Paste your JSON. Get it formatted, validated, and syntax-highlighted instantly. No signup, no tracking, no nonsense.
Paste messy JSON and get perfectly indented, syntax-highlighted output in milliseconds. Works with files up to 10MB.
Pinpoints the exact line and position of JSON syntax errors. No more guessing where the missing comma is.
Strip whitespace to minimize payload size. See the byte savings instantly. Perfect for API configs and storage optimization.
Your JSON never leaves your browser. Zero data sent to any server. Safe for credentials, API keys, and sensitive configs.
One-click copy to clipboard or download as a .json file. Export formatted or minified — whatever you need.
Choose between 2 spaces, 4 spaces, or tabs. Matches your team's code style. Remembers your preference.