QR Decoder in all languages in bytes. 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 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 Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 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 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 ><> ALGOL 68 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 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 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 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 Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 161st Yax42 🇫🇷 773 173 429ms 17 Dec 2025 162nd edsrzf 🇳🇿 773 210 4ms 16 Dec 2025 163rd ovs-code 🇩🇪 772 140 1ms 10 Jul 2024 164th GolfingSuccess 🇬🇷 772 155 482ms 5 Aug 2025 165th rak1507 🇬🇧 770 87 2ms 31 Jan 2022 166th Steffan153 🇫🇮 769 124 37ms 31 Jul 2024 167th ovs-code 🇩🇪 769 164 445ms 10 Jul 2024 168th MeWhenI 🇻🇦 765 165 443ms 28 Feb 2024 169th Seek64 🇩🇪 765 170 10ms 27 Nov 2025 170th rotary-o 🇯🇵 764 175 404ms 8 May 2023 171st acotis 762 229 174ms 31 May 2025 172nd MeWhenI 🇻🇦 761 188 387ms 28 Feb 2024 173rd edsrzf 🇳🇿 760 171 24ms 16 Dec 2025 174th lynn 757 158 477ms 17 Feb 2024 174th AlephSquirrel 757 158 495ms 12 Jan 2025 174th kg583 🇺🇸 757 158 457ms 15 hours ago 177th MeWhenI 🇻🇦 757 256 64ms 28 Feb 2024 178th SirBogman 🇺🇸 756 172 15ms 31 Jan 2024 179th MeWhenI 🇻🇦 755 233 40ms 13 May 2023 180th MeWhenI 🇻🇦 754 181 23ms 28 Feb 2024 181st Irratix 🇳🇱 752 173 21ms 6 May 2022 182nd SirBogman 🇺🇸 751 168 441ms 2 Jan 2022 183rd SirBogman 🇺🇸 749 150 120ms 31 Jan 2024 184th MeWhenI 🇻🇦 748 157 1ms 28 Feb 2024 185th SirBogman 🇺🇸 747 104 32ms 28 Nov 2023 186th SirBogman 🇺🇸 745 145 2ms 24 Nov 2021 186th KasperKivimaeki 🇫🇮 745 145 881ms 14 Nov 2025 188th sean-niemann 🇺🇸 744 134 1,256ms 14 Aug 2025 189th MeWhenI 🇻🇦 744 149 381ms 28 Feb 2024 190th jared-hughes 744 164 9ms 9 Apr 2022 191st sean-niemann 🇺🇸 743 212 2ms 23 Jun 2025 192nd Natanaelel 🇸🇪 740 105 34ms 20 Feb 2024 193rd MeWhenI 🇻🇦 739 192 94ms 28 Feb 2024 194th dvargas46 🇺🇸 737 185 24ms 7 Apr 2023 195th MeWhenI 🇻🇦 736 239 1,735ms 22 Apr 2024 196th NewDefectus 🇮🇱 730 167 10ms 21 Sep 2021 197th emplv 🇱🇻 729 163 143ms 28 Mar 2025 198th SirBogman 🇺🇸 729 164 467ms 31 Jan 2024 199th primo-ppcg 🇹🇭 728 131 34ms 28 Sep 2021 200th prplz 🇦🇺 726 179 10ms 13 Jan 2024 201st ovs-code 🇩🇪 725 153 818ms 10 Mar 2024 202nd jared-hughes 722 180 16ms 9 Apr 2022 202nd kg583 🇺🇸 722 180 16ms 14 hours ago 204th GrayJoKing 🇦🇺 720 156 125ms 2 Oct 2021 205th snoozingnewt 🇨🇦 716 228 102ms 7 hours ago 206th edsrzf 🇳🇿 715 218 289ms 16 Dec 2025 207th MeWhenI 🇻🇦 713 219 5ms 13 Aug 2024 208th MeWhenI 🇻🇦 709 138 3ms 28 Feb 2024 209th inventshah 709 178 427ms 12 Nov 2022 210th MeWhenI 🇻🇦 708 220 281ms 28 Feb 2024 211th SirBogman 🇺🇸 704 163 262ms 31 Jan 2024 212th plcc0 699 186 17ms 8 days ago 213th inventshah 697 155 1ms 12 Nov 2022 214th CLOStrophobic 🇮🇹 694 283 6ms 3 Mar 2025 215th jared-hughes 692 180 1ms 9 Apr 2022 216th MeWhenI 🇻🇦 691 172 135ms 5 Jan 2025 217th jacobly0 🇺🇸 687 256 1,867ms 22 Apr 2024 218th inventshah 684 190 17ms 12 Nov 2022 218th stefangimmillaro 684 190 24ms 8 Aug 2023 218th lifthrasiir 🇰🇷 684 190 17ms 16 Nov 2024 221st MeWhenI 🇻🇦 684 623 13ms 27 Jan 2025 222nd pardouin 🇫🇷 681 176 2,247ms 20 May 2025 223rd stefangimmillaro 680 229 280ms 18 Oct 2023 224th MeWhenI 🇻🇦 679 176 1ms 28 Feb 2024 225th primo-ppcg 🇹🇭 679 201 14ms 24 Jan 2022 226th NewDefectus 🇮🇱 675 160 2ms 28 Dec 2021 227th inventshah 675 174 1ms 12 Nov 2022 228th KrausRaus 🇺🇸 670 182 9ms 30 Jun 2024 228th Lv0Sys 🇵🇱 670 182 9ms 14 hours ago 230th jared-hughes 667 143 33ms 10 Sep 2022 231st tayloia 🇬🇧 667 183 9ms 4 May 2023 232nd MeWhenI 🇻🇦 666 418 15ms 17 Nov 2021 233rd stefangimmillaro 662 202 451ms 6 Oct 2025 234th MarcMush 🇫🇷 660 168 614ms 14 Jan 2024 235th duckyluuk 🇳🇱 660 197 18ms 23 Jun 2024 236th rucin93 🇵🇱 659 185 10ms 19 Jul 2024 237th lifthrasiir 🇰🇷 657 182 431ms 2 Dec 2024 238th nullie 657 198 10ms 14 Jun 2022 238th emgordon154 657 198 9ms 16 Oct 2025 240th stefangimmillaro 655 181 415ms 6 Oct 2025 First Prev 161–240 of 472 Next Last