QR Decoder in all languages in chars. 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 Chars Time Submitted 161st emgordon154 729 123 15ms 12 Apr 2025 162nd SirBogman 🇺🇸 728 99 40ms 31 Jan 2024 163rd SirBogman 🇺🇸 726 145 2ms 24 Nov 2021 163rd KasperKivimaeki 🇫🇮 726 145 885ms 14 Nov 2025 165th neel11235813 723 124 19ms 5 Nov 2023 166th MeWhenI 🇻🇦 723 157 1ms 28 Feb 2024 167th MeWhenI 🇻🇦 722 202 2ms 28 Feb 2024 168th MeWhenI 🇻🇦 720 239 1,735ms 22 Apr 2024 169th sean-niemann 🇺🇸 718 134 1,256ms 14 Aug 2025 170th dvargas46 🇺🇸 718 185 24ms 7 Apr 2023 171st MeWhenI 🇻🇦 718 192 97ms 28 Feb 2024 172nd snoozingnewt 🇨🇦 717 125 15ms 6 Dec 2025 173rd SirBogman 🇺🇸 715 104 32ms 28 Nov 2023 174th Natanaelel 🇸🇪 708 105 34ms 20 Feb 2024 175th tatzyr 🇯🇵 707 102 36ms 11 Mar 2025 176th orthoplex 🇨🇽 706 127 16ms 26 Oct 2021 176th ndren 706 127 26ms 22 Nov 2023 178th edsrzf 🇳🇿 698 218 250ms 16 Dec 2025 179th annaproxy 695 129 10ms 8 Jun 2022 180th MeWhenI 🇻🇦 695 219 6ms 13 Aug 2024 181st dcgjb 692 125 848ms 30 Jan 2024 181st nwellnhof 🇩🇪 692 125 278ms 18 Oct 2024 183rd inventshah 692 178 420ms 12 Nov 2022 184th MeWhenI 🇻🇦 692 220 237ms 28 Feb 2024 185th emgordon154 686 121 439ms 12 Apr 2025 185th snoozingnewt 🇨🇦 686 121 433ms 6 Dec 2025 187th Artemis21 🇬🇧 685 131 16ms 10 Jan 2025 188th neel11235813 681 122 421ms 27 Mar 2024 189th MeWhenI 🇻🇦 679 132 10ms 22 Oct 2021 190th inventshah 679 155 1ms 12 Nov 2022 191st MeWhenI 🇻🇦 677 623 13ms 27 Jan 2025 192nd DialFrost 🇸🇬 674 118 618ms 2 Jan 2024 193rd TFeld00 🇩🇰 674 133 16ms 19 May 2022 193rd anter69 🇭🇺 674 133 16ms 7 Jul 2025 195th helbling 🇨🇭 674 145 9ms 6 Sep 2024 195th voytxt 🇨🇿 674 145 9ms 2 Jun 2025 197th snoozingnewt 🇨🇦 673 205 91ms 19 Oct 2025 198th jacobly0 🇺🇸 672 256 1,867ms 22 Apr 2024 199th albanian-laundromat 669 147 847ms 25 Oct 2025 200th Waffle3z 666 167 2ms 8 Apr 2022 201st MeWhenI 🇻🇦 666 239 40ms 13 Feb 2025 202nd MeWhenI 🇻🇦 665 148 717ms 15 Sep 2025 203rd weliveinhell 🇭🇹 664 147 10ms 21 Jan 2024 204th Steffan153 🇫🇮 664 197 333ms 11 Aug 2024 205th stefangimmillaro 664 229 241ms 18 Oct 2023 206th saito-ta 🇯🇵 661 118 2ms 13 Feb 2023 207th primo-ppcg 🇹🇭 661 201 14ms 24 Jan 2022 208th DialFrost 🇸🇬 659 136 17ms 23 Feb 2024 208th KatieLG 🇬🇧 659 136 10ms 14 Sep 2024 210th MeWhenI 🇻🇦 659 176 1ms 28 Feb 2024 210th pardouin 🇫🇷 659 176 2,408ms 20 May 2025 212th NewDefectus 🇮🇱 658 160 2ms 28 Dec 2021 213th MeWhenI 🇻🇦 656 418 14ms 17 Nov 2021 214th dmrichwa 🇺🇸 655 149 9ms 28 Jan 2023 215th edsrzf 🇳🇿 655 243 53ms 17 Dec 2025 216th inventshah 652 174 1ms 12 Nov 2022 217th ovs-code 🇩🇪 649 128 429ms 6 Jul 2025 218th stefangimmillaro 648 202 437ms 6 Oct 2025 219th albanian-laundromat 643 227 4ms 6 Jul 2025 220th MeWhenI 🇻🇦 642 152 9ms 28 Feb 2024 221st edsrzf 🇳🇿 641 199 3ms 16 Nov 2025 222nd stefangimmillaro 640 181 415ms 6 Oct 2025 223rd MeWhenI 🇻🇦 639 232 5ms 17 Dec 2025 224th ovs-code 🇩🇪 638 113 37ms 6 Jul 2025 225th MostParsingVex 637 459 26ms 16 Jan 2025 226th MeWhenI 🇻🇦 634 131 418ms 13 Jul 2024 227th stefangimmillaro 632 255 160ms 24 Jul 2023 228th emgordon154 631 241 6ms 29 Jun 2025 229th stefangimmillaro 628 227 109ms 3 Oct 2023 230th stefangimmillaro 628 273 151ms 17 Nov 2023 231st ovs-code 🇩🇪 627 143 10ms 6 Jul 2025 232nd lynn 627 249 1,444ms 25 Oct 2021 233rd jared-hughes 618 180 1ms 9 Apr 2022 234th error256 618 223 8ms 29 Jul 2024 235th AdrienHache 🇫🇷 617 188 438ms 25 Jul 2025 236th MeWhenI 🇻🇦 612 188 4ms 28 Feb 2024 237th KatieLG 🇬🇧 611 136 372ms 28 Oct 2024 238th dokutan 610 147 16ms 10 Sep 2025 239th snoozingnewt 🇨🇦 608 250 108ms 7 Dec 2025 240th JOrE20 🇺🇸 607 161 10ms 24 Dec 2025 First Prev 161–240 of 465 Next Last