Tools / Data
JSON Formatter & Prettier
Paste raw JSON, prettify or minify it, then inspect the result as a collapsible tree with quick copy and download actions.
JSONTreePretty
JSON input
Readable errors
Invalid JSON reports the parser message and line details when the browser provides a position.
Tree first
Objects and arrays can be expanded or collapsed so large payloads stay inspectable.
Local only
Parsing, formatting, and copying happen in your browser. Nothing is uploaded.
FAQ
Questions before you use it
Feedback
Tell me what happened with JSON Formatter.
Send a bug, comment, improvement, or the next tool idea while the context is fresh.