Silence Remover — Remove Silence from Audio, Online Free
Drop the dead air. Keep the breaths that are shorter than the gap you set.
Drop an audio file, or click to browse
MP3, WAV, M4A, OGG, FLAC, and more
Processed locally — your file never leaves this tab
00:00.00 / 00:00.00
This finds stretches quieter than the threshold and longer than the minimum gap, then cuts them. The default threshold is −40 dBFS, which suits speech and voice memos. Each cut keeps 0.08 seconds at both edges so a word is not clipped. A pause shorter than the gap stays. Quiet music and fading tails sit under −40 dBFS and will be cut too — draw the part you want on the audio trimmer instead. If the whole file is under the threshold, the export is the original file. Processing stays in your browser.
Where the dead air actually is
- Tighten a voice memo or a podcast take that has long pauses between sentences.
- Strip the silence from a lecture without trimming each gap by hand.
- Clean a recording before you export, and leave the short breaths in place.
How to use the Silence Remover
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Drop your audio
Any MP3, WAV, M4A, OGG or FLAC file. It is decoded on your device.
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Set the threshold and the gap
Threshold is how quiet a stretch must be, from −60 to −20 dBFS. Minimum gap is how long it must last before it is removed, from 0.1 to 2 seconds. The status line shows about how many seconds will go.
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Export
Play the original to check it, then export MP3 or WAV. The file is the loud parts joined together, with 0.08 seconds kept at each cut.
It cuts long quiet stretches, not breaths
A stretch is removed only when it is quieter than the threshold and longer than the minimum gap. The default is −40 dBFS and 0.35 seconds. Each cut keeps 0.08 seconds at both ends so the join does not click.
Shorter gaps, including most breaths, stay. What remains is not made louder, slower, or higher. If the whole file sits under the threshold, nothing is cut and the export is the original file.
Speech, not a quiet song
−40 dBFS is aimed at speech. Music will lose the parts you meant to keep if they sit that low:
- A voice memo or interview with long pauses between answers.
- Raise the threshold toward −20 dBFS if you only want near-digital silence gone.
- A fade, a quiet bed, or room tone in a mix: leave this page and trim by hand.
Trimmer versus this page
The audio trimmer and the MP3 cutter keep a region you draw. This page finds every long quiet stretch by level and removes them in one export.
Use the trimmer when the quiet part is something you still want, or when you need to keep one span and drop the rest by ear. Use this page when the pauses are the problem and they are long enough to measure.
Silence Remover FAQ
Is my audio uploaded?
No. The level is measured in your browser and the quiet stretches are cut in memory. After the page loads you can go offline and it still exports.
What does it actually remove?
A stretch is removed only when it is quieter than the threshold and longer than the minimum gap. The default is −40 dBFS and 0.35 seconds. Each removed stretch keeps 0.08 seconds at both ends. Shorter gaps, including most breaths, stay.
Will it cut quiet music?
Yes, if the music stays under the threshold for longer than the gap. −40 dBFS is for speech. A quiet bed, a fade, or room tone in a music mix will be treated as silence. Raise the threshold toward −20 if you only want the near-digital zeros gone, or use the audio trimmer and select by hand.
What if the whole file is quiet?
Nothing is cut. The status line says so, and the export is the original file.
How is this different from the trimmer?
The audio trimmer and the MP3 cutter keep a region you draw on the waveform. This page finds long quiet stretches by level and removes all of them in one export. It does not change speed, pitch, or loudness of what remains.
Does it work on a phone?
Yes. Both sliders and the export button work with touch in current Chrome, Edge, Firefox and Safari.
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