JSON Pretty
JSON formatting makes your code easier to read.
How to useJSON: make code readable.
Paste your code and choose indentation. Your original file stays unchanged. Copy or download the result when you need it.
- 01
Paste code or open a file
UTF-8 JSON file: open it or paste code. Try the Example button first if you like.
- 02
Choose indentation
Choose two spaces, four spaces, or tabs. Select Minify for single-line output.
- 03
Review and save
Copy or download your result. Editing the input clears the previous result.
Start with a simple example.
{"name":"GreatJIN","active":true}Click Example above to try formatting it yourself.
Frequently asked questions
Are large numbers preserved?
Only whitespace between tokens changes. Numbers and strings retain their original text, including large integers such as 9007199254740993, exponent notation, and key order.
Can I use comments or trailing commas?
Only standard JSON is supported. Comments, trailing commas, and single-quoted keys produce an error. Duplicate keys are retained; check how your application interprets them.
What does minifying change?
It removes whitespace outside strings. Spaces and escapes within strings stay intact.