GitHub - ocornut/imgui: Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies

From the collection Best Development Tools & Libraries

Dear ImGui is a bloat-free graphical user interface library for C++. It outputs optimized vertex buffers that you can render anytime in your 3D-pipeline-enabled application. It is fast, portable, renderer agnostic, and self-contained (no external dependencies).

Dear ImGui is designed to enable fast iterations and to empower programmers to create content creation tools and visualization / debug tools (as opposed to UI for the average end-user). It favors simplicity and productivity toward this goal and lacks certain features commonly found in more high-level libraries. Among other things, full internationalization (right-to-left text, bidirectional text, text shaping etc.) and accessibility features are not supported. Dear ImGui is particularly suited to integration in game engines (for tooling), real-time 3D applications, fullscreen applications, embedded applications, or any applications on console platforms where operating system features are non-standard.

• Minimize state synchronization.
• Minimize UI-related state storage on user side.
• Minimize setup and maintenance.
• Easy to use to create dynamic UI which are the reflection of a dynamic data set.
• Easy to use to create code-driven and data-driven tools.
• Easy to use to create ad hoc short-lived tools and long-lived, more elaborate tools.
• Easy to hack and improve.
• Portable, minimize dependencies, run on target (consoles, phones, etc.).
• Efficient runtime and memory consumption.
• Battle-tested, used by many major actors in the game industry.