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ALGOL 68
ArkScript
Assembly
AWK
Bash
BASIC
Berry
brainfuck
C
C#
C++
Civet
Clojure
COBOL
Coconut
Common Lisp
Crystal
D
Dart
Elixir
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F#
Factor
Forth
Fortran
Gleam
Go
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Groovy
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iogii
J
Janet
Java
JavaScript
jq
Julia
K
Kotlin
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Nim
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PHP
PowerShell
Prolog
Python
R
Raku
Rockstar
Ruby
Rust
Scheme
sed
SQL
Swift
Tcl
TeX
V
VimL
Wren
Zig
Experimental Language
05AB1E
APL
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
Knight
Lily
Luau
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
Umka
Vala
Vyxal
ZuzuScript
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All
12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Alphabetic Numbers
Arabic to Roman
Arithmetic Numbers
Arrows
Ascending Primes
ASCII Table
Billiards
brainfuck
Calendar
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
Connect Four
Continued Fractions
CSS Colors
Cubes
Day of Week
DFA Simulator
Diamonds
Divisors
Emirp Numbers
Emirp Numbers (Long)
Emojify
Evil Numbers
Evil Numbers (Long)
Factorial Factorisation
Farey Sequence
Fibonacci
Fizz Buzz
Foo Fizz Buzz Bar
Forsyth–Edwards Notation
Fractions
Game of Life
Gijswijt’s Sequence
Gray Code Decoder
Gray Code Encoder
Happy Numbers
Happy Numbers (Long)
Hexdump
Hilbert Curve
Intersection
Inventory Sequence
ISBN
Jacobi Symbol
Kaprekar Numbers
Kolakoski Constant
Kolakoski Sequence
Leap Years
Levenshtein Distance
Leyland Numbers
ln 2
Look and Say
Lucky Numbers
Lucky Tickets
Mahjong
Mandelbrot
Maze
Medal Tally
Minesweeper
Morse Decoder
Morse Encoder
Multitap Input
Musical Chords
N Queens
Niven Numbers
Niven Numbers (Long)
Number Spiral
Odious Numbers
Odious Numbers (Long)
Ordinal Numbers
PalindromemordnilaP
Pangram Grep
Partition Numbers
Pascal’s Triangle
Pernicious Numbers
Pernicious Numbers (Long)
Poker
Polyominoes
Prime Numbers
Prime Numbers (Long)
Proximity Grid
QR Decoder
Quine
Recamán
Repeating Decimals
Reverse Polish Notation
Reversi
Rijndael S-box
Rock-paper-scissors-Spock-lizard
Roman to Arabic
ROT13
Rule 110
Scrambled Sort
Set
Seven Segment
SI Units
Sierpiński Triangle
Smith Numbers
Spelling Numbers
Star Wars GPT
Star Wars Opening Crawl
Sudoku
Sudoku (Fill-in)
Taxicab Numbers
Ten-pin Bowling
Tic-tac-toe
Time Distance
Tongue-twisters
Topological Sort
Tower of Hanoi
Transpose Sentence
Trinomial Triangle
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Experimental Hole
Apéry’s Constant
Binary Lambda Calculus
Chess960 Decoder
Chess960 Encoder
Crossword
CSS Colors (Inverse)
CSS Grid
Dragon Curve
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Hexagonal Spiral
Highly Composite Numbers
Huffman Encoder
NFA Simulator
Nim
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Turtle
Tutorial
Ulam Sequence
Hole
Golfer
Bytes
Time
Submitted
Collatz
nickweissert-star
58
285ms
13 days ago
Collatz
prestosilver
70
281ms
14 May 2026
Collatz
madeforlosers
75
264ms
13 Apr 2026
Collatz
madex
52
260ms
16 Mar 2026
Collatz
NoneTheFewer
105
293ms
27 Dec 2025
Collatz
DocJade
70
239ms
27 Dec 2025
Collatz
kmathis22
64
274ms
13 Nov 2025
Collatz
snoozingnewt
76
310ms
8 Oct 2025
Collatz
CaedenHarper
3,225
178ms
16 Aug 2025
Collatz
DialFrost
🥇
47
2,424ms
8 Jun 2025
Collatz
bitsandbeyond
🥇
47
2,313ms
8 Jun 2025
Collatz
Ripick
52
250ms
1 Jun 2025
Collatz
jborean93
🥇
47
1,999ms
9 Apr 2025
Collatz
grey0ut
48
2,224ms
8 Apr 2025
Collatz
corbob
🥇
47
2,152ms
8 Apr 2025
Collatz
sean-niemann
🥇
47
2,314ms
7 Apr 2025
Collatz
KevinMarquette
🥇
47
2,159ms
7 Apr 2025
Collatz
DelaneyJM
🥇
47
2,210ms
7 Apr 2025
Collatz
IISResetMe
52
262ms
7 Apr 2025
Collatz
JPRuskin
52
248ms
7 Apr 2025
Collatz
HCRitter
61
280ms
7 Apr 2025
Collatz
PlatoHero
72
224ms
10 Nov 2024
Collatz
Mabeloid
3,227
168ms
17 Sep 2024
Collatz
Steffan153
50
445ms
9 Aug 2024
Collatz
dokutan
67
240ms
28 Jul 2024
Collatz
Flobois
63
224ms
23 Jul 2024
Collatz
israem
65
271ms
20 May 2024
Collatz
HumanoidCPU
3,225
231ms
9 May 2024
Collatz
dcgjb
52
231ms
29 Jan 2024
Collatz
janbehrens
65
491ms
3 Dec 2023
Collatz
Msleizak
94
293ms
29 Nov 2023
Collatz
Feniske
52
261ms
7 Nov 2023
Collatz
NicolasBn
65
270ms
29 Sep 2023
Collatz
TaserTheFox
54
227ms
31 May 2023
Collatz
Shanethegamer
51
409ms
15 May 2023
Collatz
harperse
81
279ms
4 May 2023
Collatz
waltervos
75
248ms
8 Feb 2023
Collatz
MeWhenI
52
229ms
28 Jan 2023
Collatz
Betuaredead
85
246ms
5 Jan 2023
Collatz
PowershellKnut
60
294ms
31 Dec 2022
Collatz
retrohun
16,225
211ms
27 Dec 2022
Collatz
SinstralK
138
292ms
6 Oct 2022
Collatz
MaxCastella
60
248ms
29 Sep 2022
Collatz
5quiwyrm
52
226ms
4 Sep 2022
Collatz
janssenu-assurity
71
265ms
31 Aug 2022
Collatz
juliansiebert
58
251ms
15 Aug 2022
Collatz
Lydxn
50
506ms
15 Aug 2022
Collatz
sisyphus-ppcg
53
399ms
15 Aug 2022
Collatz
Arnaud-beep
68
293ms
11 Aug 2022
Collatz
Clebam
70
240ms
1 Aug 2022
Collatz
northvandrew
77
259ms
15 Jul 2022
Collatz
KatieLG-Transpiler
4,231
190ms
24 Jun 2022
Collatz
clemmesserli
80
308ms
20 Jun 2022
Collatz
ryanlanegit
53
232ms
19 Jun 2022
Collatz
nwellnhof
50
445ms
3 Jun 2022
Collatz
ze-h
89
264ms
1 Jun 2022
Collatz
krcs
53
252ms
9 May 2022
Collatz
SirBogman
50
582ms
5 May 2022
Collatz
KatieLG
4,231
154ms
4 May 2022