General Guitar Gadgets (GGG) is a DIY guitar effects company founded by JD Sleep and based near Good Hope, Missouri. What started in the late 1990s as a small website of schematics and build guides has grown into a family-run business selling complete stompbox kits, ready-to-solder PCBs, and occasionally hand-built pedals through its online store and Reverb shop.

The catalog focuses on replicas and variations of classic circuits rather than original designs, with popular kits including the Fuzz Face replica, the Rodent (a ProCo Rat-style distortion), the TB3 Tone Bender, the P45 Phase 45 clone with a "Vibe" mod, and the Brown Sound in a Box. GGG also publishes detailed wiring diagrams, parts lists, and drill templates on its site, making it a long-standing reference resource for hobbyist pedal builders.

The company has built a reputation in the DIY stompbox community for beginner-friendly documentation and for selling individual PCBs for projects that don't have full kits, letting builders source their own components. JD Sleep posts periodic video demos of new kits and mods, and the site's project archive is frequently linked from builder forums such as The Gear Page and My Les Paul.

General Guitar Gadgets has 6 products cataloged on Equipboard, including Fuzz Effects Pedals, Overdrive Effects Pedals, and Harmonizer & Octave Effects Pedals. Their gear is featured by 2 artists, with the strongest followings in Rock. Notable users include Teppei Teranishi and Steven Terebecki.