Faultier

The fault-injection tool

Meet your hardware security workbench. A compact voltage fault-injection tool that brings Python control, debugging, and hands-on experimentation together.

See All Buying Options Faultier documentation

Faultier board with a Raspberry Pi Pico, headers, and four SMA connectors

Automate glitching: Python
Pico at its heart: RP2040
Debugging built in: SWD
Talk to your target: UART
Voltage glitching: Crowbar

From curiosity to real hardware.

What happens when a chip’s supply voltage briefly stops behaving as expected? Faultier gives you a practical way to explore that question in your own hardware experiments, with Python control, SWD debugging, and a UART bridge in one tool.

Built around the Raspberry Pi Pico, it is small enough for your desk and flexible enough to grow with your experiments. Pair it with a Glitch Tag to get started, then keep exploring with your own targets.

Made to explore

A little board with a lot to explore.

Make it your experiment.

Control Faultier from Python. Build repeatable experiments with an open library that fits into your own workflow.

More than a glitcher.

An integrated SWD debug probe, voltage measurements, and a USB-serial bridge keep useful tools close at hand.

Explore different approaches.

A crowbar MOSFET and dual-channel analogue switch give you different ways to work with a target's power supply.

Documentation and source.

Use the Python API reference and project source to build your own tooling and explore how Faultier works.

Optional Hextree courses

Learn with Faultier.

Use Faultier for your own experiments. If you want guided learning, these optional Hextree courses use the same hardware. Course access is separate from the hardware purchase.