OmniToolsFree

JSON formatter and validator

Beautify, minify, validate and optionally sort JSON keys. Errors show a line and column.

  • 5 MB of text
  • Runs in the browser

This runs in your browser. What you type is not uploaded by this tool.

66 bytes

Parsed with the browser JSON parser. Inputs over 1 MB still run locally. Nothing is uploaded.

How to use it

Three steps

  1. 01

    Paste JSON.

  2. 02

    Choose an indent or minify, and whether to sort keys.

  3. 03

    Format it. A syntax error points at a line and column.

Related tools

JSON and CSV converter

Turn an array of JSON objects into CSV, or a headered CSV into JSON.

YAML and JSON converter

Convert YAML to JSON, or JSON to YAML. The preview is text, not a rendered document.

Base64 encode and decode

Encode or decode text and files as standard or URL-safe Base64.

Questions

Is the JSON uploaded?

No. It is parsed in this browser.

Does sorting keys change arrays?

Object keys are sorted. Array order is left as it is.