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 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 Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript 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 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 ArkScript 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 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 Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 161st rucin93 🇵🇱 734 133 10ms 19 Jan 2025 162nd SirBogman 🇺🇸 734 168 402ms 2 Jan 2022 163rd MeWhenI 🇻🇦 734 181 23ms 28 Feb 2024 164th rak1507 🇬🇧 733 87 2ms 31 Jan 2022 165th emgordon154 729 123 16ms 12 Apr 2025 166th CLOStrophobic 🇮🇹 727 203 8ms 6 Mar 2025 167th SirBogman 🇺🇸 726 145 2ms 24 Nov 2021 167th KasperKivimaeki 🇫🇮 726 145 881ms 14 Nov 2025 169th neel11235813 724 124 19ms 5 Nov 2023 170th MeWhenI 🇻🇦 723 157 1ms 28 Feb 2024 171st MeWhenI 🇻🇦 722 202 2ms 28 Feb 2024 172nd MeWhenI 🇻🇦 720 239 1,735ms 22 Apr 2024 173rd snoozingnewt 🇨🇦 718 125 17ms 6 Dec 2025 174th sean-niemann 🇺🇸 718 134 1,256ms 14 Aug 2025 175th dvargas46 🇺🇸 718 185 24ms 7 Apr 2023 176th MeWhenI 🇻🇦 718 192 88ms 28 Feb 2024 177th SirBogman 🇺🇸 715 104 32ms 28 Nov 2023 178th Natanaelel 🇸🇪 708 105 34ms 20 Feb 2024 179th orthoplex 🇨🇽 706 127 17ms 26 Oct 2021 179th ndren 706 127 25ms 22 Nov 2023 181st SirBogman 🇺🇸 702 99 45ms 31 Jan 2024 182nd edsrzf 🇳🇿 701 218 305ms 16 Dec 2025 183rd annaproxy 696 129 10ms 8 Jun 2022 184th MeWhenI 🇻🇦 695 219 5ms 13 Aug 2024 185th MeWhenI 🇻🇦 694 220 287ms 28 Feb 2024 186th dcgjb 692 125 885ms 30 Jan 2024 186th nwellnhof 🇩🇪 692 125 280ms 18 Oct 2024 188th inventshah 692 178 410ms 12 Nov 2022 189th emgordon154 686 121 489ms 12 Apr 2025 189th snoozingnewt 🇨🇦 686 121 405ms 6 Dec 2025 191st Artemis21 🇬🇧 685 131 17ms 10 Jan 2025 192nd tatzyr 🇯🇵 681 102 36ms 11 Mar 2025 193rd neel11235813 681 122 418ms 27 Mar 2024 194th MeWhenI 🇻🇦 680 132 10ms 22 Oct 2021 195th inventshah 679 155 1ms 12 Nov 2022 196th MeWhenI 🇻🇦 677 623 13ms 27 Jan 2025 197th TFeld00 🇩🇰 675 133 16ms 19 May 2022 197th anter69 🇭🇺 675 133 16ms 7 Jul 2025 199th DialFrost 🇸🇬 674 118 603ms 2 Jan 2024 200th helbling 🇨🇭 674 145 10ms 6 Sep 2024 200th voytxt 🇨🇿 674 145 9ms 2 Jun 2025 202nd snoozingnewt 🇨🇦 673 205 93ms 19 Oct 2025 203rd jacobly0 🇺🇸 672 256 1,867ms 22 Apr 2024 204th snoozingnewt 🇨🇦 670 227 126ms 19 days ago 205th albanian-laundromat 669 147 1,369ms 25 Oct 2025 206th stefangimmillaro 667 229 293ms 18 Oct 2023 207th Waffle3z 666 167 2ms 8 Apr 2022 208th MeWhenI 🇻🇦 666 239 40ms 13 Feb 2025 209th MeWhenI 🇻🇦 665 148 1,074ms 15 Sep 2025 210th weliveinhell 🇭🇹 664 147 15ms 21 Jan 2024 211th pardouin 🇫🇷 663 176 2,824ms 20 May 2025 212th saito-ta 🇯🇵 661 118 3ms 13 Feb 2023 213th primo-ppcg 🇹🇭 661 201 14ms 24 Jan 2022 214th DialFrost 🇸🇬 660 136 17ms 23 Feb 2024 214th KatieLG 🇬🇧 660 136 10ms 14 Sep 2024 214th Flekay 🇩🇪 660 136 11ms 15 Feb 2026 217th MeWhenI 🇻🇦 659 176 1ms 28 Feb 2024 218th NewDefectus 🇮🇱 658 160 2ms 28 Dec 2021 219th MeWhenI 🇻🇦 656 418 14ms 17 Nov 2021 220th dmrichwa 🇺🇸 655 149 9ms 28 Jan 2023 221st edsrzf 🇳🇿 655 243 39ms 17 Dec 2025 222nd inventshah 652 174 1ms 12 Nov 2022 223rd ovs-code 🇩🇪 649 128 464ms 6 Jul 2025 224th stefangimmillaro 648 202 451ms 6 Oct 2025 225th albanian-laundromat 643 227 3ms 6 Jul 2025 226th MeWhenI 🇻🇦 642 152 9ms 28 Feb 2024 226th JOrE20 642 152 44ms 24 days ago 228th edsrzf 🇳🇿 641 199 3ms 16 Nov 2025 229th stefangimmillaro 640 181 384ms 6 Oct 2025 230th MostParsingVex 637 459 26ms 16 Jan 2025 231st MeWhenI 🇻🇦 636 232 5ms 17 Dec 2025 232nd MeWhenI 🇻🇦 634 131 427ms 13 Jul 2024 233rd stefangimmillaro 632 255 172ms 24 Jul 2023 234th emgordon154 631 241 6ms 29 Jun 2025 235th stefangimmillaro 628 227 113ms 3 Oct 2023 236th stefangimmillaro 628 273 160ms 17 Nov 2023 237th ovs-code 🇩🇪 627 143 10ms 6 Jul 2025 238th lynn 627 249 1,351ms 25 Oct 2021 239th jared-hughes 618 180 1ms 9 Apr 2022 240th AdrienHache 🇫🇷 617 188 398ms 25 Jul 2025 First Prev 161–240 of 472 Next Last