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 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 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 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 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 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 Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 241st ovs-code 🇩🇪 615 113 36ms 6 Jul 2025 242nd MeWhenI 🇻🇦 612 188 4ms 28 Feb 2024 243rd KatieLG 🇬🇧 611 136 412ms 28 Oct 2024 244th dokutan 610 147 18ms 10 Sep 2025 245th MeWhenI 🇻🇦 607 176 189ms 4 Sep 2024 246th stefangimmillaro 605 159 1,268ms 20 Oct 2023 247th annaproxy 605 309 129ms 4 Sep 2022 248th emgordon154 603 162 10ms 7 Aug 2024 249th postie77 601 193 389ms 24 Mar 2023 250th error256 601 223 9ms 29 Jul 2024 251st Lv0Sys 🇵🇱 601 254 336ms 19 days ago 252nd stefangimmillaro 599 195 3,482ms 12 Nov 2024 253rd rucin93 🇵🇱 598 150 18ms 31 May 2025 253rd Babafaba 598 150 17ms 29 Oct 2025 255th AlephSquirrel 597 247 5ms 27 Jan 2025 256th jared-hughes 595 164 8ms 9 Apr 2022 257th bac0id 592 208 441ms 25 Jun 2024 258th qpwoeirut 590 152 16ms 5 Oct 2025 259th MeWhenI 🇻🇦 589 147 253ms 28 Feb 2024 260th RaBa21 🇭🇺 586 153 17ms 31 Jul 2025 261st NewDefectus 🇮🇱 585 167 10ms 21 Sep 2021 262nd MeWhenI 🇻🇦 582 191 1ms 28 Feb 2024 263rd scpchicken 🇵🇼 577 324 121ms 17 Mar 2023 264th DialFrost 🇸🇬 575 201 4ms 18 Jan 2024 265th KatieLG 🇬🇧 574 170 14ms 5 Oct 2025 266th MeWhenI 🇻🇦 574 272 1,305ms 14 Jun 2023 267th wh3n3v3r 🇨🇿 571 157 16ms 14 Nov 2024 267th blaztoma 🇱🇹 571 157 15ms 28 Dec 2025 269th Babafaba 569 146 394ms 29 Oct 2025 269th dokutan 569 146 346ms 14 Feb 2026 271st bac0id 569 185 1ms 25 Jun 2024 272nd SB-945 568 158 9ms 14 Mar 2024 272nd robin-scragg 568 158 17ms 27 Aug 2025 274th MeWhenI 🇻🇦 565 138 3ms 28 Feb 2024 275th lynn 565 303 159ms 31 Mar 2022 275th andersk 🇺🇸 565 303 229ms 1 Nov 2022 277th albanian-laundromat 561 160 17ms 27 Jun 2025 277th Lv0Sys 🇵🇱 561 160 10ms 19 days ago 279th bac0id 557 208 395ms 25 Jun 2024 280th jared-hughes 551 135 33ms 25 May 2022 281st ryyyn 🇺🇸 550 163 16ms 9 Dec 2025 282nd edsrzf 🇳🇿 548 210 4ms 16 Dec 2025 283rd 5cw 🇺🇸 547 164 10ms 8 May 2024 284th FlorianCassayre 🇫🇷 544 165 10ms 21 Oct 2023 284th JOrE20 544 165 10ms 4 Dec 2025 286th blaztoma 🇱🇹 541 281 122ms 28 Nov 2025 287th AlephSquirrel 540 166 14ms 10 Jun 2023 287th bricknellj 540 166 16ms 3 Apr 2025 289th MeWhenI 🇻🇦 537 148 381ms 28 Feb 2024 290th lynn 537 167 10ms 13 Feb 2023 291st KrausRaus 🇺🇸 537 182 10ms 30 Jun 2024 291st Lv0Sys 🇵🇱 537 182 25ms 19 days ago 293rd tayloia 🇬🇧 534 183 10ms 4 May 2023 294th snoozingnewt 🇨🇦 534 302 136ms 20 Nov 2025 295th primo-ppcg 🇹🇭 530 131 36ms 28 Sep 2021 295th olleicua 🇺🇸 530 131 35ms 20 Feb 2025 297th Seek64 🇩🇪 528 170 10ms 27 Nov 2025 298th ovs-code 🇩🇪 526 151 818ms 10 Mar 2024 299th lynn 526 158 477ms 17 Feb 2024 299th AlephSquirrel 526 158 495ms 12 Jan 2025 301st edsrzf 🇳🇿 525 171 24ms 16 Dec 2025 302nd DialFrost 🇸🇬 525 221 1ms 29 Jan 2024 303rd emgordon154 523 161 155ms 18 Oct 2024 304th MichalMarsalek 🇨🇿 523 266 398ms 12 Oct 2023 305th Salutations45 522 187 8ms 15 Oct 2025 306th bac0id 519 275 121ms 25 Jun 2024 307th emplv 🇱🇻 517 163 166ms 28 Mar 2025 308th Natanaelel 🇸🇪 515 363 144ms 16 Jun 2025 309th retrohun 513 259 61ms 23 Nov 2022 310th blaztoma 🇱🇹 510 153 3ms 14 Dec 2025 311th bac0id 509 257 416ms 25 Jun 2024 312th prplz 🇦🇺 501 179 10ms 13 Jan 2024 313th lynn 500 96 43ms 3 Apr 2023 314th jerrandolph 499 306 290ms 25 Sep 2025 315th jared-hughes 498 180 16ms 9 Apr 2022 316th MeWhenI 🇻🇦 490 172 141ms 5 Jan 2025 317th Natanaelel 🇸🇪 489 142 36ms 18 Sep 2021 318th jared-hughes 486 143 37ms 10 Sep 2022 319th alexsave 486 201 13ms 3 Jan 2026 320th janbehrens 🇩🇪 485 238 5ms 4 Dec 2024 First Prev 241–320 of 472 Next Last