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High-Performance Commercial Native Suite

JSON Schema Draft 7/2020-12 Validator & TypeScript Generator

Validate JSON payloads against Draft 7/2020-12 schemas with inline error annotations, generate strict TypeScript interfaces and C++ structs, and synthesize mock data.

Buy Lifetime License ($24.99) Test Live Engine Demo
Competitor Comparison Why JsonSchema Forge Is Cheaper & Better
Save $335/yr vs Stoplight Studio / Cloud Schema Tools ($30/user/mo)
Traditional Alternative:
Stoplight Studio / Cloud Schema Tools ($30/user/mo)
$360/year recurring subscription
Cloud platform lock-in, sluggish web interfaces, requires internet connectivity to validate schema structures
Vivian Commercial Engine:
$24.99 One-Time Perpetual
100% Offline Air-Gapped C++17
One-time $24.99 perpetual license, 100% offline, instant code generation (TypeScript/C++/Python), zero subscription
Native Desktop Application • Real GTK3 Program Screens
Live Compiled Binary Technical Wiki →
JsonSchema Forge Native UI Showcase

Core Engine Capabilities

  • Comprehensive JSON Schema Draft 7 and Draft 2020-12 validation
  • Export strict TypeScript interfaces and C++ nlohmann struct bindings
  • Synthetic data generator that generates mock records adhering to schema regex constraints
  • Dual-pane editor with live visual syntax and error markers

Dual GUI & Console Interface

Designed for automated batch pipelines and power users alike. Features a high-performance native desktop GUI (GTK3 on Linux / Win32 on Windows) alongside a headless command-line interface with scriptable switches.

# Run native desktop GUI:

./jsonschema --gui

# Headless batch processing:

./jsonschema --codegen-sample

Interactive Engine Testbed

Microsecond Benchmarking

Test the live commercial engine execution in your browser through Cloudflare Cloud Platform:

Click 'Execute Engine Test' to dispatch benchmark telemetry...
Perpetual Commercial License
$24.99 / one-time