JS1024 – Annual JavaScript and Shader Code Golfing Competition

Participants have 15 days to create a cool JavaScript or GLSL program in 1024 bytes or less.
Check out the rules and the existing demos for some cool examples.
Entry is free, so give it a try, it's really fun! >:)

• 1st of July - theme is announced, competition starts, submission form is open
• 19th of July - deadline!!! submission form is closed, you can rate other projects (19 Jul 9:00 PM GMT+00:00)
• 1st of August - no more ratings!
• a few days later - boom, the results are published and winners are announced

Press here if you want to be announced when it starts

• Your source code mustn't take up more than 1 KiB
• No malicious/harmful code allowed
• You're not allowed to extract personal data from users
• No external files allowed (external scripts and images will be automatically blocked)
• Do not share your private participant key. You will use it to rate other projects
• Upload a readable version (+ comments) of your code to help people understand it (optional)

I will analyze the code before making demos public in order to ascertain if they are safe.

Classic Canvas Mode Download shim

• a = the canvas element
• b = the body element
• c = the 2d context
• d = the document element
• M = a bool that indicates if the user is on mobile

• The p5js library will be used in your demo (p5.sound isn't included)
• You only need to submit the script (the setup(), draw() and the other stuff...)
• Check out the documentation: https://p5js.org/get-started/

Shader demo Download shim

• Write your entry like a Shadertoy demo (WebGL1 / GLSL ES 1.0 only)
• Canvas is responsive but its ratio is fixed: 16/9
• Shader inputs: iResolution (w, h), iTime (float), iTimeDelta (float), iFrame (int), iMouse (x, y, clickx, clicky), iDate: float

No shim

• It's an empty HTML file, lol. You start from scratch. Anything is allowed (2d canvas, 3d, etc...)

Note: there was a p5js category in the past but I removed it to keep things balanced
Note: some chars take more than 1 byte: 2 bytes for chars U+80 to U+7FF, 3 bytes for chars U+800 to U+FFFF, 4 bytes for chars U+FFFF to U+10FFFF, when encoded in UTF-8
Note: in 2024, all demos will have the navigation bar my default. Under this bar, there will be an iframe with your demo, so you have to make sure your demo works inside iframes