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Audio Trimmer

Precise, visual editing. All in your browser — nothing leaves your device.

MP3, WAV, OGG, M4A, AAC (≤ ~50MB recommended)

What is an Audio Trimmer?

Audio trimming is the process of cutting the beginning and end of an audio file—or carving out sections—to remove mistakes, dead air, or unwanted parts. It’s essential for podcasters, musicians, voiceover artists, students, and anyone who needs a fast, precise way to clean up audio clips.

With this online Audio Trimmer, everything runs in your browser. Your files never leave your device. You can visually select a range, preview just that selection, and export a clean WAV file instantly.

How to trim audio online (step‑by‑step)

  1. Upload your audio: drag and drop a file (MP3, WAV, M4A, OGG, more) or click “Choose File”.
  2. Mark the range: drag the blue handles to set Start and End.
  3. Preview the cut: press Play to listen only to the selected part.
  4. Add segments (optional): save multiple clips from the same source using “Add Segment”.
  5. Export: choose your format settings and export the selection or all segments.
  6. Download: your trimmed audio downloads immediately—no sign‑up required.

Best export settings for common use cases

  • Voice and speech: 128–192 kbps, 44.1 kHz, mono (smaller files, clear speech).
  • Music: 192–320 kbps, 44.1 or 48 kHz, stereo (richer fidelity).
  • Lossless editing: export WAV for the highest quality or further processing.

Editing tips for cleaner results

  • Trim on silence: choose natural pauses to avoid cutting into words or transients.
  • Use short fades: enable fade‑in/out to prevent clicks at cut boundaries.
  • Normalize peaks: turn on “Normalize” to raise overall loudness without clipping.
  • Keep a master: export a WAV copy before compressing to MP3/AAC.

FAQ

Can I edit very large files?
Browser memory can become a limit above ~100MB compressed or long (>30min) uncompressed WAV. Split before loading for best performance.

Why convert to WAV first?
Internally audio is decoded to PCM for editing; exports then re‑encode to chosen format.

Does trimming reduce quality?
Lossless formats (WAV) remain exact; lossy re‑encoding (MP3/AAC/OGG) applies compression again.

What does normalize do?
It scales audio so the loudest peak reaches safe maximum (near 0 dBFS) improving perceived loudness.

What counts as silence?
Samples below a threshold (e.g. −50 dBFS) for a sustained duration are removed when auto‑trim enabled.