JPTR FX is a German effect pedal company founded by Chris Jupiter (born Christian Lessenich) and based in Wilhelmshaven, a small town on the North Sea coast of Germany. Every pedal is handbuilt in small batches by a tight-knit team, sold direct with no dealers or middlemen. The brand's aesthetic is unapologetically raw and industrial, and their tagline — "the world's ugliest sound devices" — captures the ethos: aggressive circuits built for players who prize grit, saturation, and noise over pristine clean tones.

The lineup spans fuzz, overdrive, delay, and reverb, with standout models including the Warlow fuzz, the Silvermachine dual-gain-stage fuzz, the Super Weirdo fuzz modulator, the Jive reel saturator overdrive, the Bleach (billed as a "Seattle Guitar Destroyer"), the Fernweh vintage-voiced dual delay, and the Kaleidoscope Ultra multi-reflector reverb. JPTR FX has also expanded into amplification with the Titan 250, a 250-watt tube amplifier. The pedals have found their way onto boards used by members of My Chemical Romance, The Smashing Pumpkins, Slipknot, Nine Inch Nails, Godspeed You! Black Emperor, and Boris, among others, cementing the brand's reputation across rock, metal, doom, and experimental circles.

JPTR FX has 19 products cataloged on Equipboard, including Fuzz Effects Pedals, Overdrive Effects Pedals, and Delay Effects Pedals. Their gear is featured by 5 artists, with the strongest followings in Rock and Metal. Notable users include Miguel Fonseca, Nicky Palermo, and Gerard Way.