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 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 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 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 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 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 Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 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 Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 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 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 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 stefangimmillaro 644 227 3 Oct 2023 227th emgordon154 643 202 17 May 2025 228th emgordon154 642 186 12 Apr 2025 229th lynn 642 249 25 Oct 2021 230th stefangimmillaro 642 255 24 Jul 2023 231st SirBogman 🇺🇸 640 149 31 Jan 2024 231st tatzyr 🇯🇵 640 149 10 Mar 2025 233rd stefangimmillaro 639 273 17 Nov 2023 234th orthoplex 🇨🇽 637 204 13 Oct 2021 235th dcgjb 634 181 30 Jan 2024 236th jakobkordez 🇸🇮 633 205 30 Oct 2022 237th MeWhenI 🇻🇦 631 176 4 Sep 2024 238th AdrienHache 🇫🇷 628 188 25 Jul 2025 239th stefangimmillaro 627 159 20 Oct 2023 240th annaproxy 627 207 6 May 2022 241st StefanHabel 🇨🇦 624 208 8 Apr 2024 242nd DialFrost 🇸🇬 616 180 18 Jan 2024 243rd bac0id 616 257 25 Jun 2024 244th annaproxy 616 309 4 Sep 2022 245th OllieBoyne 🇬🇧 615 211 19 Aug 2022 246th stefangimmillaro 614 195 12 Nov 2024 247th postie77 612 193 24 Mar 2023 248th Artemis21 🇬🇧 612 212 3 Jan 2025 249th bac0id 607 208 25 Jun 2024 250th rucin93 🇵🇱 604 196 5 Jan 2025 251st mathisfun271 604 215 12 Feb 2024 251st anter69 🇭🇺 604 215 7 Jul 2025 253rd TFeld00 🇩🇰 601 216 19 May 2022 253rd andrewjc2000 601 216 15 May 2025 253rd edsrzf 🇳🇿 601 216 6 Jul 2025 256th weliveinhell 🇭🇹 599 203 19 Jul 2024 256th helbling 🇨🇭 599 203 6 Sep 2024 258th neel11235813 594 201 1 Apr 2024 259th ndren 593 219 22 Nov 2023 259th neel11235813 593 219 1 Apr 2024 261st DialFrost 🇸🇬 591 201 18 Jan 2024 262nd voytxt 🇨🇿 591 206 15 Aug 2025 263rd DialFrost 🇸🇬 588 221 18 Jan 2024 263rd BREMAUCY 🇫🇷 588 221 23 days ago 265th MeWhenI 🇻🇦 588 272 14 Jun 2023 266th scpchicken 🇵🇼 587 324 17 Mar 2023 267th KatieLG 🇬🇧 585 222 7 Jul 2024 268th bac0id 584 185 25 Jun 2024 269th edsrzf 🇳🇿 582 265 22 Jun 2025 270th dmrichwa 🇺🇸 577 211 17 Jun 2023 271st jared-hughes 576 135 25 May 2022 272nd lynn 576 303 31 Mar 2022 273rd guilhem-roy 🇫🇷 572 227 3 Mar 2022 274th antimon2 🇯🇵 569 195 8 Mar 2024 275th bac0id 568 208 25 Jun 2024 276th scpchicken 🇵🇼 567 229 13 Oct 2023 276th ryyyn 🇺🇸 567 229 23 Jul 2025 278th InigoK 🇺🇸 565 230 4 days ago 279th janbehrens 🇩🇪 558 218 4 Dec 2024 280th stu303 557 233 20 Jul 2022 281st davecame 550 236 19 Mar 2024 282nd DialFrost 🇸🇬 548 221 29 Jan 2024 283rd m42km 546 238 12 Nov 2023 284th CaedenHarper 🇨🇦 541 240 10 Aug 2025 285th KatieLG 🇬🇧 538 222 27 Oct 2024 286th MichalMarsalek 🇨🇿 538 266 12 Oct 2023 287th commandblockguy 🇺🇸 537 242 27 Sep 2023 288th dokutan 534 243 6 days ago 289th olleicua 🇺🇸 532 179 20 Feb 2025 290th bac0id 532 275 25 Jun 2024 291st alemelis 530 245 27 Aug 2024 291st CornerMercury 🇬🇧 530 245 2 Mar 2025 293rd m42km 528 226 4 Feb 2024 294th albanian-laundromat 528 230 2 days ago 295th retrohun 527 259 23 Nov 2022 296th FlorianCassayre 🇫🇷 526 247 21 Oct 2023 296th janbehrens 🇩🇪 526 247 4 Dec 2024 298th janbehrens 🇩🇪 526 301 4 Dec 2024 299th CaedenHarper 🇨🇦 524 228 19 Jan 2025 299th commandblockguy 🇺🇸 524 228 14 days ago Prev 226–300 of 431 Next