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 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 Minesweeper 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 Binary Lambda Calculus Calendar Connect Four Continued Fractions 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 Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Tower of Hanoi 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 Minesweeper 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 Binary Lambda Calculus Calendar Connect Four Continued Fractions 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 Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Bytes Time Submitted 151st ovs-code 🇩🇪 772 140 1ms 10 Jul 2024 152nd GolfingSuccess 🇬🇷 771 155 584ms 5 Aug 2025 153rd rak1507 🇬🇧 770 87 2ms 31 Jan 2022 154th ovs-code 🇩🇪 769 164 381ms 10 Jul 2024 155th Steffan153 🇫🇮 768 124 35ms 31 Jul 2024 156th MeWhenI 🇻🇦 765 165 363ms 28 Feb 2024 157th rotary-o 🇯🇵 762 175 313ms 8 May 2023 158th acotis 762 229 172ms 31 May 2025 159th MeWhenI 🇻🇦 761 188 323ms 28 Feb 2024 160th MeWhenI 🇻🇦 757 256 68ms 28 Feb 2024 161st lynn 756 158 706ms 17 Feb 2024 161st AlephSquirrel 756 158 465ms 12 Jan 2025 163rd SirBogman 🇺🇸 755 172 15ms 31 Jan 2024 163rd ryyyn 🇺🇸 755 172 15ms 8 days ago 165th MeWhenI 🇻🇦 755 233 49ms 13 May 2023 166th MeWhenI 🇻🇦 754 181 23ms 28 Feb 2024 167th SirBogman 🇺🇸 751 168 382ms 2 Jan 2022 168th Irratix 🇳🇱 751 173 20ms 6 May 2022 169th SirBogman 🇺🇸 749 150 112ms 31 Jan 2024 170th MeWhenI 🇻🇦 748 157 2ms 28 Feb 2024 171st SirBogman 🇺🇸 747 104 42ms 28 Nov 2023 172nd SirBogman 🇺🇸 745 145 2ms 24 Nov 2021 172nd KasperKivimaeki 🇫🇮 745 145 849ms 12 days ago 174th sean-niemann 🇺🇸 744 134 835ms 14 Aug 2025 175th MeWhenI 🇻🇦 744 149 351ms 28 Feb 2024 176th sean-niemann 🇺🇸 743 212 2ms 23 Jun 2025 177th jared-hughes 742 164 9ms 9 Apr 2022 178th Natanaelel 🇸🇪 740 105 47ms 20 Feb 2024 179th MeWhenI 🇻🇦 739 192 80ms 28 Feb 2024 180th dvargas46 🇺🇸 737 185 21ms 7 Apr 2023 181st MeWhenI 🇻🇦 736 239 1,682ms 22 Apr 2024 182nd edsrzf 🇳🇿 730 178 23ms 4 Oct 2025 183rd SirBogman 🇺🇸 729 164 475ms 31 Jan 2024 184th NewDefectus 🇮🇱 729 167 8ms 21 Sep 2021 185th primo-ppcg 🇹🇭 727 131 38ms 28 Sep 2021 186th emplv 🇱🇻 727 163 140ms 28 Mar 2025 187th prplz 🇦🇺 726 179 10ms 13 Jan 2024 188th edsrzf 🇳🇿 726 279 41ms 9 days ago 189th CLOStrophobic 🇮🇹 726 283 6ms 3 Mar 2025 190th ovs-code 🇩🇪 725 153 766ms 10 Mar 2024 191st kg583 🇺🇸 725 224 4ms 24 Oct 2025 192nd jared-hughes 722 180 15ms 9 Apr 2022 193rd GrayJoKing 🇦🇺 720 156 129ms 2 Oct 2021 194th MeWhenI 🇻🇦 713 219 6ms 13 Aug 2024 195th Seek64 🇩🇪 710 183 27ms 17 Jun 2025 196th inventshah 709 178 377ms 12 Nov 2022 197th MeWhenI 🇻🇦 708 138 3ms 28 Feb 2024 198th MeWhenI 🇻🇦 706 220 258ms 28 Feb 2024 199th edsrzf 🇳🇿 706 230 3ms 24 Oct 2025 200th SirBogman 🇺🇸 704 163 220ms 31 Jan 2024 201st inventshah 697 155 2ms 12 Nov 2022 202nd jared-hughes 692 180 2ms 9 Apr 2022 203rd MeWhenI 🇻🇦 689 172 134ms 5 Jan 2025 204th kg583 🇺🇸 687 189 16ms 31 Jan 2024 205th jacobly0 🇺🇸 687 256 1,634ms 22 Apr 2024 206th inventshah 684 190 17ms 12 Nov 2022 206th stefangimmillaro 684 190 23ms 8 Aug 2023 206th lifthrasiir 🇰🇷 684 190 18ms 16 Nov 2024 209th MeWhenI 🇻🇦 684 623 13ms 27 Jan 2025 210th pardouin 🇫🇷 681 176 3,946ms 20 May 2025 211th MeWhenI 🇻🇦 679 176 1ms 28 Feb 2024 212th primo-ppcg 🇹🇭 679 201 14ms 24 Jan 2022 213th stefangimmillaro 678 229 271ms 18 Oct 2023 213th edsrzf 🇳🇿 678 229 245ms 4 Oct 2025 215th Steffan153 🇫🇮 677 197 298ms 11 Aug 2024 216th NewDefectus 🇮🇱 675 160 2ms 28 Dec 2021 217th inventshah 675 174 2ms 12 Nov 2022 218th KrausRaus 🇺🇸 669 182 10ms 30 Jun 2024 219th kg583 🇺🇸 668 179 721ms 17 Jul 2024 220th jared-hughes 666 143 35ms 10 Sep 2022 221st MeWhenI 🇻🇦 666 418 20ms 17 Nov 2021 222nd tayloia 🇬🇧 665 183 9ms 4 May 2023 223rd stefangimmillaro 661 202 351ms 6 Oct 2025 224th MarcMush 🇫🇷 660 168 586ms 14 Jan 2024 225th duckyluuk 🇳🇱 659 197 16ms 23 Jun 2024 First Prev 151–225 of 450 Next Last