Is your audio file too quiet? Use our Volume Booster to amplify the sound up to 300% or lower it if it's too loud.
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Audio Volume Adjuster
Increase or decrease audio volume online. Boost quiet recordings up to 300%. Free tool. Fast, free, and 100% private. All processing happens locally.
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Select files or drag & drop here
Processed 100% locally in your browser. Your files never touch an external server.
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100% Client-Side Privacy•No File Size Limits•Free Forever
About Audio Volume Adjuster
FusioFiles 100% Client-Side Privacy Guarantee
Your files and data never leave your browser — processed directly on your device.
Zero Server UploadsExecution occurs entirely in browser memory via WebAssembly and HTML5 Canvas.
HIPAA & GDPR ReadySafe for confidential tax forms, medical records, financial sheets, and legal contracts.
Zero Cloud LatencyInstant results with no upload delays, server queues, or third-party tracking.
Automatic RAM PurgeBuffers and caches are automatically wiped clean the instant you close the tab.
1
Upload Audio
Select the recording or track you want to adjust.
2
Set Gain
Increase or decrease the decibel level using the gain slider.
3
Save Changes
Download the modified audio file with the correct volume.
Key Features
Boost Volume
Amplify quiet recordings by up to 300%.
Mute Mode
Completely silence sections of the track.
Real-time Processing
Hear the volume changes instantly.
Secure & Private
Your audio files never leave your device.
Frequently Asked Questions
Extreme boosting (like 300%) can cause clipping or distortion. We recommend small adjustments first.
Yes, completely free. No account, subscription, or hidden fees — ever.
Yes. All processing runs directly in your browser — nothing is ever uploaded to a server.
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