Volume Booster & Normalizer
Boost a quiet file by a fixed gain, or auto-level to Spotify, YouTube and podcast loudness targets.
Drop your audio file here
or click to browse a file
Boost a quiet file, or normalize to a streaming-platform loudness target
Mode
+6 dB doubles perceived loudness. +10 dB is "much louder". Watch for clipping above +6 dB on already-loud files.
About this volume tool
Two operations in one page: a simple gain boost and a proper broadcast-grade loudness normalizer. Use boost when a file is just too quiet — say, a voice memo recorded too far from the mic. Use normalize when you want the output to match streaming-platform loudness so it doesn't get auto-attenuated on Spotify, YouTube or podcast players.
We don't analyse or index your file.
How to boost or normalize audio
- 01
Drop in audio
MP3, WAV, FLAC, OGG, M4A and other formats are accepted.
- 02
Pick boost or normalize
Boost adds a fixed gain in dB. Normalize hits a loudness target in LUFS.
- 03
Download the result
The processed file is offered as a download in seconds.
Why use this volume tool
- Boost gain from -10 dB up to +20 dB
- Broadcast-grade loudness normalizer (-14, -16, -23 LUFS presets)
- Output keeps the same format as the input
- Free, private, no install
- Free, no signup, no watermark
- Great for voice memos, podcasts and music masters
Volume booster FAQ
Boost vs. normalize — which should I pick?
Boost when one specific file is too quiet and you just want it louder. Normalize when you want the file to match a platform target (Spotify is -14 LUFS, podcast standard is -16 LUFS mono / -19 stereo).
Will boosting cause clipping?
It can, if the file is already near full scale. The tool warns you when the requested gain would push the peak above 0 dBFS. Prefer normalize when you want loudness without distortion.
What is LUFS?
Loudness Units relative to Full Scale — the modern, ear-weighted way to measure loudness. Streaming platforms use it to keep tracks at consistent volume; matching their target keeps your audio from being turned down.
Is the audio re-encoded?
Yes — applying gain or loudness normalization requires re-encoding. The output uses the same format as the input at a sensible quality default.
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