Background analysis
Silence detection and waveform drawing stay off the page main thread.
Private browser editor
Remove Silence from Audio
Automatically find quiet gaps in recordings, podcasts, and voice notes, then remove them with a visual waveform and local WAV export.
Sem uploadMediaBunny Worker processingExport WAV, MP3, M4A, or FLAC
Natural joins
Padding is retained around cuts and tiny fades soften each join.
Choose your format
Baixar a lossless master or a arquivo menor ready to share.
Step 1
Add your recording
Drop one audio file here, or browse your device. Everything is processed locally.
Audio silence removal guide
Which audio formats are supported?
Read common MP3, WAV, M4A, AAC, FLAC, OGG, and Opus audio files. Decoding ultimately depends on the codec inside the file and browser support; export as WAV, MP3, M4A, or FLAC.
MP3
A common format for music, recordings, and sharing.
WAV
Uncompressed PCM for editing and preserving detail.
M4A / AAC
A practical fit for phone recordings, Apple devices, and efficient sharing.
FLAC / OGG / Opus
Useful for lossless archives or web and voice workflows.
How to remove silence from audio online
No install or upload is needed. This tool detects sustained quiet sections, draws the waveform, and makes a new file in a Worker in your current browser.
- 01
Add one audio file
Drop in a file or browse your computer or phone. It is never uploaded to a server.
- 02
Choose a detection preset
Speech/podcast keeps natural pauses; meeting/interview removes empty gaps more actively.
- 03
Fine-tune and review the waveform
A higher threshold finds more quiet sections. Minimum silence and padding help preserve short, natural pauses.
- 04
Preview and download
Review the gray sections and projected time saved, choose an output format, and download the result.
Common use cases
Removing silence makes content more concise, but should not replace meaningful pauses. Keep the original file and listen to the exported result before publishing.
Podcasts and solo narration
Clean up thinking, page-turning, or recording gaps for a tighter speaking pace.
Meetings and interviews
Shorten long stretches with no speaker, equipment changes, or waiting.
Online courses and tutorials
Remove empty moments between explanations so learners can move through the material faster.
Voice notes and transcription prep
Reduce time without content before transcribing, editing, or sharing a recording.
Your file is processed only no seu dispositivo
After you choose a file, MediaBunny reads, decodes, analyzes, and encodes it on demand in a browser Web Worker. Source audio is never sent to MediaKit servers; clearing the file, closing the page, or cancelling a job releases the Worker and local object URLs.
FAQ
Audio silence removal FAQ
Are my audio files uploaded?
No. Detection and export happen in the browser on this device, so the file never leaves your device.
What do threshold, minimum silence, and padding mean?
Threshold defines how quiet a section must be. Minimum silence avoids cutting short pauses. Padding keeps a little time on each side of a cut so speech sounds more natural.
Why was no silence found?
Room noise may be above the current threshold. Move the threshold toward -15 dB or use a shorter minimum silence and try again.
Why is almost all audio removed?
The threshold may be too high or padding too low. Start again from the Speech/podcast preset, then adjust gradually.
Should I choose WAV, MP3, M4A, or FLAC?
Choose WAV or FLAC for more editing, MP3 for most sharing and uploads, or M4A for Apple and mobile playback. MP3 and M4A are lossy, so keep the source file.
Can I use it on a phone?
Yes. Use a recent browser, keep the page open for longer files, and leave enough free memory on the device.
Keep working with audio
Related tools and tutorial
Trim audio
Manually remove specific sections or set exact start and end points.
OpenNormalize audio volume
Balance a narration, podcast, or meeting recording after silence removal.
OpenFade audio
Add a smooth transition at the beginning, end, or a manual edit point.
OpenHow to remove silence from a recording
Learn about thresholds, speech pauses, and output formats.
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trim-audio
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Normalize MP3, WAV, M4A, AAC, FLAC, OGG, and Opus audio online with music, podcast, and broadcast loudness targets, peak protection, local browser processing, and MP3, M4A, FLAC, or WAV export.
Audio Fade In & Out
Add smooth fade-in and fade-out transitions to MP3, WAV, M4A, AAC, FLAC, OGG, and Opus audio with an interactive waveform. Process privately no seu navegador and export WAV, MP3, M4A, or FLAC without uploading.