Free open textbooks, lecture notes, video lecture series, interactive tutorials and notebooks, SDK learning paths and glossaries on quantum science and technology, each read on the page of its provider, with the licence as that page states it.
Free learning resources read on each provider's own page on the date shown. Not confirmed by the providers and not an endorsement or ranking: each summary is in the portal's own words, a licence is shown only as the page states it, and "Free" means the page itself says the resource is free, open access or openly licensed. Check access conditions on each page. Pending editorial review. Compiled 2026-10-30.
38 resources
Quantum Country
Provider
Quantum Country
Type
Open textbook
Topics
Quantum foundations, Algorithms and applications, Communication and QKD
Level
Introductory
Language
English
Free
Free
Licence
Not stated
Access
Optional sign-in to save spaced-repetition review progress
Summary
Online essay series introducing quantum computing and quantum mechanics, including quantum search and teleportation, with built-in spaced-repetition review questions; assumes basic linear algebra.
Quantum Information Processing with Finite Resources -- Mathematical Foundations
Provider
arXiv
Type
Open textbook
Topics
Quantum foundations, Communication and QKD
Level
Advanced
Language
English
Free
Free
Licence
arXiv non-exclusive distribution licence 1.0
Access
Open-access archive (arXiv)
Summary
Book-length monograph of 135 pages on the mathematical foundations of quantum information with finite resources, including smooth entropies; also published as a SpringerBriefs volume.
University of Waterloo, Institute for Quantum Computing
Type
Open textbook
Topics
Quantum foundations
Level
Advanced
Language
English
Free
Not stated (openly readable)
Licence
Not stated
Access
Free manuscript PDF for personal use only; differs from the printed Cambridge University Press edition
Summary
Mathematically rigorous book on the theory of quantum information, offered as a downloadable manuscript for personal use alongside the 2018 printed edition.
Open calculus-based university physics textbook whose Chapter 7 covers wave functions, the uncertainty principle, the Schrödinger equation and quantum tunnelling.
University of Waterloo (notes of a 2006 University of Calgary course)
Type
Lecture notes
Topics
Quantum foundations, Algorithms and applications, Communication and QKD
Level
Introductory
Language
English
Free
Free
Licence
Not stated
Access
Author describes the notes as no longer maintained (last updated April 2006)
Summary
Notes from 22 lectures of an introductory undergraduate quantum computing course, covering teleportation, early algorithms, factoring, Grover search, error correction and key distribution.
Quantum foundations, Algorithms and applications, Quantum computing hardware
Level
Advanced
Language
English
Free
Free
Licence
arXiv non-exclusive distribution licence 1.0
Access
Open-access archive (arXiv)
Summary
Regularly revised lecture notes on quantum computing from QuSoft in Amsterdam, with version 6 of August 2026 adding a chapter on stabilizer states and Clifford circuits.
Algorithms and applications, Quantum computing hardware, Sensing and metrology
Level
Advanced
Language
English
Free
Not stated (openly readable)
Licence
Not stated
Access
Use and distribution governed by the CERN copyright notice
Summary
Recorded online lectures by researchers on quantum simulation, quantum machine learning kernels, quantum sensing for physics and related topics, hosted on the CERN Document Server.
TU Delft states this OCW platform will be replaced at the end of 2026 and URLs may change
Summary
Master-level course materials from QuTech and Caltech with lectures, readings and supplementary videos on quantum key distribution and device-independent cryptography.
The Quantum Internet and Quantum Computers: How Will They Change the World?
Provider
TU Delft OpenCourseWare (QuTech)
Type
Video lecture series
Topics
Quantum computing hardware, Communication and QKD, Business, strategy and policy
Level
Introductory
Language
English
Free
Free
Licence
CC BY-NC-SA 4.0
Access
TU Delft states this OCW platform will be replaced at the end of 2026 and URLs may change
Summary
Six-module set of QuTech video lectures and readings on quantum computing and the quantum internet, aimed at a broad audience including policy-makers and business executives.
Understanding Quantum Information and Computation (video series)
Provider
IBM Quantum (Qiskit)
Type
Video lecture series
Topics
Quantum foundations, Algorithms and applications, Quantum computing hardware
Level
Advanced
Language
English
Free
Free
Licence
Not stated
Access
Videos on YouTube; written companion lessons on IBM Quantum Learning
Summary
Video lecture series on quantum information, quantum algorithms, the general formulation of quantum information and quantum error correction at graduate depth.
Algorithms and applications, Programming and SDKs, Quantum computing hardware
Level
Introductory, Advanced
Language
English
Free
Free
Licence
Apache 2.0
Access
Notebooks are free; running on managed simulators or QPUs requires an AWS account and incurs charges
Summary
Example notebooks for Amazon Braket, from getting-started circuits on local simulators to noise modelling, hybrid jobs, pulse control and analog Hamiltonian simulation.
Jupyter notebooks from the QBronze introductory workshop series with hands-on tasks on the basics of quantum computing and programming with Qiskit; requires only basic programming.
Algorithms and applications, Programming and SDKs, Quantum computing hardware
Level
Advanced
Language
English
Free
Free
Licence
Apache 2.0
Summary
Documentation examples and worked applications for the CUDA-Q hybrid quantum-classical toolkit, covering kernels, multi-GPU workflows, noisy simulation and chemistry and error-mitigation use cases.
Algorithms and applications, Programming and SDKs, Quantum computing hardware
Level
Advanced
Language
English
Free
Free
Licence
CC BY 4.0 (content); Apache 2.0 (code samples)
Summary
Notebook-style Cirq tutorials on textbook algorithms, Shor, VQE and quantum walks, plus ReCirq experiment walkthroughs including QAOA, Fermi-Hubbard and surface-code memory.
Programming and SDKs, Quantum computing hardware, Engineering and enabling technologies
Level
Advanced
Language
English
Free
Free
Licence
Apache 2.0
Summary
Notebook course in four parts on designing superconducting quantum chips with Quantum Metal, from placing components to GDS export, meshing and electromagnetic simulation.
Algorithms and applications, Programming and SDKs, Quantum computing hardware
Level
Not stated
Language
English
Free
Free
Licence
Apache 2.0
Summary
Collection of code-based demonstrations using PennyLane on quantum algorithms, hardware, error correction, quantum machine learning and resource estimation.
Programming and SDKs, Quantum computing hardware, Engineering and enabling technologies
Level
Introductory, Advanced
Language
English
Free
Free
Licence
MIT
Summary
Getting-started to expert tutorials for the Perceval linear-optics framework, with examples on boson sampling, standard and variational algorithms and quantum walks on photonic circuits.
Tutorials for the open-source Pulser package on programming neutral-atom pulse sequences, emulator and QPU execution, noise models and optimisation applications.
Algorithms and applications, Programming and SDKs, Quantum computing hardware
Level
Not stated
Language
English
Free
Free
Licence
GPL-3.0
Summary
Notebooks and slides for teaching with the Qibo framework, covering query algorithms, Bell tests, noise and mitigation, VQE and control and calibration of superconducting devices.
Quantum foundations, Algorithms and applications, Programming and SDKs
Level
Introductory
Language
English
Free
Free
Licence
MIT
Access
Earlier repository microsoft/QuantumKatas archived in August 2024; katas now live in the microsoft/qdk repository
Summary
Self-paced tutorials with theory and Q# programming exercises on qubits, gates, measurement, entanglement and basic algorithms, maintained in the open-source Quantum Development Kit repository.
Documentation section with basic and advanced Qibo examples on circuits, noisy simulation, error mitigation, tomography and applications such as Grover search, VQE and Shor factorisation.
Modules readable online; submitting jobs to Azure Quantum hardware requires an Azure subscription
Summary
Six-module learning path on qubits, superposition, entanglement and teleportation with Q#, using the Quantum Development Kit and resource estimator; assumes basic linear algebra.
Quantum foundations, Algorithms and applications, Programming and SDKs, Quantum computing hardware, Business, strategy and policy
Level
Introductory, Advanced
Language
English
Free
Free
Licence
CC BY-SA 4.0 (content); Apache 2.0 (code)
Access
Courses readable online; badge exams are handled separately via IBM Training and Credly
Summary
Qiskit learning hub with more than ten courses, learning paths and classroom modules ranging from basics of quantum information to error correction, chemistry, machine learning and business foundations.
Quantum foundations, Programming and SDKs, Quantum computing hardware
Level
Introductory, Advanced
Language
English
Free
Not stated (openly readable)
Licence
Not stated
Access
Knowledge base readable online; free registration needed to run jobs on the platform
Summary
Documentation and learning section of the Quantum Inspire platform covering quantum computing basics, the cQASM language, the SDK and compilation, code examples and hardware backends.
Programming and SDKs, Post-quantum cryptography and security
Level
Professional
Language
English
Free
Free
Licence
CC0 1.0
Access
Community-submitted entries; licences of listed projects vary
Summary
Community-curated list of open-source quantum software grouped by category, including full-stack libraries, simulators, compilers, error correction, post-quantum cryptography and hardware control.
Catalogue of more than 1,100 classical and quantum error-correcting codes organised into domains and kingdoms, with a glossary and bibliographic references.
Quantum foundations, Algorithms and applications, Programming and SDKs
Level
Introductory, Advanced
Language
English
Free
Free
Licence
CC0 1.0
Access
Curated directory; cost of individual linked items is not verified by the page
Summary
Curated directory of quantum computing learning resources, including SDK tutorials, lecture notes, interactive tools, programming exercises, videos and community forums.
Quantum foundations, Quantum computing hardware, Business, strategy and policy
Level
Introductory, Advanced
Language
English
Free
Not stated (openly readable)
Licence
Not stated
Access
Directory of external resources; some listed items are paid or offer only free samples
Summary
Filterable directory of about 45 quantum-technology learning resources, mostly online courses, webinars and games, with language, format, level and prerequisite filters.
Catalogue of quantum algorithms grouped by type, listing the speedup and references for each entry; the About section records an update on 10 September 2026.
Quantum foundations, Programming and SDKs, Quantum computing hardware
Level
Introductory
Language
English
Free
Not stated (openly readable)
Licence
Not stated
Access
Vendor glossary; some entries describe the vendor's own products
Summary
Alphabetical glossary of roughly 90 quantum computing terms, from anyons to ZX-calculus, including entries on error correction and trapped-ion technology.
Quantum foundations, Algorithms and applications, Quantum computing hardware
Level
Introductory
Language
English
Free
Not stated (openly readable)
Licence
Not stated
Summary
Short glossary of about 25 quantum computing terms, such as ansätze, encoding methods, gates, entanglement and quantum error correction, within IQM Academy.