Skip to content


Switch branches/tags

Name already in use

A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch?

Latest commit


Git stats


Failed to load latest commit information.
Latest commit message
Commit time
April 25, 2018 11:31
June 16, 2023 20:20
April 25, 2018 15:00


Open-Source Quantum Software Projects

Twitter Follow

Curated list of open-source developed quantum software projects.

Please read the contribution guidelines before contributing.

Also please check out the Unitary Fund's 4k$ grant project for quantum OSS!

Clone this repository into your qBraid account:


For a curated list of learning resources please check out desireevl's repo.

Quantum full-stack libraries



  • blueqat - Quantum computing SDK.
  • Braket - Amazon's fully managed quantum computing service for building quantum algorithms.
  • Cirq - Framework for creating, editing, and invoking Noisy Intermediate Scale Quantum (NISQ) circuits.
  • [CUDA Quantum] ( C++ support for the CUDA Quantum programming model for heterogeneous quantum-classical workflows.
  • Forest - Rigetti's software library for writing, simulating, compiling and executing quantum programs.
  • Ket - Embedded programming language that introduces the ease of Python to quantum programming.
  • Ocean - D-Wave System's suite of tools for solving hard problems with quantum computers.
  • OpenQL - Compiler framework with algorithm libraries, optimizer, scheduler, QEC, mapping, micro-code generator.
  • PennyLane - Cross-platform Python library for differentiable programming of quantum computers.
  • Perceval - Quandela's software library for programming realistic photonic quantum computers.
  • ProjectQ - Hardware-agnostic framework with compiler and simulator with emulation capabilities.
  • PyQudit Python package for generalized and universal versions of quantum gates in N-dimensions.
  • quantumcat - Cross-platform open-source high-level quantum computing library focused on building applications.
  • Qibo - An open-source framework for quantum simulation, self-hosted quantum hardware control and calibration.
  • Qiskit - Framework for noisy quantum computers at the level of pulses, circuits, and algorithms (supported by IBM).
  • quantum-os Operating system based on Linux kernel for quantum computing.
  • Strawberry Fields - Xanadu's software library for photonic quantum computing.
  • TensorCircuit - Tensor network based quantum software framework for the NISQ era.
  • Tequila - Extensible Quantum Information and Learning Architecture developed by Alan Aspuru-Guzik's group (UofT).


  • Q# - Microsoft's quantum programming language with Visual Studio integration.


  • Silq - Silq is a high-level quantum programming language with safe uncomputation and intuitive semantics.

Quantum simulators


  • QuaC - Parallel time-dependent open quantum systems solver.
  • QuEST - Quantum Exact Simulation Toolkit is a high performance multicore simulator of universal quantum circuits.
  • TNQVM - Tensor Network QPU Simulator for Eclipse XACC.

Common Lisp

  • QVM - Rigetti's high-performance quantum virtual machine.



  • Huawei HiQsimulator - Single-amplitude, Full-amplitude and Error-correction circuit simulation engine.
  • Intel Quantum Simulator - Distributed qubit register quantum simulator using OpenMP and MPI.
  • JKQ-DDSIM - Error-free quantum simulator using decision diagrams as underlying data structure. (arXiv / IEEE)
  • PennyLane Lightning - Fast state-vector simulator written in C++. GPU support. Python interface via PennyLane.
  • qFlex - Flexible high-performance simulator for verifying and benchmarking quantum circuits implemented on real hardware.
  • Qiskit Aer - High performance simulator for quantum circuits that includes noise models (supported by IBM).
  • QCEAD - C++ program to both simulate a quantum computer and use parallel evolutionary techniques to design algorithms.
  • QPlayer - Light-weight, scalable and fast quantum Schrödinger simulator (paper)
  • Qrack - Comprehensive qubit and gate implementation for developing universal virtual quantum processors.
  • qSim - High level, elementary simulation library.
  • QSim - Schrödinger and Schrödinger-Feynman simulators for quantum circuits.
  • Quantum++ - High-performance general purpose quantum simulator (can simulate d-dimensional qudits).
  • tweedledum - Library for synthesis, compilation, and optimization of quantum circuits.



  • Q - Quantum Computation Simulator written purely in GoLang.


  • Strange - Java API that can be used to create Quantum Programs.


  • jsquil - JavaScript interface for writing Quil programs.
  • Quantum Circuit Simulator - Smoothly runs 20+ qubit simulations in browser or on node.js server.
  • Quirk - Drag-and-drop quantum circuit simulator in your browser.
  • Quantum JavaScript (Q.js) - Drag-and-drop circuit editor, simulator, documented API, text-as-circuit DSL, concept primers.
  • Quantum-computing-playground - Browser-based simple IDE interface to run, visualize and debug quantum programs.
  • Quantum tensors - JavaScript / TypeScript package for sparse tensor operations on complex numbers for quantum computing.


  • BosonSampling.jl - Efficient simulation of multiphoton interference.
  • Cliffords.jl - Efficient calculation of Clifford circuits in Julia.
  • IonSim.jl - Simulate the dynamics of a configuration of trapped ions interacting with laser light.
  • QSimulator.jl - Unitary and Lindbladian evolution in Julia.
  • QuantumInfo.jl - Julia library for quantum information related calculations.
  • QuantumOptics.jl - Numerical framework to simulate various kinds of open quantum systems in Julia.
  • RandomQuantum.jl - Package for generating random quantum states and processes.
  • Yao.jl - Extensible, Efficient Quantum Algorithm Design for Humans.


  • Interlin-q - Quantum network simulator imitating distributed quantum systems with interconnect communication between nodes.
  • MentPy - Python package for creating and simulating Measurement-based Quantum Computating (MBQC) programs.
  • MISTIQS - Generating/compiling/executing quantum circuits for simulating quantum many-body dynamics of systems.
  • PIQS - Efficient simulation of open quantum dynamics of identical qubits.
  • QCircuits - User-friendly quantum circuit simulator designed for students and newcomers to quantum computing.
  • QCompute - Baidu's software development kit for designing quantum circuits and simulating on a high-performance simulator.
  • Qibo - Framework for quantum simulation with hardware acceleration using just-in-time compilation.
  • QTop - Simulation and visualization of topological quantum computers.
  • quantum-computing - Functionally complete simulator for universal quantum computing in Python
  • quimb - Easy but fast python library for quantum information and many-body calculations, including with tensor networks.
  • Quintuple - Simulating the 5-qubit processor of the IBM Quantum Experience.
  • QuPy - Quantum circuit simulator for both CPU and GPU.
  • QuSpin - Exact diagonalization and dynamics of arbitrary boson, fermion and spin many-body systems.
  • QuTiP - User-friendly and efficient numerical simulations of a wide variety of open quantum systems.
  • SeQuencing - Construct and simulate realistic quantum control sequences using QuTiP.
  • SimulaQron - Application level simulator of a quantum network.
  • Stim -Fast stabilizer circuit simulator.
  • SQUANCH - Distributed simulation framework for quantum networks and channels.
  • QuNetSim - Quantum network simulation framework.
  • The Walrus- Xanadu's library for simulating Gaussian Boson Sampling.


  • QCGPU - High-performance GPU-accelerated quantum computer simulation outlined in this arXiv paper.
  • RustQIP - Rust Quantum Computing library leveraging graph building to build efficient quantum circuit simulations.


Quantum Analog Hamiltonian

  • Bloqade - Package for the quantum computation and quantum simulation based on the neutral-atom architecture.
  • Pulser - Python library for pulse-level/analog control of neutral atom devices.

Quantum annealing


  • C-to-D-Wave - Compile a very small subset of C to a D-Wave Hamiltonian function


  • edif2qmasm - Compile Verilog, VHDL, and other hardware-description languages to a D-Wave Hamiltonian function
  • QA Prolog - Compile a subset of Prolog to a D-Wave Hamiltonian function


  • chimera_embedding - Algorithms to generate native-structured embeddings for Chimera graphs.
  • dimod - Shared API for Ising and QUBO problems.
  • dwavebinarycsp - Map constraint satisfaction problems with binary variables to binary quadratic models.
  • dwave-cloud-client - Min. implementation of the REST interface to communicate with D-Wave's Solver API.
  • dwave_neal - Implementation of a simulated annealing sampler.
  • dwave_networkx - Exploration and analysis of network graphs.
  • dwave-system - API for easily incorporating D-Wave quantum annealers as samplers in the Ocean software stack.
  • embedding_utilities - Mapping samples between original and embedded graph.
  • micro_client_sapi_dimod - Dimod wrapper for the D-Wave Micro Client.
  • minorminer - Heuristic tool for minor graph embedding.
  • penaltymodel - Utilities and interfaces for using penalty models.
  • QMASM - Quantum macro assembler for D-Wave systems
  • qubo-nn - Classifying, auto-encoding and reverse-engineering QUBO matrices. Also includes 20 problem formulations.

Python, C & Matlab

  • Qbsolv - QUBO solver with D-Wave or classical tabu solver backend.

Quantum algorithms


  • XACC VQE - Variational quantum eigensolver built on XACC for distributed, and shared memory systems.


  • myQShor - Quantum implementation of Shor's algorithm.




  • Quantum Katas - Programming exercises for learning Q# and quantum computing.

Quantum compilers


  • QCOR - C++ language extension and associated compiler implementation for hybrid quantum-classical programming.
  • ScaffCC - Compilation, analysis and optimization framework for the Scaffold quantum programming language.
  • tweedledum - C++17 library for analysis, compilation/synthesis, and optimization of quantum circuits.


  • UniversalQCompiler - Synthesis of isometries (including unitaries and state preparation), channels and POVMs.


  • QuantumCircuitOpt.jl - Julia package for provably optimal decompositions and compilations of quantum circuits


  • Arline Benchmarks - Automated benchmarking platform for quantum compilers, quantum hardware and quantum algorithms.
  • BQSKit - Berkeley Quantum Synthesis Toolkit is an optimizing quantum compiler and related tool-set.
  • Mitiq - Cross-platform, error-mitigating quantum compiler from Unitary Fund.
  • NchooseK - Constraint-programming system that compiles to both circuit-model quantum computers and quantum annealers.
  • PyZX - Python library for quantum circuit rewriting and optimisation using the ZX-calculus.
  • QEDA - Quantum electronic design automation software for optical circuits using QASM.
  • QGL2 Compiler - Language compiler for imperative Quantum Gate Language (QGL).
  • Qiskit Terra - Python library for quantum circuit rewriting and optimization (supported by IBM).
  • Qubiter - Quantum compiler with Python wrapper for LAPACK's CS Decomposition to build a binary tree of matrices.
  • SAT Circuits Engine - Qiskit-based high-level quantum circuits synthesis engine for n-SAT problems.

Common Lisp

  • quilc - Rigetti's optimizing Quil compiler.

Quantum converters


  • qconvert-js Quantastica's quantum programming language converter in Javascript.


  • qconvert Quantastica's quantum programming language converter in Python.

Quantum assembly

  • Blackbird - Open-source quantum instruction language currently used for Xanadu's photonic hardware.
  • OpenQASM - Open-source quantum assembly language.
  • QMASM - Quantum macro assembler for D-Wave's quantum annealers.
  • Quil - Open hybrid quantum/classical instruction set currently used by Rigetti. Parser

Quantum control


  • C3 - Open-loop, closed-loop and automated Control, Calibration and Characterization of quantum devices.
  • Krotov - Python implementation of Krotov's method for quantum optimal control.
  • Qibo - Qibo provides a platform agnostic quantum hardware control module with drivers for multiple instruments.
  • Quanlse - Quanlse provides quantum control solutions via a cloud SDK, developed by Baidu Quantum.

Quantum interoperability

  • scikit-quant - This is a package to improve interopability between different quantum computer software packages.

Quantum error correction


  • PyMatching - Python package for decoding quantum error correcting codes with minimum-weight perfect matching.
  • qecsim - Python package for simulating quantum error correction using stabilizer codes.
  • qiskit-ignis - Tools for quantum hardware verification, noise characterization, and error correction.
  • Qsurface - Python package for simulation and visualization of quantum error-correction on surface codes.

Quantum and post-quantum cryptography


  • liboqs - C library for quantum-resistant cryptographic algorithms.
  • openssh - OpenSSH with quantum-safe key exchange algorithms.
  • openssl - OpenSSL with quantum-safe cryptographic algorithms.
  • PQClean - Clean, portable, tested implementations of post-quantum cryptography.


Experimental quantum computing


  • Qlab.jl - Generic lab tools in Julia.


  • Qlab - Measurement and control software for superconducting qubits.


  • ARTIQ - Next-generation control system for quantum information experiments.
  • OLSQ - OpenQASM package to perform optimal layout synthesis for quantum computing.
  • pyEPR - Automated Python module for the design and quantization of Josephson quantum circuits.
  • PyRPL - Turn your RedPitaya into a powerful DSP device, suitable as a digital lockbox and measurement device in quantum optics.
  • QCoDeS - Python-based data acquisition framework for quantum experiments.
  • QFlow-lite - Machine Learning tools for autotuning quantum dot experiments.
  • QGL - Domain-specific language embedded in Python for specifying pulse sequences.
  • Qiskit Metal - Quantum hardware design and analysis.
  • QTT - Quantum Technology Toolbox is a framework for the tuning and calibration of quantum dots and spin qubits.
  • Quantify - Data acquisition platform focused on Quantum Computing and solid-state physics experiments.
  • qupulse - Quantum computing pulse parametrization and sequencing framework (formerly qc-toolkit).
  • scqubits - Simulating superconducting qubits, obtaining energy spectra, plotting energy levels and more.
  • QEDA - Quantum Electronics Design Automation - The RTL of Quantum Computing!
  • 8Q - 8 Qbit, Photonic Quantum Computer

Quantum fun

Board games

  • Entanglion - The world’s first open source quantum computing board game. For 2 players.



Python & JavaScript



  • feyn - Puzzle game for the browser in which you need to find the combination of gates that the qubits need to pass.

Quantum tools


  • Quantum - Free Mathematica add-on for Dirac Bra-Ket Notation, Quantum Algebra, Quantum Computing and the QHD approximation to the Heisenberg Equations of Motion.
  • QI - Toolkit for common quantum information functions.


  • Arline Quantum - Arline Quantum is an open-source library providing basic functionality for creating and manipulating quantum circuits. It also contains a list of mock quantum hardware.
  • Covalent - Tool for running high performance/quantum workflows on advanced computing hardwares.
  • Gridsynth-Python-wrapper - Wrapper for using Gridsynth in Python/
  • IBM Q bot - Bot for Slack and Telegram to monitor the load of IBM Q quantum computers.
  • orqviz - Library to easily visualize the loss landscape of variational quantum algorithms.
  • pulsemaker - Python widget library for designing pulses and pulse schedules for quantum computing hardware.
  • pyQuirk - Python widget for Quirk to be used in Jupyter notebooks, JupyterLab, and the IPython kernel.
  • qBraid - Transpiles quantum circuits to and from Cirq, Qiskit, Amazon Braket, Pennylane, Pyquil and allows for execution on any backend.
  • qonduit - Python library with visualization tools and workflows for quantum computing that utilize the best of what’s available.
  • qprof - gprof-Compatible profiler for quantum programs.
  • QRAND - Multiplatform and multiprotocol quantum random number generator for arbitrary probability distributions.
  • QuantumGraphs - Grow and study random graphs by a continuous, randomly collapsing quantum walk.
  • toqito - Framework to study problems pertaining to entanglement theory, nonlocal games, and other aspects of quantum information.


  • SpookyIDE - IDE designed for quantum computing.


Quantum data

  • QDataSet - Quantum datasets for the training and development of QML algorithms.

Abandoned projects

2+ years of inactivity. Feel free to reanimate, document and contribute to some of this work!

  • BLACK-STONE - Specification and implementation of quantum common lisp, for gate-model quantum computers.
  • libquantum - C library for quantum computing and quantum simulation.
  • libQuantumJava - Crude translation from the C implementation of libquantum to a Java version.
  • jquil - Java library for quantum programming using Quil.
  • pQCS - Parallel quantum circuit synthesis with optimal T-count.
  • PyQLab - Library for instrument control and superconducting QIP experiments.
  • PySimulator - Python with C++ backend simulator for superconducting circuits.
  • QACG - Quantum Arithmetic Circuit Generator in Haskell.
  • QCL - High level, hardware-agnostic programming language for quantum computers (syntax like C or Pascal).
  • QCViewer - Visual quantum circuit design and simulation tool.
  • QGL.jl - Performance orientated QGL compiler.
  • Qlmp - Interpreter for the functional quantum programming language Qumin.
  • Qiskit-JS - Quantum information software kit for JavaScript (supported by IBM).
  • QOCS - Quantum OCaml Circuit Simulator is a functional approach to simulating quantum gates.
  • QuantumUtils - Tools for quantum control, simulation, channel representation conversion, and perturbations.
  • Quantum Virtual Machine - Reference implementation of Rigetti's Quantum Virtual Machine.
  • Quince - Node-based GUI that allows for graphical configuration of qubit experiments in Auspex.
  • Quipper - Scalable functional programming language for quantum computing based on Quantum Lambda Calculus.
  • QuSim - Ideal noise-free multi-qubit simulator written in 150 lines of code.
  • QSEL - Quantum programming language putting entanglement and superposition front and center.
  • sapi_dimod - Dimod wrapper for D-Wave's Solver API (SAPI).
  • Squankum - Visual Java quantum simulator.


See the contribution guidelines.



To the extent possible under law, the Quantum Open Source Foundation has waived all copyright and related or neighboring rights to this work.