Full Python GUI apps in the browser – no JavaScript, no server
I have been working on Dear ImGui Bundle since 2022, but it is the first time I talk about it here. It is a framework around Dear ImGui for building interactive applications in Python and C++. It comes with batteries included: Plotting, image inspection, Markdown, node editors, 3D gizmos, knobs, toggles, etc. https://imgui-bundle.pages.dev It now also runs smoothly in the browser via pyodide: The playground below is a python app running in your browser (no server, no JavaScript). You can edit the code on the left and click Run. It even works on mobile.…
In plain words
Dear ImGui Bundle is a framework for building interactive applications in Python and C++. It includes built-in components like plotting, image inspection, Markdown editors, node editors, 3D gizmos, and UI controls. The framework now runs directly in web browsers through Pyodide, allowing users to write and execute Python GUI code without JavaScript or a server backend. It works on desktop and mobile devices, with an emphasis on readable and hackable code.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
I have been working on Dear ImGui Bundle since 2022, but it is the first time I talk about it here. It is a framework around Dear ImGui for building interactive applications in Python and C++. It comes with batteries included: Plotting, image inspection, Markdown, node editors, 3D gizmos, knobs, toggles, etc. https://imgui-bundle.pages.dev It now also runs smoothly in the browser via pyodide: The playground below is a python app running in your browser (no server, no JavaScript). You can edit the code on the left and click Run. It even works on mobile. https://imgui-bundle.pages.dev/playground I have a strong interest in providing tools that help others express their creativity. This project aims to be a step in this direction as it helps develop GUIs where the code is extremely readable & hackable. Some of the goals it addresses: - Bring true Immediate Mode GUI to Python and C++ - A versatile range of high quality libraries: Widgets, Plots, Image Analysis, Node edition, markdown rendering - Multiplatform apps in C++: works on all platform in C++ (desktop, mobile, emscripten) - Deploy python apps to the web - High quality python bindings that are always up-to-date (because they are auto-generated) - Smooth transition between C++ and Python (same APIs for both) I'd be happy to answer questions!
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