QubitLab is an open-source web IDE that makes real quantum computing approachable: draw a circuit, see the math, debug it gate by gate, compile it for a real machine, simulate it with realistic noise, cut it when it is too large, and run it on IBM Quantum hardware, in English and Khmer.
Two ideas, animated: circuit cutting, a technique taught in the docs and lessons (QubitLab's simulators run up to 4 qubits and do not cut circuits for you), and the composer that stays in sync with code.
Start in seconds with your own guest account, no sign-up needed: lessons, quizzes, XP, the IDE and simulators all work. A free account adds 100 run credits (cached results cost nothing), passkeys and GitHub. No fee, no waiting list, no credit card. Real hardware uses your own free IBM or IQM account.
A full IDE, a Playground for Python and OpenQASM, seven learning tracks with quizzes, bilingual docs, a debugger, benchmarks and chip heat maps, all in one place.
QubitLab is built solo by an AI engineer and quantum researcher in Cambodia, so that students there could study quantum computing in Khmer and English without expensive tools. We hope it serves study and research here and anywhere else.
OpenQASM 3 is the single source of truth for circuits; Playground Python runs in an isolated sandbox with no network, no files and no secrets. Provider tokens are encrypted at rest and never returned to the browser.
Every bug, error and idea sent from Help & feedback goes into one inbox and shapes the roadmap. Open source under the MIT license.
One person: a solo AI engineer and quantum researcher from Cambodia, who wanted a tool that explains every step in Khmer as well as English. Design, code, lessons and research are all done solo. The name will be here when the time is right. For now the work speaks: every feature on this page is open source and was built to be understood, not just used.
I built QubitLab on my own: with my own time, my own money and everything I have learned so far. I made it so that anyone, especially students in Cambodia, can learn quantum computing without paying and in their own language. I hope you enjoy learning with it, and that it helps you take your first real steps into quantum computing.
Composer, OpenQASM 3 and Python input, compile comparison, simulators and 68 noisy fake backends, Debug mode, bilingual docs.
Seven learning tracks with quizzes and ranks, the Python Playground, IBM and IQM hardware, run credits, the Community page, and safer accounts (passkeys, two-step sign-in, Google and GitHub).
Push and import Playground code with GitHub, and partners in Cambodia for servers and learner credits.
Classrooms: share a circuit by link, teacher view of student runs, Khmer-first onboarding for universities in Cambodia; credits you can buy, with prices shown up front.
Real-hardware study groups with shared IBM access, error-mitigation lessons, and a public launch for quantum study and research in Cambodia.
Quantum compilation, simulation and hardware access
API, job queues, live status, caching
IDE, 3D state views, charts, code editor
Everything that changed since 8 July 2024: changelog.
Start in the IDE or learn in the learning path.