Developer tool
JSON Formatter
Format, beautify and minify JSON instantly in your browser.
About this JSON formatter
This free JSON formatter helps you format, beautify and minify JSON data quickly. It is useful for developers, API testing, debugging, configuration files and working with structured data.
How it works
Paste your JSON, then choose Format to make it readable or Minify to remove unnecessary spaces. Everything runs directly in your browser.
Frequently asked questions
- What does a JSON formatter do? ▾
- A JSON formatter takes raw or minified JSON and displays it with proper indentation and line breaks, making it easy to read and understand.
- What is the difference between pretty print and minify? ▾
- Pretty print adds indentation and line breaks to make JSON human-readable. Minify removes all unnecessary whitespace to produce compact JSON for use in code.
- Does this JSON formatter send my data anywhere? ▾
- No. All formatting happens locally in your browser. Your JSON never leaves your device.
- What is valid JSON? ▾
- Valid JSON uses double-quoted keys, supports strings, numbers, booleans, null, arrays and objects, and follows strict syntax rules. Single quotes, trailing commas and comments are not allowed.
- Is this JSON formatter free? ▾
- Yes, completely free. No sign-up, no download and no ads. Works entirely in your browser.