JSON Schema Validation
Use restricted JSON Schema rules locally in the browser to validate JSON documents, reporting paths, keywords, and unsupported features.
How to use JSON Schema Validation
JSON Schema validation processes input only in the current browser; it does not upload, access the network, or save user data.
Input content
Paste JSON documents and Schema, or load local text of no more than 1 MiB.
Select a processing method
Check types, required fields, properties, arrays, ranges, combinator keywords, and local references.
Check and export
View the valid status, error paths, and warnings, and copy or download the structured results.
Limitations and Notes
- Supported Schema keywords and local $ref have clearly defined boundaries; remote references are not read.
- Maximum depth 128, nodes 100,000, errors 50; unsupported features will display a warning.
- The tool only provides locally processed results; important configurations, secrets, documents, and published content must still be reviewed in the target environment.
FAQ
Will the input be uploaded to a server?
No. The page only uses browser memory, the local file API, and local resources already provided with the site.
Why does Schema have a warning but the result is still valid?
warning indicates that a keyword was encountered that is not covered by the restricted implementation; it does not mean that the feature has been fully validated.
Why do the results still require manual review?
Edge-case syntax, regional standards, third-party readers, and target runtime environments may differ; the tool does not replace final validation.