← Full JSON Formatter Online - Format & Beautify JSON Free tool
Format JSON with 4 Space Indent
Teams that publish JSON configs often standardize on four spaces per level so diffs stay readable in Git and code review.
Paste minified or messy JSON below and the formatter applies a consistent 4-space indent. Syntax errors surface immediately with the parser message.
Ideal for backend engineers, technical writers, and mobile devs comparing API fixtures—everything runs locally with no account.
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Examples (copy-paste)
Minified config before format
{"database":{"host":"db.internal","port":5432,"ssl":true}}After 4-space indent
{
"database": {
"host": "db.internal",
"port": 5432,
"ssl": true
}
}FAQs
- Why use 4 spaces instead of 2 for JSON?
- Four spaces match many style guides for nested config files and make deep trees easier to scan. You can switch to 2-space or compact output anytime from the indent control.
- Is my JSON uploaded when I format with 4 spaces?
- No. Parsing and formatting happen entirely in your browser; nothing is sent to a server.
- Can I minify after formatting with 4 spaces?
- Yes. Set indent to Compact (0 spaces) or use the Minify button to produce a single-line payload again.