Audio

Audio trimmer

Trim the start and end of any audio file to precise timestamps. Runs entirely in your browser.

Drop your audio file here, or

MP3 · WAV · OGG · AAC · FLAC · M4A · Max 100 MB

Specify start and end times. Format: m:ss or h:mm:ss

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100% private. All processing happens locally in your browser — no files or data are ever sent to a server.

How to use Audio trimmer

  1. 01 Drag and drop your audio file onto the upload area, or click to browse
  2. 02 Choose your settings (format, quality, timestamps, etc.)
  3. 03 Click the action button — the engine loads on first use, then processes your file
  4. 04 Click Download to save the result to your device

Frequently asked questions

Common questions about Audio trimmer.

Is Audio trimmer free to use?
Yes, Audio trimmer is completely free. No account, subscription, or payment is ever required — just open the page and start using it.
Does Audio trimmer upload my data to a server?
No. Audio trimmer runs entirely in your web browser using client-side JavaScript. Your files, text, and data never leave your device, making it 100% private.
Can I use Audio trimmer on my phone or tablet?
Yes. Audio trimmer is fully responsive and works on all modern smartphones, tablets, and desktop browsers without installing any app.
Are my audio files kept private?
Yes. Audio trimmer processes all audio entirely in your browser using ffmpeg.wasm (a WebAssembly build of FFmpeg) or the Web Audio API. Your files are never uploaded to any server.
Why does it take a moment to start the first time?
The audio engine uses ffmpeg.wasm, a ~30MB WebAssembly library that loads on demand — only when you click the action button. Once loaded, subsequent operations are instant. It is not loaded on page arrival to protect page speed.

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About Audio trimmer

Audio trimming removes unwanted sections from a recording — cutting silence from the start, removing a long intro or outro from a podcast clip, or isolating a specific musical phrase. The Audio Trimmer lets you set precise start and end times and exports the trimmed audio using ffmpeg.wasm for accurate cut points without re-encoding artifacts (when using stream copy). Supports MP3, WAV, OGG, AAC, and FLAC input. All processing runs locally in your browser — nothing is uploaded.

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