Common uses
- Read and debug API responses or webhook payloads.
- Validate configuration files before using them in an application.
- Minify JSON for storage, testing or transport.
JSON Formatter & Validator
Format, minify, validate, copy or download JSON.
Processed locally. Never uploaded.
Your input stays in this browser
Result
Your result will appear here.
How it works
Done in three quick steps
- 1
Paste JSON into the editor.
- 2
Choose Format, Minify or Validate.
- 3
Copy or download the result.
About this tool
What you can do with JSON formatter
The JSON formatter parses your input in the browser, reports syntax errors and can return either readable indented JSON or a compact minified version. It is useful for inspecting structured data without sending API responses, configuration files or payloads to a remote formatter.
Tips for better results
- JSON property names and string values must use double quotes.
- Formatting changes whitespace only; it does not alter valid data values.
- Avoid pasting production secrets on shared or untrusted devices even though processing is local.
Good to know
Frequently asked questions
Clear answers about privacy, quality and how this tool works.