audio formats are supported?
MP3, WAV, FLAC, AAC, OGG, M4A, OPUS, and WebM audio. The tool accepts any audio file up to 2 GB that your browser can decode.
What is the difference between stream copy and re-encoding?
Stream copy extracts the audio data without re-encoding - it's near-instant and produces zero quality loss. Re-encoding is only needed when converting between formats (e.g., WAV to MP3) and takes longer since the audio must be decoded and re-encoded.
Will trimming reduce the audio quality?
Not with stream copy mode (the default). Stream copy extracts the exact audio data without any re-encoding, so there is zero quality loss. Quality changes only happen if you choose a different output format, which requires re-encoding.
What is the maximum file size?
The maximum is 2 GB, limited by WebAssembly memory constraints. Stream copy mode handles large files efficiently since it doesn't need to decode audio frames. For very large files, try our server-based audio converter.
Is this tool really free?
Yes, completely free with no limitations. Since all processing happens in your browser, there are no server costs. No watermarks, no account required, and no rate limits.
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