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 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 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 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input 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 All Languages ><> 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 ALGOL 68 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> 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 ALGOL 68 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 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 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 Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input 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 # Golfer Points Bytes Time Submitted 710th snoozingnewt 🇨🇦 877 61 10ms 23 Sep 2023 710th funnyboy-roks 877 61 11ms 9 May 2024 710th bac0id 877 61 13ms 29 Jun 2024 710th madex 🇩🇪 877 61 11ms 9 Jul 2024 710th FortuiteMan 🇫🇷 877 61 12ms 10 Oct 2024 710th RobertHoeh 877 61 10ms 5 Apr 2025 710th LvLError 877 61 10ms 29 May 2025 710th miles-evan 877 61 11ms 5 Aug 2025 710th alexsave 877 61 10ms 13 Oct 2025 730th nwellnhof 🇩🇪 876 53 6ms 4 May 2022 730th GrayJoKing 🇦🇺 876 53 7ms 6 May 2022 730th blaztoma 🇱🇹 876 53 8ms 14 mins ago 733rd GolfingSuccess 🇬🇷 876 57 819ms 29 Aug 2025 734th MeWhenI 🇻🇦 876 110 247ms 9 Feb 2023 734th edsrzf 🇳🇿 876 110 262ms 28 Nov 2024 734th targrik 876 110 261ms 30 Jun 2025 737th AlephSquirrel 875 80 12ms 20 Apr 2023 737th ashtraypettingzoo 🇺🇸 875 80 15ms 1 Apr 2024 739th c0d3-4-F00d 🇩🇪 875 89 368ms 5 May 2022 739th fkantelberg 875 89 407ms 15 Jul 2023 739th TRexOnGit 875 89 432ms 16 Feb 2024 742nd inventshah 875 97 57ms 6 May 2022 742nd roupiq 🇵🇱 875 97 55ms 22 Nov 2023 744th DialFrost 🇸🇬 874 69 88ms 15 Jul 2024 745th Irratix 🇳🇱 874 72 2ms 4 May 2022 745th m-tkach 🇺🇦 874 72 2ms 4 May 2022 745th jared-hughes 874 72 2ms 6 Jul 2022 745th michael-pruglo 🇺🇦 874 72 2ms 13 Jul 2022 745th Steffan153 🇫🇮 874 72 2ms 3 Jan 2023 745th MeWhenI 🇻🇦 874 72 3ms 7 May 2023 745th ListeriaM 874 72 2ms 22 Aug 2023 745th JohandeRuiter 🇳🇱 874 72 3ms 14 Sep 2024 745th larcherMTT 874 72 2ms 5 Oct 2024 745th snyderek 🇺🇸 874 72 3ms 19 Feb 2025 745th 5quiwyrm 874 72 2ms 29 Jun 2025 745th TeodorDyakov 🇧🇬 874 72 3ms 8 Jul 2025 745th xiaoyiming123 874 72 2ms 12 Jul 2025 758th Steffan153 🇫🇮 874 83 510ms 9 Apr 2023 759th ovs-code 🇩🇪 874 85 16ms 11 Dec 2023 760th ovs-code 🇩🇪 873 83 54ms 1 Jul 2024 761st Andriamanitra 🇫🇮 872 54 41ms 21 Jul 2022 761st jared-hughes 872 54 37ms 12 Sep 2022 761st OhmNomNom 872 54 37ms 7 Oct 2022 761st olleicua 🇺🇸 872 54 41ms 21 Jan 2024 761st LostSyntax21 🇬🇧 872 54 42ms 12 Mar 2025 761st AbrahamJLR 🇻🇪 872 54 40ms 4 Jun 2025 761st vishal-mohanty 872 54 40ms 25 Aug 2025 768th DialFrost 🇸🇬 872 64 5ms 10 Jul 2024 769th Shanethegamer 🇺🇸 872 85 38ms 15 May 2023 769th albanian-laundromat 872 85 40ms 25 Aug 2025 771st dieggsy 872 97 28ms 8 Oct 2024 772nd ulucs 871 35 9ms 8 May 2022 772nd bstrat 871 35 9ms 6 Jun 2024 772nd wh3n3v3r 🇨🇿 871 35 8ms 18 Nov 2024 775th scpchicken 🇵🇼 871 45 365ms 4 May 2022 775th SirBogman 🇺🇸 871 45 225ms 5 May 2022 777th TFeld00 🇩🇰 871 71 24ms 17 May 2022 777th DialFrost 🇸🇬 871 71 24ms 15 Nov 2022 777th StefanHabel 🇨🇦 871 71 18ms 29 Nov 2022 777th nstearns96 🇬🇧 871 71 18ms 11 Jan 2023 777th hallvabo 🇳🇴 871 71 19ms 7 Feb 2023 777th anter69 🇭🇺 871 71 17ms 21 May 2024 777th rucin93 🇵🇱 871 71 17ms 10 Jul 2024 777th lelbal 871 71 19ms 26 Aug 2025 777th HETHAT 🇩🇿 871 71 23ms 23 Sep 2025 777th 09cf 871 71 17ms 18 Nov 2025 777th blaztoma 🇱🇹 871 71 24ms 25 Nov 2025 777th Languag3 871 71 23ms 5 Dec 2025 777th CommandLeo 🇮🇹 871 71 24ms 9 days ago 790th ovs-code 🇩🇪 871 133 42ms 8 Jul 2024 791st CaedenHarper 🇨🇦 869 60 434ms 28 Sep 2025 792nd Steffan153 🇫🇮 869 82 1,388ms 23 Feb 2023 793rd 123mjb 869 96 356ms 20 Nov 2025 793rd noescareno 869 96 406ms 21 Nov 2025 795th Shanethegamer 🇺🇸 869 98 127ms 15 Apr 2025 795th GolfingSuccess 🇬🇷 869 98 104ms 28 Nov 2025 795th DialFrost 🇸🇬 869 98 110ms 1 Dec 2025 798th Frowny 868 38 40ms 5 May 2022 798th stackofbears 868 38 42ms 14 Mar 2025 800th steffan-polygolf 868 73 87ms 23 Feb 2023 First Prev 721–800 of 3,533 Next Last