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 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 Calendar 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 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 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 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 Calendar 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 151st SirBogman 🇺🇸 740 117 273ms 31 Jan 2024 152nd MeWhenI 🇻🇦 740 188 350ms 28 Feb 2024 153rd MeWhenI 🇻🇦 737 233 40ms 13 May 2023 154th nwellnhof 🇩🇪 736 106 9ms 22 May 2022 155th SirBogman 🇺🇸 735 113 358ms 24 Jan 2024 155th duckyluuk 🇳🇱 735 113 396ms 29 Aug 2024 157th CLOStrophobic 🇮🇹 735 203 8ms 6 Mar 2025 158th SirBogman 🇺🇸 734 168 408ms 2 Jan 2022 159th MeWhenI 🇻🇦 734 181 23ms 28 Feb 2024 160th rak1507 🇬🇧 733 87 2ms 31 Jan 2022 161st rucin93 🇵🇱 733 133 9ms 19 Jan 2025 162nd emgordon154 729 123 15ms 12 Apr 2025 163rd SirBogman 🇺🇸 727 99 35ms 31 Jan 2024 164th SirBogman 🇺🇸 726 145 2ms 24 Nov 2021 164th KasperKivimaeki 🇫🇮 726 145 885ms 14 Nov 2025 166th neel11235813 723 124 19ms 5 Nov 2023 167th MeWhenI 🇻🇦 723 157 1ms 28 Feb 2024 168th MeWhenI 🇻🇦 722 202 2ms 28 Feb 2024 169th MeWhenI 🇻🇦 720 239 1,735ms 22 Apr 2024 170th sean-niemann 🇺🇸 718 134 835ms 14 Aug 2025 171st dvargas46 🇺🇸 718 185 21ms 7 Apr 2023 172nd MeWhenI 🇻🇦 718 192 97ms 28 Feb 2024 173rd snoozingnewt 🇨🇦 717 125 15ms 10 days ago 174th SirBogman 🇺🇸 715 104 32ms 28 Nov 2023 175th Natanaelel 🇸🇪 708 105 34ms 20 Feb 2024 176th tatzyr 🇯🇵 706 102 32ms 11 Mar 2025 177th orthoplex 🇨🇽 706 127 16ms 26 Oct 2021 177th ndren 706 127 26ms 22 Nov 2023 179th edsrzf 🇳🇿 698 218 293ms 11 hours ago 180th annaproxy 695 129 10ms 8 Jun 2022 181st MeWhenI 🇻🇦 695 219 6ms 13 Aug 2024 182nd dcgjb 692 125 833ms 30 Jan 2024 182nd nwellnhof 🇩🇪 692 125 224ms 18 Oct 2024 184th inventshah 692 178 489ms 12 Nov 2022 185th MeWhenI 🇻🇦 692 220 264ms 28 Feb 2024 186th emgordon154 686 121 509ms 12 Apr 2025 186th snoozingnewt 🇨🇦 686 121 356ms 10 days ago 188th Artemis21 🇬🇧 685 131 16ms 10 Jan 2025 189th neel11235813 681 122 445ms 27 Mar 2024 190th MeWhenI 🇻🇦 679 132 10ms 22 Oct 2021 191st inventshah 679 155 1ms 12 Nov 2022 192nd MeWhenI 🇻🇦 677 623 13ms 27 Jan 2025 193rd DialFrost 🇸🇬 674 118 770ms 2 Jan 2024 194th TFeld00 🇩🇰 674 133 16ms 19 May 2022 194th anter69 🇭🇺 674 133 16ms 7 Jul 2025 196th helbling 🇨🇭 673 145 9ms 6 Sep 2024 196th voytxt 🇨🇿 673 145 9ms 2 Jun 2025 198th snoozingnewt 🇨🇦 673 205 91ms 19 Oct 2025 199th jacobly0 🇺🇸 672 256 1,867ms 22 Apr 2024 200th albanian-laundromat 669 147 847ms 25 Oct 2025 201st Waffle3z 666 167 2ms 8 Apr 2022 202nd MeWhenI 🇻🇦 666 239 41ms 13 Feb 2025 203rd MeWhenI 🇻🇦 665 148 717ms 15 Sep 2025 204th stefangimmillaro 664 229 257ms 18 Oct 2023 205th weliveinhell 🇭🇹 663 147 10ms 21 Jan 2024 206th Steffan153 🇫🇮 663 197 333ms 11 Aug 2024 207th saito-ta 🇯🇵 661 118 2ms 13 Feb 2023 208th primo-ppcg 🇹🇭 661 201 14ms 24 Jan 2022 209th DialFrost 🇸🇬 659 136 17ms 23 Feb 2024 209th KatieLG 🇬🇧 659 136 15ms 14 Sep 2024 211th MeWhenI 🇻🇦 659 176 1ms 28 Feb 2024 211th pardouin 🇫🇷 659 176 4,212ms 20 May 2025 213th NewDefectus 🇮🇱 658 160 2ms 28 Dec 2021 214th MeWhenI 🇻🇦 656 418 14ms 17 Nov 2021 215th dmrichwa 🇺🇸 655 149 9ms 28 Jan 2023 216th edsrzf 🇳🇿 655 243 68ms 6 hours ago 217th inventshah 652 174 1ms 12 Nov 2022 218th ovs-code 🇩🇪 649 128 432ms 6 Jul 2025 219th stefangimmillaro 647 202 437ms 6 Oct 2025 220th albanian-laundromat 643 227 4ms 6 Jul 2025 221st MeWhenI 🇻🇦 643 232 6ms 34 mins ago 222nd MeWhenI 🇻🇦 642 152 8ms 28 Feb 2024 223rd edsrzf 🇳🇿 641 199 3ms 16 Nov 2025 224th stefangimmillaro 639 181 354ms 6 Oct 2025 225th ovs-code 🇩🇪 637 113 32ms 6 Jul 2025 First Prev 151–225 of 459 Next Last