JSON Logic Playground

Test your JSON Logic rules in real-time using our WebAssembly-powered evaluator. Enter your rules and data below to see the results.

Examples

JSON Logic Rules

info Enter a JSON object containing JSONLogic rules.

JSON Data

info Enter data as a JSON object to be used with the var operator.

Result

How It Works

This playground evaluates JSONLogic rules using a Rust implementation compiled to WebAssembly. All evaluation happens in your browser - no data is sent to any server.

Tutorial Operators List View Source