What Is JSON?

JSON (JavaScript Object Notation) is a lightweight text format for storing and exchanging data. It uses key-value pairs (like a dictionary) and arrays (like a list). It's the standard format for web APIs and configuration files.

What Does "Parsing JSON" Mean?

Parsing converts raw JSON text into a structured data representation. When you parse {"name":"John","age":30}, the parser creates an object where you can access object.name to get "John".

How to Parse JSON Online

1. Open JSON Parser Online.
2. Paste or type your JSON string into the input box.
3. Click Parse (or it parses automatically as you type).
4. The structured tree view shows your parsed data.
5. Expand/collapse nodes to explore nested objects and arrays.

Validating JSON

A JSON parser will show errors for invalid JSON. Common errors: missing commas between key-value pairs, trailing commas after the last element, using single quotes instead of double quotes, or unescaped special characters in strings.

Use Cases

• Debug API responses
• Verify JSON config file syntax
• Explore nested data structures visually
• Format minified JSON for readability