JS Developer

JSON Formatter

Format JSON online, validate broken payloads, minify responses, and sort object keys when you need cleaner API data to read or compare.

1 min read

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What JSON Formatter helps you do

Use this page when you need to format JSON online, check whether a payload is valid, or turn dense one-line API output into something you can actually read.

It is especially useful for copied API responses, webhook payloads, config snippets, and JSON you want to compare after sorting object keys.

Use the tool

Ctrl + Enter Format Ctrl + Shift + M Minify Ctrl + Shift + V Validate Ctrl + Shift + S Sort

Use Monaco-powered editors with syntax highlighting, Arabic-friendly Unicode support, always-visible folding controls, upload support, and live auto-formatting while you type or paste.

Input

Characters 0 Lines 0 Bytes 0 Estimated tokens 0

Output

Characters 0 Lines 0 Bytes 0 Estimated tokens 0

Compression

Minified bytes 0 Minification 0% Validation Waiting

Formatting and minifying example

Formatting adds indentation for readability, while minifying removes unnecessary whitespace for transport or storage. Sorting keys can also make API payloads easier to compare in code reviews.

{
  "meta": {
    "active": true,
    "environment": "production"
  },
  "users": [
    {
      "id": 1,
      "name": "Alice",
      "role": "admin"
    }
  ]
}

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Frequently asked questions

What does this JSON formatter do?

It formats JSON with readable indentation, validates whether the input is valid JSON, minifies payloads, and can sort object keys before comparison.

When should I use a JSON formatter?

Use it when copied JSON is hard to read, when an API response needs validation, or when two payloads need a cleaner comparison.

Can it fix invalid JSON automatically?

It shows the parsing problem clearly, but it does not guess how malformed JSON should be repaired.

What is the difference between formatting and minifying JSON?

Formatting adds spacing and line breaks for readability, while minifying removes unnecessary whitespace to keep the payload compact.

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