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JSON Validator & Linter
Validate and lint JSON payloads. Find missing brackets, trailing commas, or string quotes.
Common JSON Errors
JSON syntax is extremely strict. Typical validation errors include:
- Trailing Commas: Commas at the end of the last object key (e.g.
{"a":1,}) will fail validation. - Single Quotes: JSON keys and strings must be enclosed in double quotes (
"key"), not single quotes ('key'). - Missing Brackets/Curly Braces: Every opening
{or[must match a closing}or].
Our validator executes inside your local browser tab, meaning your proprietary configs are completely safe and secure.
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