QR Decoder in all languages 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 Topological Sort 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 Knight 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 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 Knight 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 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 Topological Sort 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 151st MeWhenI 🇻🇦 765 165 28 Feb 2024 152nd acotis 762 229 31 May 2025 153rd MeWhenI 🇻🇦 761 188 28 Feb 2024 154th MeWhenI 🇻🇦 757 256 28 Feb 2024 155th lynn 756 158 17 Feb 2024 155th AlephSquirrel 756 158 12 Jan 2025 157th SirBogman 🇺🇸 755 172 31 Jan 2024 158th MeWhenI 🇻🇦 755 233 13 May 2023 159th MeWhenI 🇻🇦 754 181 28 Feb 2024 160th SirBogman 🇺🇸 751 168 2 Jan 2022 161st Irratix 🇳🇱 750 173 6 May 2022 162nd SirBogman 🇺🇸 749 150 31 Jan 2024 163rd MeWhenI 🇻🇦 748 157 28 Feb 2024 164th SirBogman 🇺🇸 747 104 28 Nov 2023 165th SirBogman 🇺🇸 745 145 24 Nov 2021 166th pardouin 🇫🇷 744 128 25 hours ago 167th sean-niemann 🇺🇸 744 134 24 hours ago 168th MeWhenI 🇻🇦 744 149 28 Feb 2024 169th sean-niemann 🇺🇸 743 212 23 Jun 2025 170th jared-hughes 741 164 9 Apr 2022 171st Natanaelel 🇸🇪 740 105 20 Feb 2024 172nd MeWhenI 🇻🇦 739 192 28 Feb 2024 173rd dvargas46 🇺🇸 737 185 7 Apr 2023 174th MeWhenI 🇻🇦 736 239 22 Apr 2024 175th SirBogman 🇺🇸 728 164 31 Jan 2024 176th NewDefectus 🇮🇱 728 167 21 Sep 2021 177th primo-ppcg 🇹🇭 727 131 28 Sep 2021 178th emplv 🇱🇻 727 163 28 Mar 2025 179th CLOStrophobic 🇮🇹 726 283 3 Mar 2025 180th ovs-code 🇩🇪 725 153 10 Mar 2024 181st prplz 🇦🇺 725 179 13 Jan 2024 182nd jared-hughes 721 180 9 Apr 2022 183rd GrayJoKing 🇦🇺 720 156 2 Oct 2021 184th MeWhenI 🇻🇦 713 219 13 Aug 2024 185th inventshah 709 178 12 Nov 2022 186th Seek64 🇩🇪 709 183 17 Jun 2025 187th MeWhenI 🇻🇦 708 138 28 Feb 2024 188th SirBogman 🇺🇸 702 163 31 Jan 2024 189th MeWhenI 🇻🇦 701 220 28 Feb 2024 190th inventshah 697 155 12 Nov 2022 191st jared-hughes 692 180 9 Apr 2022 192nd stefangimmillaro 691 229 12 May 2024 193rd MeWhenI 🇻🇦 689 172 5 Jan 2025 194th MeWhenI 🇻🇦 689 176 28 Feb 2024 195th kg583 🇺🇸 687 189 31 Jan 2024 196th jacobly0 🇺🇸 687 256 22 Apr 2024 197th MeWhenI 🇻🇦 684 623 27 Jan 2025 198th inventshah 683 190 12 Nov 2022 198th stefangimmillaro 683 190 8 Aug 2023 198th lifthrasiir 🇰🇷 683 190 16 Nov 2024 201st pardouin 🇫🇷 681 176 20 May 2025 202nd primo-ppcg 🇹🇭 679 201 24 Jan 2022 203rd NewDefectus 🇮🇱 675 160 28 Dec 2021 204th inventshah 675 174 12 Nov 2022 205th stefangimmillaro 673 229 18 Oct 2023 206th KrausRaus 🇺🇸 668 182 30 Jun 2024 207th kg583 🇺🇸 667 179 17 Jul 2024 208th jared-hughes 666 143 10 Sep 2022 209th MeWhenI 🇻🇦 666 418 17 Nov 2021 210th tayloia 🇬🇧 665 183 4 May 2023 211th MarcMush 🇫🇷 660 168 14 Jan 2024 212th duckyluuk 🇳🇱 659 197 23 Jun 2024 213th rucin93 🇵🇱 657 185 19 Jul 2024 214th lifthrasiir 🇰🇷 656 182 2 Dec 2024 215th nullie 656 198 14 Jun 2022 216th MeWhenI 🇻🇦 652 191 28 Feb 2024 217th KasperKivimaeki 🇫🇮 651 166 14 Feb 2025 218th stefangimmillaro 649 182 3 Oct 2023 219th stefangimmillaro 648 147 12 May 2024 220th emgordon154 648 241 29 Jun 2025 221st MostParsingVex 646 459 16 Jan 2025 222nd duckyluuk 🇳🇱 645 185 23 Jun 2024 223rd error256 645 329 29 Jul 2024 224th stefangimmillaro 644 227 3 Oct 2023 225th emgordon154 643 202 17 May 2025 Prev 151–225 of 425 Next