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ALGOL 68
Assembly
AWK
Bash
BASIC
Berry
brainfuck
C
C#
C++
Civet
Clojure
COBOL
Coconut
Common Lisp
Crystal
D
Dart
Elixir
Erlang
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Factor
Forth
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Go
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J
Janet
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jq
Julia
K
Kotlin
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Python
R
Raku
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Ruby
Rust
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sed
SQL
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Tcl
TeX
V
VimL
Wren
Zig
Experimental Language
05AB1E
APL
ArkScript
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
Lily
Luau
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
Umka
Vala
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All
12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Arabic to Roman
Arithmetic Numbers
Arrows
Ascending Primes
ASCII Table
Billiards
brainfuck
Calendar
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
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
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)
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
Connect Four
Crossword
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
NFA Simulator
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Taxicab Numbers
Turtle
Tutorial
Hole
Golfer
Bytes
Time
Submitted
Happy Numbers (Long)
DialFrost
134
260ms
18 Jan 2026
Happy Numbers (Long)
albanian-laundromat
🥇
130
291ms
15 Dec 2025
Happy Numbers (Long)
dokutan
534
299ms
12 Dec 2025
Happy Numbers (Long)
Adix-null
573
292ms
27 Nov 2025
Happy Numbers (Long)
CaedenHarper
🥇
130
291ms
5 Nov 2025
Happy Numbers (Long)
KasperKivimaeki
🥇
130
291ms
4 Oct 2025
Happy Numbers (Long)
targrik
164
272ms
30 Jun 2025
Happy Numbers (Long)
0xjac
137
296ms
17 Jun 2025
Happy Numbers (Long)
heanyang1
175
277ms
29 May 2025
Happy Numbers (Long)
yhm138
363
296ms
17 Feb 2025
Happy Numbers (Long)
emgordon154
132
291ms
17 Jan 2025
Happy Numbers (Long)
LostSyntax21
149
289ms
8 Jan 2025
Happy Numbers (Long)
edsrzf
139
297ms
23 Oct 2024
Happy Numbers (Long)
Mabeloid
746
284ms
18 Sep 2024
Happy Numbers (Long)
HumanoidCPU
207
311ms
26 Aug 2024
Happy Numbers (Long)
rifatx
203
285ms
17 Jul 2024
Happy Numbers (Long)
msbranicky
131
292ms
1 Jul 2024
Happy Numbers (Long)
bastatom
132
295ms
27 Feb 2024
Happy Numbers (Long)
hrubymar10
134
287ms
27 Feb 2024
Happy Numbers (Long)
jared-hughes
🥇
130
296ms
27 Feb 2024
Happy Numbers (Long)
snoozingnewt
148
266ms
4 Feb 2024
Happy Numbers (Long)
Yewzir
🥇
130
297ms
9 Jan 2024
Happy Numbers (Long)
kkoenig
194
295ms
4 Jan 2024
Happy Numbers (Long)
sean-niemann
🥇
130
277ms
6 Dec 2023
Happy Numbers (Long)
Shanethegamer
🥇
130
295ms
21 Nov 2023
Happy Numbers (Long)
hotmanga
223
281ms
8 Nov 2023
Happy Numbers (Long)
jerrandolph
162
293ms
3 Nov 2023
Happy Numbers (Long)
stefangimmillaro
🥇
130
286ms
14 Jun 2023
Happy Numbers (Long)
nwellnhof
🥇
130
276ms
2 Mar 2023
Happy Numbers (Long)
MeWhenI
🥇
130
278ms
9 Feb 2023
Happy Numbers (Long)
emplv
🥇
130
291ms
12 Jan 2023
Happy Numbers (Long)
kimbo
146
283ms
12 Jan 2023
Happy Numbers (Long)
retrohun
746
284ms
27 Dec 2022
Happy Numbers (Long)
Steffan153
🥇
130
285ms
3 Dec 2022
Happy Numbers (Long)
JRaspass
191
294ms
23 Sep 2022
Happy Numbers (Long)
KatieLG-Transpiler
601
288ms
24 Jun 2022
Happy Numbers (Long)
KatieLG
599
279ms
9 Apr 2022
Happy Numbers (Long)
j-Ewan
170
275ms
10 Mar 2022
Happy Numbers (Long)
ibeucaly
177
296ms
20 Nov 2021
Happy Numbers (Long)
Lydxn
🥇
130
283ms
2 Oct 2021
Happy Numbers (Long)
janbehrens
140
279ms
20 Sep 2021
Happy Numbers (Long)
JayXon
🥇
130
284ms
20 Sep 2021