circomlib VS noir

I found Circom to be the best language to start learning ZKPs, as suggested by CyberPorter. To me, Circom has the ideal level of abstraction for learning: not too high level that it abstracts away some of the quirks of ZKP, and not too low level that you get bogged down in annoying details. It also has been around for quite some time (modulo how new everything ZK is!), so you can find more documentation and samples, as well as the awesome Circom workshops from 0xparc. Last but not least, there is circomlib, a library of common building blocks for Circom.

The other thing we need is the circomlib. Circomlib is a programming library with many useful predefined circuits. So, create an empty project, and install circomlib using this code:

mkdir -p $HOME/.nargo/bin && \ curl -o $HOME/.nargo/bin/nargo-x86_64-unknown-linux-gnu.tar.gz -L https://github.com/noir-lang/noir/releases/download/v0.17.0/nargo-x86_64-unknown-linux-gnu.tar.gz && \ tar -xvf $HOME/.nargo/bin/nargo-x86_64-unknown-linux-gnu.tar.gz -C $HOME/.nargo/bin/ && \ echo 'export PATH=$PATH:$HOME/.nargo/bin' >> ~/.bashrc && \ source ~/.bashrc

Noir, built by Aztec, is the newest language of the pack and is under active development. It is distributed as nargo, a rust-based CLI, and as a set of npm packages. The npm packages releases seem to lag slightly behind the crate, which has the bleeding edge features and only got its first stable release a few days ago (early February). Both the rust crate and the npm package can be used to compile Noir programs, generate and verify proofs, and create a verifier Solidity contract.

Noir.