Build a ZK App

Learn the mental model, the cryptography under the hood, and the tooling — then build a real ZK app with Noir end-to-end.

Build Your First ZK App

From mental model to working proof.

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Web2 vs Web3 vs ZK Applications

The ZK App Mental Model

What Is a Circuit?

Polynomial Commitments — The Big Idea

KZG Commitments

Proof Systems Landscape — SNARKs, STARKs & Plonk

ZK App Architecture & Intro to Circom

Circom vs Noir — Choosing Your Stack

Witnesses, Public Inputs & Constraints — Explained

How to Build Your First ZK App with Noir

Write Your First Circuit with Noir & Barretenberg

What Barretenberg Is Actually Doing

Common ZK App Patterns

ZK App Security Checklist