By Noah Weninger
An experimental music synthesizer with real time FFT. To play a custom song, add a hash (#) character to the url and put the algorithm afterwards. All songs you play are saved to l... more
By Josep del Rio
This graphical demo will show plasma with a kaleidoscope effect, which sometimes produces flower shapes; click on the image to randomize the plasma generation.
By Anders Thøgersen
You are a moth flying through the night eating the tasty nectar from the flowers and avoiding bumping into things.
Use Mouse to navigate and spacebar to eat nectar from a flower
Strange crystals II
By Philippe Deschaseaux
The crystals have disappeared in the space/time fracture, but shiny Furbee has survived and is now accompanying the visitors.
This is a humble tribute to @romancortes and @p01.
By Carlo Cannas
The red ball is pushed away from black nodes, add new nodes by dragging from an existent node, to delete a node shift-click it and add a fixed node with ctrl-click.
By André Röhrig
An Intro inspired by an famous Agent
By Matt Krutar
What's it do?
The blobs eat the globs.
Then they split once they are full.
A Garden in Spring
By Steve Taylor
A changing view of a garden and its inhabitants. Wait a few seconds for the inhabitants to show up...
By Vincent Guerin
Drawing grass with tendrils algo...
By Tom Boshoven
Compressed manually and then crushed.
By Tim Smith
New life bursts forth, heralding spring's arrival!
Inspired by the fantastic Assembly 2004 Invite by Moppi:
Over The Hills
By Joshua Koo
I imagine Spring to be a beautiful season that you don't mind spending your time in the hills, enjoying the beautiful blue skies and clouds.
Here's my first js1k entry & gam... more
By Oleksii Okhrymenko
It's slightly modified version of popular game "Sea Battle". Just click on enemy territory. F5 to restart game.
One Color Always Wins
By Kenny Gow
Random vote algorithm benchmark.
Reload for new set of random colors.
Click to slow, click again to resume full speed.
Double click to switch to high-res "paint-like&... more
By Manel Villar
When Spring starts, flowers of all colours appear in the field
By Raimon Ràfols
A Catalan flag waving + a star doing the nyan.cat ;)
By Aurélio A. Heckert
Put your red+cyan glasses and play pong as you should do inside 1k TRON world.
Your mouse is your racket.
CAUTION! Game addiction will ruin your life, steal your tv and kill your goldfish.
First rays of spring
By Vincent Schüßler
A simple live raytracer with reflections and shadows and stuff. Runs relatively smooth in Chrome, but is pretty slow in Firefox and Opera.
Compressed by the Google Closure Compile... more
very strange attractors
By chris mckenzie
A system of 3 equations - doing quite a bit.
Playing in a Puddle
By Erik Skau
A puddle rippling and playing music as raindrops fall.
You can also play in the puddle by clicking and dragging through it.
The notes work sort of like a theremin; volume varie... more
By Adis Hamzić
The Spring unwinds and Summer comes forth, rejoice! But better get a cup of coffee first, this might take a while...
This is a Julia set renderer with a point and bitmap orbit tra... more
Spring (on paper)
By Adam Wentz
By Christopher Eaton
Small circles explode from your mouse position and can be flung out by holding then releasing your mouse button. The more circles on the screen, the larger they get. All circles bounce off the edges.
By Will Ridgers
Renders fractal flames similar to electric sheep. Users can make their own and share them.
You Are Here
By Oakley Jurgens
Displays the browser's location on a spinning globe.
Written quickly, then beaten with a stick for days until it was small enough. Then discovered that JSCrunch gives me 100 more bytes...
By Timothy Volp
A dark, cold, underground chamber deep below the surface of the earth.
Use the arrow keys to walk forward/turn but try to avoid walls, they are not solid.
Credit to aivopass for JSCrush!
Type, press enter and let Mother Nature do the job
By Yann 'Aaunel' Eves-Hollis
Generates a random chain of blooming daisies!
By Tom Hargreaves
Plays a tune
3013 The 䕵 space-time fracture
By Mathieu 'p01' Henri
The miners were right! Damn Furbee came close to the strange crystals and opened a space-time fracture 1K springs into the future, trapping a 䕵 Mech inside a time bubble.
* * *
Picross/Nonogram/Hanjie Puzzle in 1K of JS.
Allows you to create, share, and play puzzles that can be stored in a URL parameter.
For example, try pasting this onto the end of the... more
By Yang Bin Kwok
It doesn't need to warm up! Written while waiting for mine to warm up...
Refresh for new blobs! Will attempt to fit browser height on load.
By Eric V. Garcia
It's Spring, so let's play a simple game of mini-golf. Click on the play area to move the golf ball in that direction. Get the ball in the hole and the flag will display how many ... more
Julia Fractal Browser
By Doug Haber
A Julia Fractal Browser with Stripe Average Coloring.
* Use the mouse wheel to zoom in and out.
* Press the "Next" button to cycle through available frac... more
By Alex Patton
A logic simulator inspired by Minecraft's "redstone" mechanics. Click on the grid to place a component. Press any key to switch component type. 3 components are included:... more
By Benjamin Bill Planche
Pointillist representation of an animated landscape: watch Spring comes and passes, and moving shadows casted by clouds.
- Move the mouse to fly around.
- Drag ... more
1024 byte sequencer
By Per-Olov Jernberg
Expression based webaudio sequencer and sampler
By Oscar Toledo G.
Pilot your ship through space and remove meteors from field. Rotate with left and right arrows, advance with up arrow, shoot with spacebar.
Caveat with aliens lurking.
If you... more
Nigh and day
By Damien Fayol
A short attempt at making a spring-ish scenery.
By Joshua Wright
springy rainbow grid
By Will Scott
The undergrowth will eventually reclaim your intrusions.
By Eric Basti
A very simple example of basic attraction, and some canvas fun. Nothing too extreme. Works with a mouse and on (most?) touch devices.
By Jon Carroll
Any key makes a new random maze, UP also zooms in DOWN zooms out (more compexity) - max zoom at 2x2 pixel tile size, will also resize itself to fit the screen. Inspired by Neil Fr... more
By Grant Kot
Attract nearby blobs by moving the mouse. Simulates several hundred blobs, collisions between them, and collisions with a sinusoidal terrain.
A game with one keyboard for 100+ players ! Each has a key and the only who press earns points.
Start by pressing 's'. The big dot is you, the small dots are zombies. You run using arrow keys and you try to stay alive. "Run" in swedish is "spring", so the ... more
By Arthur Gunn
It's interactive! Move the mouse to draw new shapes, click to change modes. Can visualise music if your browser supports it! Enable "Web Audio Input" at chrome://flags/
Circles bouncing around and colliding. Click and drag to attract them to your mouse. Learn how it was coded at http://www.youtube.com/watch?v=yF0T7lviBnY
Game of Life
By Daniel Bali
Simple Conway's Game of Life implementation
- Click anywhere to add a cell
- Press any button to stop/start the simulation
By Derek Ries
Control the blue arrow and pick up as many blue coins as you can. But be careful to avoid the red guys! Use the W,A,and D keys to steer.
Your are the spring Sun, the yellow square on the bottom.
The blue square is your enemy, the winter with his troops. Destroy as much as you can!
Shoot them with the space key... more
Super Mini Hexagon
Fully playable Super Hexagon clone (http://superhexagon.com/)
How to play:
1: Put some trance/house/goa music at top volume
2: Use your arrows to move the small triangle and a... more
By James Allardice
Springy is a simple Doodle Jump clone. Move your mouse to the left or right to control your spring and see how high you can jump! Now featuring mobile accelerometer support!
Move the mouse around to add balls to the screen, clicking on the mouse changes to spread out mode, you can add balls to the screen in this mode too. Click the mouse to switch between modes.
By Bradley Meck
A simple shoot em up game.
Arrow keys to move
Space to shoot
Grab upgrades before they disappear
A live anime-like picture: have you ever tried to catch a firefly?
By Carlos Reventlov
It's just a peaceful anime-like live picture. I wanted to make something beautiful, with nice graphics that would work on powerful and low-end computers with Chrome, Firefox or Ope... more
Furbee, get out of that tunnel ASAP!
By Roman Cortes
This is a tribute to amazing Strange Crystals by @ehouais (http://js1k.com/2013-spring/demo/1459). As my original Furbee entry (http://js1k.com/2013-spring/demo/1451) and ehouais' ... more
Winter Wrap Up
Before spring can start winter has to be cleaned up. It's your job to move the remaining snow piles to spots of grass that have died during winter.
Inspired by the MLP:FiM episode... more
By Philippe Deschaseaux
"The miners have stopped working. They are afraid. It all seems to come from those strange crystals that some have seen."
Be patient and with a bit of luck, you'll see... more
By Alexis Jacomy
SprinGoo is a 2d playground inspired by World of Goo, where you can build structures made of balls connected by spring-like connections.
* [p]: Increases mouse action... more
April showers bring May flowers
By Abigail Cabunoc
Use your typing skills to turn April showers into May flowers! Create as many flowers as you can. The more you create, the faster the rainfall. Don't let the rain reach the ground ... more
By Juhani Imberg
Oldskool plasma effect in all of its glory.
3D City Tour
By Jani Ylikangas
1st person view of a springtime island city. Use your mouse to fly over the city, jump from roof to roof or drive with the cars on the streets. You can also just let the autopilot ... more
ConWAY of war
By | / ◕‿‿◕ |ᕁ/
A simple three-colored game of Life. Three differently-shaded lifeforms strive to survive on looped field. Click to restart. Right click to switch to RGB color scheme and back.
By Roman Cortes
Spring bee with springy antennae and my trademark tie from my logo/website.
In this entry I'm pushing the limits of what is possible with 2d canvas and high-end hardware. To ful... more
Helicopter simulation, tribute to the game Comanche : Maximum Overkill.
Use arrows to control pitch and roll. Altitude is on autopilot so no matter how hard you try, you cannot ... more
It says it with flowers
Don't worry, bee happy!
By Manuel Rülke
After a long hard winter our little busy bee wakes up and happily flies off to check out the awesome tasty flowers. And it thinks ... "I love the smell of utf-8 flowers in the... more
By Benjamin Bill Planche
"They said I could be anything..." - 3D Mesh
- Change the camera orientation with the mouse.
- Click to generate an impulse, briefly affecting the mes... more
By Ashley Bryant
Take a tour over a randomly generated 3D map.
Includes shading by height and distance and cropped to a circular radius. Had to trim a lot of code so there will be the odd artif... more
A colorful, blooming, polar (as in graph) flower.
A Penrose by any other name
By Daniel Lauzon
With 5 dimensions this yields a Penrose Tiling;
a 5-fold symmetric non-periodic tiling of the plane.
Rich geometric subject, and beautiful tiling.
squeezing it into 1k - price... more
Matrix style Conway's Game of Life
Runs a Conway's Game of Life simulation in matrix style, containing a "Gosper glider gun". Hovering over canvas revives cells
By Andres V
High-speed rainbow worm hole, move your mouse to change perspective, scroll to change speed, click to pause/unpause
By Piotr Stosur
Animated fractal shapes(mainly rotating spirals) similar to CEVs after taking psychedelic/dissociative drugs. :P Based on copying previous frame into 4 smaller fragments(once per f... more
By Asad Memon
Move your mouse around to create fluid particles on left side of the screen.
Spring Water, tasteless, odorless, colorless but valuable and versatile.
A full impl... more
By Alex Turpin
Remake of Tron's light cycles game. Left and right arrow key to control blue player. Don't hit the walls or another player.
The Little Engine
By Emory Hufbauer
The Little Engine that Could (fit into 1k). That's right, a little physics engine in 1024 bytes. It will work in any browser, but is fastest in Chrome. Click to fire a beam of obje... more
By Mohsen Azimi
t draw 2d mathematical function. It has pan and zoom functionality. Functions can be complex and include sin, cos, tan, cot and power.
By Frederic Poeydomenge
Parallax scrolling of multiple repeating background layers composited on a single canvas : Starfield, Fractal mountains, and IFS trees.
Spring is in the box.
By Anders Corlin
Boxes and scrolling text. Second effect showing after 10s.
Source is minimized but not compressed. No evals and shit.
One more kilobyte
Flat shaded metaballs using marching tetrahedrons. Use Chrome for best results.
tiny solar system
By Marco Pro Campos
tiny solar system
It all starts with a star and a planet. You can create more planets by clicking with the mouse and wait to see how it behaves.
By Philip Wagner
An exciting dungeon crawler. Features:
* Awesome Graphics!
* Maze generation à la Prim
* Evil Enemies
* Collectable Treasures
Move with arrow keys. If a... more
By Damian Cipolat
This script lets you animate a stick figue by json, movements that can be achieved are similar to those of a human, as sequential movements avoiding robot.
I recommend that you ... more
It's a simple sequencer with relatively clean and readable code though I had to sacrifice all whitespace except for the indentation. The point is to show that you don't have to gar... more
By Elias Schütt
My third and final submission. :)
Memorize the path and track it blind!
The level generator is not the best, but the best I could do in 1024 bytes.
Compressed with jscrush. <3
Animated 3D SIRD Plasma
By Philipp Stucki
Animated 3D plasma rendered using a single image random dot stereogram (SIRD). Read http://en.wikipedia.org/wiki/Autostereogram#Viewing_techniques on how to view a SIRD.
By Pim Linders
Find your way through the winding tunnel -- but don't hit the wall!
Use the left/right arrow keys or A/D keys to move the race car left and right
Simple Piano Recorder
Press keys(ZSXDCVG.. and Q2W3ER5...) to play the piano.
Press shift key and press keys to make sounds one octave higher.
Press spacebar to "snapshot" what you played. Y... more
By David Uselmann
Creates 99 stars that orbit a black hole using Newtonian physics. Up and Down key change time while left and right key control zoom.
Careful, to fast increase iterative error.
just another randomly generated pythagoras tree
By Imran Latif
Press falling letters to score points and to test your typing speed ;-).
Pac-Man in the park
By Krisztián Tóth
Who does not know the original Pac-Man game?
Now, Pac-Man breaking out of the dark gloomy maze, and came out for a walk in the park in spring.
- Pac-Man game. Spring... more
bit hard xonix, fitted into 1k
is a spilder, can put web that fill bounding area if nobody inner
* fly - act as bouncing ball, kill you if touch your web du... more
Drop The Ball
By Steven Scott
Drop the ball game. Use the left & right cursor keys to keep up with the ledges.
Compressed with JS-Crush.
By Tamas Kalman
A classic demo scene plasma effect using floating point operations.
The Game Of Go
An implementation of the game of go (also known as baduk or weiqi). Has full rules including ko.
Lonely Planet Lander
By Alex Cruikshank
The goal is to land softly on the little planet. Arrow keys to rotate, space to thrust. You begin in orbit. You must determine your orbit and decelerate out of it in order to begin... more
By Robert Elek
Oldschool demo experiment, the classic rotating checkerboard with a few twists. Quite CPU hungry, i7 and Chrome recommended.
Spring has come and tree structures are sprouting. Try your hand as a gardener by trimming them down!
Pachelbel canon in D
Plays the Pachelbel canon in D while displaying a springy/rainbowy animation.
Sounds are generated using code from:
By Elias Schütt
Outputs the code itself in a fancy way.
By Dennis Koliris
A concise Stereogram Generator based on user input. If you don't know how to see the hidden 3D picture in Stereograms please follow this link: http://en.wikipedia.org/wiki/Autostereogram
By Elias Schütt
First JS1K entry!
Not too happy with the result in FF and Opera, but at least it works.
Matrix is a system
By Pedro Franceschi
By Pawel Waleczek
This does some serious eye-popping, brain-twisting, knee-bending stuff. Move the CURSOR or CLICK on it to get some.
//updated and compresses with http://www.iteral.com/jscrush/
By Blaise Kal
A shooter for the visually impaired that takes place in your browser's address bar. Use arrows keys to play.
By Pablo Caro
Welcome to Color Factors!
In this world, each point represents a number, starting from 2, to the infinite. Each one of these number is connected with its factors by an arc. The ... more
All the solutions of 8 queen puzzle
By Asen Bozhilov
Finds all the solutions of 8 queen puzzle. It placing eight chess queens on an 8×8 chessboard so that no two queens attack each other. All the solutions are 92, it prints them.
Impressionist Flowering Trees
By Alejandro Mosquera
JSuper Mario 1k
By Vincent Thibault
Help Mario to rescue the (nonexistent) Princess Toadstool by running around this infinite world. Use arrows to run and jump, avoid falling into holes !
Sprite by @jseidelin.
Flower of Life
By Tristan Brehaut
Randomly generated spiraling energetic patterns depicting the flower of life in 5 dimensions, or something :) Refresh window for a new flower.
By Max Bondar
Simple analog clock
By Adam Dougherty
Color by pixel with colors, size and eraser.
By Francesco Trillini
A spinner, with linear color cycle.
By Kevin Roast
An colourful animation of a windmill in a field of spring flowers.
By Joachim Revol-Tissot
Displays a procedurally generated tree that grows and moves in the wind.
The 1k Notebook
By Claudio Cañete
Skeuomorphic notebook page, including a 27 glyphs vector-based font, with handwriting animation algorithm. The complete font data is compressed in 259 bytes, with all the glyphs fr... more
By Jérémy Tuloup
Every year, spring is the time for renewal. It brings life back and buds grow again as the sun rise in the sky.
If you want new trees, just refresh the page.
By Ioannis Cherouvim
displays "hello" and "#js1k" with some funky moving letters
By David Mignot
If spring would last forever...
By Ashley Bryant
Infinitely scrolls through a generated terrain. Click to generate a new one!
By Ashley Bryant
Generates a random full coloured texture each time the page is refreshed.
By David Higgins
Misuse of the HTML5 <progress> element.
Flower gun evader
By Mr Jason S
You must defeat the winter monster in order for spring to come.
You are going to fight as Spring Warrior (blue circle) and he shoots flowers(representation of spring) to kill the... more
By Darren Schnare
Lineographic drawing app.
Slinky the Spring
By Eugene Mirotin
A slinky simulation
Click to Spin and Win
Order out of Chaos
By Tristan Brehaut
Mouse interaction with an array of squares. Colored like spring time :) Mousedown to enhance the effect.
By Felix Woitzel
3 support particles (with mouse 4) and 3 springs + custom spline using a Bernstein polynomial of degree 6.
Pop them bubbles! :D
By Mathieu Sylvain
The spring bees come in spring, click and they will spring away!
By Florian Maul
Scorched Earth clone for two players.
- Adjust your browser window size for terrain sizes
- Press F5 until you have a desired terrain and tank placement
By Jon Faviell
Just some pretty unicode flowers that rotate and change colors. Updated to save a few more bytes. :)
By Jack Rugile
This is a canvas demo that overlaps multiple circles drawn at a low opacity. The color shifts over time and the circles increase in size. The composite mode is set to lighter and t... more
By Ian Sullivan
Control 'mother duck' with your mouse and watch her hatchlings follow.
Happy three ferns!
By Dmytro Mindra
Script draws three happy and animated Barnsley fern fractals.
By Sven Bergström
3D projections in 2D, 50x50 grid mathed about with.
By Antoine LE CALVEZ
It creates a circular moiré pattern, looks perfect on recent Firefox, not as good on Chrome
Dawn of butterflies
By Frank Cortes
What is a spring without butterflies? These butterflies are generated using Bezier Curves, and they are flying while the dawn starts.
By Evgeny Stepanishchev i LO
Use arrow keys to control your red tank (and SPACE to fire). You've to kill as many endless enemies as you can before you imminent die. You have 3 lifes and can get one for every 20 dead enemies.
By François CREVOLA
It randomly generates a maze ! Worth mentionning that the script is small enough to be in tweet !!