JSON Schema Validator
Validate any JSON value against a JSON Schema — full Draft 2020-12 support via Ajv with standard formats.
✗ 1 error
| Path | Keyword | Message |
|---|---|---|
| /tags | uniqueItems | must NOT have duplicate items (items ## 2 and 1 are identical) |
Validation engine
Powered by ajv with the standard format suite — UUID, email, hostname, IP, date-time, URI, regex, and more. We use Draft 2020-12 by default; older drafts work too because Ajv is backward-compatible for most keywords.
What you see
Either a single “valid” line or a list of errors with their instancePath, failed keyword, and message — click the path to copy it.
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