lesleh · web experiments

Play
ground

A scratchpad of web experiments. Click anything that looks interesting.

Games

08
NO.01

Echo

A Simon memory game. Watch the pattern of colours and tones, then tap it back. It grows every round.

NO.02

Whack-a-Mole

Bonk the moles before they duck away. They speed up as the round runs down. Beat your high score.

NO.03

Fowl Play

Get the chicken across the road, dodge the bikes and beat the clock. Each level gets faster.

50
?
NO.04

Number Guesser

Classic number guessing game with hints. How few guesses does it take?

✊
NO.05

Rock Paper Scissors

Play the timeless game against the computer. Best of three!

NO.06

Lights Out

Toggle lights to clear the grid. Or let the auto-solver handle it.

71423384958
£6.7M
one in 45,057,474
NO.07

Lottery Simulator

Play the UK Lotto at £2 a ticket. Run a million draws and watch the house always win.

?
?
?
?
?
?
NO.08

Recall

A memory matching game. Flip cards, find the pairs, beat your best across three difficulties.

AI

05
NOVA · Group 4score
SugarEmulsifierFlavouring
NO.09

Food Analyzer

AI-powered food analysis. Upload a photo and get instant nutritional insights.

NO.10

Connect 4

Play Connect 4 against an AlphaZero-style AI trained via self-play.

NO.11

Neuroevolution

A population of cars grow neural-net brains via a genetic algorithm, learning to drive a track live. No training data, just survival of the fittest.

NO.12

Evolving Walkers

A population of rigid-body robots evolve neural-net controllers live in the browser, learning to track a reference stride until they walk - and then run.

NO.13

Tetris AI

Watch a neural network play Tetris. Trained with deep reinforcement learning.

Simulations

03
NO.14

Planets

Watch planets orbit in smooth animations using the Motion library.

NO.15

Boids

3000 agents follow three simple rules and emergent murmurations appear.

NO.16

Three Body Problem

Three gravitating stars. Stable dances or chaos, depending where you start.

Generative & Graphics

03
NO.17

Spirograph

Draw mesmerizing spirograph patterns by rolling circles within circles.

NO.18

Gradients

Experiment with colour gradients and transitions.

NO.19

Graphs

Interactive graph visualizations using D3.js.

Interface & Motion

06
Homer Simpson
NO.20

Homer Simpson

Homer's eyes follow your cursor around the screen.

per 100g+ Add
Beans£0.80£0.53
Rice£1.20£0.24
Pasta£0.95£0.48
NO.21

Unit Price

Compare products by unit price. Never overpay at the grocery store again.

NO.22

Subgrid Cards

Explore CSS subgrid with responsive card layouts.

NO.23

Animate

React Markdown animation experiments with smooth transitions.

NO.24

Motion

Motion library playground. Spring physics and animation primitives.

server
client
server
client
NO.25

Trees

A tree of nested server and client components. See how the App Router composes the two.

made with curiosity