Wwhaletu.
✓
DEVELOPER & SECURITY

JSON Schema Validator

Validate JSON data against a local JSON Schema Draft 2020-12 document.

◉ Local + downloaded code ⌄
Your tool input is not uploaded.

JSON Schema validator loads from WhaleTu and runs in this tab.

Ordinary page requests may still appear in access logs. Tool content is excluded from Analytics.See privacy proof →
✓ No account↯ Mobile ready◆ Professional workspace
Ready to start
Your input stays in this tab
Local validation · Draft 2020-12 · no remote $ref fetching
JSON Schema Draft 2020-12. Formats and remote references are not loaded.
Data and schema stay in this tab.
HOW IT WORKS

How to use JSON Schema Validator

  1. Enter data and schemaUse separate editors for JSON data and a Draft 2020-12 schema.
  2. Validate locallyAJV compiles the schema without fetching remote references.
  3. Review errorsEvery error includes a data path, keyword and readable message.
Capability limits
  • JSON Schema Draft 2020-12.
  • Remote references and optional format plugins are not loaded.
COMMON QUESTIONS

JSON Schema Validator FAQ

Which JSON Schema version is supported?＋

This page uses AJV's Draft 2020-12 implementation.

Are remote $ref documents downloaded?＋

No. External references are not fetched.

Does JSON Schema Validator upload my data?＋

No. Processing happens inside this browser tab and input content is not included in WhaleTu analytics.

Is JSON Schema Validator free to use?＋

Yes. No account is required.

NEXT IN THIS WORKFLOW

Keep the task moving

These tools share a real input, output or next-step relationship.

{ }
DeveloperPopular

JSON Formatter

Format, validate and inspect JSON data.

Local
±
Developer

JSON Diff

Compare two JSON values after normalizing their structure.

Local
CAPABILITYjson-schema
PROCESSINGlocal resources
INDEX STATUSCanonical tool page
LIMITS2 disclosed