70 AI simulators you can actually run.
Not videos about AI — working models you drive yourself. Train a classifier, tune a retrieval pipeline, break a neural net and watch what changes. Every simulator runs in the browser, and every one is included with a Learnijoy account.
Showing 70 of 70 simulators
- AI + Computer Vision
AI Can See Us
Drive a car around a tiny town and watch how AI puts a coloured box around every car, person, sign, and tree it spots. With day/night and a guided first ride!
Open simulator - AI + Audio
AI Can Hear Us
Build your own audio classifier in 4 steps — record claps and snaps, watch each sound become a dot on a graph, and see learning literally draw a line between them.
Open simulator - AI for Kids
AI Listens Lab 🎤
Talk to Robo and watch A.I. turn your voice into words! Tap the mic, say a color, animal, or number across 3 rounds — A.I. hears you and shows what it caught. Falls back to taps if voice is not available.
Open simulator - AI Ethics
Good AI vs Bad AI: Spot the Difference
Sort real-world scenarios into Good AI, Bad AI, or Depends. Take a Privacy Quiz, then write your own AI Use Promise — Gemini reviews it like a kind older sibling.
Open simulator - Coding Playground
Coin Collector
Use the arrow keys to walk your panda around and grab every coin. The PictoBlox blocks on the left light up as you play — see the exact code that handles movement, touching, and scoring. Win by collecting all coins!
Open simulator - Coding Playground
Draw a Square
Snap Repeat + Move + Turn blocks and watch your sprite draw shapes with a pencil. Repeat 4 + Move 100 + Turn 90 = square! Try triangle, hexagon, and star challenges, then change pen color and size.
Open simulator - Coding Playground
Make Sprites Talk
Pick two sprites, snap event blocks (When 🚩 clicked / When sprite clicked) plus Say, Play Sound, and Wait blocks — and watch them chat with real speech bubbles and voice. Teaches events, sound, and parallel scripts.
Open simulator - Coding Playground
Make Tobi Move
Pick a character, snap Move and Wait blocks, press Run — your character walks, pauses, jumps, and turns. Learn how movement + timing makes an animation, and watch each step record itself as a keyframe filmstrip.
Open simulator - Coding Playground
Tobi's Wandering Adventure
Build Tobi's brain block by block across 3 stages — a Forever loop, then random move + turn, then 'If touching edge then turn 15°'. Each stage shows why the next block is needed: loop + randomness + conditional makes a wandering character that never leaves the screen.
Open simulator - AI for Kids
Smart City Remote
Pick a smart thing — Smart Car, Smart Home, or Robot — then tap a remote command and watch the wireless signal fly across a tiny city. Combines the Smart World + Wireless Control concepts into one stage with a live Command → Signal → Action pipeline.
Open simulator - Coding Playground
Sprite Variable Lab
Read a scenario, pick the right data type (Number / Text / Boolean) for each variable, then type the value — and watch your PictoBlox sprite obey live. Wrong type? The sprite refuses to budge. Built around real PictoBlox block shapes.
Open simulator - CS + Game Logic
Are You Ready to Design a Game?
Pick a hero, a backdrop, and an enemy. Snap together blocks for movement, scoring, and Win/Lose conditions — then play your own arcade game with the arrow keys. Real Gemini suggests game ideas, debugs broken logic, and tunes Easy/Medium/Hard.
Open simulator - CS + Flowcharts
Flowchart Builder: Daily Problems
Pick a real-life problem, drag flowchart shapes onto a canvas, and connect them with arrows. Hit Test — a character walks through your logic. Then real Gemini asks playful 'what if' questions.
Open simulator - CS + Loops
Loop Lab: Robot Tasks
Program a cleaning robot to handle N classrooms — basic repeats, nested loops, and while-loops. Watch counters tick step-by-step, then catch sneaky loop bugs the AI cooks up.
Open simulator - CS + Algorithms
Sorting Algorithm Detective
Run bubble sort by hand, predict the next pass, and race Bubble vs Selection vs Quick vs Merge on the same data — then ask real Gemini which one you should actually use.
Open simulator - AI + Machine Learning
ML Bias Detective
Train your own image classifier — cats vs dogs, or pencils vs erasers vs rulers. Upload, label, audit. Then deliberately break it with biased data and watch the AI lie!
Open simulator - AI + Computer Vision
AI Text Scanner
Write your handwriting, upload a photo, or pick a sample — real Gemini Vision finds every line of text and turns it into digital characters with bounding boxes and confidence scores.
Open simulator - AI for Kids
Control the Beetle 🎮
Guide a beetle through 3 mazes to its home using ⬆ ⬇ ⬅ ➡ keys. Watch coding blocks light up, avoid walls, and beat your fastest time!
Open simulator - AI for Kids
Move Basket! 🍎
Use ⬅ ➡ keys to move the basket and catch falling fruits! Watch the code blocks light up with each keypress while Tobi cheers you on.
Open simulator - AI for Kids
Tobi's Chat Adventure
Build your first chatbot with Tobi the Panda! Watch him Ask → Think → Reply, then add your own questions and funny replies to make him smarter.
Open simulator - AI for Kids
Find AI with Robo! ✨
Tap the things that use AI! Robo guides you through 3 levels — Easy, Medium, and a 30-second Challenge — to discover how AI lives inside everyday toys, apps, and gadgets.
Open simulator - AI for Kids
AI in My World 🌍
Travel to five places — home, school, road, hospital, and games — and tap every A.I. hiding in your everyday world. Robo guides the tour with sparkles, stamps and a per-place explanation.
Open simulator - AI for Kids
Smart Home Helper 🏠
Send voice commands to Robo — A.I. listens and lights up the right device in your home. 5 challenges across rooms: turn on the lamp, play music, cool the room, check the door, set a reminder. Smart-home magic explained!
Open simulator - Coding Playground
AI Block Lab 🧩
Snap real code blocks together like a Scratch coder — then add A.I. blocks that let Robo react to what it sees. 3 progressive challenges: a Hello sequence, an A.I. trigger, and a loop. The kid's first taste of code + A.I.
Open simulator - AI for Kids
AI Shopping Helper 🛒
Drag items from the shelf into your cart — then decide if A.I.'s extra suggestions are SMART or SILLY. 4 shopping trips (grocery, school, pet, party) teach kids how recommendation engines work and why humans pick wisely.
Open simulator - AI for Kids
AI Can Suggest 💝
Swipe LOVE or SKIP on movies, foods, and activities — then watch Robo count your loves and suggest the perfect match, just like Netflix and YouTube do. A friendly, narrated intro to how recommendation engines learn what you like.
Open simulator - AI for Kids
AI Reading Buddy 📖
Pick a story and listen as Robo reads it aloud with each word lighting up in time — then answer fun questions to earn stars. A gentle intro to text-to-speech and how AI turns words into a friendly voice.
Open simulator - AI for Kids
AI Weather Wizard 🌤️
Read the clues — clouds, sun, raindrops — and guess tomorrow's weather like A.I. does. 3 famous U.S. cities (Miami, Seattle, New York), animated sensor board, glowing reveal sky, and friendly Sarah narration walk kids through how a real weather app thinks.
Open simulator - AI for Kids
AI Doorbell Detective 🔔
Ding-dong! A.I. doorbell cameras spot who's at the door — but YOU make the safe choice. 5 visitor scenarios across Mom, postman, stranger, friend, and a hidden face. Pick: Open / Ask adult / Don't open. AI + safety = smart kids.
Open simulator - AI for Kids
How AI Works? 🐱🐶
Feed cat and dog pictures into a friendly AI machine and watch the 3-step magic — INPUT → PROCESS → OUTPUT. Robo lights up each box, pulses the neural network, and reveals the answer with confetti.
Open simulator - AI for Kids
My A.I. Promise 🛡️
Pick 5 promise cards out of 10 — about how YOU will use A.I. honestly, safely, smartly and kindly. Robo's Gemini coach reads your picks and prints a real A.I. Explorer Certificate with your name + a personal cheer.
Open simulator - AI for Kids
Spot the Pattern! 🔍🧩
Drag colourful shapes onto a belt and watch a friendly brain spot your pattern. Tell it 'yes' or 'wrong' — teach it the right answer when it slips up, and grow it from Junior to Master Detective.
Open simulator - AI for Kids
Good Choice, Bad Choice? 🤔
Tell Robo what you did — by voice or by photo — and the AI judges if it was a Good or Bad decision, explaining why in one short sentence. Teaches that every choice has a result, and AI is a helper, not the boss.
Open simulator - AI for Kids
Face Unlock Fun! 📱
Pick a face, choose an expression, scan and UNLOCK! Robo guides you through 3 fun levels to learn how phones use AI to recognise faces.
Open simulator - AI for Kids
Can You Hear It? 🎧
Pick a sound, tap the mic, and hear it for real — clap, whistle, drum, music, tap, talking. Robo's headphones glow and he says exactly what he heard!
Open simulator - AI for Kids
Robo Learns to Sort! 🐾
You show → Robo learns → Robo groups! Pick example animals from a pool and watch Robo find the pattern and sort them. Mix wrong types and Robo asks for better examples!
Open simulator - AI for Kids
Create with Robo! 🎨🎵📖
You give the idea → Robo creates! Pick art, music, or a story across 3 levels and watch generative AI come to life with drawings, melodies, and storybook adventures.
Open simulator - AI for Kids
D'Snake Forest Finder! 🐍🔍🌲
D'Snake is hungry! Sweep a magnifying glass across the magical forest while Robo scans eyes, ears, body and size. Find the target animals across 3 timed missions and learn how AI sees the world.
Open simulator - AI for Kids
Sound Detective Academy! 🎧🕵️
Solve mystery sounds! Listen, drag the correct speaker card to the detective, and watch Robo's AI sound-analysis popup. 3 cinematic cases teach how AI listens and identifies the world.
Open simulator - AI for Kids
Does It Use AI? 🤔🛒
Run the AI Help Shop! Customers bring everyday objects — phones, vacuums, brooms, smart cars. Tap YES or NO, then watch Robo's scanner X-ray the object and reveal where AI lives. 3 timed rushes.
Open simulator - AI for Kids
Piggy's AI Cab Adventure! 🚖🐷
Drive the AI cab! AI cameras spot lights, people, and obstacles with bounding-box scans. Pick GO, SLOW, STOP or TURN to deliver every customer safely across 3 timed city rides.
Open simulator - AI for Kids
Tobi's Asteroid Mission
A 3-level space game with Tobi the Panda. Collect data, train an AI, scan a test image, then call the threat — earn points, unlock badges and save Earth.
Open simulator - AI for Kids
AI Asteroid Threat Detection
Train your AI on space images, watch it learn asteroid features, then upload a test image and see bounding boxes, distance, speed and threat level overlaid live.
Open simulator - AI + LLM Internals
Inside an LLM
Watch the full forward pass — tokenize, embed, attend, transform, softmax, sample. Tune temperature / top-K / top-P and see the distribution change in real time.
Open simulator - AI + Retrieval
RAG Lab
Build a real Retrieval-Augmented Generation pipeline. Tune chunk size, top-K, and reranking — then watch Gemini answer with vs. without retrieved context.
Open simulator - AI + Retrieval
Hybrid RAG Lab
Run BM25 keyword search and dense embeddings side-by-side, then fuse them. Slide α to mix sparse + dense, or switch to Reciprocal Rank Fusion — see when each lane wins.
Open simulator - AI + Retrieval
HyDE RAG Lab
Ask Gemini to imagine a hypothetical answer first, then search with THAT vector — not the question's. See why faking the answer often retrieves better than asking it.
Open simulator - AI + Retrieval
Vector DB Lab
Look under the hood of your other RAG labs. Watch brute force, IVF clustering, and HNSW graph search race the same query — then drag the scale dial to 1M vectors.
Open simulator - Coding Playground
Tobi's Coding Playground
Snap movement blocks together, press Run, and watch Tobi the Panda walk around the stage. A first taste of block-based coding for young learners.
Open simulator - Coding Playground
Beetle Maze
Use arrow keys to guide the beetle through a maze and reach home. Learn events, conditionals, and win triggers — and beat your best time!
Open simulator - AI for Kids
AI Face & Mood Lab
Upload a photo or pick a sample face — real Gemini AI finds the face, draws a bounding box, and reads the emotion with confidence scores.
Open simulator - AI Builder Lab
AI Prompt Testing Lab
Write a vague website prompt, test the simulated AI output, then improve it into an engineer-grade website brief.
Open simulator - AI + Web Dev
AI UI Builder
Practice prompt engineering by writing prompts that make an AI build real UI components — a navbar and a hero section — with live preview.
Open simulator - AI + Multi-Modal
Multi-Modal Misinformation Detector
13-step Colab workshop companion. Build a real multi-modal fake-news detector in Python — HuggingFace BERT + ResNet50 + fusion. Three code challenges graded by AI.
Open simulator - AI + Machine Learning
ML Spam Lab
Build a real spam filter the way ML actually works — label data, pick features, train a model, then watch it predict on brand-new emails.
Open simulator - AI + Deep Learning
Deep Learning Lab
From a single neuron to a real classifier you can draw into. Watch images flow through layers, train a network live, and test depth on hard patterns.
Open simulator - AI + Language
NLP Playground
Type sentences and watch an AI break them through the full NLP pipeline — tokenization, parts of speech, named entities, intent, and response.
Open simulator - AI + Agriculture
AI Crop Health Detection
Upload a leaf photo and simulate AI detection of spots, discoloration, and lesions. Learn how Teachable Machine + Roboflow classify crop diseases.
Open simulator - AI + IoT
AI Smart Store Security
Wire up CCTV cameras, motion sensors, and smart locks. Watch AI detect suspicious activity and lock doors in a retail store.
Open simulator - AI + IoT
AI Retail Theft Detector
Upload a CCTV image and watch the AI classify it as normal or theft — with confidence scores, bounding boxes, and reasoning.
Open simulator - AI + Audio
AI Voice Emotion Detector
Teach an AI to tell happy voices from sad voices. Record samples, train the model, and test it live with pitch, volume, and speed controls.
Open simulator - Sense-Process-Act
Smart Lighting System
Drag a person through a sensor's detection zone and watch Sense → Think → Act trigger the light. Run a 60-second demo to discover the 40% energy savings.
Open simulator - Sense → Process → Act
Robot as a System
Build an obstacle-detection robot by wiring sensor, controller, and motors. Adjust distance and watch the robot react in real-time.
Open simulator - Parameter Playground
Ohm's Law Explorer
Explore the relationship between voltage, current, and resistance. Watch a live circuit respond as you adjust parameters.
Open simulator - Wiring Sim
Wire a Robot
Connect sensors, controller, and actuators to bring a robot to life. See how each component depends on the others.
Open simulator - Sense-Process-Act
Robot Decision Maker
Adjust environmental inputs and watch a robot sense, process, and act in real-time.
Open simulator - Characteristic Tuner
Robot Trait Tuner
Adjust a robot's programmability, accuracy, speed, and repeatability. See how traits affect task performance.
Open simulator - Population Sim
Ecosystem Balance
Simulate predator-prey dynamics using the Lotka-Volterra model. Watch populations rise and fall over time.
Open simulator - Ratio Factory
Human + Robot Factory
Find the optimal balance between human workers and robots. Different tasks demand different ratios.
Open simulator - AI for Kids
AI Comic Maker 📖
Pick a hero, a setting, and a problem — Robo's A.I. writes you a 4-panel comic with title, captions and speech bubbles! Make 3 comics across the session. The kid's first taste of generative A.I.
Open simulator
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