mikke89/RmlUi

Health v2 · maintenance only

Adoption not part of the score

4387 stars · 462 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

RmlUi is a C++ user interface library based on HTML/CSS standards, forked from libRocket, that turns HTML/CSS-like markup into vertices and draw commands for games and applications. It includes its own layout engine, animation and transform support, a full control set, data binding, and optional Lua scripting.

Use cases

• build game menus and HUDs with HTML/CSS-like markup
• create C++ application UIs without embedding a browser engine
• integrate a lightweight UI layer into a custom game engine renderer
• style interfaces with CSS-like stylesheets and animations
• add data-bound UI with MVC-style data binding in C++
• script UI logic with Lua

When to choose

• you need a performant, lightweight UI for a C++ game or real-time application
• you want HTML/CSS authoring ergonomics without shipping a web browser
• you control your own render loop and want to bring your own renderer
• you need cross-platform UI including consoles and mobile

When to avoid

• you need a full web browser with JavaScript and network stack
• you want a self-contained GUI framework that handles rendering and windowing for you
• your project is not C++ (or Lua) based
• you need accessibility features typical of native UI toolkits

Facets

library · maturity active

ui-components templating animation graphics cross-platform web-development desktop-applications cpp cross-platform windows html-css-ui game-ui librocket-fork layout-engine rml game-development linux macos android ios

Member repositories

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