Question 1

What are common JSON validation errors?

Accepted Answer

Missing commas between properties, trailing commas after the last property, single quotes instead of double quotes, and unquoted keys are the most common issues.

Question 2

What is the difference between 2-space and 4-space indentation?

Accepted Answer

Both are valid. 2-space is standard in JavaScript/TypeScript ecosystems. 4-space is common in Python. Choose based on your project's style guide.

Question 3

Is there a size limit?

Accepted Answer

The tool handles JSON of any practical size. Very large files (10MB+) may cause browser slowdown. For production use with large datasets, consider command-line tools.

JSON Formatter