Top 6 Java C++ Projects

Aeron

20 7,046 9.8 Java

Efficient reliable UDP unicast, UDP multicast, and IPC message transport

Project mention: LMAX Disruptor – High Performance Inter-Thread Messaging Library | news.ycombinator.com | 2023-11-17

Semi-related is the Aeron project: https://github.com/real-logic/aeron

QR-Code-generator

20 4,812 4.7 Java

High-quality QR Code generator library in Java, TypeScript/JavaScript, Python, Rust, C++, C.

Project mention: How to make a QR code with Stable Diffusion | news.ycombinator.com | 2023-06-11

The funny thing is that no-one AFAICT has realized that the same content can be encoded in different-looking QR codes. Beside the obvious (different error-correction levels), the content itself can be changed while maintaining its semantic meaning (e.g. "https://example.com/foo", "HTTPS://EXAMPLE.COM/foo", or "HtTpS://eXaMpLe.CoM/foo" are all semantically identical) and even the QR encoding itself can be tweaked (e.g. by changing the version and mask, see the demo on https://www.nayuki.io/page/qr-code-generator-library). Each combination would yield a different-looking QR code that would encode the same meaning, and it could therefore allow the diffusion models even greater freedom.
I'm sure somebody will get to this soon.

WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
JavaCPP

8 4,369 7.1 Java

The missing bridge between Java and native C++

Project mention: Any library you would like to recommend to others as it helps you a lot? For me, mapstruct is one of them. Hopefully I would hear some other nice libraries I never try. | /r/java | 2023-05-27

JavaCPP and presets for working with JNI

SBE

7 3,021 8.5 Java

Simple Binary Encoding (SBE) - High Performance Message Codec
ConcurrencyFreaks

1 401 3.1 Java
Nayuki-web-published-code

5 135 5.7 Java

Complete collection of code files (*.java/js/py/cpp/etc.) published on Project Nayuki website.

Project mention: Ask HN: Could you show your personal blog here? | news.ycombinator.com | 2023-07-04

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). The latest post mention was on 2023-11-17.