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 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 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 Apéry’s Constant Binary Lambda Calculus 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 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 ArkScript 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 ><> 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 ArkScript 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 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 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 Apéry’s Constant Binary Lambda Calculus 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 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 241st snoozingnewt 🇨🇦 608 250 108ms 7 Dec 2025 242nd MeWhenI 🇻🇦 607 176 158ms 4 Sep 2024 243rd stefangimmillaro 605 159 1,268ms 20 Oct 2023 244th annaproxy 605 309 129ms 4 Sep 2022 245th emgordon154 603 162 11ms 7 Aug 2024 246th postie77 601 193 406ms 24 Mar 2023 247th AlephSquirrel 600 247 5ms 27 Jan 2025 248th rucin93 🇵🇱 598 150 18ms 31 May 2025 248th Babafaba 598 150 17ms 29 Oct 2025 250th jared-hughes 595 164 9ms 9 Apr 2022 251st stefangimmillaro 595 195 2,511ms 12 Nov 2024 252nd bac0id 592 208 394ms 25 Jun 2024 253rd qpwoeirut 590 152 18ms 5 Oct 2025 254th MeWhenI 🇻🇦 589 147 246ms 28 Feb 2024 255th RaBa21 🇭🇺 586 153 18ms 31 Jul 2025 256th NewDefectus 🇮🇱 585 167 9ms 21 Sep 2021 257th MeWhenI 🇻🇦 582 191 1ms 28 Feb 2024 258th Steffan153 🇫🇮 581 124 41ms 31 Jul 2024 259th scpchicken 🇵🇼 577 324 121ms 17 Mar 2023 260th DialFrost 🇸🇬 575 201 4ms 18 Jan 2024 261st KatieLG 🇬🇧 574 170 8ms 5 Oct 2025 262nd MeWhenI 🇻🇦 574 272 1,356ms 14 Jun 2023 263rd wh3n3v3r 🇨🇿 571 157 16ms 14 Nov 2024 263rd blaztoma 🇱🇹 571 157 16ms 28 Dec 2025 265th Babafaba 569 146 394ms 29 Oct 2025 265th dokutan 569 146 346ms 34 hours ago 267th bac0id 569 185 1ms 25 Jun 2024 268th SB-945 568 158 9ms 14 Mar 2024 268th robin-scragg 568 158 20ms 27 Aug 2025 270th MeWhenI 🇻🇦 565 138 3ms 28 Feb 2024 271st lynn 565 303 158ms 31 Mar 2022 271st andersk 🇺🇸 565 303 235ms 1 Nov 2022 273rd Steffan153 🇫🇮 561 148 582ms 31 Jul 2024 274th albanian-laundromat 561 160 19ms 27 Jun 2025 275th bac0id 557 208 368ms 25 Jun 2024 276th jared-hughes 551 135 33ms 25 May 2022 277th primo-ppcg 🇹🇭 550 131 34ms 28 Sep 2021 277th olleicua 🇺🇸 550 131 37ms 20 Feb 2025 279th ryyyn 🇺🇸 550 163 18ms 9 Dec 2025 280th edsrzf 🇳🇿 548 210 4ms 16 Dec 2025 281st 5cw 🇺🇸 547 164 10ms 8 May 2024 282nd FlorianCassayre 🇫🇷 544 165 11ms 21 Oct 2023 282nd JOrE20 544 165 10ms 4 Dec 2025 284th blaztoma 🇱🇹 541 281 129ms 28 Nov 2025 285th AlephSquirrel 540 166 16ms 10 Jun 2023 285th bricknellj 540 166 19ms 3 Apr 2025 287th MeWhenI 🇻🇦 537 148 381ms 28 Feb 2024 288th lynn 537 167 10ms 13 Feb 2023 289th KrausRaus 🇺🇸 537 182 9ms 30 Jun 2024 290th tayloia 🇬🇧 534 183 10ms 4 May 2023 291st snoozingnewt 🇨🇦 534 302 115ms 20 Nov 2025 292nd Seek64 🇩🇪 528 170 10ms 27 Nov 2025 293rd ovs-code 🇩🇪 526 151 818ms 10 Mar 2024 294th lynn 526 158 477ms 17 Feb 2024 294th AlephSquirrel 526 158 535ms 12 Jan 2025 296th edsrzf 🇳🇿 525 171 24ms 16 Dec 2025 297th DialFrost 🇸🇬 525 221 1ms 29 Jan 2024 298th emgordon154 523 161 144ms 18 Oct 2024 299th MichalMarsalek 🇨🇿 523 266 483ms 12 Oct 2023 300th Salutations45 522 187 9ms 15 Oct 2025 301st bac0id 519 275 130ms 25 Jun 2024 302nd emplv 🇱🇻 517 163 146ms 28 Mar 2025 303rd Natanaelel 🇸🇪 515 363 144ms 16 Jun 2025 304th retrohun 513 259 61ms 23 Nov 2022 305th blaztoma 🇱🇹 510 153 3ms 14 Dec 2025 306th bac0id 509 257 416ms 25 Jun 2024 307th Natanaelel 🇸🇪 508 142 34ms 18 Sep 2021 308th jared-hughes 504 143 33ms 10 Sep 2022 309th prplz 🇦🇺 501 179 11ms 13 Jan 2024 310th lynn 500 96 39ms 3 Apr 2023 311th jared-hughes 498 180 17ms 9 Apr 2022 312th jerrandolph 497 306 303ms 25 Sep 2025 313th stefangimmillaro 490 147 36ms 12 May 2024 314th MeWhenI 🇻🇦 490 172 138ms 5 Jan 2025 315th alexsave 486 201 10ms 3 Jan 2026 316th janbehrens 🇩🇪 485 238 5ms 4 Dec 2024 317th inventshah 472 190 18ms 12 Nov 2022 317th stefangimmillaro 472 190 24ms 8 Aug 2023 319th p-vf 🇨🇭 471 246 366ms 21 Nov 2021 320th yzhs 🇩🇪 465 193 10ms 4 Jun 2022 First Prev 241–320 of 467 Next Last