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 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 Bytes Time Submitted 81st sean-niemann 🇺🇸 844 151 434ms 11 Aug 2024 82nd Shanethegamer 🇺🇸 844 254 111ms 2 Apr 2025 83rd pardouin 🇫🇷 843 142 506ms 25 Jun 2024 84th edsrzf 🇳🇿 842 243 39ms 17 Dec 2025 85th IanUtley 840 335 22ms 20 Dec 2022 86th Steffan153 🇫🇮 839 129 1ms 11 Aug 2024 87th error256 839 231 824ms 29 Jul 2024 88th MeWhenI 🇻🇦 838 232 7ms 17 Dec 2025 89th Steffan153 🇫🇮 835 176 111ms 11 Aug 2024 90th MeWhenI 🇻🇦 834 156 10ms 30 Jul 2024 91st edsrzf 🇳🇿 834 185 124ms 2 days ago 92nd sean-niemann 🇺🇸 833 130 1ms 11 Aug 2024 93rd canissimia 🇦🇶 833 316 16ms 2 May 2022 94th sean-niemann 🇺🇸 832 152 482ms 17 Jul 2025 95th kg583 🇺🇸 832 246 42ms 17 Dec 2025 96th saito-ta 🇯🇵 830 118 3ms 13 Feb 2023 97th lynn 829 96 43ms 3 Apr 2023 98th blaztoma 🇱🇹 829 157 16ms 28 Dec 2025 99th MeWhenI 🇻🇦 828 216 14ms 7 Jan 2025 100th MeWhenI 🇻🇦 828 277 4ms 17 Oct 2021 101st MeWhenI 🇻🇦 828 364 25ms 30 Sep 2021 102nd Steffan153 🇫🇮 827 154 444ms 11 Aug 2024 103rd kg583 🇺🇸 827 286 85ms 18 days ago 104th Steffan153 🇫🇮 826 153 66ms 11 Aug 2024 105th MeWhenI 🇻🇦 826 290 31ms 6 Jun 2023 106th nwellnhof 🇩🇪 825 391 56ms 9 Jul 2022 107th MeWhenI 🇻🇦 822 251 6ms 28 Feb 2024 108th UnderKoen 🇳🇱 822 608 4ms 11 Nov 2024 109th MeWhenI 🇻🇦 819 145 418ms 19 Jun 2025 110th MeWhenI 🇻🇦 819 148 1,083ms 15 Sep 2025 111th MeWhenI 🇻🇦 818 146 5ms 28 Feb 2024 112th primo-ppcg 🇹🇭 815 531 10ms 20 Jun 2025 113th emplv 🇱🇻 814 150 10ms 29 Apr 2022 114th Steffan153 🇫🇮 813 160 18ms 31 Jul 2024 114th Lv0Sys 🇵🇱 813 160 11ms 28 Feb 2026 116th MeWhenI 🇻🇦 813 204 141ms 28 Feb 2024 117th Steffan153 🇫🇮 811 147 154ms 11 Feb 2026 118th MeWhenI 🇻🇦 811 165 471ms 7 Nov 2025 119th annaproxy 811 347 118ms 18 Sep 2023 120th Steffan153 🇫🇮 809 148 598ms 31 Jul 2024 121st nwellnhof 🇩🇪 809 193 345ms 24 Sep 2021 122nd jared-hughes 808 134 2ms 30 Jan 2023 123rd sean-niemann 🇺🇸 805 148 167ms 29 Oct 2024 124th MeWhenI 🇻🇦 804 99 41ms 28 Feb 2024 125th Irratix 🇳🇱 803 152 11ms 6 May 2022 125th MeWhenI 🇻🇦 803 152 10ms 28 Feb 2024 125th vlpx 🇫🇮 803 152 11ms 1 Aug 2024 128th stefangimmillaro 803 221 40ms 31 Jul 2023 129th sean-niemann 🇺🇸 802 148 457ms 11 Aug 2024 129th Steffan153 🇫🇮 802 148 446ms 11 Aug 2024 131st jared-hughes 800 158 61ms 30 Jan 2023 132nd MeWhenI 🇻🇦 799 223 3ms 28 Feb 2024 133rd lifthrasiir 🇰🇷 798 84 2ms 6 Dec 2024 134th ryyyn 🇺🇸 798 163 19ms 9 Dec 2025 135th namelessiw 797 168 447ms 15 Nov 2025 135th Steffan153 🇫🇮 797 168 346ms 11 Feb 2026 137th lynn 794 241 121ms 3 Feb 2023 138th pardouin 🇫🇷 793 126 1,305ms 14 Aug 2025 139th GolfingSuccess 🇬🇷 793 164 18ms 18 Sep 2021 139th 5cw 🇺🇸 793 164 10ms 8 May 2024 141st sean-niemann 🇺🇸 792 169 443ms 24 Sep 2025 142nd emgordon154 792 398 1,425ms 4 Oct 2025 143rd namelessiw 791 150 440ms 11 Aug 2024 144th Natanaelel 🇸🇪 788 85 2ms 12 Jan 2025 145th MeWhenI 🇻🇦 788 152 491ms 24 May 2024 146th sean-niemann 🇺🇸 788 165 17ms 9 Mar 2025 147th AlephSquirrel 787 247 6ms 27 Jan 2025 148th MeWhenI 🇻🇦 786 187 111ms 28 Feb 2024 149th MeWhenI 🇻🇦 785 138 1ms 5 Jul 2024 150th AlephSquirrel 784 166 13ms 10 Jun 2023 150th bricknellj 784 166 18ms 3 Apr 2025 152nd MeWhenI 🇻🇦 784 202 2ms 28 Feb 2024 153rd sean-niemann 🇺🇸 783 153 507ms 9 Mar 2025 154th pardouin 🇫🇷 782 122 38ms 22 Aug 2025 155th MeWhenI 🇻🇦 782 147 281ms 28 Feb 2024 156th MeWhenI 🇻🇦 781 128 1,266ms 14 Nov 2022 157th Yax42 🇫🇷 781 152 435ms 24 Nov 2025 158th emplv 🇱🇻 781 153 5ms 10 Jan 2023 159th edsrzf 🇳🇿 780 210 4ms 16 Dec 2025 160th lynn 779 167 10ms 13 Feb 2023 First Prev 81–160 of 532 Next Last