DevScratchpad

JSON Schema Validator (Offline & Secure)

Validate JSON data against JSON Schema specs entirely in your browser using AJV. Free, private, and fast.

How to use

  1. Paste your JSON data in the left editor.
  2. Paste your JSON Schema in the right editor.
  3. Validation runs instantly, highlighting exact lines with schema violations.

Technical Considerations

  • Unsupported external schema references ($ref).

100% Client-Side Privacy: This tool executes entirely within your browser's runtime environment. No payloads, tokens, or inputs are transmitted to external servers. Safe for offline usage.

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