JSON format and validate
Format JSON and locate syntax errors.
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Before you start
Fix suggestions never overwrite the input.
Frequently asked questions
Is a JavaScript object literal valid JSON?
JSON requires double quotes for keys and strings. Comments, trailing commas, and undefined are not allowed. For example, {"enabled":true} is valid but {enabled:true} is not.
Is my file or input sent to a server?
No. Processing stays in your current browser session.