Open-source alternatives to Pywebview

This project is a cross-platform UI framework and native desktop GUI library. It provides a unified set of instructions to render native windows, forms, and layouts across different operating systems by mapping high-level instructions to the native widgets and controls of the host environment. The toolkit includes a vector graphics engine for rendering custom shapes, gradients, and high-density images using brushes and matrices. It also serves as a native dialog provider for system-level operations such as file path selection and message box alerts. The library covers a broad range of GUI co

PySimpleGUI is a Python framework used to build graphical user interfaces. It functions as an adapter-based wrapper that maps multiple GUI toolkit APIs into a single unified interface, allowing for backend-agnostic development across tkinter, Qt, or WxPython. The project uses a layout-based UI definition system where visual hierarchies are defined via nested lists rather than coordinate-based placement. It employs an event-driven polling loop and string-based event mapping to associate interface elements with specific user actions. The framework supports cross-framework GUI design and intera

Fyne is a cross-platform graphical user interface toolkit for the Go programming language. It provides a comprehensive framework for building native applications that run on desktop, mobile, and web environments from a single codebase. The toolkit centers on a canvas-based rendering engine and a device-independent layout engine, ensuring that visual elements maintain consistent dimensions and behavior across diverse operating systems and screen densities. The project distinguishes itself through a reactive data-binding system that automatically synchronizes application state with interface co

Build performant, native and cross-platform desktop applications with native React powerful CSS like styling.🚀

Revery is a cross-platform GUI toolkit and functional UI framework used to build native desktop applications for Windows, macOS, and Linux. It utilizes the Reason functional programming language to compile code into machine-level instructions for native execution. The framework employs a component-based model to manage user interfaces, mapping functional components to the underlying native operating system widgets. This approach ensures that applications maintain native performance, behavior, and a consistent look and feel across different operating systems. The toolkit covers the full appli

Ultralight is a GPU-accelerated HTML UI renderer and C++ framework designed for embedding web interfaces within native applications. It functions as a lightweight web browser and cross-platform UI framework that renders HTML, CSS, and JavaScript directly to CPU pixel buffers or GPU textures. The project distinguishes itself by allowing developers to emit raw geometry and draw calls via a custom GPU driver interface, eliminating intermediate CPU bitmaps. It provides deep integration between native logic and web environments through a C++ web interface library that binds native functions and ob

go-astilectron is a cross-platform GUI framework and binding that enables the creation of desktop software by combining a compiled Go backend with an Electron frontend. It functions as an inter-process communication bridge, utilizing an asynchronous messaging system to exchange JSON events and synchronize state between the Go process and the JavaScript user interface. The project provides a native desktop API wrapper to orchestrate system-level features from the backend. This includes the ability to manage browser windows, construct native application menus, and control system tray icons and

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

Eel is a framework for creating desktop applications using a Python backend and a web-based frontend. It acts as a bidirectional bridge between Python and JavaScript, allowing developers to build graphical user interfaces with HTML and JavaScript that communicate with local system logic. The project facilitates two-way communication by enabling the exposure of Python functions to the browser and allowing the backend to trigger JavaScript functions. It uses a local server to render web interfaces as standalone desktop windows and provides tools to bundle the Python code and web assets into a s

libui is a native C GUI library and cross-platform framework used to build desktop applications. It provides a unified C abstraction layer and a native widget toolkit that maps directly to the host operating system's original controls, windows, and menu bars. The project functions as a portable UI wrapper, employing platform-specific backends and a native-API wrapper to maintain visual and behavioral fidelity across different operating systems. It utilizes a C-language binding layer to ensure portability across various compilers and targets. The library covers native interface construction a

An easy to install gem version of the Ruby bindings to Qt

Declarative User Interfaces for Python

Cross-platform Go library to place an icon in the host operating system's taskbar.

systray is a Go library used to create and manage icons and menus within the operating system notification area. It functions as a cross-platform GUI library that provides a persistent application entry point and a notification area menu manager. The library enables the creation of hierarchical menus and custom tray icons across different desktop operating systems. It supports the use of nested submenus and allows for the styling of individual menu entries with custom images. The toolset covers a range of interaction capabilities, including the management of menu item states through checked

A library to notify about any (pluggable) activity on your machine, and let you take action as needed

DSL Framework consisting of a DSL Engine and a Data-Binding Library used in Glimmer DSL for SWT (JRuby Desktop Development GUI Framework), Glimmer DSL for Opal (Pure Ruby Web GUI), Glimmer DSL for LibUI (Prerequisite-Free Ruby Desktop Development GUI Library), Glimmer DSL for Tk (Ruby Tk Desktop Development GUI Library), Glimmer DSL for GTK (Ruby-GNOME Desktop Development GUI Library), Glimmer DSL for XML (& HTML), and Glimmer DSL for CSS

Golang bindings of Sciter: the Embeddable HTML/CSS/script engine for modern UI development

This project is a Go WebAssembly frontend framework designed for building interactive web applications. It provides a toolkit for executing Go code directly in the browser to handle client-side logic and user interface development. The framework functions as a declarative UI library and a progressive web app toolset. It enables the creation of installable applications that can operate in standalone windows and maintain offline functionality. The system manages browser-side application development through a component-based view hierarchy and a declarative syntax for defining UI elements. It i

A set of bindings for the GNOME libraries to use from Ruby.

Build cross platform GUI apps with GO and HTML/JS/CSS (powered by nwjs)

Flet is a cross-platform framework that enables developers to build interactive desktop, mobile, and web applications using only Python. By utilizing a declarative programming model, it allows for the construction of complex user interfaces through a hierarchical structure of components, removing the need for specialized knowledge of web-specific languages like HTML, CSS, or JavaScript. The framework distinguishes itself by offloading visual rendering to a high-performance graphics engine while maintaining application logic within a centralized server-side environment. This architecture synch

Toga is a cross-platform application framework and native GUI toolkit for Python. It serves as a multi-platform frontend wrapper that allows a single codebase to be deployed across macOS, Windows, Linux, Android, and iOS. The toolkit functions as a native widget UI library, mapping high-level Python interface definitions directly to the host operating system's own visual components. This ensures that applications use native system widgets to match the look and feel of the target environment rather than relying on custom drawing libraries. The framework covers cross-platform development for d

gosx-notifier is a Go framework for sending desktop notifications to OSX 10.8 or higher

Go bindings for GTK3

Robotgo is a cross-platform desktop automation framework for the Go programming language. It provides a comprehensive toolkit for programmatically interacting with graphical user interfaces, enabling developers to simulate human input, manage application windows, and monitor system-wide hardware events. The library distinguishes itself through its low-level system integration, utilizing a foreign function interface to interact directly with native operating system APIs. It employs pixel-buffer memory mapping and real-time screen capture to perform visual element identification, allowing for i

macOS Sleep/ Wake notifications in golang

NiceGUI is a web framework that enables the creation of interactive user interfaces and dashboards using only Python. It functions as a reactive system, automatically synchronizing state between the server and the browser to update interface elements in real time without requiring manual intervention. The framework allows developers to build complex web applications by writing standard Python logic, eliminating the need to author custom HTML, CSS, or client-side scripts. It manages the orchestration of the interface by dynamically injecting necessary assets and reconciling changes to the comp