DEV📐JSON Schema Validator
Ajv engine · detailed error paths
Validates with Ajv (JSON Schema draft-07). Supports type / required / properties / pattern / format / minimum / maximum and other common keywords.
Excel and VBA tutorials from basics to practice — use the tools above as you go.
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.
Related Tools
← Home