json-rules-engine

The ultimate JSON-based rule engine that turns complex business logic into declarative configurations. Built for developers who believe code should be expressive, not repetitive.

📐 A fast, general-purpose JSON Rules Engine.

A highly configurable and dynamic rules engine based on JSON Schema

Convert rules between json-rules-engine, JsonLogic, json-logic-engine, filtrex, jexl, expr-eval, expression-eval and Casbin matchers. Any-to-any through one canonical IR, Rust-style Result API, zero runtime dependencies.

Experimental C# port of 'json-rules-engine'

JsonLogic skill for AI coding agents: generate, validate, run and debug JsonLogic rules. Claude Code, Cursor, Copilot, Codex, Gemini CLI. JSON logic playground, editor, validator, tester and evaluator: turn business rules into JSON. Works with JSON logic engines for JavaScript/npm, Python, Java, .NET/C#, PHP, Ruby, Go. JSON rules engine examples.

A lightweight, type-safe rule engine. Define complex business rules declaratively and evaluate them dynamically at runtime.

Compiled, synchronous, zero-dependency rules engine compatible with the json-rules-engine rule format — compile once, no Promise overhead per run.

A tiny (≈ 1 KB gzipped), zero-dependency TypeScript library for evaluating rule trees expressed as JSON-serializable data.

Communication Rule Engine which can be configured using json. Set the rule filter in json configuration file and action set which rule engine need to take place when all the filter condition satisfied

rules-engine for reactive forms

An operator for json-rules-engine to validate against a json schema

Product Checkout built based on Remix Fullstack Framework