AudioTool - Whether you want to make music for the club, or you're aiming to put a few tracks to a film, Audiotool is a website geared towards putting the mixes at your fingertips. Read more about AudioTool.
Friture - Friture is a program designed to analyze audio input in real-time.
Youlean Loudness Meter - Find your audio's true perceived loudness to prepare for TV and streaming services.
Signalizer - Signalizer is an all-in-one signal visualizing package for VST, VST3 and AudioUnits
Sound Level Meter - You can measure the environmental noise in decibels.
dpMeterXT - Precise 10 channel multi-meter supporting all relevant broadcast and streaming standards.