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22 hands-on labs in 5 categories – no installs, everything runs in your browser. Try the free demos; everything is included with lessons, or with Pro: USD 10 a month (USD 100 a year).

Python from zero, the web, databases and computer science.

Blocks, games and robots – the fun way into coding.

Data science, machine learning, computer vision and ChatGPT.

Electronics, electricity and physics you can play with.

Publish your projects and remix your classmates'.

🐍 Programming See all →

🧩 Kids & creative See all →

Block coding

Block studio Scratch-style coding for kids: snap blocks together and see the same program in Python. 🔒 With Pro →

Make games

Python World Like Roblox, but in Python: build a 3D world of parts, coins, lava, lifts and obbies, script what happens when you touch things – then play it. ▶ Try a free demo →

Game maker Make your own game in Python: sprites, keys, collisions, score and levels – played right in the browser. ▶ Try a free demo →

Robots

Robot Lab 3D Build a robot from parts, program it with SPIKE-style blocks and watch it drive in 3D. 🔒 With Pro →

🤖 Data & AI See all →

Data science

Data Lab NumPy, pandas, Matplotlib and Seaborn: 24 lessons with instant checks, a table explorer and a chart builder. 🔒 With Pro →

Machine learning

ML Lab Machine learning by drag and drop: data, neurons and layers – watch a model learn, step by step. 🔒 With Pro →

How ChatGPT works Tokens, next-word prediction, temperature and word maps – build a tiny language model and see how chatbots think. ▶ Try a free demo →

Computer vision

Vision AI lab See inside transformers, YOLO (v1 to YOLO26), ReID and tracking: attention you can hover, NMS step by step, a live tracker – then code each piece in Python. ▶ Try a free demo →

Image lab Blur, sharpen, edges and colour masks: see the filter grids behind computer vision, with the OpenCV code. ▶ Try a free demo →

AI Lab: camera & sound Teach an AI with your webcam, microphone or dance moves – like Teachable Machine – then make it talk or play a game. 🔒 With Pro →

🔬 Science & engineering See all →

Electronics

Circuit lab & electronics Build circuits with LEDs, motors, relays and real sensors – distance, motion, temperature, a water tank with a float switch – and program a Pico in MicroPython. 🔒 With Pro →

Electricity lab How electricity really works: current, Ohm's law, series and parallel, power bills, magnets, generators and safety. ▶ Try a free demo →

Physics

Physics sandbox Throw, swing, bounce and orbit: change the numbers, watch the physics and the Python behind it. ▶ Try a free demo →

🌍 Share & show See all →

Gallery

Gallery Publish your projects, remix classmates' work and collect likes. 🔒 With Pro →

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USD 10 a month (USD 100 a year) – or included with one-to-one lessons.

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