Awesome GitHub RepositoriesDeclarative Layout Frameworks

Impress.js is a browser-based presentation engine that transforms standard document elements into interactive, three-dimensional slide decks. It functions as a declarative layout framework, allowing users to define spatial relationships and visual perspectives for content within a coordinate-based canvas. By leveraging the browser's native rendering capabilities, it enables the creation of non-linear slide decks that utilize hardware-accelerated transformations for movement and perspective shifts. The framework distinguishes itself through a state-driven controller that manages active content

React Grid Layout is a toolkit for building draggable, resizable, and responsive dashboard interfaces. It functions as a coordinate-based grid system that reconciles component positions and dimensions through declarative metadata, allowing developers to manage complex collections of UI elements that users can interact with directly. The library distinguishes itself through an automated packing algorithm that maintains structural integrity by shifting elements to fill gaps and resolving overlaps. It supports responsive design by monitoring container width changes against pre-defined breakpoint

Clay is a header-only layout engine designed for C and C++ applications that computes element positions and dimensions using a declarative box model. By operating as an immediate-mode framework, it calculates interface geometry dynamically on every frame, allowing for the creation of responsive and fluid user interfaces without maintaining persistent state. The library functions as a platform-agnostic tool that decouples layout logic from specific graphics backends. It provides a flexible coordinate system that supports layered elements, such as modals and tooltips, alongside standard documen

Terminal.Gui is a cross-platform .NET toolkit for building interactive text-based user interfaces. It provides a component-based architecture, a terminal rendering engine, and a declarative layout system to create console applications that run consistently across Windows, macOS, and Linux. The framework distinguishes itself with a comprehensive set of interactive console widgets, including data grids, hex editors, and hierarchical tree components. It supports advanced visual capabilities such as 24-bit True Color, Sixel image support, and a relative-coordinate layout system that adapts to ter

Cartography is a declarative layout engine and constraint management framework for Swift. It provides a domain-specific language to define, group, and prioritize user interface layout rules, abstracting the process of positioning and aligning visual components. The framework distinguishes itself through a fluent API and the use of overloaded operators to define relationships between view attributes. It enables the bundling of multiple layout rules into single units, allowing for the dynamic swapping of constraint groups at runtime to transition views between different positional states. The