Bring an episode, a playlist or a stack of videos to one loudness. Your files stay yours: we never receive or store them. Pick where the sound is going, compare before and after, save.
or drop files anywhere on this page
MP3, WAV, M4A, FLAC, OGG, video and more · up to 20 files
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.
The guest is twice as quiet as the host. The old song drowns in the new playlist. The second clip of the trip is suddenly loud. Each file gets one gain, worked out from how loud it really sounds, and the jumps are gone.
Each track is measured the way broadcasters and streaming services do it: EBU R128 integrated loudness in LUFS, with quiet pauses left out of the average. A podcast with long silences is judged by its speech, not dragged down by the gaps. The true peak is measured too, including the wave between samples.
A quiet recording needs a lot of gain, and its peaks would go over the top. A true-peak limiter holds them under −1 dBTP by default, the ceiling platforms ask for. When a file would need its peaks squeezed hard, the page warns you before you save. MP3, M4A and OGG get half a dB more room, because their encoders lift peaks a little.
Drop all episodes of a season or all songs of a mixtape. Each one gets its own gain to the same target, and you get them back as one ZIP, each under its own name. A video keeps its picture untouched; only the sound is encoded again.
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.