Sound Radix is an audio software developer based in Tel Aviv, Israel, founded in 2010. The company focuses on building original processing tools driven by proprietary algorithms rather than emulations of vintage analog hardware, with an emphasis on solving common mixing, tracking, and post-production problems through clean, immediate user interfaces.

Their plugin catalog includes Auto-Align and Auto-Align Post, which automatically time- and phase-align multi-microphone recordings; Pi, a phase interactions mixer; Drum Leveler, a beat-detection-based dynamics processor for drums; SurferEQ, a pitch-tracking equalizer that follows the fundamental of a monophonic source; POWAIR, a loudness-based dynamics processor; and Radical1, an additive synthesis instrument. The plugins are distributed in AAX, VST, VST3, and Audio Units formats for macOS and Windows, and are also sold as the Radical Bundle.

Sound Radix tools are widely adopted in professional music mixing and film/post-production workflows, and the company's technology has been credited on projects recognized with major audio and film awards.

SoundRadix has 9 products cataloged on Equipboard, including Utility Plugins, Stereo Width Plugins, and EQ Plugins. Their gear is featured by 4 artists, with the strongest followings in Rock, Pop, and Electronic. Notable users include Skrillex, Charlie Puth, and Glenn Fricker.