Developer tools

JSON Formatter & Validator

Format, validate, and download JSON data.

Files and text stay in your browser. No uploads.
Ready0%

Paste JSON, choose indentation, then format it locally.

How it works

  1. Provide your input

    Paste JSON, choose indentation, then format it locally.

  2. Process locally

    Your browser performs the work without sending your content to a server.

  3. Use your result

    Download or copy the finished result when it is ready.

Frequently asked questions

Is my data uploaded?

No. This tool processes your files or text locally in your browser.

What does this tool use?

text. All required code loads from this site before processing begins.