Text & data TOOL

Format & validate JSON

Format complex JSON and find syntax errors.

01

Enter your text

On-device processing
Input · Up to 2 MB
02

Output options

No account. No uploads.

Format & validate JSON · How to use

Format complex JSON and find syntax errors.

  1. Enter your text
  2. Set your options
  3. Convert
  4. Inputs and results are not saved automatically. Copy or download the results you need.

Example

Enter {"name":"Poptools","local":true} to format indentation and check syntax.

Things to know

Use standard JSON. Comments and trailing commas are not valid JSON syntax.

Your files and results are never sent to a server. Everything is processed in this browser.

Save only the tools you need.