What is JSON?
JSON (JavaScript Object Notation) is a lightweight data-interchange format. It is easy for humans to read and write and easy for machines to parse and generate. It's the standard format for REST APIs.
When to Use This Tool
- Debugging API responses that are hard to read on one line
- Validating JSON before submitting it to an API
- Minifying JSON to reduce payload size
- Understanding deeply nested JSON structures
Frequently Asked Questions
What is the difference between JSON and JavaScript objects?
JSON requires double quotes for keys and string values. JavaScript objects can use single quotes and unquoted keys. JSON does not support functions or undefined values.
Is there a size limit?
No. All processing happens in your browser. There is no server-side limit.