DocFixer

Audio Trimmer

Upload any audio file, set your trim points on the waveform, preview and download — 100% in your browser.

Drop your audio file here

or click to browse your device

MP3 WAV OGG M4A FLAC AAC

Your audio is processed entirely in your browser — never uploaded to any server.

0:00 0:00
Start Time
End Time

Selected duration:

Speed:

Export Trimmed Audio

Output Format

Format support depends on your browser. WAV is universally supported.

Processing…

How to Use

  1. Upload – Drop or select any audio file (MP3, WAV, OGG, M4A, FLAC…).
  2. Set trim points – Drag the handles on the range slider or type exact times in the Start / End fields.
  3. Preview – Hit Play to hear the full track, or Preview Trim to hear only the selected region.
  4. Download – Click Trim & Download and choose your output format.

Everything is processed locally — your audio never leaves your device.

Features

  • Visual waveform for precise trimming
  • Drag-and-drop range handles
  • Manual start / end time inputs (ms precision)
  • Instant in-browser preview of selected region
  • Supports MP3, WAV, OGG, M4A, FLAC, AAC and more
  • Playback speed control (0.5× – 2×)
  • Volume control
  • 100% client-side — zero privacy concerns

Why Use This Tool?

Private & Secure

Your audio file is never sent to any server. All trimming happens entirely in your browser using the Web Audio API.

Fast & Precise

Set trim points to millisecond accuracy using the waveform visualizer or manual time input fields.

Free Forever

No sign-up, no watermarks, no limits. Perfect for podcasters, musicians, content creators and students.

Frequently Asked Questions

✂️ What audio formats does it support?
You can upload MP3, WAV, OGG, M4A, FLAC, AAC, WebM and any other format your browser can decode. WAV is the most universally supported output format.
🔒 Is my audio file kept private?
Yes. The tool uses the browser's built-in Web Audio API. Your file is never uploaded to any server — it stays entirely on your device.
📏 Is there a file size limit?
There is no imposed limit. Very large files are limited only by your device's available memory and browser capability.
🎵 Can I preview before downloading?
Yes! Click Preview Trim or the scissors button to play only the selected region before you download it.
⏱️ How precise can my trim points be?
You can enter start and end times accurate to the millisecond using the text input fields below the waveform.
📱 Does it work on mobile?
Yes! The interface is fully responsive. The Web Audio API is supported on all modern mobile browsers including Chrome and Safari on iOS.