JSON Formatter & Validator
Format, validate, and beautify JSON data online. Minify JSON or pretty-print with custom indentation.
Common Use Cases
- debugging small payloads and snippets
- formatting code or data for readability
- running fast checks without a full project setup
What is JSON Formatter & Validator?
The JSON Formatter & Validator is a developer tool that takes raw or minified JSON, validates its syntax, and outputs a beautifully indented, readable version. You can also minify JSON for production use or copy it with custom indentation levels. It instantly highlights syntax errors with line numbers, making it easy to debug malformed JSON from APIs, config files, or databases.
How to Use This Tool
- 1Paste your JSON in the input area
- 2Click Format to beautify or Minify to compress
- 3See validation errors highlighted if JSON is invalid
Example
Input
{"name":"John","age":30}
Output
{ "name": "John", "age": 30 }
Before You Rely on This Result
UtilityNest keeps this tool simple on purpose: the goal is to make the task easy to understand, fast to complete, and straightforward to double-check.
- Review the inputs once more before you copy, save, or share the result.
- Use the example and FAQ on this page to sense-check how the tool behaves.
- When the result matters, compare one more scenario or related tool before acting on it.
Frequently Asked Questions
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