Format or minify JSON

Format or minify your code in JSON locally in your browser using WebAssembly.

Format your code now!
{
  "greeting": "Welcome to HappyFormatter!",
  "instructions": [
    "Type or paste JSON here",
    "HappyFormatter will format your code"
  ],
  "example": {
    "name": "HappyFormatter",
    "version": "1.0.0",
    "features": ["formatting", "syntax highlighting", "auto-completion"]
  },
  "metadata": {
    "author": "Happy Dev",
    "license": "MIT"
  }
}
Valid json
{
  "greeting": "Welcome to HappyFormatter!",
  "instructions": [
    "Type or paste JSON here",
    "HappyFormatter will format your code"
  ],
  "example": {
    "name": "HappyFormatter",
    "version": "1.0.0",
    "features": ["formatting", "syntax highlighting", "auto-completion"]
  },
  "metadata": {
    "author": "Happy Dev",
    "license": "MIT"
  }
}

JSON Formatter


Happy Formatter's JSON Formatter and JSON Validator help to auto format JSON and validate your JSON text.

  • JSON formatter online is the best tool to format JSON data.
  • JSON minifier online is the best tool to minify JSON data.
  • It helps to validate JSON online with error messages.
  • It's also a JSON Beautifier that supports indentation levels: 2 spaces, 3 spaces, and 4 spaces.
  • Supports printing of JSON data.
  • 95% of APIs use JSON to transfer data between client and server. This tool can work as an API formatter.
  • Stores data locally for the last JSON formatted in the browser's local storage. This can be used as a Notepad++, Sublime, or VSCode alternative for JSON beautification.
  • This JSON online formatter can also work as JSON Lint.
  • Download JSON once it's created or modified, and it can be opened in Notepad++, Sublime, or VSCode alternative.
  • JSON Format Checker helps to fix the missing quotes; click the setting icon which looks like a screwdriver on the left side of the editor to fix the format.

Know more about json:

  • JSON is a lightweight data-interchange format that is easy for humans to read and write and easy for machines to parse and generate.
  • JSON is a text format that is completely language independent but uses conventions that are familiar to programmers of the C-family of languages, including C, C++, C#, Java, JavaScript, Perl, Python, and many others.
  • These properties make JSON an ideal data-interchange language.
  • JSON can represent four primitive types (string, number, boolean, and null) and two structured types (object and array).
  • JSON can also represent structured data such as dates, times, and network addresses.

JSON Validator


JSON Validator Online checks the integrity/syntax of the JSON data based on JavaScript Object Notation (JSON) Data Interchange Format Specifications (RFC).

  • It's super easy to find the error when line numbers are highlighted with an in-detail error description.
  • Use the format button as a JSON Fixer to repair the error.
  • To validate JSON you just need internet and no need to install any software.
  • Your JSON data gets validated in the browser itself.

Frequently Asked Questions

Explore Our Tools