TomSchimansky/CustomTkinter Alternatives

Choose when your application is in Go and you need a native cross-platform GUI without a Python runtime.

Cross platform GUI toolkit in Go inspired by Material Design

Choose when you want a C#/XAML codebase that targets desktop, mobile, and web from one project.

Open-source platform for building cross-platform native Mobile, Web, Desktop, and Embedded apps from a single C#/XAML codebase. Work from any IDE/CLI with Hot Reload, Visual Designer, MCPs, and Skills built for modern .NET workflows. 200M+ NuGet downloads.

Choose when you are willing to use Dart and need a polished UI engine across desktop and mobile rather than Python/Tkinter.

Flutter makes it easy and fast to build beautiful apps for mobile and beyond

Choose when you want to build the desktop UI with HTML/CSS/JS and can accept a bundled Chromium runtime.

:electron: Build cross-platform desktop apps with JavaScript, HTML, and CSS

Choose when you want a declarative, natively rendered UI toolkit that provides official Python bindings without using Tkinter.

Slint is an open-source declarative GUI toolkit to build native user interfaces for Rust, C++, JavaScript, or Python apps.

Choose when you are already in the Rust/GPUI ecosystem and need a component set for that environment.

Rust GUI components for building fantastic cross-platform desktop application by using GPUI.

Choose when you are targeting constrained or embedded platforms and a tiny header-only C++ GUI library is acceptable.

✔️The smallest header-only GUI library(4 KLOC) for all platforms

Choose when you want native desktop widgets with React-style APIs in a Node/TypeScript stack.

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

Choose when you prefer a SwiftUI-style declarative UI in a Swift project instead of Python/Tkinter.

A cross-platform declarative UI framework, inspired by SwiftUI.

Choose when you want a canvas-native, Python/Tkinter-based UI framework with a different widget API and smaller footprint.

A lightweight UI framework based on tkinter with all UI drawn in Canvas!🎨

Choose when you want Bootstrap-inspired themes and widgets while keeping standard Tkinter/ttk-compatible APIs.

Modern themes for Tkinter. Sleek, responsive styles inspired by Bootstrap. Includes ready-to-use widgets, 30+ themes, and tools for building beautiful, cross-platform desktop apps with ease.

Use to give an existing ttk-based Tkinter app a modern Sun Valley look without replacing widgets with CustomTkinter classes.

A gorgeous theme for Tkinter/ttk, based on the Sun Valley visual style ✨

Use when you need a Fluent-inspired ttk theme for standard Tkinter widgets and do not want to migrate to CustomTkinter.

A stunning modern theme for ttk inspired by Fluent Design 💠

Use when you want an Excel-like ttk theme on existing widgets instead of adopting CustomTkinter controls.

A beautiful modern theme for ttk, inspired by MS Excel's look 🌲🌳