Awesome GitHub RepositoriesCustom Widget Frameworks

Iced is a cross-platform GUI library for Rust designed for building native desktop applications. It functions as a reactive toolkit that manages application state by mapping user interactions to messages, which then trigger automatic view refreshes. The framework utilizes a rendering system that supports both hardware-accelerated GPU graphics and software backends to ensure compatibility across multiple operating systems. It implements a reactive model inspired by the Elm architecture to coordinate state updates and view reconciliation. The toolkit includes a flexible layout engine and a mod

This project is a self-hosted dashboard portal designed to centralize access to internal applications and infrastructure services. It functions as a configuration-driven platform that automatically discovers and organizes services from container runtimes and cluster management systems, presenting them within a unified, customizable web interface. The system distinguishes itself through a declarative widget framework that allows users to construct dashboard components by mapping raw API responses to visual elements. It includes a secure internal proxy layer that handles authentication, header

Theia is a modular framework designed for building professional-grade development environments that function as both local desktop applications and remote browser-based services. It provides a comprehensive toolkit for constructing specialized coding tools, allowing developers to assemble custom interfaces and backend logic through a flexible, contribution-based architecture. The platform distinguishes itself through a highly extensible workbench that supports the integration of existing third-party editor plugins and standard language servers. By utilizing a dependency injection container an

Kivy is a cross-platform Python GUI framework used to build graphical user interfaces that run on desktop and mobile operating systems from a single codebase. It functions as a multi-touch UI library and a custom widget toolkit, providing a development environment for packaging Python applications into binary installations for Android and iOS. The framework is distinguished by its ability to handle complex multi-touch gestures and interactive input across various devices. It utilizes a specialized domain language for declarative UI construction to separate visual layout definitions from Pytho

Seelen-UI is a graphical shell and window management utility for Windows that provides a modular, keyboard-driven desktop environment. It enables users to organize application windows through automated tiling, stacking, and floating layouts, while offering a framework for creating interactive desktop widgets using web technologies. The project distinguishes itself by integrating a web-based rendering engine that bridges system-state data to HTML and CSS interfaces, allowing for highly customizable widgets and dynamic visual themes. It features real-time wallpaper analysis to automatically syn

CustomTkinter is a Python GUI framework and library used to build modern desktop applications. It serves as a toolkit for creating cross-platform graphical interfaces with a specific focus on theme-aware components and high-resolution display support. The library provides a set of widgets based on the Tkinter framework that synchronize with operating system appearance settings. It includes a theme engine to manage light and dark modes and integrates system-level scaling to ensure visual consistency across different monitors and display densities. The toolkit covers graphical interface compos

react-color is a React color picker library and customizable UI component kit. It provides a collection of interactive color selection components and visual pickers for web applications, allowing users to choose and preview colors. The library includes pre-made user interfaces that mimic the color selection experiences of professional design tools like Photoshop, Sketch, and Chrome. It also features transparency-aware color pickers that render checkerboard backgrounds to visually represent colors containing alpha channel transparency. The project provides granular building blocks, such as hu

CoreUI Free Bootstrap Admin Template is a pre-built, responsive admin dashboard template built on Bootstrap 5 for constructing back-office interfaces. It provides a library of UI components with native wrappers for React, Vue, and Angular applications, alongside a Sass-based theming system for managing brand colors, dark mode, and design tokens via variables and CSS custom properties. The template includes a set of advanced form controls such as autocomplete, date pickers, and multi-step wizards with built-in validation, and supports switching the entire interface between built-in dark and li

Eww is a declarative framework for creating custom graphical desktop widgets and status bars on Linux. It functions as a desktop widget toolkit that operates independently of the window manager, allowing users to define interface elements through a dedicated configuration language and style them using a cascading stylesheet system. The project utilizes a client-server daemon architecture to manage the lifecycle of these components, ensuring that state is maintained across the desktop environment. By leveraging a reactive state binding system, the interface updates automatically in response to

Grist is a relational spreadsheet platform that combines the flexibility of a spreadsheet with the power of a relational database. At its core, it manages structured data across multiple linked tables, using a relational database engine to organize information while providing a familiar grid interface. The platform supports Python-based formulas for complex calculations and data transformations, with automatic recalculation when referenced cells change. The system is designed for self-hosted deployment, storing data in either portable SQLite files or enterprise-grade PostgreSQL databases. It

EmDash is an open-source content management system built on Astro that combines a visual admin panel with a plugin-driven architecture and server-side rendering. It provides a complete content management system with structured content modeling, a rich text editor using Portable Text format, and a TypeScript API for type-safe content queries. The system supports authentication through passkeys, OAuth 2.1, and external providers, with role-based access control and fine-grained permission scopes. What distinguishes EmDash is its plugin development framework, which supports both native plugins ru

Pock is a Touch Bar widget suite for MacBook Pro that mirrors the macOS Dock onto the Touch Bar, displays system status information, and provides media playback controls without requiring third-party software. It includes a configurable widget manager that lets users add, remove, and arrange interactive widgets directly on the Touch Bar. The project offers a persistent ESC key overlay that remains visible across all widget states and app contexts, along with gesture-driven controls for adjusting system brightness and volume through long press and slide interactions. Media playback is managed

Druid is a native user interface toolkit and 2D graphics engine for the Rust programming language. It functions as a retained-mode, data-driven framework for building graphical user interfaces that run across Linux, macOS, and web browsers via WebAssembly. The toolkit distinguishes itself through a data-first approach to UI design, utilizing lenses to isolate subsets of global application state and synchronize them with specific widgets. This allows the visual layout to update automatically when the underlying data model changes. Its capability surface includes a constraint-based box layout

CalendarView is a high-performance Android UI component designed for displaying dates and navigating chronological views. It functions as a canvas-based widget that utilizes direct drawing instead of standard list views to minimize memory usage and ensure fast rendering of complex date interfaces. The component provides a programmable interface for switching between month, week, year, and lunar views. It differentiates itself through a pluggable customization system that allows developers to override the drawing logic for dates, text, event markers, and selection layouts. The library support

AndroidNote is a technical knowledge base and reference resource for Android development. It provides comprehensive guidance on application architecture, custom view development, and advanced graphics programming. The project is distinguished by its depth in visual implementation, covering pseudo-3D perspective projections via virtual cameras and complex 2D rendering using Bézier curves and PorterDuff color blending. It also provides detailed methodologies for app modularization and the management of internal libraries through private Maven repositories and JitPack. The reference surface ext

This project is an open-source 3D game engine designed for building high-fidelity games, simulations, and cinematic environments. It functions as a robotics simulation platform with native integration for ROS 2 to model robot controllers and sensors. The engine features a multi-threaded Forward+ physically based renderer that supports hardware-accelerated ray tracing and global illumination. The system is built on a modular extension architecture using Gems to add or replace features without modifying core binaries. It includes a native SDK for AWS cloud integration, enabling IAM authenticati

litegraph.js is a JavaScript dataflow framework and visual node graph engine used to define programmable logic and data flow. It provides a node-based visual programming tool for designing complex logic through connected functional blocks. The library allows for the creation of hierarchical logic by nesting multiple nodes into recursive subgraphs. It also supports the development of custom node types with unique inputs and outputs, as well as custom widgets and live views that can hide the underlying graph structure to present a visual interface. The engine enables the execution of logic gra

PyQt-Fluent-Widgets is a Python GUI component library and framework extension that provides a set of pre-styled UI components following modern Fluent design standards. It replaces standard PyQt controls with a specialized widget set designed for building contemporary desktop applications. The library distinguishes itself by offering advanced layout patterns, such as waterfall grids, loading skeleton screens, and split-view application shells. It provides a comprehensive collection of high-level interface elements, including navigation menu systems, configuration setting cards, and complex vie

Elsa Core is a workflow engine framework designed for defining, executing, and managing long-running business processes. It functions as a distributed workflow orchestrator and event-driven trigger system, capable of operating as a multi-tenant platform with secure data isolation. The project distinguishes itself through a flexible approach to workflow definitions, supporting a visual drag-and-drop designer, programmatic C# definitions, and portable JSON specifications. It provides a highly extensible architecture allowing for the development of custom activities and the use of a dynamic expr

Riverpod is a reactive state management framework for Dart that manages application state through providers which automatically track dependencies and rebuild dependents when values change. It functions as an asynchronous data caching library, caching results of async operations and exposing loading, error, and data states to widgets without manual future handling. The framework includes a provider composition system that combines multiple providers into derived values that recompute automatically when any dependency changes, along with code generation for state providers that reduces boilerpl