Dear ImGui
MIT bloat-free immediate-mode GUI for C++ tools
Libraries / Libraries · OSS/MIT · 76.7k
Reviewed 2026-10-18 · last push 2026-10-16 · repo checked 2026-10-19
What's Good
MIT (ocornut/imgui), release v1.93.0 (2026-10-14), developed since 2014. Renderer- and platform-agnostic, with official backends for DirectX, Vulkan, Metal, OpenGL, WebGPU, SDL, GLFW and more, and bindings for many languages. No dependencies beyond a C++ compiler, so you drop the source files into your project. Huge ecosystem of plots, node editors and widgets. ★~76.7k.
The Catch
It is built for tools and debug UIs, not polished end-user interfaces: theming, accessibility and text input for complex languages are limited. Immediate mode means you manage your own state and layout in code. Docking and multi-viewport live on a separate branch.
Verdict
The default for in-game tools and developer UIs in C++.
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