Text & Code

JSON Formatter & Validator

Paste messy or minified JSON and instantly pretty-print it with the indentation you prefer, or minify it back down for production. Invalid JSON is flagged with a clear error message so you can fix it fast. Everything runs locally — your data is never sent anywhere.

Runs in your browserNo uploads, instantFree, no sign-up
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▸ Highlights
  • Beautify with 2 / 4 / tab indentation
  • Minify to a single line
  • Clear validation errors
  • One-click copy of the result

How to use the JSON Formatter & Validator

  1. 01

    Paste JSON

    Drop your JSON into the input area.

  2. 02

    Choose an action

    Beautify with your indent, or minify it.

  3. 03

    Check validity

    Errors are highlighted with a message.

  4. 04

    Copy

    Copy the cleaned-up JSON to your clipboard.

Frequently asked questions

Is my JSON sent to a server?+

No. Parsing and formatting happen entirely in your browser, so you can safely paste configuration, API responses or other sensitive data.

What does minify do?+

Minifying strips all whitespace and line breaks to produce the smallest valid JSON, which is ideal for embedding in code or shrinking API payloads.

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▸ BUILT BY ANWER SOLANGI

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