UtilSnapDeveloperJSON Formatter

JSON Formatter

Beautify, minify, and validate JSON data. Syntax errors are highlighted instantly.

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How to format and validate JSON

  1. Paste JSON into the editor or load a sample payload.
  2. Choose beautify or minify to reformat the structure.
  3. Fix syntax errors highlighted by the validator before copying the result.

Related tools: JWT Decoder, Base64 Tool

Frequently asked questions

Is my JSON sent to a server?

No. Formatting and validation run entirely in your browser.

Can I minify JSON for production APIs?

Yes. Switch to minify mode to remove whitespace from valid JSON.