TR ToolRivet

Developer Tools

JSON Formatter & Validator

Format, minify and validate JSON directly in your browser.

Use this tool to clean up compact JSON, reduce formatted JSON to a single line, or quickly confirm whether a JSON payload is valid.

Formatter

Format, minify, and validate JSON locally in your browser.

Output

// Formatted JSON will appear here.

Related tools

JSON to TypeScript YAML / JSON Converter JWT Decoder

How to use

  1. 1. Paste JSON

    Add any JSON object, array, or value to the input field.

  2. 2. Format or minify

    Choose formatted output with two-space indentation or compact minified output.

  3. 3. Copy the result

    Copy valid JSON for use in code, docs, payloads, or config files.

Example

The formatter parses the input first, so invalid JSON produces a clear error instead of a misleading output. 

{
  "name": "ToolRivet",
  "tools": [
    { "title": "JSON Formatter & Validator", "available": true }
  ]
}

FAQ

Is my JSON uploaded to a server?

No, formatting and validation run locally in your browser.

Can I minify JSON?

Yes, you can format or minify JSON with one click.

Does it validate invalid JSON?

Yes, invalid JSON shows a clear error message.