Top dweets this year

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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    u(t) is called 60 times per second.
    t: Elapsed time in seconds.
    S: Shorthand for Math.sin.
    C: Shorthand for Math.cos.
    T: Shorthand for Math.tan.
    R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5)
    c: A 1920x1080 canvas.
    x: A 2D context for that canvas.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Food

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rodrigo.siqueira

remix of d/34722 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`invert()`
for(𝕏=X=Y=i=3e4;i--;𝕏=X,x.fillRect(2e3+Y*1700,360-X*1e3,t<1,.1))X=S(X*X-Y*Y*.6),Y=C(2*𝕏*Y+2.1)-T(i-t)/(i%19+1)/8

Jan 12 2026 2:35 AM UTC

}// 138/140

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Metamorphosis

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kyle_serbov

remix of d/34730 by u/kyle_serbov

function u(t) {

for(i=9999;i--;X+=A[D],Y+=A[D^3])!t++&&(M={},A=[S=D=0,4,0,-4],X=Y=600),x.fillRect(X,Y,4,4),M[X+A[r=-~D%4]+[Y+A[r^3]]]||(D=r),M[X+[Y]]=S++%55

Jan 10 2026 10:33 AM UTC

}// 140/140

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made it faster

u/kyle_serbov

You can change the number '55' at the end to give a different pattern.
u/ximavus

If you remove the %55 entirely it fills and leaves a internet logo

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seedanski

function u(t) {

for(i=6e3;i--;)x.fillStyle=`hsl(${S(i*i+t)*360+t*60},99%,50%)`,x.fillRect(960+S(i+t)*i/3+C(i/9+t)*80,540+C(i-t)*i/3+S(i*i)*50,3,3)

Jan 10 2026 7:29 AM UTC

}// 131/140

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Liquid Plasma Storm

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rodrigo.siqueira

remix of d/34670 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`invert()sepia(`,X=t,Y=t*99-450;for(i=1e4;--i;x.fillRect(912+5*Y+5*X,7*(X-Y)+740,.2,t<4))X=Y*.9993-(((Y=9-X)<0)*X+9)+Y/9

Jan 6 2026 2:09 AM UTC

}// 135/140

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Emanation

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ThatChoco

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<999;i++)
x.fillRect(i/1.7*100+(t%(4/T(t)))*300*T(t)-800,0,10,1100)

Jan 2 2026 5:15 AM UTC

}// 109/140

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u/cantelope

#oddlyUnsatisfying (still upvoted!)
u/ximavus

welcome to dwitter!

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ximavus

function u(t) {

for(i=14400;i--;x.fillStyle='hsl('+i%(t*99)+' 100%50%)')x.fillRect(16*(i%120),9*~~(i/120),16,9)

Dec 28 2025 9:48 PM UTC

}// 95/140

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This one looks nice

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lewdev

remix of d/28640 by u/lewdev

function u(t) {

eval(unescape(escape`䄽猽㹸⹦楬汓瑹汥㵳ੲ㵍慴栮牡湤潭੸⹦潮琽∲捭✢ੁ怣〰〱怊琿砮晩汬剥捴⠰ⰰⱷ㴲攳ⱷ⤺昽孝ੁ怣てだ੦潲⡩㴳㤻椭ⴻ晛楝㵲⠩㸮㤹㼰㨨晛楝簰⤫㤩砮晩汬呥硴⡲⠩⨹㸾〬椪㔰ⱹ㵦孩崪㠩`.replace(/u([^D].)/g,'$1%')))

Dec 19 2025 10:57 PM UTC

}// 135/140

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#Matrix Rain with #numbers HD

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ximavus

function u(t) {

x.fillRect(x.globalAlpha=.001/t,0,2e3,1080)
for(i=2e3;i--;)x.clearRect(i,C(t+i)**S(t+i)*t,9,9)

Dec 14 2025 7:27 PM UTC

}// 94/140

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Demonstration of a bug I found with x.globalAlpha. Breaking the .001961 limit. As long as it is more than .001961 at some point if will be valid

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ximavus

function u(t) {

t?_='Backspace':$=''
onkeydown=k=>{l=k.key;if(l.length<2|l==_){l==_?$=$.slice(0,-1):$+=k.key}l=='Enter'?(eval($),$=''):0}
throw $

Dec 11 2025 6:43 PM UTC

}// 129/140

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Dwitter-CMD! (click on the canvas, write dwitter code and press enter)

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lewdev

remix of d/34595 by u/ximavus

function u(t) {

A=s=>x.fillStyle=s
A`#0001`
t?x.fillRect(0,0,2e3,2e3):f=[]
A`#0f0`
f.push([Math.random()*2e3,0])
for(a of f)x.fillText(0,a[0],a[1]+=9)

Dec 10 2025 10:05 PM UTC

}// 134/140

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#Matrix Rain

u/ximavus

I didn't know the for(a of f) one. Gonna use it now. Useful!