Alternatives

Products that do what Eigen does

Hybrid quantum-classical programming language

1QA
QBE – a new compiler back end▲241
2016 · c9x.me
2TS
The Silicon C++14 Web Framework▲140
2015 · github.com
3QJ
Quantum JavaScript▲210
2020 · quantumjavascript.app
4MM
Micro-mitten – Research language with compile-time memory management▲236
I've been working on implementing the compile-time approach to memory management described in this thesis (https://www.cl.cam.ac.uk/techreports/UCAM-CL-TR-908.pdf) for some time now - some of the performance results look promising! (Although some less so...) I think it would be great to see this taken further and built into a more complete functional language.
2020 · github.com
5JA
Joy – a Go to JavaScript compiler▲201
2017 · mat.tm
6SA
Silk, a simple systems programming language▲79
Hi HN! Silk is a project I began working on approximately six months ago without any prior experience or knowledge of compiler design, and it's been a frustrating but fun learning experience. It is very much a work in progress, but I would love to hear feedback of any kind!
2020 · ajaymt.github.io
7MA
Muon, a low-level programming language inspired by C, C# and Go▲175
2019 · github.com
8AM
A Modern C/C++ build tools (Simple, Fast, Cross-platform)▲89
2019 · xmake.io
9
Forge CLI▲107
Swarm agents optimize CUDA/Triton for any HF/PyTorch model
Jan 2026
10NA
NasNas, a new intuitive and user friendly C++ game framework▲95
2020 · github.com
11HA
Hadron. A tool that makes design with code visual and easy▲51
2018 · medium.com
12SA
Shade, a language based on C, Go, and Haskell▲15
2012 · github.com
13AM
A modern documentation tool for C++ and a replacement for Doxygen▲31
2021 · hdoc.io
14SA
SuperString – A fast and memory-optimized string library for C++▲52
2018 · github.com
15SB
Sabre – Bullshit-free (c) programming language▲37
2021 · github.com
16MA
MeTA: A Modern C++ Data Sciences Toolkit▲39
2014 · meta-toolkit.github.io
17OS
Open-Source Quantum Solver for Maximum Independent Set Problems▲6
We’ve just released an open-source library for solving the Maximum Independent Set (MIS) problem with neutral atom quantum computing, running on both quantum processing units (QPUs) and classical hardware, thanks to emulators. This project is the result of collaboration between Pasqal, academic researchers, and industry partners, aiming to make it practical to experiment with quantum approaches to hard combinatorial optimization tasks. The MIS problem appears in real-world scenarios like scheduling, resource allocation, and network optimization, areas where classical solvers often struggle…
2025
18SP
Scalable pan/zoom with easy authoring, arbitrary datatypes▲22
https://github.com/tracyhenry/Kyrix Open source MIT project from Turing award winner Michael Stonebraker. Seeking contributors.
2020
198C
8cc.cr – compile-time C compiler implemented as Crystal macros▲9
2016 · github.com
20LA
Light and Powerful Web-Framework for C++▲7
2020 · oatpp.io
21E0
Expreduce 0.2, a free Mathematica-compatible CAS written in Go▲14
2017 · github.com
22AA
ajl, a simple compile to C++ language▲12
2017 · github.com
23CQ
C++ Quantum Simulator written from scratch▲7
Nov 2025 · github.com
24LA
LibRapid -- A high performance multi-dimensional array library▲8
tl;dr I'm developing an incredibly fast library for arrays and mathematics, and I've implemented a few new features and made some improvements. I'd love for you to check it out! Links: GitHub: https://github.com/LibRapid/librapid/ Documentation: https://librapid.readthedocs.io/en/latest/ Discord: https://discord.com/invite/cGxTFTgCAC Hey everyone! I am the lead developer of LibRapid (https://github.com/LibRapid/librapid/), a high-performance C++ library for array manipulation and mathematics. I've…
2023

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