Cron Expression Tool
Explain cron expressions in plain English, preview upcoming runs, and generate Unix, seconds, or Quartz cron schedules.
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JSON Formatter
Beautify, minify, validate, and sort JSON in your browser.
Input JSON
Output JSON
Formatting options
How to use this JSON formatter
Use this formatter when JSON is valid but hard to read, or when you need a compact payload for another tool.
- Paste JSON into the input field.
- Review the formatted output as it updates automatically.
- Switch between beautify and minify depending on whether you need readability or compact output.
- Use sorted keys when you want stable diffs for configuration files or API examples.
JSON Formatter features
- Format pasted JSON into readable, indented output.
- Validate JSON syntax while editing.
- Sort object keys when stable diffs or predictable examples matter.
- Use formatted output for configuration files, API examples, and documentation.
- Copy cleaned JSON after formatting.
- Clear the editor quickly for another JSON payload.
When JSON formatting helps
JSON formatting is useful when reviewing API responses, editing configuration, comparing examples in documentation, preparing payloads for tests, or shrinking data before pasting it into another tool.
Pretty-printed JSON is easier to scan because nested objects and arrays are indented consistently. Minified JSON removes unnecessary whitespace, which can be helpful when a value needs to fit into an environment variable, request body, issue comment, or example where compactness matters.
Sorting object keys is useful when you want predictable diffs across configuration files, generated fixtures, or documentation samples. Avoid sorting keys when the original order carries meaning for humans reviewing an example, even though JSON objects themselves are usually treated as unordered data.
How the formatter works
The formatter uses the browser's built-in JSON parser. It accepts valid JSON, preserves arrays and primitive values, can recursively sort object keys, and never sends pasted data to a server.
Because it uses strict JSON parsing, JavaScript object literals are not accepted. That means comments, trailing commas, single-quoted strings, unquoted keys, and special values such as undefined or NaN will be reported as invalid instead of being silently rewritten.
The output is generated from the parsed value, so insignificant whitespace changes are expected. Numbers, strings, booleans, nulls, arrays, and object values are preserved according to JSON parsing rules.
JSON formatter FAQ
Does this fix invalid JSON?
No. It reports parse errors so you can correct invalid syntax such as trailing commas, comments, or unquoted keys.
Will sorted keys change my data?
Sorting changes object key order only. Values, arrays, strings, numbers, booleans, and nulls are preserved.
Is my JSON uploaded?
No. Parsing and formatting run in your browser.
Why do comments or trailing commas fail?
Those are common in JavaScript object literals and some config formats, but they are not valid JSON. Remove comments and trailing commas before formatting.
When should I minify JSON?
Minify JSON when you need compact output for a request body, environment value, fixture, or pasted example. Use beautify when humans need to inspect or edit the data.
Built and maintained by utilkit. Found an issue? Send corrections to contact@utilkit.com