Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies

Cross platform GUI toolkit in Go inspired by Material Design

A cross-platform GUI library for Rust, inspired by Elm

A toolkit with common assertions and mocks that plays nicely with the standard library

A React-based UI toolkit for the web

Slint is a declarative GUI toolkit to build native user interfaces for Rust, C++, or JavaScript apps.

An powerful enhanced toolkit of MyBatis for simplify development

Dear PyGui: A fast and powerful Graphical User Interface Toolkit for Python with minimal dependencies

Create web-based user interfaces with Python. The nice way.

Cross Platform Terminal UI toolkit for .NET

A BPMN 2.0 rendering toolkit and web modeler.

🌋 A toolkit to quickly build apps with React, GraphQL & Meteor

🔧 Electron based open source toolbox, free integration of rich plug-ins. 基于 electron 的开源工具箱，自由集成丰富插件。

A toolkit for React, Preact, Inferno & vanilla JS apps, React libraries and other npm modules for the web, with no configuration (until you need it)

FireBug for designers › Edit any webpage, in any state https://a.nerdy.dev/gimme-visbug

Lightweight Lenovo Vantage and Hotkeys replacement for Lenovo Legion laptops.

Liveblocks is the platform for adding collaborative editing, comments, and notifications into your application.

A delightful toolkit for building TypeScript-powered command-line apps.

Dynamic Instrumentation Tool Platform

An open-source digital image forensic toolset