Remove silence from audio
Find and cut the silent gaps in an audio file. Free, and nothing is uploaded.
Drop an audio file here, or click to browse
MP3, WAV, M4A, OGG, or FLAC — up to 2GB
A silence remover you can tune
Cuts every gap, not just the ends
Silence is removed from the start, the end and everywhere in between, then the remaining audio is joined back together.
You set what counts as silence
A threshold slider (-60 to -20 dB) and a minimum gap length let you tune it for a quiet podcast or a noisy room.
Shows how much time you saved
The result card shows the before and after length so you can see exactly how much silence was cut.
Same format in and out
MP3 stays MP3, WAV stays WAV.
Listen before you download
The trimmed audio plays right on the page, so you can check the cuts first.
Your audio stays on your device
Everything runs locally through ffmpeg.wasm. No upload, no account, no watermark.
Silence gone in three steps
- 1
Add an audio file
Drag an MP3, WAV, M4A, OGG, or FLAC file onto the page or click to browse. The file stays on your device.
- 2
Set what counts as silence
Pick a silence threshold in decibels (anything quieter is silence) and the shortest gap worth cutting. The defaults, -40 dB and 0.5 seconds, suit most voice recordings.
- 3
Press Remove silence, then download
Every quiet gap that meets your settings is cut out and the rest is joined back together. Play the result on the page, compare the before and after length, then download it.
What people remove silence for
Dead air makes recordings longer and harder to listen to. Cut it in seconds, without opening an audio editor.
Tighten podcasts and interviews
Cut dead air and long pauses between speakers so an episode runs shorter without a manual edit.
Clean up voice recordings
Strip the gaps from voice memos, lecture recordings, dictation and voiceovers before sharing or transcribing them.
Shorten files before transcription
Removing silence first makes the file shorter, which can mean less to review and less to pay for with per-minute transcription services.
Trim samples and sound effects
Remove the empty stretches from a recorded sample or sound effect so only the sound itself is left.
Frequently asked questions
How does the tool decide what is silence?
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It uses ffmpeg's silenceremove filter. A stretch counts as silence when its peak level stays below your threshold (-40 dB by default) for at least the minimum gap length (0.5 seconds by default). Only stretches that meet both conditions are cut, so short natural pauses between words stay.
Why does some of my audio sound clipped after removing silence?
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The threshold is probably too high, so quiet speech or a soft word ending was treated as silence. Move the threshold toward -60 dB and run it again.
Why is nothing removed from my file?
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Either the recording has no gaps that long, or background noise sits above the threshold so it never counts as silence. Raise the threshold (toward -20 dB) or shorten the minimum gap and try again.
What happens if everything counts as silence?
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The tool tells you instead of handing back an empty file. Lower the threshold toward -60 dB and run it again.
Does it change the format or quality of my audio?
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The format stays the same: an MP3 comes back as an MP3, a WAV as a WAV. Cutting changes the content, so the file is re-encoded once. For lossless sources (WAV, FLAC) that costs nothing audible. For lossy ones (MP3, M4A, OGG) it is one extra generation of compression, usually inaudible.
Can I remove silence from a video?
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Not on this page, which handles audio files only. If you have a video, extract its audio with the MP4 to MP3 tool first, then remove the silence from that.
Does my audio get uploaded to a server?
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No. ffmpeg.wasm runs the whole job inside your browser tab, so there is no upload wait, no queue, and no copy of your file anywhere else.
Cut the silence from your audio now
Free, private, no account needed.