Collatz in JavaScript in bytes. Cheevos Holes Recent Holes Langs Medals Misc 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 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 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 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 Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir F# Factor Forth Fortran Gleam Go GolfScript 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 Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 F# Factor Forth Fortran Gleam Go GolfScript 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 Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 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 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 Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 62nd fuzzylojik-golf 🇺🇸 932 59 1 Jun 2025 62nd acollett89 932 59 17 days ago 78th KatieLG 🇬🇧 917 60 4 May 2022 78th ScottHamper 917 60 5 May 2022 78th Re-Adventures 🇮🇳 917 60 5 May 2022 78th 0x24a537r9 917 60 29 Jul 2022 78th stefangabos 🇷🇴 917 60 19 Aug 2022 78th eranws 917 60 10 Sep 2022 78th GeorgeStechman 🇬🇧 917 60 26 Sep 2022 78th BloodStormKnight 917 60 15 Oct 2022 78th dzshn 917 60 3 Dec 2022 78th biocommando 🇫🇮 917 60 20 Dec 2022 78th Betuaredead 917 60 5 Jan 2023 78th piano-miles 917 60 16 Jan 2023 78th Yewzir 🇧🇪 917 60 12 Feb 2023 78th shellbertt 🇨🇦 917 60 26 Feb 2023 78th zakariamouhid 917 60 20 May 2023 78th raphaelimahorn 917 60 23 Aug 2023 78th jbt 917 60 25 Dec 2023 78th olleicua 🇺🇸 917 60 15 Feb 2024 78th HumanoidCPU 917 60 3 May 2024 78th dokutan 917 60 13 Aug 2024 78th LostSyntax21 🇬🇧 917 60 10 Sep 2024 78th xyangst 917 60 28 Sep 2024 78th a6166231 🇨🇳 917 60 15 May 2025 101st c0d3-4-F00d 🇩🇪 902 61 6 May 2022 101st jackkav 902 61 26 Jun 2022 101st TechNolaByte 902 61 6 Jul 2022 101st Heathcorp 🇦🇺 902 61 17 Jul 2022 101st C0de5mith 🇺🇸 902 61 3 Aug 2022 101st sebipopa 🇷🇴 902 61 18 Aug 2022 101st moikaturns 🇬🇧 902 61 25 Sep 2022 101st FlorianCassayre 🇫🇷 902 61 27 Sep 2022 101st Mazn3k 902 61 1 Feb 2023 101st tvcv901 902 61 22 Mar 2023 101st unfinishedprogram 902 61 19 Jul 2023 101st snoozingnewt 🇺🇸 902 61 23 Sep 2023 101st funnyboy-roks 902 61 9 May 2024 101st bac0id 902 61 29 Jun 2024 101st madex 🇩🇪 902 61 9 Jul 2024 101st cdesodt 902 61 10 Oct 2024 101st RobertHoeh 902 61 5 Apr 2025 101st kirjavascript 902 61 4 May 2025 101st LvLError 902 61 29 May 2025 101st Lv0Sys 🇵🇱 902 61 30 May 2025 101st Protothor 902 61 30 May 2025 122nd Setvizan 887 62 12 Jan 2023 122nd GreenBeansAgainstVeganism 887 62 13 Jan 2023 122nd arctouch-cristiannevianna 887 62 3 Apr 2023 122nd Corxldyphik 887 62 11 Apr 2023 122nd Blockyheadman 887 62 1 Nov 2023 122nd ollyspooner 887 62 22 Nov 2023 122nd itserasmus 887 62 25 Jan 2024 122nd Jacob385 887 62 13 Mar 2024 122nd junkondo-jp 887 62 30 Jun 2024 122nd ShiraJoseph 🇺🇸 887 62 1 Mar 2025 132nd randolchance 873 63 8 Jan 2023 132nd CatsAreFluffy 873 63 18 Feb 2023 132nd amiralitaheri 873 63 23 Feb 2023 132nd RuyiLi 873 63 1 Apr 2023 132nd TaserTheFox 🇺🇸 873 63 25 May 2023 132nd pfysches-boop 873 63 6 Aug 2023 132nd mhgockel 873 63 19 Aug 2023 132nd NickTheEASDude 🇺🇸 873 63 18 Jan 2024 132nd 823126 873 63 14 Nov 2024 132nd Palladium02 873 63 12 May 2025 132nd 4very 873 63 24 days ago 132nd gigaprofisi 🇺🇸 873 63 17 days ago 132nd CaedenHarper 🇨🇦 873 63 5 days ago 145th elisherer 🇮🇱 859 64 5 Jun 2022 145th Ashikpaul 🇮🇳 859 64 29 Jul 2022 145th LukeBridges 🇬🇧 859 64 26 Oct 2022 145th florton 859 64 18 Jan 2023 145th DayDun 🇸🇪 859 64 24 Jan 2023 145th lyphyser 859 64 3 Jun 2023 Prev 76–150 of 247 Next