Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies
C-Rank Grade: A (Welcoming) - 59/100
External PR Merge Rate: 12%
Response Time: -
First Timer Success: 9%
ocornut/imgui has a recorded first-timer success rate of 9.1%. Repositories ranked A typically provide actionable feedback during code reviews and actively nurture new community contributors.
Maintainers in ocornut/imgui respond to incoming external pull requests in approximately 0.0 hours on average. Keeping PRs focused on single tasks and ensuring tests pass helps maintainers review faster.
The C-Rank™ system evaluates GitHub projects on a 0–100 scale using real data: PR merge rates, review turnaround time, active maintainer presence, and first-time contributor success. A score of 58.7 places ocornut/imgui in the A tier.
The external contributor pull request merge rate for ocornut/imgui is 11.8%, based on public PR activity from non-core contributors.
ocornut/imgui currently has 2 active issue(s) tagged with beginner-friendly labels like "good first issue", "beginner", or "up-for-grabs".
Balanced & professional review environment in ocornut/imgui. Maintains strict focus on technical quality and test standards.
Average Response Latency
Tracks hours until a maintainer leaves a review, comment, or PR response.
External Acceptance Rate
Percentage of community pull requests successfully merged into main.
First PR Conversion
Rate at which developers submitting their first repository PR succeed.
Show contributors that your repository actively reviews and merges external pull requests.
[](https://getmerged.abhishekco.de/ocornut/imgui?utm_source=github&utm_medium=badge)
Historical health & responsiveness evolution
External PR acceptance
First PR success rate
50% receive response in
90% receive response in
Maintainer review activity heatmap & prime window prediction
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Detected: UTC
Maintainers are most responsive around 10:00 UTC (10:00 UTC in your timezone). Recommended submission window is Monday - Wednesday from 10:00 to 14:00 UTC (10:00 - 14:00 UTC local).
Maintainer Strategy: Maintainer Sweet Spot: PRs under 150 lines merge in ~16 hours (15% approval). Large PRs (>500 lines) take ~115 hours (15% approval). Keep your diff compact for rapid review.
Version/Branch of Dear ImGui: Version 1.92.7, Branch: docking Back-ends: imgui_impl_vulkan.cpp Compiler, OS: MSVC 2026 Full config/build information: No response Details: When I try to use multiveiewports by enabling it trough the flag it always give me a validation layer several times because of bad usage of semaphore. [ERROR: Validation] - VUID-vkQueueSubmit-pSignalSemaphores-00067 vkQueueSubmit(): pSubmits[0].pSignalSemaphores[0] (VkSemaphore 0x790000000079) is being signaled by VkQueue 0x1c2761050e0, but it may still be in use by VkSwapchainKHR 0x670000000067. Most recently acquired image indices: 2, 1, 0, [1], 0, 0, 0, 0. (Brackets mark the last use of VkSemaphore 0x790000000079 in a presentation operation.) Swapchain image 1 was presented but was not re-acquired, so VkSemaphore 0x790000000079 may still be in use and cannot be safely reused with image index 0. Vulkan insight: See https://docs.vulkan.org/guide/latest/swapchain_semaphore_reuse.html for details on swapchain semaphor
Version/Branch of Dear ImGui: Version 1.92.6, Branch: docking Back-ends: imgui_impl_Vulkan.cpp + imgui_impl_win32.cpp Compiler, OS: Windows 11 + MSVC 2022 Full config/build information: Dear ImGui 1.92.6 WIP (19259) -------------------------------- sizeof(size_t): 8, sizeof(ImDrawIdx): 2, sizeof(ImDrawVert): 20 define: __cplusplus=199711 define: _WIN32 define: _WIN64 define: _MSC_VER=1939 define: _MSVC_LANG=201703 define: IMGUI_HAS_VIEWPORT define: IMGUI_HAS_DOCK IM_ASSERT: runs expression: OK. expand size: OK -------------------------------- io.BackendPlatformName: imgui_impl_win32 io.BackendRendererName: imgui_impl_vulkan io.ConfigFlags: 0x00000483 NavEnableKeyboard NavEnableGamepad DockingEnable ViewportsEnable io.ConfigDpiScaleFonts io.ConfigDpiScaleViewports io.ConfigViewportsNoDecoration io.ConfigViewportsNoDefaultParent io.ConfigNavCaptureKeyboard io.ConfigInputTextCursorBlink io.ConfigWindowsResizeFromEdges io.ConfigMemoryCompactTimer = 60.0 io.BackendFlags: 0x00003C1E H
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When evaluating whether to contribute to ocornut/imgui, response velocity and maintainer engagement are crucial. GetMerged continuously tracks pull request trajectories, first-comment latency, and code review rounds to help developers avoid submitting pull requests to backlogged repositories.
Currently, maintainers of ocornut/imgui acknowledge new external contributions in approximately -. Out of all submitted pull requests from non-core authors in the last 180-day window, 11.8% were successfully merged into the primary branch.
ocornut/imgui has a recorded first-timer success rate of 9.1%. Repositories ranked Welcoming typically provide actionable feedback during code reviews and actively nurture new community contributors.
The initial maintainer response time averages ~-. Keeping PRs scoped to single concerns and ensuring CI checks succeed will optimize review turnaround.
The C-Rank™ index scores repositories on a 0 to 100 scale using an objective formula: external PR merge rates, initial response speed, active maintainer count, and first-time contributor retention. A score of 58.7 places ocornut/imgui in the Welcoming tier.
The external pull request merge rate is 11.8%. GetMerged isolates non-core community contributions so external developers get an accurate benchmark of PR acceptance probability.
Yes, ocornut/imgui currently has 2 active issue(s) tagged with beginner-friendly labels. You can inspect these directly from the repository issues tab.
All metrics displayed for ocornut/imgui are automatically retrieved via the public GitHub API and recalculated daily. Insider pull requests submitted by repository owners or organization members are excluded from merge rate calculations to preserve objective external contributor statistics.