JSON
Format, validate, and explore JSON.
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About
JSON formats, validates, and lets you explore JSON with a tree view, reporting the specific syntax error rather than just "invalid JSON." It can also minify, deep-sort object keys, and show structural stats — depth, key count, how many strings versus numbers versus booleans. Large documents are parsed in your browser; nothing you paste is sent to a server.
Frequently asked
- Does it tell me exactly where a syntax error is?
- Yes, invalid JSON is reported with the specific error rather than a generic failure, so you can jump straight to the problem.
- Can it sort object keys recursively?
- Yes, the sort-keys option deep-sorts every nested object's keys alphabetically, not just the top level.