Acid Fuzz is a boutique pedal workshop producing hand-built guitar effects in the USA, with a catalog focused almost entirely on vintage-style fuzz circuits. Many of their pedals are direct homages to classic designs of the 1960s — the lineup includes the MKII Mini and MKII Vintage Series (Tone Bender-style units), the Italian Fuzz Compact and Italian Fuzz Vintage Series, the Selmer Buzz Tone and Selmer Buzz Tone Re-build, and germanium Fuzz Face variants such as the Acid Fuzz Face NKT 275.

Beyond the vintage fuzz reissues, the builder offers more experimental designs like the M.A.D. (Musically Assured Destruction) Fuzz-Octave-Swell, the Sonic Boom, the Repeater, and the Zoink Machine. Production is small-batch and operates largely on a waitlist basis, with customers reserving spots via email rather than ordering from stock. The brand sits squarely in the collector-leaning boutique fuzz niche, appealing to players hunting period-correct germanium tones and limited-edition enclosures.

Acid Fuzz has 4 products cataloged on Equipboard, including Multi Effects Pedals and Fuzz Effects Pedals. Their gear is featured by 7 artists, with the strongest followings in Rock and Pop. Notable users include Anton Newcombe, Christian Bland, and Sarah Lipstate.