Youlean is an audio software company founded by Julijan Nikolic, a developer and musician based in Belgrade, Serbia. The company is best known for the Youlean Loudness Meter, a free VST/VST3/AU/AAX plugin that measures LU, LUFS, LKFS, LRA, and PLR values to help producers and engineers hit the loudness targets required by streaming platforms such as Spotify, Apple Music, Tidal, and YouTube, as well as broadcast standards for film and television. The plugin won the KVR Developer Challenge in 2016 and was subsequently presented at NAMM 2017.

Alongside the free version, Youlean offers a PRO edition with extended metering, real-time analysis, and export features, plus companion products including Youlean Audio Over Network, an Online Loudness Meter, a File Loudness Meter, and Youlean Loudness Meter Lite for iOS. Nikolic is also a longtime contributor to the FL Studio ecosystem, having produced Patcher presets and ZGameEditor Visualizer effects bundled with the DAW.

Youlean Software has 1 product cataloged on Equipboard, including Metering Plugins. Their gear is featured by 1 artist, with the strongest followings in Electronic, Pop, and Hip Hop. Notable users include Clarence Clarity.