DEV📐JSON Schema Validator

JSON Schema Validation: Ajv Engine + Detailed Error Path

This tool validates your JSON data against a Schema using a mainstream validation engine, supporting multiple standard versions with automatic field-level error location.

Typical scenarios: ① check whether API input conforms to the spec before front-end/back-end integration; ② validate config files to catch illegal configs early; ③ verify the integrity of exported data.

How to use: paste the data and Schema into their respective input boxes and click Validate. On failure, it shows the error path (e.g. `.users[2].email`) and the reason (missing field, type mismatch, wrong format), along with a suggested fix.

Notes: ① the more specific the Schema, the more issues it catches — using only "type" catches type errors; adding "required", "format", or "pattern" also catches missing fields and bad formats; ② for older projects, use a version with better compatibility; newer projects can adopt a newer standard; ③ large-data validation is fast, so use it with confidence.