This page uses your coordinates, your sky, your weather, and 1,200+ tools to create something nobody else will ever see. Scroll to explore.
You've explored the show-off page for 10 minutes. Ready to try the real tools? Each one does way more than this demo.
Browse All 1,200+ Tools Back to HomepageTools start from just 1p per use
Loading route...
Calculating...
Calculating lunar phase...
Click any bright star for its name and mythology
Fetching conditions...
5 colors generated from your coordinates, time, and weather. Tap to copy hex.
Try the full Color Palette Generator →A love letter, a roast, and a haiku. All about your city.
Click the keys or use keyboard (A-K for white, W-U for black). Yes, this is a real synthesizer.
Try the Music Theory Explainer →Tap the pads or press 1-8. Web Audio synthesis, no samples needed.
Loading solar data...
Fetching wind data...
Generated from your exact coordinates. Nobody else sees this pattern.
Mesmerising mathematical curves. Click "New Pattern" for a fresh one.
Click anywhere to place a gravity well. Watch particles dance.
Procedurally generated from your city name
Click to draw cells, then hit Play. Emergent complexity from simple rules.
The butterfly effect, visualised. Two paths that start almost identically diverge into chaos.
Wait for green, then click as fast as you can.
Type the text below as fast as you can. Your WPM updates live.
0 WPM
Draw anything. Change color. Download your art.
Type anything and hear it spoken aloud. Try different languages.
Arrow keys or swipe to move. How long can you survive?
A procedural landscape seeded from your lat/lng. Isometric pixel art.
Loading facts...
Based on your location and local time
A unique pattern encoding your city, timestamp, and moon phase. Screenshot it.
Real examples generated by yanni.uk tools. Every output is unique.
An audio frequency pattern seeded from your coordinates. Tap to hear it.
The ISS orbits at 28,000 km/h. Here's where it is right now.
Your latitude and longitude, encoded as the universe's simplest language.
Seeded from population density and time of day.
Real outputs created by users with our AI tools. Stories, art, comics and more.
yanni.uk has 1,200+ tools. AI writers, calculators, visual generators, games, converters, and more. From 1p per use.
Click a tool to load it below. Timer applies to everything on this page.