JSON Formatter
Format, beautify, validate, minify, and inspect JSON with syntax highlighting, error hints, downloadable output, and a quick tree view for easier debugging.
How to Use the JSON Formatter
- Paste your JSON into the input area.
- Click format to beautify the structure with readable indentation and syntax highlighting.
- Use minify when you want a compact JSON string for transport or embedding.
- Review the error message box if validation fails, then copy or download the cleaned result when it is valid.
What Is JSON?
JSON stands for JavaScript Object Notation. It is a lightweight text format used to store and exchange structured data between browsers, servers, APIs, apps, and automation tools.
Why formatting JSON is important
Formatted JSON is much easier to scan, debug, and review than one long compressed line. Indentation helps developers spot nesting, arrays, missing commas, and invalid values faster.
JSON validation explained
Validation checks whether the text follows JSON syntax rules. A validator catches problems like missing quotes around keys, trailing commas, invalid brackets, or incomplete values before the data is used in code.
Common JSON errors
Common issues include missing commas, unmatched braces, single quotes instead of double quotes, trailing commas, and unquoted property names. A formatter with error highlighting makes those mistakes easier to track down.
Frequently Asked Questions
How do I format JSON?
Paste JSON and click format.
Is this tool free?
Yes.
Does it validate JSON?
Yes.
Can I fix errors?
It highlights errors.