Cairo Hacker Typer

Cairo is the contract language of StarkNet, where computation gets compressed into zero-knowledge proofs. Even most developers have never seen it, so a Cairo screen grants instant "I work three abstraction layers above you" status.

The sample is a StarknetDEX contract module with caller addresses, arrays, and options — a decentralized exchange in miniature. It proves nothing, with or without knowledge.

In this sample: A StarkNet DEX contract module using contract addresses, arrays, and option types.

How to use the Cairo typer

Click the terminal above and mash any keys — each press reveals the next characters of the Cairo sample.
Open Settings to change theme, speed, sounds, Matrix rain, the CRT effect, or turn on Auto-Type so the screen types itself.
Use browser fullscreen for a clean movie shot, and Share setup to copy a link that restores everything.

Ready-made Cairo presets

With Matrix rain Retro CRT Cyberpunk Auto-typing demo

Related fake coding screens

Like every HackerTyping screen, this is harmless entertainment: the Cairo code is a local, prewritten sample that is displayed and never executed, and your keystrokes are never recorded. See the main hacker typer, the filmmaker guide for shooting tips, or the privacy policy. A project of Wild Monkey Labs.