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 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 Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator 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 Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator 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 Chars Time Submitted 241st MeWhenI 🇻🇦 628 170 133ms 13 days ago 242nd stefangimmillaro 628 227 113ms 3 Oct 2023 243rd lynn 627 249 1,351ms 25 Oct 2021 244th jared-hughes 618 180 1ms 9 Apr 2022 245th AdrienHache 🇫🇷 617 188 398ms 25 Jul 2025 246th ovs-code 🇩🇪 615 113 36ms 6 Jul 2025 247th MeWhenI 🇻🇦 612 188 4ms 28 Feb 2024 248th KatieLG 🇬🇧 611 136 549ms 28 Oct 2024 249th dokutan 610 147 20ms 10 Sep 2025 250th stefangimmillaro 605 159 1,268ms 20 Oct 2023 251st annaproxy 605 309 129ms 4 Sep 2022 252nd emgordon154 603 162 10ms 7 Aug 2024 253rd stefangimmillaro 602 195 2,634ms 12 Nov 2024 254th postie77 601 193 376ms 24 Mar 2023 254th targrik 601 193 5ms 35 hours ago 256th error256 601 223 9ms 29 Jul 2024 257th Lv0Sys 🇵🇱 601 254 343ms 28 Feb 2026 258th rucin93 🇵🇱 598 150 19ms 31 May 2025 258th Babafaba 598 150 18ms 29 Oct 2025 260th AlephSquirrel 597 247 6ms 27 Jan 2025 261st jared-hughes 596 164 12ms 9 Apr 2022 262nd bac0id 592 208 447ms 25 Jun 2024 263rd qpwoeirut 590 152 19ms 5 Oct 2025 264th MeWhenI 🇻🇦 589 147 241ms 28 Feb 2024 265th RaBa21 🇭🇺 587 153 17ms 31 Jul 2025 266th NewDefectus 🇮🇱 585 167 12ms 21 Sep 2021 267th MeWhenI 🇻🇦 582 191 1ms 28 Feb 2024 268th DialFrost 🇸🇬 577 201 4ms 18 Jan 2024 269th KatieLG 🇬🇧 575 170 11ms 5 Oct 2025 270th MeWhenI 🇻🇦 574 272 1,305ms 14 Jun 2023 271st wh3n3v3r 🇨🇿 572 157 20ms 14 Nov 2024 271st blaztoma 🇱🇹 572 157 16ms 28 Dec 2025 273rd bac0id 570 185 1ms 25 Jun 2024 274th lynn 570 303 153ms 31 Mar 2022 274th andersk 🇺🇸 570 303 223ms 1 Nov 2022 276th Babafaba 569 146 365ms 29 Oct 2025 276th dokutan 569 146 456ms 14 Feb 2026 278th SB-945 568 158 11ms 14 Mar 2024 278th robin-scragg 568 158 18ms 27 Aug 2025 280th MeWhenI 🇻🇦 565 138 3ms 28 Feb 2024 281st albanian-laundromat 🇺🇸 561 160 20ms 27 Jun 2025 281st Lv0Sys 🇵🇱 561 160 11ms 28 Feb 2026 283rd bac0id 557 208 395ms 25 Jun 2024 284th jared-hughes 551 135 33ms 25 May 2022 285th ryyyn 🇺🇸 551 163 19ms 9 Dec 2025 286th edsrzf 🇳🇿 548 210 4ms 16 Dec 2025 287th 5cw 🇺🇸 547 164 10ms 8 May 2024 288th FlorianCassayre 🇫🇷 544 165 10ms 21 Oct 2023 288th JOrE20 544 165 13ms 4 Dec 2025 290th AlephSquirrel 541 166 13ms 10 Jun 2023 290th bricknellj 541 166 18ms 3 Apr 2025 292nd janAkali 🇷🇺 541 259 380ms 16 days ago 293rd blaztoma 🇱🇹 541 281 115ms 28 Nov 2025 294th MeWhenI 🇻🇦 537 148 381ms 28 Feb 2024 295th lynn 537 167 10ms 13 Feb 2023 296th KrausRaus 🇺🇸 537 182 14ms 30 Jun 2024 296th Lv0Sys 🇵🇱 537 182 10ms 28 Feb 2026 298th tayloia 🇬🇧 534 183 12ms 4 May 2023 299th snoozingnewt 🇨🇦 534 302 125ms 20 Nov 2025 300th primo-ppcg 🇹🇭 530 131 36ms 28 Sep 2021 300th olleicua 🇺🇸 530 131 35ms 20 Feb 2025 302nd Seek64 🇩🇪 528 170 13ms 27 Nov 2025 303rd MichalMarsalek 🇨🇿 527 266 398ms 12 Oct 2023 304th ovs-code 🇩🇪 526 151 818ms 10 Mar 2024 305th lynn 526 158 524ms 17 Feb 2024 305th AlephSquirrel 526 158 454ms 12 Jan 2025 307th edsrzf 🇳🇿 525 171 27ms 16 Dec 2025 308th DialFrost 🇸🇬 525 221 1ms 29 Jan 2024 309th emgordon154 523 161 146ms 18 Oct 2024 310th Salutations45 523 187 9ms 15 Oct 2025 311th bac0id 519 275 125ms 25 Jun 2024 312th emplv 🇱🇻 517 163 163ms 28 Mar 2025 313th Natanaelel 🇸🇪 515 363 144ms 16 Jun 2025 314th retrohun 513 259 61ms 23 Nov 2022 315th blaztoma 🇱🇹 510 153 3ms 14 Dec 2025 316th bac0id 509 257 416ms 25 Jun 2024 317th prplz 🇦🇺 501 179 10ms 13 Jan 2024 318th lynn 500 96 43ms 3 Apr 2023 319th jared-hughes 499 180 17ms 9 Apr 2022 320th jerrandolph 499 306 368ms 25 Sep 2025 First Prev 241–320 of 482 Next Last