A practical cognitive bias tool

Bias is a feature, not a compliance module.

Most bias talk at work happens in a training, somewhere between the fire drill and the expense-report tutorial. This is not that. Your brain takes shortcuts because it has to, and those shortcuts are often leading every estimate, every hire, every "ship it," whether or not a slide warned you. The point of this tool is practical: help you spot which bias is in the room while you can still do something about it. There are a whopping 188 here, but sorted by the four problems they solve. You can also pick a lens, or start from a situation you're in and choose your own adventure.

Four problems, 188 biases. Click a wedge to go from a lens, to its clusters, to the biases underneath. The wheel and the list stay in sync.

In a specific moment right now? Start from a situation instead →

Pick the moment you're in. You'll get the handful of biases most likely to be at work, why each one shows up here, and a concrete cue plus an antidote for catching it.

All 188 biases from the Cognitive Bias Codex, grouped by the four problems the brain is trying to solve. Search by name, filter by problem, click any bias for the definition and a practical cue.