QR Decoder in all languages in chars. 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 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 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 Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel 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 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel 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 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 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 Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 226th stefangimmillaro 632 255 160ms 24 Jul 2023 227th emgordon154 631 241 6ms 29 Jun 2025 228th stefangimmillaro 628 227 99ms 3 Oct 2023 229th stefangimmillaro 628 273 160ms 17 Nov 2023 230th ovs-code 🇩🇪 627 143 10ms 6 Jul 2025 231st lynn 627 249 1,329ms 25 Oct 2021 232nd jared-hughes 618 180 2ms 9 Apr 2022 233rd error256 618 223 8ms 29 Jul 2024 234th AdrienHache 🇫🇷 616 188 386ms 25 Jul 2025 235th edsrzf 🇳🇿 616 246 5ms 14 hours ago 236th AlephSquirrel 614 247 5ms 27 Jan 2025 237th KatieLG 🇬🇧 611 136 378ms 28 Oct 2024 238th dokutan 610 147 16ms 10 Sep 2025 239th snoozingnewt 🇨🇦 608 250 99ms 7 days ago 240th MeWhenI 🇻🇦 607 176 126ms 4 Sep 2024 241st stefangimmillaro 605 159 1,164ms 20 Oct 2023 242nd annaproxy 605 309 129ms 4 Sep 2022 243rd emgordon154 602 162 10ms 7 Aug 2024 244th postie77 600 193 325ms 24 Mar 2023 245th rucin93 🇵🇱 598 150 16ms 31 May 2025 245th Babafaba 598 150 18ms 29 Oct 2025 247th jared-hughes 595 164 9ms 9 Apr 2022 248th stefangimmillaro 595 195 2,875ms 12 Nov 2024 249th bac0id 592 208 381ms 25 Jun 2024 250th qpwoeirut 590 152 16ms 5 Oct 2025 251st MeWhenI 🇻🇦 589 147 276ms 28 Feb 2024 252nd RaBa21 🇭🇺 586 153 16ms 31 Jul 2025 253rd NewDefectus 🇮🇱 584 167 9ms 21 Sep 2021 254th MeWhenI 🇻🇦 582 191 2ms 28 Feb 2024 255th Steffan153 🇫🇮 581 124 33ms 31 Jul 2024 256th scpchicken 🇵🇼 577 324 121ms 17 Mar 2023 257th DialFrost 🇸🇬 575 201 5ms 18 Jan 2024 258th KatieLG 🇬🇧 574 170 9ms 5 Oct 2025 259th MeWhenI 🇻🇦 574 272 1,266ms 14 Jun 2023 260th wh3n3v3r 🇨🇿 571 157 17ms 14 Nov 2024 261st Babafaba 569 146 402ms 29 Oct 2025 262nd bac0id 569 185 1ms 25 Jun 2024 263rd SB-945 568 158 10ms 14 Mar 2024 263rd robin-scragg 568 158 17ms 27 Aug 2025 265th MeWhenI 🇻🇦 565 138 3ms 28 Feb 2024 266th dokutan 565 147 356ms 10 Sep 2025 267th lynn 565 303 154ms 31 Mar 2022 267th andersk 🇺🇸 565 303 227ms 1 Nov 2022 269th Steffan153 🇫🇮 561 148 590ms 31 Jul 2024 270th albanian-laundromat 560 160 16ms 27 Jun 2025 271st bac0id 556 208 334ms 25 Jun 2024 272nd jared-hughes 551 135 33ms 25 May 2022 273rd primo-ppcg 🇹🇭 550 131 32ms 28 Sep 2021 273rd olleicua 🇺🇸 550 131 33ms 20 Feb 2025 275th ryyyn 🇺🇸 550 163 16ms 4 days ago 276th 5cw 🇺🇸 547 164 9ms 8 May 2024 277th FlorianCassayre 🇫🇷 543 165 10ms 21 Oct 2023 277th JOrE20 🇺🇸 543 165 10ms 10 days ago 279th blaztoma 🇱🇹 541 281 114ms 16 days ago 280th AlephSquirrel 540 166 12ms 10 Jun 2023 280th bricknellj 540 166 16ms 3 Apr 2025 282nd MeWhenI 🇻🇦 537 148 351ms 28 Feb 2024 283rd lynn 537 167 10ms 13 Feb 2023 284th KrausRaus 🇺🇸 536 182 9ms 30 Jun 2024 285th snoozingnewt 🇨🇦 534 302 115ms 23 days ago 286th tayloia 🇬🇧 533 183 9ms 4 May 2023 287th Seek64 🇩🇪 528 170 10ms 17 days ago 288th ovs-code 🇩🇪 526 151 759ms 10 Mar 2024 289th lynn 526 158 619ms 17 Feb 2024 289th AlephSquirrel 526 158 386ms 12 Jan 2025 291st DialFrost 🇸🇬 525 221 1ms 29 Jan 2024 292nd emgordon154 523 161 130ms 18 Oct 2024 293rd MichalMarsalek 🇨🇿 523 266 483ms 12 Oct 2023 294th Salutations45 522 187 9ms 15 Oct 2025 295th bac0id 519 275 111ms 25 Jun 2024 296th emplv 🇱🇻 517 163 144ms 28 Mar 2025 297th Natanaelel 🇸🇪 515 363 144ms 16 Jun 2025 298th retrohun 513 259 57ms 23 Nov 2022 299th blaztoma 🇱🇹 510 153 3ms 4 hours ago 300th bac0id 508 257 435ms 25 Jun 2024 First Prev 226–300 of 459 Next Last