Enter JSON above to validate and format.
About this tool
Is my JSON safe? +
Yes — this tool runs 100% in your browser. Your JSON never leaves your computer. Nothing is sent to any server.
What's the difference between Format and Minify? +
Format (Beautify) adds indentation and line breaks to make JSON readable by humans. Minify removes all whitespace to make the JSON as compact as possible — useful for APIs and production use where file size matters.
Why is my JSON invalid? +
Common JSON errors include: trailing commas after the last item, single quotes instead of double quotes, unquoted keys, comments (JSON doesn't support comments), and missing closing brackets or braces. The error message will tell you the exact line and position of the problem.
What does Sort keys do? +
Sort keys alphabetically orders all object keys in the JSON. This is useful for comparing two JSON objects or for making JSON output deterministic and easier to read.