Audio Trimmer
Audio Trimmer lets you cut any audio file to a precise start and end timestamp, directly in your browser. Stream-copy mode delivers near-instant output with zero quality loss for most formats. No file is uploaded to any server — your audio never leaves your device.
Drag & drop your file here
or browse files from your device
Max size limit: 100 MB per file
Specifications
Guide
Upload your audio file
Drop an MP3, WAV, OGG, AAC, or FLAC file onto the upload zone, or click to browse. Files up to 100 MB are accepted.
Enter start and end timestamps
Type the start and end times for the section you want to keep. Use MM:SS or HH:MM:SS format (e.g. 0:30 to 1:45).
Trim and download
Click Trim. FFmpeg.wasm copies the selected audio range — no re-encoding for most formats. Download the trimmed file in your original format.
Key features
Precise timestamp control
Set start and end times to the second. Useful for removing intros, outros, or silence from podcasts and recordings.
Stream-copy trimming
When possible, the audio stream is copied without re-encoding - making the trim almost instant and quality-lossless.
Supports MP3, WAV, OGG, AAC, FLAC
Works with all the common audio formats you are likely to encounter.
Output matches input format
The trimmed file is saved in the same format as the original - no format conversion happens during trimming.
No upload or account
Everything runs in WebAssembly in your browser. Your files are never sent to any server.
Frequently asked questions
Yes, everything runs in your browser using FFmpeg.wasm. No file is uploaded to any server, no server ever processes your audio, and your file never leaves your device.
MP3, WAV, OGG, AAC, and FLAC. The output is saved in the same format as your input — no conversion happens during the trim.
Up to 100 MB per audio file. Trimming is fast because stream-copy skips re-encoding entirely for supported formats.
Yes, it works on any modern browser — desktop or mobile. Processing is done entirely in the browser tab, so no app install is needed.
Yes, completely free. No signup, no account, no watermark, and no daily quota. Just open the page and start using it.
Learn more
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