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 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 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 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 Lily 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 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 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 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 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 rak1507 🇬🇧 733 87 2ms 31 Jan 2022 162nd CLOStrophobic 🇮🇹 731 203 8ms 6 Mar 2025 163rd emgordon154 729 123 16ms 12 Apr 2025 164th SirBogman 🇺🇸 728 99 40ms 31 Jan 2024 165th SirBogman 🇺🇸 726 145 2ms 24 Nov 2021 165th KasperKivimaeki 🇫🇮 726 145 881ms 14 Nov 2025 167th neel11235813 723 124 19ms 5 Nov 2023 168th MeWhenI 🇻🇦 723 157 1ms 28 Feb 2024 169th MeWhenI 🇻🇦 722 202 2ms 28 Feb 2024 170th MeWhenI 🇻🇦 720 239 1,735ms 22 Apr 2024 171st snoozingnewt 🇨🇦 718 125 17ms 6 Dec 2025 172nd sean-niemann 🇺🇸 718 134 1,256ms 14 Aug 2025 173rd dvargas46 🇺🇸 718 185 24ms 7 Apr 2023 174th MeWhenI 🇻🇦 718 192 94ms 28 Feb 2024 175th SirBogman 🇺🇸 715 104 32ms 28 Nov 2023 176th Natanaelel 🇸🇪 708 105 34ms 20 Feb 2024 177th tatzyr 🇯🇵 707 102 36ms 11 Mar 2025 178th orthoplex 🇨🇽 706 127 17ms 26 Oct 2021 178th ndren 706 127 25ms 22 Nov 2023 180th edsrzf 🇳🇿 698 218 289ms 16 Dec 2025 181st annaproxy 695 129 10ms 8 Jun 2022 182nd MeWhenI 🇻🇦 695 219 5ms 13 Aug 2024 183rd dcgjb 692 125 848ms 30 Jan 2024 183rd nwellnhof 🇩🇪 692 125 276ms 18 Oct 2024 185th inventshah 692 178 396ms 12 Nov 2022 186th MeWhenI 🇻🇦 692 220 281ms 28 Feb 2024 187th emgordon154 686 121 489ms 12 Apr 2025 187th snoozingnewt 🇨🇦 686 121 405ms 6 Dec 2025 189th Artemis21 🇬🇧 685 131 17ms 10 Jan 2025 190th neel11235813 681 122 418ms 27 Mar 2024 191st MeWhenI 🇻🇦 680 132 10ms 22 Oct 2021 192nd inventshah 679 155 1ms 12 Nov 2022 193rd MeWhenI 🇻🇦 677 623 13ms 27 Jan 2025 194th TFeld00 🇩🇰 675 133 16ms 19 May 2022 194th anter69 🇭🇺 675 133 16ms 7 Jul 2025 196th DialFrost 🇸🇬 674 118 603ms 2 Jan 2024 197th helbling 🇨🇭 674 145 11ms 6 Sep 2024 197th voytxt 🇨🇿 674 145 10ms 2 Jun 2025 199th snoozingnewt 🇨🇦 673 205 91ms 19 Oct 2025 200th jacobly0 🇺🇸 672 256 1,867ms 22 Apr 2024 201st albanian-laundromat 669 147 1,369ms 25 Oct 2025 202nd Waffle3z 666 167 2ms 8 Apr 2022 203rd MeWhenI 🇻🇦 666 239 40ms 13 Feb 2025 204th MeWhenI 🇻🇦 665 148 1,074ms 15 Sep 2025 205th weliveinhell 🇭🇹 664 147 11ms 21 Jan 2024 206th stefangimmillaro 664 229 280ms 18 Oct 2023 207th saito-ta 🇯🇵 661 118 2ms 13 Feb 2023 208th primo-ppcg 🇹🇭 661 201 14ms 24 Jan 2022 209th DialFrost 🇸🇬 660 136 17ms 23 Feb 2024 209th KatieLG 🇬🇧 660 136 11ms 14 Sep 2024 209th Flekay 🇩🇪 660 136 11ms 5 days ago 212th MeWhenI 🇻🇦 659 176 1ms 28 Feb 2024 212th pardouin 🇫🇷 659 176 2,247ms 20 May 2025 214th NewDefectus 🇮🇱 658 160 2ms 28 Dec 2021 215th MeWhenI 🇻🇦 656 418 15ms 17 Nov 2021 216th dmrichwa 🇺🇸 655 149 10ms 28 Jan 2023 217th edsrzf 🇳🇿 655 243 39ms 17 Dec 2025 218th inventshah 652 174 1ms 12 Nov 2022 219th ovs-code 🇩🇪 649 128 464ms 6 Jul 2025 220th stefangimmillaro 648 202 451ms 6 Oct 2025 221st albanian-laundromat 643 227 3ms 6 Jul 2025 222nd MeWhenI 🇻🇦 642 152 9ms 28 Feb 2024 223rd edsrzf 🇳🇿 641 199 3ms 16 Nov 2025 224th stefangimmillaro 640 181 415ms 6 Oct 2025 225th MeWhenI 🇻🇦 639 232 5ms 17 Dec 2025 226th ovs-code 🇩🇪 638 113 37ms 6 Jul 2025 227th MostParsingVex 637 459 26ms 16 Jan 2025 228th MeWhenI 🇻🇦 634 131 427ms 13 Jul 2024 229th JOrE20 634 154 9ms 31 hours ago 230th stefangimmillaro 632 255 160ms 24 Jul 2023 231st emgordon154 631 241 6ms 29 Jun 2025 232nd stefangimmillaro 628 227 109ms 3 Oct 2023 233rd stefangimmillaro 628 273 160ms 17 Nov 2023 234th ovs-code 🇩🇪 627 143 10ms 6 Jul 2025 235th lynn 627 249 1,444ms 25 Oct 2021 236th jared-hughes 618 180 1ms 9 Apr 2022 237th error256 618 223 7ms 29 Jul 2024 238th AdrienHache 🇫🇷 617 188 438ms 25 Jul 2025 239th MeWhenI 🇻🇦 612 188 4ms 28 Feb 2024 240th KatieLG 🇬🇧 611 136 412ms 28 Oct 2024 First Prev 161–240 of 468 Next Last