Effectivy Wonder is a boutique effects pedal maker based in Barcelona, Spain, building handmade guitar and bass pedals in small runs. The operation centers on a single builder who also plays in the Spanish band Odio París, and the brand has a playful, pop-culture-inflected identity reflected in pedal names like Maradonator, Spring in Twinpeaks, BatPedal, GhostBooster, and Best Pedal Ever.

The catalog covers a wide range of effect types, with a lean toward faithful recreations of vintage circuits alongside original designs. Highlights include the Juno Chorus, a stereo chorus modeled on the Roland Juno 60/106 with hands-on controls for rate, depth, EQ, and feedback; the Cy-Vorg, a take on the Korg/Pearl Warpsound; the Adventure Phaser, a fully analog true-bypass phaser; the Black Hole polychorus; the Big Fuzz bass fuzz; and the Best Pedal Ever, a combined germanium Fuzz Face–style fuzz and overdrive with an added tone control.

Sold primarily direct and through Reverb, Effectivy Wonder has developed a following in the offset-guitar and boutique-pedal communities, where the shop is known for small-batch builds, custom orders, and an emphasis on analog circuitry.

Effectivy Wonder has 7 products cataloged on Equipboard, including Overdrive Effects Pedals. Their gear is featured by 1 artist, with the strongest followings in Rock. Notable users include Damo Musclecar.