QR Decoder in all languages in bytes. Cheevos Holes Recent Holes Langs Medals Misc 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 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 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 Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir 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 Erlang 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 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 Erlang 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 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 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 Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Bytes Time 151st ovs-code 🇩🇪 769 164 10 Jul 2024 152nd Steffan153 🇫🇮 768 124 31 Jul 2024 153rd MeWhenI 🇻🇦 765 165 28 Feb 2024 154th rotary-o 🇯🇵 762 175 8 May 2023 155th acotis 762 229 31 May 2025 156th MeWhenI 🇻🇦 761 188 28 Feb 2024 157th MeWhenI 🇻🇦 757 256 28 Feb 2024 158th lynn 756 158 17 Feb 2024 158th AlephSquirrel 756 158 12 Jan 2025 160th SirBogman 🇺🇸 755 172 31 Jan 2024 161st MeWhenI 🇻🇦 755 233 13 May 2023 162nd MeWhenI 🇻🇦 754 181 28 Feb 2024 163rd SirBogman 🇺🇸 751 168 2 Jan 2022 164th Irratix 🇳🇱 751 173 6 May 2022 165th SirBogman 🇺🇸 749 150 31 Jan 2024 166th MeWhenI 🇻🇦 748 157 28 Feb 2024 167th SirBogman 🇺🇸 747 104 28 Nov 2023 168th SirBogman 🇺🇸 745 145 24 Nov 2021 169th sean-niemann 🇺🇸 744 134 14 Aug 2025 170th MeWhenI 🇻🇦 744 149 28 Feb 2024 171st sean-niemann 🇺🇸 743 212 23 Jun 2025 172nd jared-hughes 742 164 9 Apr 2022 173rd Natanaelel 🇸🇪 740 105 20 Feb 2024 174th MeWhenI 🇻🇦 739 192 28 Feb 2024 175th dvargas46 🇺🇸 737 185 7 Apr 2023 176th edsrzf 🇳🇿 730 178 15 days ago 177th NewDefectus 🇮🇱 729 167 21 Sep 2021 178th MeWhenI 🇻🇦 729 239 22 Apr 2024 179th SirBogman 🇺🇸 728 164 31 Jan 2024 180th primo-ppcg 🇹🇭 727 131 28 Sep 2021 181st emplv 🇱🇻 727 163 28 Mar 2025 182nd prplz 🇦🇺 726 179 13 Jan 2024 183rd CLOStrophobic 🇮🇹 726 283 3 Mar 2025 184th ovs-code 🇩🇪 725 153 10 Mar 2024 185th jared-hughes 722 180 9 Apr 2022 186th GrayJoKing 🇦🇺 720 156 2 Oct 2021 187th MeWhenI 🇻🇦 713 219 13 Aug 2024 188th Seek64 🇩🇪 710 183 17 Jun 2025 189th inventshah 709 178 12 Nov 2022 190th MeWhenI 🇻🇦 708 138 28 Feb 2024 191st SirBogman 🇺🇸 704 163 31 Jan 2024 192nd MeWhenI 🇻🇦 704 220 28 Feb 2024 193rd inventshah 697 155 12 Nov 2022 194th jared-hughes 692 180 9 Apr 2022 195th MeWhenI 🇻🇦 691 193 14 Aug 2022 196th MeWhenI 🇻🇦 689 172 5 Jan 2025 197th MeWhenI 🇻🇦 689 176 28 Feb 2024 198th kg583 🇺🇸 687 189 31 Jan 2024 199th inventshah 684 190 12 Nov 2022 199th stefangimmillaro 684 190 8 Aug 2023 199th lifthrasiir 🇰🇷 684 190 16 Nov 2024 202nd MeWhenI 🇻🇦 684 623 27 Jan 2025 203rd pardouin 🇫🇷 681 176 20 May 2025 204th jacobly0 🇺🇸 681 256 22 Apr 2024 205th primo-ppcg 🇹🇭 679 201 24 Jan 2022 206th Steffan153 🇫🇮 677 197 11 Aug 2024 207th stefangimmillaro 676 229 18 Oct 2023 207th edsrzf 🇳🇿 676 229 15 days ago 209th NewDefectus 🇮🇱 675 160 28 Dec 2021 210th inventshah 675 174 12 Nov 2022 211th KrausRaus 🇺🇸 669 182 30 Jun 2024 212th kg583 🇺🇸 667 179 17 Jul 2024 213th jared-hughes 666 143 10 Sep 2022 214th MeWhenI 🇻🇦 666 418 17 Nov 2021 215th tayloia 🇬🇧 665 183 4 May 2023 216th KasperKivimaeki 🇫🇮 663 163 3 Sep 2025 217th stefangimmillaro 661 202 13 days ago 218th MarcMush 🇫🇷 660 168 14 Jan 2024 219th duckyluuk 🇳🇱 659 197 23 Jun 2024 220th rucin93 🇵🇱 658 185 19 Jul 2024 221st lifthrasiir 🇰🇷 656 182 2 Dec 2024 222nd nullie 656 198 14 Jun 2022 222nd emgordon154 656 198 3 days ago 224th stefangimmillaro 653 181 13 days ago 225th MeWhenI 🇻🇦 652 191 28 Feb 2024 First Prev 151–225 of 439 Next Last