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Noir

Noir is an open-source, domain-specific programming language for creating privacy-preserving programs with zero-knowledge proofs. It provides developer tooling for building private Web2 and Web3 applications across blockchains, servers, browsers, mobile devices, and CLI environments.
Distributed
9 current maintainers7 active leads4 lead step-downs2 lead movements1 early lead departure

Maintainer signals as of Aug 10, 2026

Description

Noir is an open-source zero-knowledge programming language designed to make privacy-preserving application development accessible without requiring deep knowledge of cryptography. Its Rust-inspired syntax, Nargo CLI, libraries, and backend-agnostic compilation workflow support developers building ZK applications, including authorization systems, Solidity verifiers, full-stack applications, and private smart contracts. Noir programs can be compiled to ACIR and used with different proving backends, with Barretenberg presented as the default backend.

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