Compare JSON Schemas
Compare JSON Schema versions and review structural changes before publishing an API contract.
Schema path difference report
JSON Schema structure diff
Paste two JSON Schema or OpenAPI component drafts
Compare two JSON Schema or OpenAPI component drafts. The result reports structural paths, required-list changes, and type or constraint changes.
Frequently Asked Questions About Online Calculators
Does this validate a schema?
No. It compares two JSON documents. Use a schema validator separately when you need to check whether either draft is valid.
Does key order affect the result?
No when the default option is enabled; object keys are normalized before paths are compared.
Will my original file be changed?
The result is downloaded as a separate file. Keep your original until you have checked the JSON Schema structure diff.
What should I check before using the result?
Open the JSON Schema structure diff in the application that consumes it and spot-check the parts that matter to you; the original file stays untouched if you need to re-run with different options.