JSON Generator: Mock Data & Anonymization
Your precise tool for JSON data
Configurator
Generate production-ready test datasets tailored to your API schemas. Define record counts, field types, and distribution rules without leaving your browser.
Schema Mapping
Import OpenAPI 3.0 specifications or paste raw JSON templates. The engine auto-detects nested objects, arrays, and required fields to accelerate setup.
Field Overrides
Apply regex patterns, Faker.js providers, or custom value pools to specific keys. Control string lengths, numeric ranges, and ISO-8601 date formats per endpoint.
Export & Validation
Download minified or pretty-printed JSON. Built-in JSON Schema validation catches type mismatches before you push to staging environments.
Privacy Note
All data generation happens locally in your browser memory. No payloads are transmitted to external servers, ensuring full compliance with GDPR and internal security policies.
When processing sensitive staging data, the anonymization module replaces PII fields with deterministic hashes or randomized equivalents. Audit logs remain client-side, and session storage clears automatically upon tab closure. Enterprise teams can enforce mandatory masking rules via configuration files deployed to internal repositories.