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JSON Formatter
Paste JSON text to validate syntax, pretty-print nested data, or minify JSON without uploading raw text or storing it in custom analytics.
Format JSON for debugging, validate pasted API responses, minify config snippets, and clean nested data before copying it into code or documentation.
Result
How it works
Paste JSON text, choose Pretty or Minify mode, and run the formatter in the browser. SOLVEOZA parses the JSON with the built-in JSON parser, returns formatted output plus character and byte counts, and shows syntax errors without echoing your private values. Raw JSON text, object keys, values, filenames, and formatted output are not stored in custom analytics.
Examples
Pretty object
Input: {"name":"Ada","score":10}
Output: { "name": "Ada", "score": 10 }
Nested array
Input: {"items":[{"id":1},{"id":2}]}
Output: Formatted object with an indented items array
Minified JSON
Input: { "name": "Ada", "score": 10 }
Output: {"name":"Ada","score":10}
Boolean value
Input: {"active":true}
Output: { "active": true }
Null value
Input: {"middleName":null}
Output: { "middleName": null }
Four-space indent
Input: {"team":{"name":"SOLVEOZA"}}
Output: Nested JSON with four-space indentation
Syntax check
Input: {"name":"Ada"
Output: Validation message with a safe syntax position
FAQ
Does SOLVEOZA upload my JSON?
No. The JSON formatter runs in the browser tool flow and does not send raw JSON to a SOLVEOZA formatting server.
Does SOLVEOZA store object keys or values?
No. Custom analytics may record coarse tool events only, not raw JSON text, keys, values, filenames, or formatted output.
Can this validate JSON syntax?
Yes. If parsing fails, the tool returns a generic syntax message and position when available without echoing the private input.
Can I minify JSON?
Yes. Choose Minify mode to remove extra whitespace while preserving JSON data.
Can I choose indentation?
Yes. Pretty mode supports two-space and four-space indentation for common development and documentation workflows.
Does it support JSON5, comments, or trailing commas?
No. This tool uses strict JSON parsing, so comments, trailing commas, unquoted keys, and JSON5-only syntax are rejected.
Can I format very large JSON text?
Not in this first browser-safe slice. JSON input is capped at 512 KiB, and formatted output is capped at 2 MiB, measured by UTF-8 byte size.
Should I paste secrets or credentials?
Avoid pasting API keys, tokens, credentials, regulated data, or confidential production data into any web tool unless your policy allows it.