A file that says FLAC or 320 kbps isn't always what it claims. DJ Quality Checker measures the audio itself and shows you which files are fake, upscaled or low quality — before they play on a big system.
No account · No ads · Your files never leave your computer
Drop a folder in. Every file gets a verdict and a reason you can read.
Every MP3 and AAC encoder cuts the high frequencies off at a fixed point — about 16 kHz for 128 kbps, 20 kHz for 320. Real lossless audio goes all the way up with no hard wall.
Pair it with Loudness Match to turn your clean, full-quality songs into DJ intro and outro edits in about a minute.
Free for every DJ. Windows 10 / 11 (64-bit). No installation — unzip and run.
Tell me when it's readyYes. No trial, no ads, no account.
MP3, M4A / AAC, FLAC, AIFF, WAV and other common audio files.
No. Everything runs on your computer.
Some older or lo-fi recordings never had high frequencies. Listen to it and use Mark as OK — it won't be flagged again.