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 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 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 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 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 Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel 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 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 Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel 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 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 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 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 ovs-code 🇩🇪 769 164 10 Jul 2024 152nd Steffan153 🇫🇮 768 124 31 Jul 2024 153rd MeWhenI 🇻🇦 765 165 28 Feb 2024 154th acotis 762 229 31 May 2025 155th MeWhenI 🇻🇦 761 188 28 Feb 2024 156th MeWhenI 🇻🇦 757 256 28 Feb 2024 157th lynn 756 158 17 Feb 2024 157th AlephSquirrel 756 158 12 Jan 2025 159th SirBogman 🇺🇸 755 172 31 Jan 2024 160th MeWhenI 🇻🇦 755 233 13 May 2023 161st MeWhenI 🇻🇦 754 181 28 Feb 2024 162nd SirBogman 🇺🇸 751 168 2 Jan 2022 163rd Irratix 🇳🇱 751 173 6 May 2022 164th SirBogman 🇺🇸 749 150 31 Jan 2024 165th MeWhenI 🇻🇦 748 157 28 Feb 2024 166th SirBogman 🇺🇸 747 104 28 Nov 2023 167th SirBogman 🇺🇸 745 145 24 Nov 2021 168th sean-niemann 🇺🇸 744 134 21 days ago 169th MeWhenI 🇻🇦 744 149 28 Feb 2024 170th sean-niemann 🇺🇸 743 212 23 Jun 2025 171st jared-hughes 742 164 9 Apr 2022 172nd Natanaelel 🇸🇪 740 105 20 Feb 2024 173rd MeWhenI 🇻🇦 739 192 28 Feb 2024 174th dvargas46 🇺🇸 737 185 7 Apr 2023 175th MeWhenI 🇻🇦 736 239 22 Apr 2024 176th NewDefectus 🇮🇱 729 167 21 Sep 2021 177th SirBogman 🇺🇸 728 164 31 Jan 2024 178th primo-ppcg 🇹🇭 727 131 28 Sep 2021 179th emplv 🇱🇻 727 163 28 Mar 2025 180th CLOStrophobic 🇮🇹 726 283 3 Mar 2025 181st ovs-code 🇩🇪 725 153 10 Mar 2024 182nd prplz 🇦🇺 725 179 13 Jan 2024 183rd jared-hughes 721 180 9 Apr 2022 184th GrayJoKing 🇦🇺 720 156 2 Oct 2021 185th MeWhenI 🇻🇦 713 219 13 Aug 2024 186th Seek64 🇩🇪 710 183 17 Jun 2025 187th inventshah 709 178 12 Nov 2022 188th MeWhenI 🇻🇦 708 138 28 Feb 2024 189th SirBogman 🇺🇸 704 163 31 Jan 2024 190th MeWhenI 🇻🇦 701 220 28 Feb 2024 191st inventshah 697 155 12 Nov 2022 192nd jared-hughes 692 180 9 Apr 2022 193rd stefangimmillaro 691 229 12 May 2024 194th MeWhenI 🇻🇦 689 172 5 Jan 2025 195th MeWhenI 🇻🇦 689 176 28 Feb 2024 196th kg583 🇺🇸 687 189 31 Jan 2024 197th jacobly0 🇺🇸 687 256 22 Apr 2024 198th MeWhenI 🇻🇦 684 623 27 Jan 2025 199th inventshah 683 190 12 Nov 2022 199th stefangimmillaro 683 190 8 Aug 2023 199th lifthrasiir 🇰🇷 683 190 16 Nov 2024 202nd pardouin 🇫🇷 681 176 20 May 2025 203rd primo-ppcg 🇹🇭 679 201 24 Jan 2022 204th NewDefectus 🇮🇱 675 160 28 Dec 2021 205th inventshah 675 174 12 Nov 2022 206th stefangimmillaro 673 229 18 Oct 2023 207th KrausRaus 🇺🇸 669 182 30 Jun 2024 208th kg583 🇺🇸 667 179 17 Jul 2024 209th jared-hughes 666 143 10 Sep 2022 210th MeWhenI 🇻🇦 666 418 17 Nov 2021 211th tayloia 🇬🇧 665 183 4 May 2023 212th KasperKivimaeki 🇫🇮 663 163 2 days ago 213th MarcMush 🇫🇷 660 168 14 Jan 2024 214th duckyluuk 🇳🇱 659 197 23 Jun 2024 215th rucin93 🇵🇱 658 185 19 Jul 2024 216th lifthrasiir 🇰🇷 656 182 2 Dec 2024 217th nullie 656 198 14 Jun 2022 218th MeWhenI 🇻🇦 652 191 28 Feb 2024 219th stefangimmillaro 649 182 3 Oct 2023 220th stefangimmillaro 648 147 12 May 2024 221st emgordon154 648 241 29 Jun 2025 222nd MostParsingVex 646 459 16 Jan 2025 223rd duckyluuk 🇳🇱 645 185 23 Jun 2024 224th error256 645 329 29 Jul 2024 225th stefangimmillaro 644 227 3 Oct 2023 Prev 151–225 of 431 Next