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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 Submitted 151st Steffan153 🇫🇮 768 124 35ms 31 Jul 2024 152nd MeWhenI 🇻🇦 765 165 413ms 28 Feb 2024 153rd rotary-o 🇯🇵 762 175 512ms 8 May 2023 154th acotis 762 229 195ms 31 May 2025 155th MeWhenI 🇻🇦 761 188 425ms 28 Feb 2024 156th MeWhenI 🇻🇦 757 256 68ms 28 Feb 2024 157th lynn 756 158 706ms 17 Feb 2024 157th AlephSquirrel 756 158 465ms 12 Jan 2025 159th SirBogman 🇺🇸 755 172 17ms 31 Jan 2024 160th MeWhenI 🇻🇦 755 233 49ms 13 May 2023 161st MeWhenI 🇻🇦 754 181 23ms 28 Feb 2024 162nd SirBogman 🇺🇸 751 168 448ms 2 Jan 2022 163rd Irratix 🇳🇱 751 173 25ms 6 May 2022 164th SirBogman 🇺🇸 749 150 118ms 31 Jan 2024 165th MeWhenI 🇻🇦 748 157 2ms 28 Feb 2024 166th SirBogman 🇺🇸 747 104 42ms 28 Nov 2023 167th SirBogman 🇺🇸 745 145 2ms 24 Nov 2021 168th sean-niemann 🇺🇸 744 134 919ms 14 Aug 2025 169th MeWhenI 🇻🇦 744 149 456ms 28 Feb 2024 170th sean-niemann 🇺🇸 743 212 4ms 23 Jun 2025 171st jared-hughes 742 164 9ms 9 Apr 2022 172nd Natanaelel 🇸🇪 740 105 47ms 20 Feb 2024 173rd MeWhenI 🇻🇦 739 192 94ms 28 Feb 2024 174th dvargas46 🇺🇸 737 185 21ms 7 Apr 2023 175th edsrzf 🇳🇿 730 178 24ms 24 days ago 176th NewDefectus 🇮🇱 729 167 11ms 21 Sep 2021 177th MeWhenI 🇻🇦 729 239 1,716ms 22 Apr 2024 178th SirBogman 🇺🇸 728 164 475ms 31 Jan 2024 179th primo-ppcg 🇹🇭 727 131 38ms 28 Sep 2021 180th emplv 🇱🇻 727 163 149ms 28 Mar 2025 181st prplz 🇦🇺 726 179 10ms 13 Jan 2024 182nd CLOStrophobic 🇮🇹 726 283 6ms 3 Mar 2025 183rd ovs-code 🇩🇪 725 153 738ms 10 Mar 2024 184th kg583 🇺🇸 725 224 4ms 4 days ago 185th jared-hughes 722 180 17ms 9 Apr 2022 186th GrayJoKing 🇦🇺 720 156 130ms 2 Oct 2021 187th MeWhenI 🇻🇦 713 219 6ms 13 Aug 2024 188th Seek64 🇩🇪 710 183 33ms 17 Jun 2025 189th inventshah 709 178 407ms 12 Nov 2022 190th MeWhenI 🇻🇦 708 138 3ms 28 Feb 2024 191st edsrzf 🇳🇿 706 230 4ms 4 days ago 192nd SirBogman 🇺🇸 704 163 233ms 31 Jan 2024 193rd MeWhenI 🇻🇦 704 220 262ms 28 Feb 2024 194th inventshah 697 155 2ms 12 Nov 2022 195th jared-hughes 692 180 2ms 9 Apr 2022 196th MeWhenI 🇻🇦 691 193 322ms 14 Aug 2022 197th MeWhenI 🇻🇦 689 172 139ms 5 Jan 2025 198th MeWhenI 🇻🇦 689 176 2ms 28 Feb 2024 199th kg583 🇺🇸 687 189 21ms 31 Jan 2024 200th inventshah 684 190 18ms 12 Nov 2022 200th stefangimmillaro 684 190 24ms 8 Aug 2023 200th lifthrasiir 🇰🇷 684 190 18ms 16 Nov 2024 203rd MeWhenI 🇻🇦 684 623 14ms 27 Jan 2025 204th pardouin 🇫🇷 681 176 2,863ms 20 May 2025 205th jacobly0 🇺🇸 681 256 1,678ms 22 Apr 2024 206th primo-ppcg 🇹🇭 679 201 14ms 24 Jan 2022 207th Steffan153 🇫🇮 677 197 501ms 11 Aug 2024 208th stefangimmillaro 676 229 275ms 18 Oct 2023 208th edsrzf 🇳🇿 676 229 297ms 24 days ago 210th NewDefectus 🇮🇱 675 160 2ms 28 Dec 2021 211th inventshah 675 174 2ms 12 Nov 2022 212th KrausRaus 🇺🇸 669 182 10ms 30 Jun 2024 213th kg583 🇺🇸 667 179 721ms 17 Jul 2024 214th jared-hughes 666 143 35ms 10 Sep 2022 215th MeWhenI 🇻🇦 666 418 20ms 17 Nov 2021 216th tayloia 🇬🇧 665 183 11ms 4 May 2023 217th KasperKivimaeki 🇫🇮 663 163 3ms 3 Sep 2025 218th stefangimmillaro 661 202 791ms 22 days ago 219th MarcMush 🇫🇷 660 168 536ms 14 Jan 2024 220th duckyluuk 🇳🇱 659 197 18ms 23 Jun 2024 221st rucin93 🇵🇱 658 185 10ms 19 Jul 2024 222nd lifthrasiir 🇰🇷 656 182 445ms 2 Dec 2024 223rd nullie 656 198 10ms 14 Jun 2022 223rd emgordon154 656 198 9ms 11 days ago 225th stefangimmillaro 653 181 336ms 22 days ago First Prev 151–225 of 441 Next Last