egui (pronounced "e-gooey") is a simple, fast, and highly portable immediate mode GUI library for Rust. egui runs on the web, natively, and in your favorite game engine (or will soon). egui aims to be ...

Iris is an Immediate mode GUI Library for Roblox, Based on Dear ImGui. It solves the same problems as Dear ImGui: providing a simple and bloat-free UI system, designed for visualisation and debugging.