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Top 23 C++ Cplusplu Projects
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Project mention: Ask HN: What are good high information density UIs (screenshots, apps, sites) | news.ycombinator.com | 2025-05-08
I find the imgui UIs to be very high density (https://github.com/ocornut/imgui and the gallery issues) See for example the tracy profiler: https://github.com/wolfpld/tracy. It seems the game dev community has pretty powerful tools to understand and interrogate their work.
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oceanbase
OceanBase is an enterprise distributed relational database with high availability, high performance, horizontal scalability, and compatibility with SQL standards.
OceanBase GitHub: github.com/oceanbase/oceanbase
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Magic Enum C++
Static reflection for enums (to string, from string, iteration) for modern C++, work with any enum type without any macro or boilerplate code
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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The XRP Ledger (XRPL) is constantly evolving to meet the needs of the community. Although the most visible of these changes are features, looking back at the last two years of development in the rippled GitHub repository about 80% of pull requests actually focused on non-feature work. As we do not have a public roadmap for these kinds of efforts, in this blog post we would like to provide transparency by highlighting what we have recently done and what we are currently working on to enhance the stability, scalability, and resiliency of the ledger.
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Project mention: FLUX1.1 [pro] – New SotA text-to-image model from Black Forest Labs | news.ycombinator.com | 2024-10-03
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xray-16
Improved version of the X-Ray Engine, the game engine used in the world-famous S.T.A.L.K.E.R. game series by GSC Game World. Join OpenXRay! ;)
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This is great.
If you're into these retro games there's a couple of others that have been fun:
Ultimate Stunts: https://www.ultimatestunts.nl/
Descent 3: https://github.com/DescentDevelopers/Descent3 (if you own the original, or on other platforms if you want to buy)
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See some sample code from EPIP[1]
Also reminiscent of zig zag encoding for ints.
[1]: https://github.com/adnanaziz/EPIJudge/blob/master/epi_judge_...
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thread-pool
BS::thread_pool: a fast, lightweight, modern, and easy-to-use C++17 / C++20 / C++23 thread pool library
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
C++ Cplusplus discussion
C++ Cplusplus related posts
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XRPL Stability and Scalability Efforts
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My TV started playing a video in full screen by itself. What happened?
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'No Problem' Word Processor Poses a Problem for Former President Carter (1981)
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Show HN: ImPlot3D – A 3D Plotting Library for Dear ImGui
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Huffman Coding
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Introducing Ripple's Brazil Fund: Fostering XRP Ledger Innovation in Brazil
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Speeding up C++ build times
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A note from our sponsor - InfluxDB
www.influxdata.com | 19 May 2025
Index
What are some of the best open-source Cplusplu projects in C++? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | imgui | 65,408 |
| 2 | CPlusPlusThings | 41,143 |
| 3 | Apache Thrift | 10,684 |
| 4 | oceanbase | 9,124 |
| 5 | Piccolo | 6,215 |
| 6 | LibreSprite | 5,785 |
| 7 | Magic Enum C++ | 5,411 |
| 8 | Apache Mesos | 5,313 |
| 9 | rippled | 4,859 |
| 10 | Boost.Beast | 4,542 |
| 11 | cppinsights | 4,265 |
| 12 | stable-diffusion.cpp | 4,073 |
| 13 | cppcoro | 3,549 |
| 14 | CppPrimer | 3,320 |
| 15 | xray-16 | 3,206 |
| 16 | qt-material-widgets | 3,326 |
| 17 | habitat-sim | 2,944 |
| 18 | Descent3 | 2,930 |
| 19 | yocto-gl | 2,864 |
| 20 | EPIJudge | 2,864 |
| 21 | userver | 2,606 |
| 22 | thread-pool | 2,522 |
| 23 | ccache | 2,475 |
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