Open-source quantum-computing software

20 open-source libraries, tools and applications tagged quantum-computing, ranked by how closely quantum-computing is their primary purpose, then by adoption and maintenance health. Each entry links to a page with sources, use cases and when to choose or avoid it.

20 products, primary matches first, then adoption-weighted; health v2 shown.

Product	Health v2	Stars	Maturity
Qiskit Qiskit is an open-source SDK for programming quantum computers at the level of quantum circuits, operators, and primitives (Sampler and Est…	100	7908	stable
QuipNetwork/xq-py A Python implementation of the Quip Network's quantum virtual machine, allowing users to simulate quantum programs locally. It serves as a …	50	5510	active
quantumlib/Cirq Cirq is a Python framework from Google Quantum AI for writing, manipulating, optimizing, and simulating quantum circuits, with a focus on N…	86	5086	stable
PennyLaneAI/pennylane PennyLane is a cross-platform Python library for quantum computing, quantum machine learning, and quantum chemistry. It lets users build an…	88	3476	stable
akfamily/akquant AKQuant is a high-performance quantitative research and backtesting framework with a Rust core engine and Python interface for strategy dev…	76	2392	active
apache/mahout Apache Mahout is an Apache Software Foundation project providing Qumat, a high-level Python library for quantum computing with a unified AP…	84	2310	active
tensorflow/quantum TensorFlow Quantum is a Python framework for hybrid quantum-classical machine learning that integrates Cirq quantum circuits with TensorFlo…	80	2186	active
quantumlib/OpenFermion OpenFermion is an open-source Python library for compiling and analyzing quantum algorithms that simulate fermionic systems, including quan…	86	1741	active
mit-han-lab/torchquantum TorchQuantum is a PyTorch-based framework for quantum computing simulation, supporting statevector and pulse-level simulation on GPUs with …	60	1669	active
rigetti/pyquil PyQuil is a Python library for building quantum programs in the Quil instruction language developed by Rigetti Computing. It generates, com…	93	1498	active
OriginQ/QPanda-2 QPanda 2 is an open-source quantum computing framework by Origin Quantum for building, running, and optimizing quantum algorithms, with a C…	23	1209	active
NVIDIA/cuda-quantum NVIDIA's CUDA-Q platform providing C++ and Python tools for programming heterogeneous quantum-classical workflows across QPUs, GPUs, and CP…	93	1164	active
Strilanc/Quirk Quirk is a drag-and-drop quantum circuit simulator that runs entirely in the browser, letting users build small quantum circuits and see st…	23	1099	stable
qiskit-community/qiskit-machine-learning Qiskit Machine Learning is an open-source Python library built on the Qiskit SDK that provides building blocks for quantum machine learning…	84	1098	active
QuantumBFS/Yao.jl Yao is an extensible, efficient open-source framework for quantum algorithm design and quantum circuit simulation written in Julia. It prov…	76	1043	active
QNLab-USTC/SimQN SimQN is a discrete-event network-layer simulator for quantum networks, written in Python with optional Cython acceleration. It supports la…	77	1040	active
Microsoft Quantum Development Kit The Microsoft Quantum Development Kit provides tooling for the Q# quantum programming language, including a compiler, language service, sta…	94	1024	active
QuipNetwork/quip-miner A Python mining stack for the Quip Network Substrate chain that coordinates CPU (simulated annealing), GPU (CUDA/Metal/Modal), and QPU (D-W…	61	11592	experimental
QuipNetwork/xquad XQuad is a hardware-agnostic toolchain for expressing and running quadratic optimization problems (QUBO/Ising/discrete) across quantum anne…	60	5582	experimental
AidLux (AidLearning) AidLux (originally AidLearning) is an AIoT development platform that runs a native Ubuntu Linux environment with GUI, deep learning tooling…	63	5812	active