JSON Tools Pro
Free online JSON validator, formatter, minifier and converter (XML/YAML/CSV). Supports JSONPath query for data extraction. No upload required - essential toolkit for developers.
Understanding JSON
What is JSON?
JSON (JavaScript Object Notation) is a lightweight data-interchange format that is easy for humans to read and write, and easy for machines to parse and generate. It has become the de facto standard for modern web APIs and configuration files.
What is JSONPath?
JSONPath is a query language for JSON, similar to XPath for XML. It allows you to extract specific values from JSON documents using path expressions. Use $ to represent the root object, and navigate through properties and array elements using dot notation or brackets.
Why Convert JSON?
While JSON is widely used, some systems and legacy applications still require XML or YAML formats. Converting between these formats helps integrate modern and legacy systems, and YAML's readable syntax makes it popular for configuration files like Docker Compose and Kubernetes.
JSONPath Syntax Reference
| Symbol | Description |
|---|---|
| $ | Root object |
| .key | Child property |
| .. | Recursive descent |
| [n] | Array index |
| [*] | All elements |
| [?(@.x)] | Filter expression |