{
"tool": "calculator",
"live": true,
"count": 3
}object root, 3 keys
- Root type
- object
- Keys
- 3
- UTF-8 bytes
- 56
Formatting does not validate a business schema. It only checks whether the text is valid JSON.
JSON Formatter
Use this free JSON formatter to parse JSON, format it with readable indentation, optionally sort object keys, and copy the formatted output.
Inputs explained Result checks Example values Runs in your browser
Formula steps
- Parse the text with JSON.parse.
- Keep object key order from the input.
- Stringify the result with two-space indentation.
How to use the JSON Formatter
- Paste JSON text into the input box.
- Turn on Sort object keys only when alphabetical order will help comparison.
- Press Format JSON to parse and pretty-print the output.
- Treat parse errors as syntax checks, not full API schema validation.
What people use it for
Pretty-print minified JSON before reading or sharing it.
Check whether copied JSON has valid quotes, commas, braces, and brackets.
Sort keys when comparing small JSON objects.
Copy formatted output for notes, debugging, or documentation.
Quick examples
Tool object
{"tool":"calculator","live":true}Formatted JSON
Array data
[{"name":"Basic"},{"name":"Scientific"}]Indented array
Sorted keys
{"z":3,"a":1}Keys sorted alphabetically
Need the guide or a nearby tool?
Need a slower walkthrough, a related tool, or the full library? These links keep you close to the task you started.
- How to use the JSON Formatter See slower examples, input meanings, formula notes, result limits, and mistakes to avoid.
- Developer Tools Browse related calculators and utilities in the same category.
- Developer Utility Tools Hub Compare this with the nearby tools and checks in the same job path.
- Tool and utility guides Find more guides that use real tool inputs, examples, mistakes, and result notes.
- All free tools Search every live tool, converter, calculator, AI helper, and browser utility.
Frequently asked questions
Plain-language answers about when to use the tool, what it does with your inputs, what to double-check, and how privacy works.
When should I use the JSON Formatter?
Use it when your task matches one of these common needs: Pretty-print minified JSON before reading or sharing it. Check whether copied JSON has valid quotes, commas, braces, and brackets. It works best when you already know the text, code, URL, mode, format, or technical setting the page asks for.
What is the JSON Formatter doing with my inputs?
In plain language: The tool parses JSON text in the browser, optionally sorts object keys recursively, then serializes the result with two-space indentation. The examples on the page are there so you can compare your inputs with a filled-out example before copying the answer.
What do the main JSON Formatter inputs mean?
The main inputs are usually text, code, a URL, a number base, or a mode setting. Paste only the part you want the tool to work on and compare the output with the examples.
How should I read the JSON Formatter answer?
Read the output next to your original input. If the tool changes format, units, encoding, spacing, or capitalization, compare a small sample before copying the whole result into another app.
What should I double-check before trusting the answer?
This checks JSON syntax, not whether the data matches an API schema, security rule, or business requirement. Also check the selected mode, input format, encoding, and whether the text includes private keys, passwords, or sensitive data.
Does formatting change my JSON values?
A successful format keeps the JSON data values the same. The tool may change whitespace, indentation, and object key order if sorting is on, but strings, numbers, booleans, null values, arrays, and nested object values should still represent the same data.
Can this validate a JSON schema?
No. It checks whether the text is valid JSON syntax. It does not check required fields, allowed values, API-specific types, or business rules from a separate JSON schema file.
Does the site save what I enter?
No. The tool runs in your browser tab. Your recent answers stay only on the page while you use it, and they are not sent to a server.
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