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 301st rucin93 🇵🇱 519 250 21 Jan 2024 302nd coreynash 516 236 13 Feb 2024 302nd CaedenHarper 🇨🇦 516 236 7 days ago 304th DialFrost 🇸🇬 511 367 27 Sep 2024 305th rucin93 🇵🇱 510 234 21 Jan 2024 306th cros107 509 255 28 Jan 2024 306th RaBa21 🇭🇺 509 255 31 Jul 2025 308th dokutan 508 235 5 Jun 2025 309th CedricGebistorf 505 257 3 Mar 2022 310th andersk 🇺🇸 504 346 1 Nov 2022 311th uttumuttu 🇫🇮 503 242 9 Apr 2022 312th scpchicken 🇵🇼 501 224 25 Feb 2023 313th Waffle3z 500 249 18 Sep 2021 314th snoozingnewt 🇺🇸 500 284 14 Oct 2023 315th janbehrens 🇩🇪 499 238 4 Dec 2024 316th MarcMush 🇫🇷 498 261 14 Jan 2024 317th emgordon154 497 245 4 Aug 2024 318th RYNO8 496 262 4 Sep 2023 319th CaedenHarper 🇨🇦 494 244 22 hours ago 320th CatsAreFluffy 494 263 17 Feb 2024 321st albanian-laundromat 494 319 16 Jul 2025 322nd wh3n3v3r 🇨🇿 492 264 14 Nov 2024 323rd SB-945 490 265 14 Mar 2024 324th Waffle3z 489 249 18 Sep 2021 325th mossiegoat 488 266 9 days ago 326th olleicua 🇺🇸 487 250 21 Feb 2024 327th ridingqwerty 🇺🇸 486 267 14 Feb 2024 327th te-chnical 486 267 3 May 2025 329th albanian-laundromat 485 268 28 Jun 2025 329th FortuiteMan 🇫🇷 485 268 7 Jul 2025 331st p-vf 🇨🇭 480 246 21 Nov 2021 332nd alemelis 480 249 23 Aug 2024 333rd KatieLG 🇬🇧 479 254 26 Oct 2022 334th janbehrens 🇩🇪 477 286 13 Sep 2022 335th scpchicken 🇵🇼 474 206 24 Feb 2023 336th MeWhenI 🇻🇦 473 268 4 Mar 2022 337th Waffle3z 472 202 23 Sep 2021 338th albanian-laundromat 469 257 6 days ago 339th janbehrens 🇩🇪 465 254 4 Dec 2024 340th snoozingnewt 🇺🇸 465 279 23 Sep 2023 341st janbehrens 🇩🇪 462 240 4 Dec 2024 342nd adamnielson42 🇺🇸 454 286 29 Nov 2023 343rd elgan65536 451 387 10 Apr 2024 344th emgordon154 447 265 5 Jan 2025 345th snoozingnewt 🇺🇸 441 271 11 Feb 2024 346th MeWhenI 🇻🇦 441 480 18 Mar 2024 347th knutae 🇳🇴 439 296 29 Oct 2021 348th Natanaelel 🇸🇪 438 737 19 Feb 2024 349th BambooleanLogic 🇸🇪 433 281 13 Jul 2023 350th h3ra993huskp 🇯🇵 426 372 6 May 2024 351st IISResetMe 422 272 14 Jun 2024 352nd msbranicky 419 310 12 Aug 2023 353rd pschmid0 🇺🇸 414 287 23 Oct 2022 354th janbehrens 🇩🇪 411 307 20 Nov 2022 355th raspofabs 407 319 12 Nov 2023 356th MeWhenI 🇻🇦 406 506 19 Mar 2024 357th janbehrens 🇩🇪 404 314 13 Sep 2022 358th yzhs 🇩🇪 392 331 4 Jun 2022 359th LeeCamp 386 336 9 Dec 2021 360th msbranicky 384 311 16 Jan 2024 361st yuchuehw 384 338 5 Jan 2024 362nd mbittner20 383 339 3 Jul 2023 363rd annaproxy 382 309 20 Mar 2022 364th CatsAreFluffy 380 201 27 Jan 2023 365th Indivicivet 380 342 19 Oct 2021 366th Xzyaihni 380 459 20 Oct 2022 367th janbehrens 🇩🇪 371 291 13 Sep 2022 368th TaserTheFox 🇺🇸 370 351 19 May 2023 369th amollberg 🇸🇪 368 353 7 Jan 2022 370th Flekay 🇩🇪 365 356 11 Jul 2025 371st MostParsingVex 361 332 11 Nov 2024 372nd msbranicky 361 437 27 Aug 2023 373rd c0d3-4-F00d 🇩🇪 359 301 21 Mar 2022 374th KatieLG 🇬🇧 357 267 9 Jan 2023 375th KrausRaus 🇺🇸 352 369 4 Jul 2024 Prev 301–375 of 431 Next