Volume Booster
Boost or reduce the volume of any audio file by up to ±24 dB, with an optional limiter so loud parts never clip.
How to use
Drop an audio or video file.
Adjust the sliders and press Preview to hear it.
Apply the effect and download your track.
About this tool
The booster applies gain and, if enabled, a fast look-ahead limiter that keeps peaks below 0 dBFS so the result stays clean.
All processing happens locally in your browser, ensuring complete privacy for your recordings and music.
Frequently asked questions
Are my files uploaded?
No. AudioCharger processes everything inside your browser. Your files never leave your device and nothing is stored on a server.
Is it free?
Yes. Every AudioCharger tool is free, with no sign-up, no watermark and no file limits beyond your device's memory.
Which formats can I save as?
MP3, WAV, FLAC, M4A (AAC) and OGG (Opus). MP3 is selected by default.