Dwitter - javascript demos in 140 characters

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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taupelink

remix of d/35910 by u/taupelink

function u(t) {

eval(unescape(escape`𪑦𚀡𭀩𮱯👍𨑴𪀮𬡡𫡤𫱭𞱘👯𚀩𛁙👯𚀩𞱬🐨𞀼🀳𚡯𚀩𚐭𜐭𜰪𫰨𚑽𩠽𭐽🠱𝠪𤰨𭐯𝀫𦀪𭐩𚠪𜠫𚁵𙐸𛐴𚱃𚁨𚱙𚡨𚐩𚠪𜠻𩡯𬠨𪐽𪰽𜑥𝀻𪐭𛐻𮀮𩡩𫁬𤡥𨱴𚁘𚠲𩐳𚱲𚡃𚁨👩𛱫𚠶𛠳𚐬𦐪𜐰𞀰𚱲𚡓𚁨𚐬𩠨𞀪𭀩𚱦𚀨𭰽𝀫𭀩𚡨𚐦𫀿𜀺𭰬𭰩𚑲🐲𝰰𚡴`.replace(/u../g,'')))

Jul 18 2026 11:21 PM UTC

}// 140/140

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d/35933

u/taupelink

Reload for a variation

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luta

remix of d/35904 by u/luta

function u(t) {

eval(unescape(escape`󭌿󨼮󭽩󩍴󪍼󟝷󟝩󫭮󩝲󥽩󩍴󪌺󠜽󦽮󟝫󟜰󧜻󮌮󩭯󫭴󟜧󜝩󫬢󙼻󩭯󬬨󪜽󜜶󞽩󛜭󞼩󭌿󠝛󪝝󟬰󟽸󛭦󪝬󫍔󩝸󭌨󠝛󪝝󛍩󙜴󚬲󝌰󚼶󜌬󜜵󜌫󚍩󛼴󯌰󚜪󜬷󜌩󞬰󞭁󦽩󧜽󜜶󛝩󒭯󫭣󫍩󨽫󟝟󟜾󠝛󫭝󟝁󦽫󟜨󝌪󚌷󚭟󛭹󛽷󯌰󚜫󞌪󧼮󮌯󭽼󜌩󙬱󝝝󛍁󦽮󟝫󧜽󜌻`.replace(/u../g,'')))

Jul 18 2026 9:01 PM UTC

}// 136/140

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15 puzzle #Game (cheater version)

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rodrigo.siqueira

remix of d/35809 by u/taupelink

function u(t) {

for(i=z=2e3;i--;x.fillRect(i,270*t,3,9))q=z/19,x.fillStyle=R(r=280-(z=(95+60*S(i/230-S(z/2+t)))/z)*z,r*q,r**q,q/3),z+=6-5*C(T(z-t*t/z)+r/z)

Jul 16 2026 11:56 PM UTC

}// 139/140

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Rust surface

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taupelink

remix of d/35910 by u/taupelink

function u(t) {

eval(unescape(escape`昽甽㸶⩓⡵⭷⤪⨲⬨甥㘮㌭㌮ㄴ⭓⡨⭢⼴⩴⤯㌩⨪㈻景爨椽欽ㅥ㐻椭ⴻ砮晩汬剥捴⠹㘰⭲⩓⡨⤬㔴〭爪䌨栩ⱷⱷ⤩栽椯欪㘮㌬眽琯㐬爽㤰⩴ⱸ⹦楬汓瑹汥㵦⡢㴶⩴⨪⸵⤫昨琫⡢⼲簰⤪栩☷㼧⌳㤷✺✣䕄䘧`.replace(/u([^D].)/g,'$1%')))

Jul 17 2026 9:35 PM UTC

}// 140/140

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d/35928

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ichrvk

function u(t) {

x.fillStyle='#0012';x.fillRect(0,0,2e3,2e3);for(i=256;i--;)z=i-t*60&255,r=4e4/z,x.fillStyle=R(z,9,255),x.fillRect(960+C(i)*r,540+S(i)*r,9,9)

Jul 16 2026 8:28 PM UTC

}// 140/140

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A blue-to-magenta hyperspace tunnel with persistent luminous trails.

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luta

remix of d/32610 by u/lewdev

function u(t) {

a=[];for(i=c.width=128;i<1e4;x.fillRect(X=i&127,Y=i++>>7,Y<24||X<48?a[X%16]:(X<72?a[X%12+2]:a[(X+8)%16]),1))a[i&127]=Math.random()

Jul 17 2026 5:22 PM UTC

}// 130/140

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#Stereogram (3 pillars)

u/luta

3 pillars or 4 pillars, how many do you see?

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jesterjunk

function u(t) {

for(i=8e3;i--;x.fillRect(960+r*S(a),540+r*C(a),4,4))a=i%9*6.28/9+S(i+t),r=i%999*9*S(i/99+t),x.fillStyle=R(i%255,255-i%255,128+127*S(i+t),.1)

Jul 19 2026 6:57 AM UTC

}// 140/140

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katkip

remix of d/15010 by u/katkip

function u(t) {

t||(a=b=1);for(i=999;i--;)x.fillRect(60+a*200,560+b*90-t*50,t<6?1:0,1),a+=S(b/4+t*S(b/a-S(t*b+t/a-C(a+t/5)))/49)*3,b+=C(a/3);x.globalAlpha=1

Jul 15 2026 10:55 PM UTC

}// 140/140

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Secret UFO !!!

u/lewdev

Just a comment from somebody from Hawaii: that looks like Chinaman's Hat, a tiny island just off the coast of Kaneohe. Great Dweet!
u/BuRRak

Completely unrelated to this cute hat dweet, but I don't know where to write it :D It's so great to see that this site is still so active :)

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KilledByAPixel

function u(t) {

eval(unescape(escape`󩭯󬬨󨼮󭽩󩍴󪍼󟝩󟜳󜌰󞽩󛜭󞼩󩭯󬬨󦜽󭌪󝬰󚽩󛍳󟜨󜼰󜌭󪜩󚬪󜬬󦌽󝼻󦌭󛜻󚍘󧭙󟬾󝬩󙜴󙬦󮌮󩭩󫍬󤭥󨽴󚌹󝬰󛝘󚭷󚽷󛼮󝌫󜼪󤼨󦜯󞜹󚜪󪜬󬼯󞌰󛍷󛍳󚜩󮌮󩭩󫍬󤽴󮝬󩜽󨍨󬽬󚌤󮼨󦜾󟬹󚜪󞜰󯜠󞜹󙜠󙍻󚌨󦜾󟬴󧭘󚜦󜜿󝬰󞬹󚜫󚍙󙜳󜬾󜜩󚬳󜍽󙝠󛍷󟜹󚽳󛼲󞜹`.replace(/u../g,'')))

Jul 15 2026 2:31 AM UTC

}// 140/140

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Skydreams JS1024 Demo 🌈☁️ https://js1024.fun/demos/2026/25/bar

Show more comments…
u/KilledByAPixel

Enhanced version (keyboard & touch support) - https://killedbyapixel.github.io/TinyCode/1K…
u/vain

hot shit. I really love the enchanged game version -
u/joji

you totally made the game addicting
u/joji

is it open source?
u/DaSpider

Marble madness action
u/tomxor

Nice, the checker pattern reminds me of the sonic half pipe for some reason.

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taupelink

remix of d/35927 by u/taupelink

function u(t) {

for(m=t?0:2e4;m--;x.fillRect(m*m%2004,m%1200,-i,-i))i=m&223,x.fillStyle=`hsl(${h=555+i%34-(m&15?0:525)},${70+m/1e3}%,${55+i%17}%,${i/h}`

Jul 18 2026 12:38 AM UTC

}// 136/140

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d/35929