The Endgame
for Blockchain Privacy

Introducing the Aztec Sandbox, a local developer environment for building end-to-end private applications.
The first milestone toward Aztec’s endgame: A no-compromises privacy-first Layer 2 on Ethereum.
Backed by the best investors in crypto
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Build with the Aztec Sandbox

The all-new Aztec Sandbox makes writing privacy-first applications a snap.

Run local node infrastructure, utilize comprehensive smart contract and front-end libraries, and test and build with full-stack privacy tooling.

Aztec Node & RPC Server

Run a package of backend services needed to build and publish Aztec rollup blocks, query blockchain state, and execute simulated transactions.

Smart Contracts
Noir &

Write smart contracts using a comprehensive framework that extends Noir with private smart contract functionality.

Testing Tools
Aztec.js & Aztec CLI

Interact seamlessly with a local instance of an Aztec node. Submit transactions, test contracts, and query blockchain state.

Write with

A powerful new smart contract framework for Aztec applications. allows you to write privacy-first smart contracts with sweet syntax, seamless state management, and a sophisticated library of privacy primitives.

Sweet syntax is written in Noir, an open-source Rust-based zk language.

Write code, not circuits.

Seamless state management

Manage private state headache-free. No more reasoning about Merkle Trees. Just read and write to private storage.

Sophisticated privacy primitives

Import cryptographic primitives like ECDSA and SHA without the hassle of re-implementation.


Learn with Aztec’s Community

Aztec Labs is committed to supporting open-source software development in tight collaboration with the best privacy developers in crypto.

Join our community to get live developer support from the Aztec Labs team and privacy-first peers.

Grow with Grants

Aztec Labs Grants funds developers building with and contributing to the Noir programming language and Aztec’s network design.

Grants Wave 3 supports three categories of grants: (1) libraries and tooling that benefit the Noir ecosystem; (2) Educational content about Noir, ZK, and Aztec; and (3) Meaningful contributions to our network development, like RFPs on our Discourse or direct code contributions on our Github.


Recent Events


November 19 - 23, 2023

Week-long gathering of independent Ethereum events to learn, share, and make progress together.


October 27 - 29, 2023

Aztec Labs is a silver sponsor of ETHLondon. Developer Relations Engineer Cat McGee will lead a workshop at the ETHLondon Hackathon – Programmable Privacy on Ethereum: Introducing Aztec and Noir.


october 6 - 27, 2023

Aztec Labs is sponsoring the world’s largest virtual Ethereum hackathon. Introducing Ethereum developers to ZK development with the Aztec Sandbox and Noir.

The Aztec Labs Blog

Contribute to Aztec’s design

Aztec Labs is committed to building in the open. Join us in debating and designing the future of privacy on Ethereum.


Start building with the Aztec Sandbox

Use and the Aztec Sandbox to unlock privacy-first applications today.