What is the difference between beautify and minify?

Beautify (pretty-print) adds indentation and line breaks so JSON is easy to read. Minify strips all unnecessary whitespace to make the smallest possible payload for transfer or storage.

JSON Formatter & Validator

Paste messy JSON to beautify, minify or validate it — with exact error line numbers when something's wrong. Everything runs in your browser; your data is never uploaded.

Input JSON

Output

Indent

A faster way to read and fix JSON

JSON is everywhere — API responses, config files, log lines — but a single missing comma or stray quote breaks the whole thing. This formatter pretty-prints valid JSON so nested structures are readable, and when the input is invalid it points you straight at the line and column of the first error instead of a vague "unexpected token".

Beautify, minify, validate

Beautify re-indents with 2 spaces, 4 spaces or tabs. Minify collapses everything to one compact line for the smallest payload. Validate just tells you whether the JSON parses, with the error location if not.

Private by design. Parsing happens entirely in your browser — safe for API keys, tokens and internal config. Nothing is sent anywhere.

Frequently asked questions

Is my JSON uploaded to a server?

No — it's parsed in your browser with the native JSON engine. Safe for sensitive data.

What does the validator check?

Strict JSON grammar, reporting the first syntax error with a line and column (trailing comma, missing quote, unclosed bracket, etc.).

Beautify vs minify?

Beautify adds indentation for readability; minify strips whitespace for the smallest size.

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