Welcome to Cairo

A language for scaling dApps using STARKs

A Turing-complete language making it possible for all blockchain developers to harness the power of STARKs

Turing Complete

Cairo is the first Turing-complete language for creating provable programs for general computation.


Builtins and field elements enable efficient generation of proofs.

Production Ready

Cairo-based systems are already in production on Ethereum mainnet

Hello, Cairo

Will take you from Hello, World to the beginning of non-deterministic programming

How Cairo Works

Understand the building blocks of Cairo


Code and run Cairo from your browser

New Stuff


Build A Voting System with Cairo

Implement a simple, secure, non-anonymous voting mechanism.




Translates Cairo code into bytecode

Virtual Machine

Runs the Cairo program and turns it into a trace

IDE Extensions

Syntax highlighting for Vim and Visual Studio Code


Visual rendering of the program run

Application Code

StarkEx 2.0 code – same code that powers DeversiFi on mainnnet

The Cairo Games

Vol.1 has ended!

Vol.2 has ended!

Solve puzzles. Win Prizes.
Take a look at Vol.2

Join a Cairo Workshop

Next workshop: Coming Soon!