Fibonacci in JavaScript 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 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 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 All Languages ><> ALGOL 68 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 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 Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 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 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 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 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 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 # Golfer Points Bytes Time Submitted 446th c-py 750 44 9ms 2 Nov 2025 482nd Nuottajarvi 733 45 10ms 9 Aug 2018 482nd ConorOBrien-Foxx 733 45 8ms 20 Dec 2018 482nd skps2010 733 45 9ms 1 Jan 2019 482nd andriynoskov 733 45 9ms 20 Aug 2019 482nd lissitz 733 45 10ms 27 Apr 2020 482nd synchromic 733 45 9ms 8 May 2020 482nd dsntzn 🇸🇰 733 45 11ms 13 Aug 2020 482nd Zkrgu 733 45 9ms 12 Dec 2020 482nd underdude 733 45 10ms 7 Jan 2021 482nd sech1p 🇵🇱 733 45 12ms 26 Jun 2021 482nd garrisonhh 733 45 11ms 9 Oct 2021 482nd HenryTy83 733 45 10ms 4 Dec 2022 482nd jorbDehmel 🇺🇸 733 45 9ms 7 Apr 2023 482nd adamnielson42 🇺🇸 733 45 8ms 24 Apr 2023 482nd raszpi 🇭🇺 733 45 9ms 1 Sep 2023 482nd yuchuehw 733 45 9ms 1 Jan 2024 482nd kydogia 733 45 14ms 28 Mar 2024 482nd Voltrifrodec 🇸🇰 733 45 10ms 25 Nov 2025 500th skagget77 717 46 10ms 10 Oct 2017 500th Erutuon 717 46 10ms 21 Feb 2018 500th OmegaB0t 717 46 9ms 19 Apr 2018 500th anananlyjlyj 717 46 9ms 4 Jul 2018 500th dieckie 717 46 9ms 28 Feb 2019 500th arntj 717 46 10ms 13 Apr 2019 500th Ranner198 717 46 9ms 15 Nov 2019 500th dijs 717 46 10ms 5 Dec 2019 500th Kauhentus 717 46 9ms 7 Dec 2019 500th unoctium1 717 46 9ms 14 Dec 2019 500th vonKrafft 717 46 9ms 25 Mar 2020 500th jcheritat 717 46 12ms 6 Sep 2020 500th jcsawyer123 717 46 12ms 17 Sep 2020 500th godraadam 717 46 10ms 13 Apr 2021 500th Y0UR-U5ERNAME 717 46 9ms 3 Sep 2021 500th ethandhunt 717 46 11ms 19 Sep 2021 500th martinnorling 🇸🇪 717 46 8ms 8 Feb 2022 500th sebmandal 717 46 10ms 10 May 2022 500th C0de5mith 🇺🇸 717 46 9ms 3 Aug 2022 500th Ephellon 717 46 9ms 4 Dec 2022 500th olivermrose 🇺🇸 717 46 11ms 17 Jan 2023 500th eiburns 717 46 10ms 9 Oct 2023 500th loganmacdougall 🇨🇦 717 46 9ms 19 Jan 2024 500th Jaro32768 🇸🇰 717 46 9ms 8 Feb 2024 500th Palladium02 717 46 10ms 4 May 2025 500th kellantech 717 46 9ms 17 Dec 2025 526th Kladdkaka 702 47 10ms 9 Feb 2018 526th HippasusSurd 702 47 10ms 25 Mar 2018 526th sgtdck 702 47 10ms 16 Oct 2018 526th NotGate 702 47 10ms 21 Jan 2019 526th Cortan122 702 47 9ms 26 Feb 2019 526th shayded-exe 702 47 12ms 10 Apr 2019 526th Jooraz 702 47 12ms 12 May 2019 526th nkansal96 702 47 11ms 21 May 2019 526th JustinDowty 702 47 10ms 12 Jun 2020 526th Juici 702 47 9ms 17 Sep 2020 526th berenteb 🇭🇺 702 47 9ms 11 Dec 2020 526th flowernal 702 47 9ms 25 Dec 2020 526th lukalotl 702 47 9ms 24 May 2021 526th BrettMerri 702 47 8ms 1 Dec 2021 526th Domicnt 702 47 9ms 2 Jan 2022 526th Mednoob 702 47 12ms 8 Sep 2022 526th ShiraJoseph 🇺🇸 702 47 10ms 26 Feb 2023 526th KjeldSchmidt 702 47 10ms 23 Apr 2023 526th bryanmytko 702 47 8ms 7 Sep 2023 526th Seis 702 47 10ms 14 May 2024 526th heanyang1 702 47 9ms 22 Apr 2025 526th timothytomato 702 47 10ms 26 May 2025 526th Florian-Pubert 702 47 9ms 25 Jun 2025 526th jacekwladzinski 702 47 10ms 2 Oct 2025 526th johnkiernander 702 47 10ms 12 Dec 2025 551st jsoendermann 688 48 9ms 13 Dec 2017 551st belkamax05 688 48 9ms 26 Mar 2018 551st cdanek 688 48 9ms 2 Apr 2018 551st MechaFinch 688 48 12ms 19 Feb 2019 551st TTWNO 688 48 9ms 15 Apr 2019 551st jrburga 688 48 9ms 18 Nov 2019 551st marekMin 688 48 10ms 10 Jun 2020 551st nico-bachner 688 48 11ms 28 Dec 2020 551st LakeThomason 688 48 10ms 1 Jun 2021 551st hymanimy 688 48 13ms 27 Jul 2021 First Prev 481–560 of 870 Next Last