Heptode is a boutique guitar effects company based in Orsay, France, founded in 2010 by Jean-Luc Chtioui, a former telecommunications engineer who transitioned into musical equipment design. The company specializes in analog pedals and amps that aim to replicate classic tube tones using solid-state circuitry. Heptode also offers repair and service work for other manufacturers' gear.

The pedal lineup centers on three models: the Deep Crunch, an overdrive/preamp inspired by the crunch channel of the Soldano SLO-100; the Heavy Tone, a high-gain distortion preamp also drawing from the SLO-100's overdrive channel; and the Virtuoso, a six-stage analog phaser modeled after the vintage Maestro PS-1A Phase Shifter. All three pedals feature true bypass and cabinet simulation outputs for direct recording. On the amp side, Heptode produces the Jim '81 and Leo '64. The company also develops software plugins, including the Amplosion amp simulator and Virtual Pedals suite, which offer digital versions of their hardware pedals as VST3/AU plugins.

Heptode gear has been used by artists including Lenny Kravitz, session guitarist Carl Verheyen, Chris Shiflett of Foo Fighters, and jazz guitarist Nguyên Lê.

Heptode has 1 product cataloged on Equipboard, including Phaser Effects Pedals. Their gear is featured by 2 artists, with the strongest followings in Rock. Notable users include Chris Shiflett and Tim Pierce.