1.qt / qtbaseQt Base (Core, Gui, Widgets, Network, ...)qtc-plus-plusqt5C++No license3.1K total1.2K forks+131 starsfrom 2,977 · score 4.88
2.cycfi / elementsElements C++ GUI librarycppcpp17cpp17-libraryguimodern-cppc-plus-plusC++No license3.7K total284 forks+80 starsfrom 3,654 · score 4.39
3.wxWidgets / PhoenixwxPython's Project Phoenix. A new implementation of wxPython, better, stronger, faster than he was before.pythoncross-platformgui-frameworkgui-toolkitguiwindows+5 morePythonNo license2.6K total563 forks+50 starsfrom 2,583 · score 3.93
4.vurtun / nuklearArchivedA single-header ANSI C gui librarycguinuklearsingle-header-libc89imguiCNo license14K total1.1K forks+43 starsfrom 13,926 · score 3.78
5.wolfgang371 / crymbleuiA nice and fast GUI framework for CrystalCrystalNo license52 total1 forks+24 starsfrom 28 · score 3.22
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8.clj-commons / seesawSeesaw turns the Horror of Swing into a friendly, well-documented, Clojure libraryClojureNo license1.5K total144 forks+3 starsfrom 1,481 · score 1.39