JS1k: The JavaScript code golfing competition
2015 - The JS1k hype train is real!
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Check out demos from previous editions too! 2010 , 2010 , 2011 , 2012 , 2013 , 2014 , 2016 , 2017 , 2018 , 2019
IMPOSSIBLE ROAD
IMPOSSIBLE ROAD is a pure, minimal arcade game about risk, reward, and rollercoasters.
Voyager
A space probe warp jumps from star system to star system, in a quest for a planet that could harbor life.
Minimal Miner
Use WASD to move, shift to mine. Mine the gold and avoid the monster bats.
Connect Four 3D
Click on the field to position your ball! Click BELOW the field to confirm your move and let the AI work. The winner will be hyped.
JSRepl
Make your own DEMO with a JavaScript REPL in 1K of JS (includes self-extracting LZW). Supports console log and error and Ctrl Enter makes a new line, and Enter executes. If you want to live mod anothe…
Physics Hype 3D
Physics Hype - 3D physics engine - click or reload to drop another spinning object - full screen for best effect.
Fracrastinator
Creates an awesome fractal wherever you click. Refresh to get a new fractal!
Do the Wave!
2d wave simulation. Click and drag to make waves, WASD to rotate, P to pause.
Train Ride
An isometric view of a peaceful train trip through a never-ending forest.
Islands
Procedural generation of islands (arrow keys/PgUp/PgDown to explore)
Mysterious Monorail
Ride the mysterious monorail through a misty metropolis (1:50 mins)
CAN'T STOP THE HYPE TRAIN
Click to switch which train is faster. Don't let them collide! Smaller window = bigger challenge.
c1ocK
SVG Analog Alarm Clock with Sound. Click or tap (works on mobile too) on the clock face to set or reset the alarm (red hand)
Find a color
Find (click) a rectangle that has the same color as the circle. The clock is ticking!
hypeRcube
The first 4D demo on JS1k! Move your mouse to start the demo and move the camera. Use the buttons to customize and animate.
Infinite Star Field
A random infinite star field! You can drag the map using the mouse! Should work on touch screens as well!
Particle Party
One million particles, raving to the beat ♪♫ Soundsystem & Fullscreen recommended!
Train Window
View of passing landscape from a train window. Winter is coming: wait for lakes, the night and more.
Build Track Quickly
Make a circuit by placing corners before the train runs out of track. Click to place tiles, press any key to rotate 90 degrees.
Defender
Inspired by the classic arcade shooter Defender. Use the arrow keys to fly and space to fire.
70's Screensaver
Couldn't come up with anything on topic but thought this was pretty neat and might inspire someone.
1k Rail Sim
Build strategically to earn $10k before time is up, click: water to terraform, land to place station. Clear 5 levels to win.
DragonTrack
This is a homage to last year's entry DragonDrop - a recursive depth limited variant of the Dragon curve
Invasion
A Space Invader clone. Invaders from outer space are coming to kill your mom! (http://codepen.io/misantronic/pen/yyLGVa, 502 bytes)
Train maze
Connect cities with tracks: click to build rails, click again to change direction.
Canvas Feedback 1K
For the patient: watch it unfold. For the impatient: click and drag.
Trains are canvases
Enter some text (lowercase letters and spaces only) and it'll be drawn in graffiti-style lettering.
miniMAL Lisp
A Clojure inspired Lisp-0 with automatic tail-call optimization (TCO), JavaScript interop, first class functions, lexical scope, let blocks, function closures, variadic functions, and JSON syntax.
Perlin mesh
A 500-ish bytes implementation of Perlin's noise primitive plotted with WebGL.
Wheels of the train
go round and round. And round. And round. Move mouse for psychedelic effects.
Rail network
Click somewhere to add new train stations. Earn more money by travelling passagers and build more stations.
The Hub
The Hub is a place where trains meet and cross each other, day and night, non-stop.
en1kma
Enigma machine simulator (Wehrmacht M3) with a choice of 3 out of 5 rotors (I, II, III , IV, V) a choice of 1 reflector from 2 (B, C wide) and configurable plugboard settings. Type alphabetical keys!
Trans Nevada Express
Just a train passing through a desert. Now with 100% more shooting stars.
雨RAIN
The raining code sequence that prints its own source code using only Asian characters.
Choo choo
Renders a working ascii train with a sinescroller on it, because every demo needs one.
Crystallization Hype
Examine the crystallization hype! Draw some new colorful crystals with your mouse! Click or hold down it to feel the magic! Hope you are having fun and enjoying the hype!
Polyphonic Piano
A polyphonic piano based on web audio API. Use your computer keyboard to play the piano. Also, plays a 4-part rendition of the popular canon Frere Jacques. Works in Chrome, Firefox, Opera, Vivaldi, bu…
Mini Apps Collection
7 apps in 1kb! Mini Code Editor, HTML & CSS minifier, hex viewer, dataURI converter, spritesheet and JSPerf!
ASCII Art Battle
A simple game where you fight against a dummy bot, get coins, upgrade your sword and armor, fight harder dummy bot, and so on.
Derailed
Press ANY key to derail the train. Avoid the RED squares and collect the GREEN squares. REFRESH page to restart game.
Strange Crystals III
Strange Crystals III, now theme-related: an appetizer for this year's contest
Mini Games Collection #1
A collection of three mini JS games: Mine Sweeper, Pop Tiles, and Game of Life!