Collatz in all languages in bytes. Achievements Cheevos Holes Languages Medals Miscellaneous All Holes 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 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) 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 05AB1E APL 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 Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 ArkScript Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl 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 iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Hole 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 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) 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 481st ovs-code 🇩🇪 898 89 458ms 24 Jul 2024 481st jipsong 🇩🇪 898 89 450ms 7 Apr 2025 481st DialFrost 🇸🇬 898 89 485ms 24 Dec 2025 481st dokutan 898 89 425ms 8 Feb 2026 485th DialFrost 🇸🇬 897 29 160ms 15 Mar 2025 486th JayXon 🇺🇸 897 74 2,958ms 21 hours ago 487th error256 897 81 18ms 19 Mar 2026 488th nwellnhof 🇩🇪 896 69 24ms 4 May 2022 488th m-tkach 🇺🇦 896 69 18ms 4 May 2022 488th GolfingSuccess 🇬🇷 896 69 19ms 5 May 2022 488th jared-hughes 896 69 18ms 5 May 2022 488th ovs-code 🇩🇪 896 69 26ms 5 May 2022 488th btnlq 896 69 17ms 5 May 2022 488th sisyphus-ppcg 🇦🇺 896 69 15ms 6 May 2022 488th lynn 896 69 17ms 22 Aug 2022 488th Steffan153 🇫🇮 896 69 17ms 15 Nov 2022 488th AlexanderFair 896 69 24ms 19 Jul 2023 488th pardouin 🇫🇷 896 69 18ms 11 Nov 2023 488th AlephSquirrel 896 69 448ms 30 Dec 2023 488th kg583 🇺🇸 896 69 24ms 28 Jan 2024 488th davecame 896 69 24ms 20 Aug 2024 488th zacjl 896 69 18ms 19 Sep 2024 488th starfihs 896 69 17ms 12 Oct 2024 488th kops-cg 896 69 24ms 9 Feb 2025 488th sean-niemann 🇺🇸 896 69 18ms 7 Mar 2025 488th plcc0 896 69 16ms 26 Mar 2025 488th yujh-yujh 🇬🇸 896 69 24ms 28 Mar 2025 488th moustave 896 69 17ms 10 Jun 2025 488th 4atj 896 69 3,516ms 30 Jun 2025 488th dirckvdende 896 69 17ms 11 Jul 2025 488th xnor-gate 896 69 17ms 19 Aug 2025 488th BrunoVisnadi 🇧🇷 896 69 23ms 1 Oct 2025 488th Mukundan314 896 69 18ms 13 Nov 2025 488th bizy-coder 896 69 16ms 21 Nov 2025 488th duckyluuk 🇳🇱 896 69 19ms 4 Dec 2025 488th bricknellj 896 69 17ms 4 Dec 2025 488th Seek64 🇩🇪 896 69 17ms 26 Dec 2025 488th jusaka 896 69 16ms 12 days ago 488th CaedenHarper 🇨🇦 896 69 17ms 10 days ago 520th MichalMarsalek 🇨🇿 896 87 443ms 5 May 2022 520th Kloppermand 🇩🇰 896 87 436ms 7 Oct 2022 520th bwat2 896 87 464ms 6 Apr 2023 520th bpharaldsson 896 87 397ms 9 Feb 2026 524th Shanethegamer 🇺🇸 895 61 4ms 31 Oct 2022 524th MeWhenI 🇻🇦 895 61 4ms 4 Nov 2022 526th Yewzir 🇧🇪 895 72 134ms 20 Nov 2025 527th oeb25 895 93 129ms 16 May 2022 527th snobee 🇨🇦 895 93 130ms 8 Dec 2022 527th logvp 895 93 127ms 2 Jan 2024 527th smartiel 895 93 128ms 12 Aug 2024 527th trist224 🇫🇷 895 93 125ms 12 Aug 2024 527th nullie 895 93 134ms 19 Dec 2024 527th lolgeny 895 93 135ms 22 Feb 2025 534th canissimia 🇦🇶 895 110 3,055ms 20 Feb 2023 535th Steffan153 🇫🇮 894 52 7ms 31 Dec 2022 535th blaztoma 🇱🇹 894 52 8ms 18 Jan 2026 537th frankgraziano 894 75 16ms 23 Feb 2026 538th GolfingSuccess 🇬🇷 894 95 61ms 5 May 2022 538th Alex-x90 🇺🇸 894 95 64ms 4 Dec 2022 538th Mandrzejy 🇵🇱 894 95 59ms 22 Mar 2024 538th roupiq 🇵🇱 894 95 61ms 4 days ago 542nd snoozingnewt 🇨🇦 894 96 112ms 4 Dec 2025 542nd Steffan153 🇫🇮 894 96 111ms 27 Feb 2026 544th jared-hughes 894 130 22ms 15 Dec 2024 545th stefangimmillaro 893 71 95ms 2 Oct 2022 545th Steffan153 🇫🇮 893 71 106ms 23 Feb 2023 545th Shanethegamer 🇺🇸 893 71 101ms 16 May 2023 545th sean-niemann 🇺🇸 893 71 100ms 12 Jul 2024 549th Lydxn 🇨🇦 893 108 322ms 6 May 2022 549th CaedenHarper 🇨🇦 893 108 346ms 5 Oct 2025 551st primo-ppcg 🇹🇭 892 52 219ms 5 May 2022 551st dvargas46 🇺🇸 892 52 87ms 22 Dec 2022 553rd KatieLG 🇬🇧 892 60 11ms 4 May 2022 553rd ScottHamper 892 60 13ms 5 May 2022 553rd Re-Adventures 🇮🇳 892 60 13ms 5 May 2022 553rd 0x24a537r9 892 60 13ms 29 Jul 2022 553rd stefangabos 🇷🇴 892 60 12ms 19 Aug 2022 553rd eranws 892 60 11ms 10 Sep 2022 553rd GeorgeStechman 🇬🇧 892 60 12ms 26 Sep 2022 553rd BloodStormKnight 892 60 15ms 15 Oct 2022 First Prev 481–560 of 3,775 Next Last
