Change your audio's volume, free
Turn a track up or down, normalize to peak, or convert mono↔stereo — then download a WAV. Free, private, right in your browser.
Drop an audio file here or click to add
MP3, WAV, FLAC, M4A
Why adjust volume in a dedicated tool
Sometimes a track is just too quiet or too loud, or it's mono when you need stereo (or vice versa). Doing this in a full DAW is overkill; a quick browser tool that adjusts gain, normalizes, and swaps channels — then hands you a clean WAV — is faster for a one-off fix, and it never uploads your file anywhere.
Gain vs. normalize
A gain slider changes the volume by a fixed amount in decibels — useful when you know exactly how much louder or quieter you want it. Normalize instead finds the loudest peak in the track and raises the whole thing so that peak sits just below clipping, giving you the maximum clean volume automatically. Use gain for a precise nudge, normalize when you just want it as loud as it can safely go.
Mono and stereo conversion
Converting to mono averages the left and right channels into one — handy for voice recordings or when a tool expects a single channel. Converting mono to stereo simply duplicates the channel so the file has the two-channel structure some players and platforms require. Neither adds information the source didn't have; they just repackage it.
How to change audio volume
Drop a file, set your options, export. Everything happens locally in your browser — your audio is never uploaded.
1. Drop your file
MP3, WAV, FLAC, or M4A. It's decoded with the Web Audio API — nothing leaves your device.
2. Set volume & channels
Slide the gain in dB or check normalize, and pick keep / mono / stereo for the channel layout.
3. Export the WAV
Apply and download the edited WAV — or head over to mastering and a lyric video for the same track.
What people use a volume changer for
Quick fixes that don't need a full editing session.
Fixing a too-quiet track
Normalize a quiet recording so it plays at a usable level without you guessing at the exact gain.
Mono / stereo requirements
Some tools or platforms expect mono (voice) or stereo — convert in one click instead of re-exporting from a DAW.
Matching levels
Nudge one track's gain to sit at a similar level to another before you combine or sequence them.
Frequently asked questions
Volume & channels, answered.