Scaler Music is a music technology software developer best known for Scaler, a chord progression and music theory plugin available in VST, AU, and standalone formats for macOS, Windows, and iPad. The product line spans Scaler 2 and Scaler 3, the scale-aware Scaler EQ, the Scaler Detector audio analysis tool, the Carbon Electra analog-style synthesizer, and the DC Snares sample pack. Scaler was originally distributed through Plugin Boutique, and the two brands remain closely associated in retail channels.

Scaler 3 functions as a composing and songwriting environment, offering hundreds of artist-, genre-, and mood-based chord sets, MIDI and audio chord/key detection, voice-leading between chords, and VST/AU plugin hosting across multiple chord and MIDI tracks. Scaler EQ applies harmonic, scale-aware processing rather than conventional frequency-band EQ, and Carbon Electra is a subtractive virtual analog synth with dual filters and onboard effects.

The company's tools have been endorsed by artists including Carl Cox and Jean-Michel Jarre, and the plugin has become a commonly cited option in discussions of chord-generation and music-theory software on forums such as KVR Audio and Gearspace.

Scaler Music has 3 products cataloged on Equipboard, including Music Theory Tools and Synth Plugins.