Increase MP3 volume for a song, a podcast or a voice memo, or turn it down. Your file stays yours: we never receive or store it. The wave shows the change before you save.
or drop a file anywhere on this page
MP3, WAV, M4A, FLAC, OGG and more
Your contracts, passport scans and family videos stay yours. No one but you gets to see them.
They don’t even reach us: your phone or computer does the work. Nothing to delete later.
No daily limits, no file-size cap, no paid Pro plan.
No account to create, no email to give. No account, nothing to hack.
A voice memo recorded too far from the phone. An old track much quieter than the rest. A ringtone you can’t hear in a pocket. One slider fixes each of them.
Drag the slider from Quieter through As is to Louder in 5 % steps, or tap a quick pick: 50, 150, 200 or 300 %. A new file opens at 200 %. Above 100 % a soft limiter holds the loudest peaks under −1 dB, so you can make audio louder without distortion. The wave shows the sound before and after, with the softened peaks marked.
Even it out measures how loud the whole file sounds in LUFS (loudness as ears hear it, not the highest peak) and brings it to −14 LUFS, the level of streaming music. A quiet file gets louder, a loud one softer, so songs from different albums play at one level. The gear also offers −16 LUFS for podcasts and −23 LUFS for TV and radio.
Move the slider below 100 % to make a song quieter, for example music that must sit under a voice. At 0 % the file is silent.
Every tool is free and will stay free. No trial, no ads, no paid plan.
Open the page and start. No account, no email, no password.
Nothing to upload and no queue: a video opens in a second, a simple trim saves in seconds.
We set none. A file can be as big as your device can handle.
No logo on top and no rights claimed: what you make is 100% yours.
The same tools on iPhone, Android and a computer, with big buttons and plain words.