Interactive Colored Petri Net visualizations, powered by real CPN Reactors compiled to WASM.

Traffic Light The simplest possible CPN — a three-state cycle driven by a single command. Start here to see how places, tokens, and transitions work. Submit, Approve & Reject Multi-input joins, data-dependent guards, and cycles. Submit items and watch the net route them through approval or rejection based on category. Live Scraper A 24-place scraper net running autonomously against a simulated site. Proxy leasing, domain rate limiting, resource discovery, and dedup — all coordinated by net structure.