Get a reliable result in three steps
- 1
Paste the complete content you want to validate.
- 2
Run validation and review any line, field, or syntax guidance.
- 3
Correct the source and validate again until the report passes.
What this tool does
JSON Schema Validator gives you a fast, focused way to validate JSON against a safe static subset of JSON Schema type and structural keywords. Everything runs locally in this tab.
The result is produced only after the input is checked. If the value cannot be processed, the workspace reports a specific error instead of guessing.
Features
- Local browser processing
- Non-destructive syntax and structure checks
- Actionable validation feedback
- Prepared valid example for immediate testing
Input and output
- Input
- JSON, JSON Schema
- Output
- text
- Processing
- Local browser
Example
{"id":1,"name":"Ada"}
---
{"type":"object","required":["id","name"],"properties":{"id":{"type":"integer"},"name":{"type":"string"}}}Limitations
- Review important output before using it in production.
- Very large inputs remain subject to browser memory limits.
- The static validator supports type, required, properties, items, and anyOf; unsupported JSON Schema keywords are not claimed as validated.
- Separate the JSON instance and schema with a line containing three hyphens.