AudioSpillage is an independent English developer specializing in drum synthesis plug-ins for macOS. The company's flagship product, DrumSpillage 2, is a model-based drum synthesizer featuring 12 exclusive synthesis algorithms spanning classic analog, physical modeling, and FM synthesis techniques. It can generate a wide variety of electronic percussion sounds — from deep kicks and TR-style snares to metallic cymbals, cowbells, and glass-like membrane timbres — with deep sound-design controls including LFOs, envelopes, distortion, filtering, and a 3-band resonator.

AudioSpillage also produces Elecktroid, a drum machine plug-in that combines four drum synthesis engines with a high-quality sample playback engine and an integrated 8-track rhythm sequencer featuring probability-based step triggering. MiniSpillage, the company's free offering, provides three of AudioSpillage's drum synthesis algorithms in a compact interface, serving as both a capable instrument and an introduction to the DrumSpillage engine.

All AudioSpillage products run exclusively on macOS with native Apple Silicon and Intel support, available in Audio Unit and VST formats. The developer has built a niche reputation in the electronic music production community for high-resolution 64-bit DSP engines and deeply tweakable drum sound design.

AudioSpillage has 3 products cataloged on Equipboard, including Drum Machine. Their gear is featured by 1 artist, with the strongest followings in Electronic. Notable users include Plaid.