At a glance
- Cost
- 100% free, no account
- Silence finder
- Automatic, threshold from −60 dB to −30 dB
- Precise edges
- Type the exact start and end
- Fades
- In and out, up to 5 s each
- Saves
- MP3 or WAV
- Privacy
- Stays on your device
How to trim a recording
- Open your recording: a voice memo, meeting, podcast take, song or sample.
- Press Auto-trim silence. The edges snap to the first and last moments of real sound. Adjust the threshold if your room was noisy.
- Fine-tune if needed by dragging the handles or typing exact times.
- Add fades and save as MP3 or WAV.
How silence detection works
The trimmer walks through the recording in 10-millisecond windows and checks the loudest sample in each one. Anything quieter than your chosen threshold counts as silence. The first and last windows that pass the test become the new start and end, with a 50 ms safety margin so the first syllable isn't clipped.
| Threshold | Behaviour | Best for |
|---|---|---|
| −60 dB | Only removes near-digital silence | Studio music, clean exports |
| −45 dB | Removes typical quiet room tone | Most voice recordings (default) |
| −30 dB | Also removes hiss, hum and breaths | Phone and laptop-mic recordings |
Why trim your audio?
- Podcasts and voice-overs feel tighter when they start on the first word.
- Samples and sound effects need to fire instantly when triggered.
- Playlists flow better without long gaps between songs.
- Voice messages are shorter and smaller once the fumbling at the start is gone.
Need to delete something in the middle of a file instead? That's a job for the Audio Cutter's Remove selection mode.
Common questions
Can it remove pauses in the middle of a recording?
No. The trimmer only shortens the beginning and the end. Use the Audio Cutter to take out pauses in between.
What if auto-trim cuts too much?
Choose a lower threshold, such as −60 dB, and run auto-trim again, or drag the handles outward by hand.
Why add a fade?
A short fade prevents an abrupt start or stop, which can sound like a click, especially when music is cut mid-note.
Is the audio trimmer private?
Yes. Everything runs in your browser, so the file never leaves your device.