UnQTools
Audio Runs in your browser

Audio Trimmer

Trim audio files to a start/end range entirely in the browser. Drag-and-drop or pick a file, decode with Web Audio API, set start/end timestamps (MM:SS.ms, HH:MM:SS, or seconds), apply fade in/out (5 presets), and re-encode as a 16-bit PCM WAV (pure-JS encoder — no library). Multi-format time parser, sample-range calculator, 44-byte RIFF WAV header builder, file-size estimator, trim validation, crossfade calculator, audio preview before/after, history (localStorage), shareable URL, summary stats (original duration, trimmed duration, % removed, output size). 100% client-side.

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Trim audio files to a start/end range entirely in the browser. Drag-and-drop or pick a file, decode with Web Audio API, set start/end timestamps (MM:SS.ms, HH:MM:SS, or seconds), apply fade in/out (5 presets), and re-encode as a 16-bit PCM WAV (pure-JS encoder — no library). Multi-format time parser, sample-range calculator, 44-byte RIFF WAV header builder, file-size estimator, trim validation, crossfade calculator, audio preview before/after, history (localStorage), shareable URL, summary stats (original duration, trimmed duration, % removed, output size). 100% client-side. Everything runs locally in your browser — your data never leaves your device.

How to use

  1. Enter your input in the tool above.
  2. Adjust any options to your preference.
  3. Use the Copy or Download buttons to save the result.
  4. Everything happens locally — your data never leaves your browser.
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