QR Decoder in all languages in bytes. Cheevos Holes Recent Holes Langs Medals Misc 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 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 Maze Medal Tally 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 Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle 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 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 Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 Maze Medal Tally 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 Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 226th orthoplex 🇨🇽 636 204 13 Oct 2021 227th error256 636 329 29 Jul 2024 228th emgordon154 635 246 17 days ago 229th dcgjb 633 181 30 Jan 2024 230th jakobkordez 🇸🇮 633 205 30 Oct 2022 231st MeWhenI 🇻🇦 631 176 4 Sep 2024 232nd annaproxy 627 207 6 May 2022 233rd AdrienHache 🇫🇷 625 189 3 Jan 2025 234th StefanHabel 🇨🇦 624 208 8 Apr 2024 235th stefangimmillaro 623 159 20 Oct 2023 236th DialFrost 🇸🇬 616 180 18 Jan 2024 237th bac0id 616 257 25 Jun 2024 238th annaproxy 616 309 4 Sep 2022 239th OllieBoyne 🇬🇧 615 211 19 Aug 2022 240th stefangimmillaro 614 195 12 Nov 2024 241st postie77 612 193 24 Mar 2023 242nd Artemis21 🇬🇧 612 212 3 Jan 2025 243rd bac0id 607 208 25 Jun 2024 244th rucin93 🇵🇱 604 196 5 Jan 2025 245th mathisfun271 603 215 12 Feb 2024 246th TFeld00 🇩🇰 601 216 19 May 2022 246th andrewjc2000 601 216 15 May 2025 248th weliveinhell 🇭🇹 599 203 19 Jul 2024 248th helbling 🇨🇭 599 203 6 Sep 2024 250th edsrzf 🇳🇿 595 218 2 days ago 251st neel11235813 594 201 1 Apr 2024 252nd ndren 592 219 22 Nov 2023 252nd neel11235813 592 219 1 Apr 2024 254th DialFrost 🇸🇬 591 201 18 Jan 2024 255th MeWhenI 🇻🇦 588 272 14 Jun 2023 256th voytxt 🇨🇿 587 207 31 Jul 2024 257th DialFrost 🇸🇬 587 221 18 Jan 2024 258th scpchicken 🇵🇼 587 324 17 Mar 2023 259th bac0id 584 185 25 Jun 2024 260th KatieLG 🇬🇧 584 222 7 Jul 2024 261st edsrzf 🇳🇿 582 265 2 days ago 262nd jared-hughes 576 135 25 May 2022 263rd dmrichwa 🇺🇸 576 211 17 Jun 2023 264th lynn 576 303 31 Mar 2022 265th guilhem-roy 🇫🇷 571 227 3 Mar 2022 266th antimon2 🇯🇵 569 195 8 Mar 2024 267th bac0id 568 208 25 Jun 2024 268th scpchicken 🇵🇼 566 229 13 Oct 2023 269th janbehrens 🇩🇪 557 218 4 Dec 2024 270th stu303 557 233 20 Jul 2022 271st davecame 550 236 19 Mar 2024 272nd DialFrost 🇸🇬 548 221 29 Jan 2024 273rd m42km 545 238 12 Nov 2023 274th InigoK 🇺🇸 541 240 11 Jun 2023 275th KatieLG 🇬🇧 538 222 27 Oct 2024 276th MichalMarsalek 🇨🇿 538 266 12 Oct 2023 277th commandblockguy 🇺🇸 536 242 27 Sep 2023 278th CaedenHarper 🇨🇦 534 243 19 Jan 2025 279th olleicua 🇺🇸 532 179 20 Feb 2025 280th bac0id 532 275 25 Jun 2024 281st alemelis 530 245 27 Aug 2024 281st CornerMercury 🇬🇧 530 245 2 Mar 2025 283rd m42km 528 226 4 Feb 2024 284th dokutan 527 246 24 Feb 2025 285th retrohun 527 259 23 Nov 2022 286th janbehrens 🇩🇪 526 301 4 Dec 2024 287th FlorianCassayre 🇫🇷 525 247 21 Oct 2023 287th janbehrens 🇩🇪 525 247 4 Dec 2024 289th CaedenHarper 🇨🇦 524 228 19 Jan 2025 290th Natanaelel 🇸🇪 524 363 7 days ago 291st Natanaelel 🇸🇪 520 183 18 Feb 2024 292nd rucin93 🇵🇱 519 250 21 Jan 2024 293rd coreynash 515 236 13 Feb 2024 294th DialFrost 🇸🇬 511 367 27 Sep 2024 295th rucin93 🇵🇱 510 234 21 Jan 2024 296th cros107 509 255 28 Jan 2024 297th dokutan 508 235 18 days ago 298th CedricGebistorf 505 257 3 Mar 2022 299th andersk 🇺🇸 504 346 1 Nov 2022 300th uttumuttu 🇫🇮 502 242 9 Apr 2022 Prev 226–300 of 415 Next