Open Source · v1.0 · Multi-Platform
ByJTT UI
A 2026-ready design system for building across every platform. Web, mobile, desktop, and game UI — one brand.
One System, Every Platform
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available Web
Tailwind + Astro
Full component library for web apps and sites.
📱
Q3 2026 Mobile
Flutter
Material-style widgets for iOS and Android.
🖥️
Q4 2026 Desktop
PowerShell WinForms
Native Windows GUI components.
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TBD Roblox
Luau
Game UI components for Roblox Studio.