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 Gray Code Decoder Gray Code Encoder 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 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 Gray Code Decoder Gray Code Encoder 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 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 MeWhenI 🇻🇦 738 181 23ms 28 Feb 2024 162nd nwellnhof 🇩🇪 737 106 9ms 22 May 2022 163rd SirBogman 🇺🇸 736 113 474ms 24 Jan 2024 163rd duckyluuk 🇳🇱 736 113 537ms 29 Aug 2024 165th SirBogman 🇺🇸 735 168 436ms 2 Jan 2022 166th rak1507 🇬🇧 734 87 2ms 31 Jan 2022 167th CLOStrophobic 🇮🇹 731 203 7ms 6 Mar 2025 168th emgordon154 730 123 17ms 12 Apr 2025 168th snoozingnewt 🇨🇦 730 123 20ms 9 days ago 170th MeWhenI 🇻🇦 729 157 1ms 28 Feb 2024 171st SirBogman 🇺🇸 728 145 2ms 24 Nov 2021 171st KasperKivimaeki 🇫🇮 728 145 863ms 14 Nov 2025 173rd MeWhenI 🇻🇦 727 202 2ms 28 Feb 2024 174th MeWhenI 🇻🇦 725 192 88ms 28 Feb 2024 175th neel11235813 724 124 22ms 5 Nov 2023 176th dvargas46 🇺🇸 722 185 24ms 7 Apr 2023 177th sean-niemann 🇺🇸 721 134 1,256ms 14 Aug 2025 178th SirBogman 🇺🇸 715 104 32ms 28 Nov 2023 179th jusaka 711 418 68ms 17 hours ago 180th vang1ong7ang 710 243 159ms 9 days ago 181st Natanaelel 🇸🇪 708 105 34ms 20 Feb 2024 182nd orthoplex 🇨🇽 707 127 18ms 26 Oct 2021 182nd ndren 707 127 27ms 22 Nov 2023 184th jusaka 704 245 169ms 7 days ago 185th MeWhenI 🇻🇦 704 272 1,880ms 28 hours ago 186th SirBogman 🇺🇸 703 99 42ms 31 Jan 2024 187th edsrzf 🇳🇿 703 218 335ms 16 Dec 2025 188th MeWhenI 🇻🇦 701 219 5ms 13 Aug 2024 189th snoozingnewt 🇨🇦 699 119 700ms 9 days ago 190th annaproxy 696 129 11ms 8 Jun 2022 191st MeWhenI 🇻🇦 696 220 333ms 28 Feb 2024 192nd dcgjb 694 125 855ms 30 Jan 2024 192nd nwellnhof 🇩🇪 694 125 281ms 18 Oct 2024 194th inventshah 694 178 458ms 12 Nov 2022 195th MeWhenI 🇻🇦 688 623 13ms 27 Jan 2025 196th emgordon154 687 121 399ms 12 Apr 2025 197th Artemis21 🇬🇧 685 131 17ms 10 Jan 2025 198th tatzyr 🇯🇵 682 102 36ms 11 Mar 2025 199th neel11235813 682 122 555ms 27 Mar 2024 200th inventshah 681 155 1ms 12 Nov 2022 201st MeWhenI 🇻🇦 680 132 11ms 22 Oct 2021 202nd snoozingnewt 🇨🇦 679 205 93ms 19 Oct 2025 203rd DialFrost 🇸🇬 675 118 608ms 2 Jan 2024 204th TFeld00 🇩🇰 675 133 17ms 19 May 2022 204th anter69 🇭🇺 675 133 19ms 7 Jul 2025 206th helbling 🇨🇭 674 145 10ms 6 Sep 2024 206th voytxt 🇨🇿 674 145 12ms 2 Jun 2025 208th albanian-laundromat 🇺🇸 673 147 1,332ms 25 Oct 2025 209th MeWhenI 🇻🇦 673 239 40ms 13 Feb 2025 210th Waffle3z 670 167 2ms 8 Apr 2022 211th pardouin 🇫🇷 670 176 2,432ms 20 May 2025 212th MeWhenI 🇻🇦 669 148 1,083ms 15 Sep 2025 213th stefangimmillaro 669 229 328ms 18 Oct 2023 214th weliveinhell 🇭🇹 665 147 14ms 21 Jan 2024 215th primo-ppcg 🇹🇭 665 201 14ms 24 Jan 2022 216th MeWhenI 🇻🇦 664 418 14ms 17 Nov 2021 217th saito-ta 🇯🇵 662 118 3ms 13 Feb 2023 218th MeWhenI 🇻🇦 662 176 1ms 28 Feb 2024 219th edsrzf 🇳🇿 662 243 39ms 17 Dec 2025 220th DialFrost 🇸🇬 660 136 19ms 23 Feb 2024 220th KatieLG 🇬🇧 660 136 10ms 14 Sep 2024 220th Flekay 🇩🇪 660 136 11ms 15 Feb 2026 220th jusaka 660 136 11ms 15 days ago 224th NewDefectus 🇮🇱 660 160 1ms 28 Dec 2021 225th inventshah 657 174 1ms 12 Nov 2022 226th dmrichwa 🇺🇸 656 149 9ms 28 Jan 2023 227th ovs-code 🇩🇪 650 128 486ms 6 Jul 2025 228th stefangimmillaro 649 202 451ms 6 Oct 2025 229th MostParsingVex 648 459 26ms 16 Jan 2025 230th edsrzf 🇳🇿 647 199 3ms 16 Nov 2025 231st albanian-laundromat 🇺🇸 647 227 3ms 6 Jul 2025 232nd MeWhenI 🇻🇦 643 152 10ms 28 Feb 2024 232nd JOrE20 643 152 10ms 23 Feb 2026 234th stefangimmillaro 641 181 404ms 6 Oct 2025 235th MeWhenI 🇻🇦 640 232 7ms 17 Dec 2025 236th emgordon154 637 241 6ms 29 Jun 2025 237th stefangimmillaro 637 255 135ms 24 Jul 2023 238th MeWhenI 🇻🇦 635 131 485ms 13 Jul 2024 239th MeWhenI 🇻🇦 635 170 133ms 21 days ago 240th stefangimmillaro 632 227 113ms 3 Oct 2023 First Prev 161–240 of 529 Next Last