Chicago Stompworks is a Chicago, Illinois–based boutique pedal maker focused on recreating classic vintage guitar effects at prices aimed at working musicians. The company operates direct-to-consumer and divides its catalog between full-size handbuilt pedals — using through-hole components, true-bypass 3PDT switching, and hand-wired jacks — and smaller machine-assembled nano/micro enclosures built with SMD components.

The lineup leans heavily on recreations of out-of-print circuits. Notable models include the Mr. Vermin, a take on the ProCo RAT distortion with the LM308N chip; the Legitimate Beef, based on the Way Huge Red Llama; the Black Fudge, modeled on the Maestro MFZ-1 Fuzz-Tone; and the Gray Speck, patterned after the 1979 gray-spec DOD OD250. The brand also builds a range of Big Muff variants covering Ram's Head, Violet, Triangle, White Can, Green Russian, and Black Russian voicings, alongside nano-format overdrives, fuzzes, delays, chorus, and tremolo circuits.

Alongside pedals, Chicago Stompworks sells related accessories such as DC power splitters, battery converters, patch cables, and strings. The brand's niche is vintage-circuit cloning at accessible price points rather than original designs, positioning itself as an affordable alternative to higher-end boutique builders working in the same territory.

Chicago Stompworks has 16 products cataloged on Equipboard, including Fuzz Effects Pedals, Overdrive Effects Pedals, and Compressor Effects Pedals.