JSON Formatter Online Free
Format and validate JSON in your browser. Choose indentation, minify the input, and copy or download the result.
Processed in your browser
JSON workspace
How to use JSON Formatter
Three steps. No account or upload server.
- 01
Paste JSON
Paste up to 500,000 characters or load the example.
- 02
Validate or format
Check syntax, select indentation to format, or minify to remove unnecessary whitespace.
- 03
Save your output
Copy the result or download it as a JSON file.
Read an API response more easily
Paste a response and select two spaces to make nested objects and arrays easier to scan. Use Validate to check syntax or Minify to remove extra whitespace before saving a compact copy.
JSON Formatter questions
Short answers, then the practical details.
Does formatting change JSON values?
Formatting and minifying change whitespace outside strings. Number literals, escaped strings, duplicate keys and key order are preserved in the output.
What does JSON validation check?
Validation checks JSON syntax and reports parser errors, such as a trailing comma or missing quotation mark. It does not check your data against a JSON Schema.
Does this tool upload my JSON?
Your input is processed in the browser. Use Copy JSON or Download JSON to keep a result.