JSON & CSV Formatter / Validator
Paste raw JSON to format with 2-space indentation or minify it, with real-time validation. Paste CSV to normalize quoting/delimiters, or convert CSV to a JSON array. Supports comma, semicolon, tab, and pipe delimiters.
How it works
This json & csv formatter / validator runs entirely in your browser — no data is sent to any server. Simply fill in the fields above and the result updates instantly. You can copy the output with the copy button provided.
Frequently Asked Questions
What does JSON formatting do?
JSON formatting (beautifying) adds consistent indentation and line breaks to make compact JSON human-readable. Minifying removes all whitespace to reduce file size.
Is my data sent to a server?
No. All formatting and validation runs entirely in your browser. Your data never leaves your device.
What CSV delimiters are supported?
Comma (,), semicolon (;), tab (TSV), and pipe (|). The tool also handles RFC 4180 quoted fields and escaped quotes.