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Our engine is fully open source. Audit the code. Run it yourself. Fork it if you need to. We believe critical business logic shouldn’t be a black box — you deserve to see exactly how your decisions are made.

ZEN Engine

High-performance rules engine written in Rust with bindings for Node.js, Python, Go, and more. Processes millions of evaluations per second.

JDM Editor

React component for visual rule editing. Embed the same decision graph editor used in the BRMS directly into your applications.

Why open source matters

Full source access

Inspect every line that runs your rules. No hidden logic, no surprises.

No lock-in

Leave anytime. Your rules are portable JSON files you own.

Community driven

Built with feedback from teams like yours. Shape the roadmap.