SoniqTools is a free suite of 18 browser-based audio tools built for DJs, producers, and audiophiles. Analyze audio quality, view spectrograms, convert formats, normalize loudness, trim, merge, and more. Everything runs locally in your browser, so your files never leave your device. No uploads, no accounts, no installs. Works on any device. Available in 9 languages. Just open a tab and get to work.