CacheControl/json-rules-engine

Health v2 · maintenance only

Adoption not part of the score

3128 stars · 506 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

json-rules-engine is a lightweight JavaScript rules engine where rules are defined as simple, human-readable JSON structures. It supports nested ALL/ANY boolean logic, priorities, caching, and runs isomorphically in Node.js and the browser without using eval().

Use cases

• evaluate business rules defined in json
• build a decision engine for eligibility checks
• run conditional logic without hardcoding if statements
• persist and share rules as json documents
• validate facts against configurable rule sets
• add a rules engine to a node or browser app

When to choose

• you need rules that are human-readable and easy to persist as JSON
• you want a lightweight, dependency-free rules engine with no eval() for security
• you need the same rule evaluation in both Node.js and the browser
• your conditions involve nested AND/OR boolean logic over facts

When to avoid

• you need complex scripting or expressions beyond simple fact comparisons
• you require a high-performance forward-chaining inference engine like Drools
• your rules need native code execution or heavy computation per rule

Facets

library · maturity stable

workflow-automation developer-tools developer-tools backend browser cross-platform rules-engine business-rules json decision-engine isomorphic automation nodejs

Member repositories

For agents

markdown · JSON · MCP: product_card(name="CacheControl/json-rules-engine")