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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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers Huffman Encoder NFA Simulator Nim 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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers Huffman Encoder NFA Simulator Nim 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 101st Steffan153 🇫🇮 825 153 63ms 11 Aug 2024 102nd nwellnhof 🇩🇪 825 391 56ms 9 Jul 2022 103rd Steffan153 🇫🇮 824 154 444ms 11 Aug 2024 104th kg583 🇺🇸 824 246 42ms 17 Dec 2025 105th MeWhenI 🇻🇦 818 145 406ms 19 Jun 2025 106th MeWhenI 🇻🇦 816 146 5ms 28 Feb 2024 107th edsrzf 🇳🇿 816 185 124ms 14 days ago 108th MeWhenI 🇻🇦 815 148 776ms 15 Sep 2025 109th MeWhenI 🇻🇦 815 364 25ms 30 Sep 2021 110th emplv 🇱🇻 814 150 10ms 29 Apr 2022 111th MeWhenI 🇻🇦 814 251 6ms 28 Feb 2024 112th Steffan153 🇫🇮 813 160 18ms 31 Jul 2024 112th Lv0Sys 🇵🇱 813 160 11ms 28 Feb 2026 114th UnderKoen 🇳🇱 812 608 4ms 11 Nov 2024 115th MeWhenI 🇻🇦 810 165 536ms 7 Nov 2025 116th kg583 🇺🇸 809 285 84ms 3 days ago 117th Steffan153 🇫🇮 808 147 138ms 11 Feb 2026 118th Steffan153 🇫🇮 808 148 598ms 31 Jul 2024 119th MeWhenI 🇻🇦 808 204 147ms 28 Feb 2024 120th MeWhenI 🇻🇦 808 290 31ms 6 Jun 2023 121st jared-hughes 807 134 2ms 30 Jan 2023 122nd nwellnhof 🇩🇪 807 193 345ms 24 Sep 2021 123rd vang1ong7ang 🇦🇶 807 217 160ms 35 hours ago 124th MeWhenI 🇻🇦 804 99 43ms 28 Feb 2024 125th sean-niemann 🇺🇸 803 148 147ms 29 Oct 2024 126th Irratix 🇳🇱 803 152 10ms 6 May 2022 126th MeWhenI 🇻🇦 803 152 12ms 28 Feb 2024 126th vlpx 🇫🇮 803 152 10ms 1 Aug 2024 129th annaproxy 802 347 118ms 18 Sep 2023 130th primo-ppcg 🇹🇭 802 531 10ms 20 Jun 2025 131st sean-niemann 🇺🇸 801 148 418ms 11 Aug 2024 131st Steffan153 🇫🇮 801 148 431ms 11 Aug 2024 133rd jared-hughes 799 158 65ms 30 Jan 2023 134th lifthrasiir 🇰🇷 798 84 2ms 6 Dec 2024 135th ryyyn 🇺🇸 798 163 19ms 9 Dec 2025 136th namelessiw 796 168 532ms 15 Nov 2025 136th Steffan153 🇫🇮 796 168 529ms 11 Feb 2026 138th stefangimmillaro 796 221 40ms 31 Jul 2023 139th GolfingSuccess 🇬🇷 793 164 18ms 18 Sep 2021 139th 5cw 🇺🇸 793 164 10ms 8 May 2024 141st MeWhenI 🇻🇦 792 223 3ms 28 Feb 2024 142nd emgordon154 792 398 1,208ms 4 Oct 2025 143rd pardouin 🇫🇷 791 126 1,486ms 14 Aug 2025 144th namelessiw 791 150 436ms 11 Aug 2024 145th sean-niemann 🇺🇸 791 169 569ms 24 Sep 2025 146th lynn 790 241 121ms 3 Feb 2023 147th Natanaelel 🇸🇪 788 85 2ms 12 Jan 2025 148th sean-niemann 🇺🇸 788 165 17ms 9 Mar 2025 149th snoozingnewt 🇨🇦 788 180 80ms 8 days ago 150th MeWhenI 🇻🇦 787 152 491ms 24 May 2024 151st MeWhenI 🇻🇦 784 138 1ms 5 Jul 2024 152nd AlephSquirrel 784 166 13ms 10 Jun 2023 152nd bricknellj 784 166 18ms 3 Apr 2025 154th pardouin 🇫🇷 782 122 37ms 22 Aug 2025 155th sean-niemann 🇺🇸 782 153 507ms 9 Mar 2025 156th MeWhenI 🇻🇦 782 187 121ms 28 Feb 2024 157th AlephSquirrel 782 247 6ms 27 Jan 2025 158th MeWhenI 🇻🇦 781 147 285ms 28 Feb 2024 159th Yax42 🇫🇷 780 152 395ms 24 Nov 2025 160th MeWhenI 🇻🇦 780 202 2ms 28 Feb 2024 161st MeWhenI 🇻🇦 779 128 1,366ms 14 Nov 2022 162nd emplv 🇱🇻 779 153 5ms 10 Jan 2023 163rd lynn 779 167 10ms 13 Feb 2023 164th adyache 🇺🇸 779 216 61ms 28 Aug 2023 165th MeWhenI 🇻🇦 779 223 3ms 20 Jul 2023 166th hallvabo 🇳🇴 774 168 29ms 8 Feb 2022 167th Yax42 🇫🇷 773 173 756ms 17 Dec 2025 168th edsrzf 🇳🇿 773 210 4ms 16 Dec 2025 169th ovs-code 🇩🇪 772 140 1ms 10 Jul 2024 170th GolfingSuccess 🇬🇷 772 155 552ms 5 Aug 2025 171st rak1507 🇬🇧 770 87 2ms 31 Jan 2022 172nd Steffan153 🇫🇮 769 124 38ms 31 Jul 2024 173rd ovs-code 🇩🇪 769 164 440ms 10 Jul 2024 174th MeWhenI 🇻🇦 769 188 390ms 28 Feb 2024 175th scpchicken 🇵🇼 767 248 119ms 15 days ago 176th MeWhenI 🇻🇦 765 165 441ms 28 Feb 2024 177th Seek64 🇩🇪 765 170 13ms 27 Nov 2025 178th rotary-o 🇯🇵 764 175 405ms 8 May 2023 179th acotis 764 229 183ms 31 May 2025 180th edsrzf 🇳🇿 761 171 27ms 16 Dec 2025 181st lynn 757 158 524ms 17 Feb 2024 181st AlephSquirrel 757 158 454ms 12 Jan 2025 181st kg583 🇺🇸 757 158 604ms 28 Feb 2026 184th MeWhenI 🇻🇦 757 256 64ms 28 Feb 2024 185th SirBogman 🇺🇸 756 172 17ms 31 Jan 2024 186th MeWhenI 🇻🇦 755 233 40ms 13 May 2023 187th MeWhenI 🇻🇦 754 181 23ms 28 Feb 2024 188th Irratix 🇳🇱 752 173 20ms 6 May 2022 189th SirBogman 🇺🇸 751 168 426ms 2 Jan 2022 190th SirBogman 🇺🇸 749 150 143ms 31 Jan 2024 191st SirBogman 🇺🇸 748 104 32ms 28 Nov 2023 192nd MeWhenI 🇻🇦 748 157 1ms 28 Feb 2024 193rd SirBogman 🇺🇸 746 145 2ms 24 Nov 2021 193rd KasperKivimaeki 🇫🇮 746 145 863ms 14 Nov 2025 195th sean-niemann 🇺🇸 744 134 1,556ms 14 Aug 2025 196th MeWhenI 🇻🇦 744 149 412ms 28 Feb 2024 197th jared-hughes 744 164 9ms 9 Apr 2022 198th sean-niemann 🇺🇸 743 212 2ms 23 Jun 2025 199th Natanaelel 🇸🇪 741 105 34ms 20 Feb 2024 200th rucin93 🇵🇱 740 165 10ms 11 days ago First Prev 101–200 of 485 Next Last