json formatter
How to format JSON online
Minified JSON is unreadable. A formatter adds indentation; a minifier removes whitespace; a validator catches broken commas and quotes.
Beautify vs minify
Beautify helps review APIs. Minify shrinks payloads. Both live in the LedaTools formatter.
Validate as you go
If invalid, the parser error guides you. JSON requires double quotes—no JS-style trailing commas.
Privacy
Local formatting matters when payloads contain PII or secrets.
JSON vs JSONC
Comments (JSONC) are not strict JSON. Strip comments before validating with standard parsers.
Performance tips
For huge files, consider CLI tools. In the browser, paste only the fragment you’re debugging.
FAQ
Does it validate JSON?
Yes. Invalid JSON shows the parser error.
Is JSON uploaded?
No. Parsing is local.
Can I minify?
Yes. Use minify to strip whitespace.