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Top 12 C++ Go Projects
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FlatBuffers, also developed by Google, is a highly optimized serialization library designed for scenarios where zero-copy deserialization is required.
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JetBrains
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redpanda
Redpanda is a streaming data platform for developers. Kafka API compatible. 10x faster. No ZooKeeper. No JVM!
Project mention: Twitter's 600-Tweet Daily Limit Crisis: Soaring GCP Costs and the Open Source Fix Elon Musk Ignored | dev.to | 2025-04-10Redpanda: Redpanda is a straightforward, high-throughput, and cost-efficient messaging service. It is implemented in C++, compatible with Kafka, and claims to be 6 times more cost-effective than Kafka while achieving 10 times faster performance.
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reindexer
Embeddable, in-memory, document-oriented database with a high-level Query builder interface.
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ccapi
A header-only C++ library for interacting with crypto exchanges. Bindings for Python, Java, C#, Go, and Javascript are provided.
I work for a medium-sized proprietary/discretionary fund. AFAIK the principles trade all kinds of stuff, macro stuff. My current job is tuning up the execution on the cryptocurrency adjacent desk, but not like blockchain stuff, it's somewhere in between OG crypto trading stuff and like Wall St. HFT circa 2006-2010 depending on how you measure, it's in the "kernel bypass matters but FPGAs are still exotic" sort of regime, some of it is legacy REST APIs still but FIX 4.2 SBE and other real finance protocols (and real banks and stuff) are starting to be a part of the ecosystem.
I aspire to be a lot faster than this stuff (I've built faster stuff than this) but this is quite a good library (amazingly good by OSS standards, good stuff in this area is rarely OSS, props to the maintainers): https://github.com/crypto-chassis/ccapi, in particular this library does a really good job of being correct across a lot of surface area, it's serious people doing it, and there are forks of it that use DPDK floating around.
If by who's paying for it you mean the big Anthropic bill? My boss's boss is pretty enlightened about the fact that learning how to use AI well is expensive, so when I'm on a tight schedule I get a pretty forgiving budget for the model fees. It's a pretty serious perk in the sense that it's really expensive to master using these things :)
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yggdrasil-decision-forests
A library to train, evaluate, interpret, and productionize decision forest models such as Random Forest and Gradient Boosted Decision Trees.
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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Project mention: Ask HN: What Toolchains Are People Using for Desktop App Development in 2025? | news.ycombinator.com | 2025-08-09
Topping my list of GUI toolkit requirements are cross-platform and native look & feel. As far as I know, Qt still beats everything else in these areas on the desktop. It's mostly excellent.
However, I find The Qt Group's commercial licensing (and their tactics as reported by various people on HN) a little scary. If I were to go commercial, I think I would stick with LGPL Qt and link dynamically or give customers my object files for re-linking, because I get the impression that accepting a commercial Qt license that might restrict my ability to use open-source Qt elsewhere. I suppose there might be some other way to safely navigate those waters, but from what I've read, The Qt Group has a reputation for making this far from hassle-free. It's not an immediate problem because I currently use Qt only for open-source and personal tools.
I have grown tired of C++, so I've been using Python to drive Qt. The bindings are very good, mirroring the C++ API so closely that I just use the C++ docs when I need to look something up.
I've also been watching for Qt bindings to other compiled languages, mainly for distributing non-Linux GUI apps more simply than Python allows. Such bindings often turn out to expose only Qt Quick, which lacks functionality that I sometimes need, but there are a few that expose Qt Widgets. For example, these Go bindings:
https://github.com/mappu/miqt
I hope we'll eventually see a cross-platform GUI toolkit rivaling Qt in a language more pleasant than C++ (and ideally easier to bind to other languages). The one being developed for internal use by the Zed editor has some promising ideas about how to render native-looking text, which I think is a good start:
https://zed.dev/blog/videogame
https://www.gpui.rs/
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Data-Structures-and-Algorithms
Data Structures and Algorithms implemented In Python, C, C++, Java or any other languages. Aimed to help strengthen the concepts of DSA. Give a Star 🌟 if it helps you.
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bomberland
Bomberland: a multi-agent AI competition based on Bomberman. This repository contains both starter / hello world kits + the engine source code
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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++ Go discussion
C++ Go related posts
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Ask HN: What Toolchains Are People Using for Desktop App Development in 2025?
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Redis Pub/Sub vs Laravel Reverb: Real-Time Laravel at Its Best
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Makefiles are older than Doom why are we still using them?
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I Implemented Shazam's Algorithm in Golang [video]
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Llama.cpp supports Vulkan. why doesn't Ollama?
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Show HN: Clean and Simple Flutter News Client on Web
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6 Easy Ways to Run LLM Locally + Alpha
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A note from our sponsor - JetBrains
surveys.jetbrains.com | 1 Sep 2025
Index
What are some of the best open-source Go projects in C++? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | FlatBuffers | 24,677 |
| 2 | redpanda | 10,797 |
| 3 | LiteIDE | 7,707 |
| 4 | kubedoom | 2,104 |
| 5 | reindexer | 791 |
| 6 | ccapi | 664 |
| 7 | yggdrasil-decision-forests | 603 |
| 8 | miqt | 518 |
| 9 | Data-Structures-and-Algorithms | 272 |
| 10 | bomberland | 118 |
| 11 | qtedit4 | 37 |
| 12 | vulkan | 8 |
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