JSON Beautifier
Format and pretty-print JSON text with custom indentation levels and optional key sorting.
Run tool
This online JSON beautifier parses raw JSON payloads and converts compact or unformatted text into clean, human-readable structure with consistent indentation. Paste minified API responses, configuration files, or nested data structures into the editor to inspect objects, arrays, keys, and values clearly. You can customize the indentation level to match your team coding style, using standard two-space or four-space formats, or any chosen numeric spacing. When working with complex objects, enable the sort keys option to alphabetize object keys at every nesting level, making differences easier to locate. The formatter preserves non-ASCII characters without replacing them with escaped unicode sequences, keeping international text, symbols, and accented characters intact. If you submit empty or whitespace-only text, the tool alerts you that no input was provided. If the input contains invalid syntax, unclosed braces, or malformed quotes, the tool flags the error instead of outputting corrupted data.
Instructions
- Paste or type your JSON text into the JSON Input area.
- Set your preferred Indent number for line spacing (default is 2).
- Check Sort Keys if you want object properties arranged in alphabetical order.
- Run the tool to view the formatted, cleanly indented JSON output.
Examples
- Formatting a compact object: Input `{"user":"Alex","role":"developer","active":1}` with Indent set to 2 outputs cleanly indented lines with two spaces per nesting level.
- Sorting object keys: Input `{"zebra":1,"apple":2,"mango":3}` with Sort Keys enabled outputs the keys in alphabetical order: apple, mango, zebra.
FAQ
How does the Indent setting change the output?
The Indent setting specifies how many spaces are inserted at each nested level of your JSON structure. The default value is 2 spaces, but you can increase or decrease this number to match your preferred code styling.
What happens if my JSON input contains invalid syntax?
If the input text cannot be parsed as valid JSON due to missing quotes, unclosed brackets, or trailing commas, the tool flags an error so you can correct the syntax.
Does formatting JSON preserve non-English characters?
Yes. Non-ASCII characters such as accented letters, international scripts, and symbols are preserved directly in the output rather than being converted into escaped unicode sequences.
What does the Sort Keys option do?
When Sort Keys is enabled, the tool reorders all object properties in alphabetical order at every level of the structure, making key comparisons easier.