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Top 23 C++ Framework 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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InfluxDB
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Project mention: Integrating MediaPipe with DeepSeek for Enhanced AI Performance | dev.to | 2025-02-03
Code Examples: Check out the MediaPipe and LLM Integration Examples provided by Google AI Edge.
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Catch
A modern, C++-native, test framework for unit-tests, TDD and BDD - using C++14, C++17 and later (C++11 support is in v2.x branch, and C++03 on the Catch1.x branch)
The C++ testing framework Catch2 enables this kind of testing. The first time I saw it I couldn't figure out how some of the tests would even pass.
It turns out that using some evil macro magic, each test re-runs from the start for each inner section [1]. It also makes deduplicating setup code completely painless and natural.
You just have to get over the completely non-standard control flow. It's a good standard bearer for why metaprogramming is great, even if you're forced to do it in C/C++'s awful macro system.
[1] https://github.com/catchorg/Catch2/blob/devel/docs/tutorial....
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Project mention: A secure embedded operating system for microcontrollers | news.ycombinator.com | 2024-06-02
servos (three at each rotor swashplate), as well as power management and thermal control functions."[0]
[0] https://rotorcraft.arc.nasa.gov/Publications/files/Balaram_A...
[1] https://nasa.github.io/fprime/
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Project mention: Java at 30: The Genius Behind the Code That Changed Tech | news.ycombinator.com | 2025-05-16
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Project mention: Electrobun: Cross-platform desktop applications written in TypeScript | news.ycombinator.com | 2024-11-20
So is it a yet another webview-based framework like NeutralinoJS (https://neutralino.js.org), Electrino (https://github.com/pojala/electrino) or DeskGap (https://deskgap.com)? What's their advantage apart from using Bun instead of Node?
For relly lightweight cross-platform desktop apps better use a non-webview-based native framework like Qt, GTK, wxWidgets or even recently released FLTK 1.4.
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JUCE
JUCE is an open-source cross-platform C++ application framework for desktop and mobile applications, including VST, VST3, AU, AUv3, LV2 and AAX audio plug-ins.
The amount of high performance, production grade, massively tested libraries written in C++ is unbeatable. I will be honest here, it's easier to improve C++ security by implementing a compiler that produces safer C++ (like Typescript to Javascript) than rewriting everything in any other language (Rust, Zig, Odin, whatever).
I mean, could you estimate the cost ($ and time) it would take to rewrite the best audio framework in any other language? (https://juce.com/).
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cef
Chromium Embedded Framework (CEF). A simple framework for embedding Chromium-based browsers in other applications.
Project mention: Show HN: Kando – Do things with utmost efficiency | news.ycombinator.com | 2024-12-27If I got it correctly, they would only do this on Linux to face the performance issues of the native webview. Also, there are ideas of a shared installation: https://github.com/chromiumembedded/cef/issues/3836
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keystone
Keystone assembler framework: Core (Arm, Arm64, Hexagon, Mips, PowerPC, Sparc, SystemZ & X86) + bindings (by keystone-engine)
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xtd
Free open-source modern C++17 / C++20 framework to create console (CLI), forms (GUI like WinForms) and unit test (xUnit) applications and libraries on Windows, macOS, Linux, iOS, Android, FreeBSD, and Haiku.
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I think the poster child of going full OOP (that one can look at) is ACE/TAO [1], an implementation of CORBA. It had deep inheritance trees and abstractions piled on abstractions.
Similar to Mach and microkernels, folks ran ACE/TAO and thought CORBA was slow, when it was just the implementation that was not built for speed.
1. https://github.com/DOCGroup/ACE_TAO
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microservices-framework-benchmark
Raw benchmarks on throughput, latency and transfer of Hello World on popular microservices frameworks
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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++ Framework discussion
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The Mobile Development Tech Stack for 2025
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[FREE] Open-source Dialogue Plugin
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[FREE] Mountea Dialogue System
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Crow – Flask in C++
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Criação de um motor de jogo.
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A note from our sponsor - SaaSHub
www.saashub.com | 19 May 2025
Index
What are some of the best open-source Framework projects in C++? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | imgui | 65,408 |
| 2 | mediapipe | 29,728 |
| 3 | Catch | 19,381 |
| 4 | fprime | 10,305 |
| 5 | FrameworkBenchmarks | 7,851 |
| 6 | neutralinojs | 7,774 |
| 7 | JUCE | 7,184 |
| 8 | Crow | 3,872 |
| 9 | cef | 3,834 |
| 10 | userver | 2,606 |
| 11 | keystone | 2,403 |
| 12 | Sming | 1,527 |
| 13 | TreeFrog Framework | 1,337 |
| 14 | tracktion_engine | 1,275 |
| 15 | FINAL CUT | 1,072 |
| 16 | react-native-visionos | 1,059 |
| 17 | sofa | 1,008 |
| 18 | xtd | 876 |
| 19 | liblava | 828 |
| 20 | CCF | 815 |
| 21 | ACE_TAO | 731 |
| 22 | microservices-framework-benchmark | 708 |
| 23 | tyra | 590 |
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