Clara Rules is an expressive, forward-chaining rules engine written in Clojure (and ClojureScript), designed to let developers encapsulate domain logic cleanly and declaratively using rules defined as code rather than domain-specific languages—while supporting Java interoperability. Clara is a forward-chaining rules engine written in Clojure(Script) with Java interoperability. It aims to simplify code with a developer-centric approach to expert systems. Clara is built, tested, and deployed using Leiningen. ClojureScript tests are executed via puppeteer.

Features

  • Define rules seamlessly within Clojure namespaces
  • Declarative rule syntax with clear separation of condition (LHS) and actions (RHS)
  • Supports rich domain modeling through forward-chaining logic
  • Integrates with Java libraries thanks to interoperability
  • Scales well and optimized for performance in production scenarios
  • Avoids complexity of enterprise-grade rule engines while remaining expressive

Project Samples

Project Activity

See All Activity >

Categories

System

License

Apache License V2.0

Follow Clara Rules

Clara Rules Web Site

Other Useful Business Software
Our Free Plans just got better! | Auth0 Icon
Our Free Plans just got better! | Auth0

With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
Try free now
Rate This Project
Login To Rate This Project

User Reviews

Be the first to post a review of Clara Rules!

Additional Project Details

Operating Systems

Linux, Mac, Windows

Registered

2025-08-20