Audio Trimmer

Trim any audio segment with precision, no installation required

The Audio Trimmer uses the browser's Web Audio API to decode and cut audio files directly on your device. Select the start and end points visually on the waveform or type exact times in the input fields. The exported file is a lossless WAV, preserving the original quality of the selected segment.

Three steps to trim your audio

1. Open or drag an audio file (MP3, WAV, OGG, FLAC, AAC, or M4A).
2. Adjust the green region on the waveform to define the start and end, or edit the time fields manually.
3. Click "Download trimmed audio" to save the selected segment in WAV format.

Sources and references for this tool

These references help contextualize formulas, standards, APIs and limitations used on this page. They do not replace professional validation when a result has legal, financial, medical or operational impact.

• AudioBuffer — Web APIsMDN Web Docs — Interface representing a decoded audio buffer in memory — foundation of sample-level trimming.
• BaseAudioContext.decodeAudioData() — Web APIsMDN Web Docs — Asynchronous method that decodes compressed audio data into an AudioBuffer.
• Web Audio API — Web APIsMDN Web Docs — Specification for the native audio processing API in modern browsers.

Frequently asked questions

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