Remove silence from audio
Cut the dead air off a recording, or tighten the gaps throughout.
- Runs on your device — the file is never sent anywhere
- No sign-up, no watermarks, no daily quotas
- Free, with no limit on how often you use it
How it works
Almost every recording begins with someone reaching for the stop button and ends the same way. Trimming that dead air is the first edit anyone makes to a voice memo, an interview or a podcast take.
Start and end, or everywhere
Trimming the start and end is safe: it removes only the silence before the first sound and after the last, and nothing inside changes. Removing gaps everywhere also closes the pauses in the middle, which tightens a rambling recording considerably but changes the rhythm of speech.
The threshold matters
Silence is defined by a level, not by true nothing. −40 dB treats room tone and faint hiss as silence, which is usually right. −50 dB only cuts near-total silence and will leave noisy gaps in place. −30 dB is aggressive and can clip the quiet beginnings of words.
Why aggressive trimming sounds wrong
Natural speech has pauses that carry meaning. Removing all of them produces something that is technically shorter and noticeably harder to listen to. If the result sounds breathless, go back to trimming the start and end only.
It re-encodes
The result is an MP3 at 192 kbps, because cutting the waveform means writing a new file.
Remove silence from audio — questions
Will it cut pauses in the middle?
Only if you ask it to. The default trims the start and end only.
What threshold should I use?
−40 dB suits most recordings. Use −50 dB if there is background noise you want kept.
Why does the aggressive setting sound odd?
Removing every pause changes the natural rhythm of speech. Trim the start and end instead.
Is my recording uploaded?
No. It is processed in your browser.