Tonepad is a DIY music electronics resource that develops and distributes designs for guitar effects and amplifier projects. The site has operated since the early 2000s, publishing free schematics, layouts, and step-by-step build documentation alongside professionally manufactured PCBs for hobbyists who want to build their own pedals. It was founded and is maintained by Francisco Peña, an architect based in El Salvador, and was among the first online destinations to offer high-quality circuit boards for the home pedal-building community.

The catalog covers a wide range of classic effects recreations and original designs, including PCBs for builds based on the MXR Phase 90, EHX Small Clone chorus, Ross Compressor, EHX Small Stone phaser, and the Ibanez Tube Screamer, among many others. Boards are RoHS-compliant and shipped ready to solder, with downloadable toner-transfer layouts available for builders who prefer to etch their own.

Tonepad's PCBs and associated parts are also distributed by Small Bear Electronics and synthCube. The site is widely referenced in DIY pedal forums such as DIYStompboxes, Madbean, and PedalPCB, and has a long-standing reputation as a foundational resource within the online stompbox-building community.

Tonepad has 3 products cataloged on Equipboard, including Compressor Effects Pedals, Overdrive Effects Pedals, and Tremolo Effects Pedals.