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 Trinomial Triangle 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 Smooth Numbers Snake Sphenic Numbers 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 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 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 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 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 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 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 Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Bytes Time 301st Natanaelel 🇸🇪 524 363 16 Jun 2025 302nd Natanaelel 🇸🇪 521 183 18 Feb 2024 303rd rucin93 🇵🇱 520 250 21 Jan 2024 304th bac0id 518 257 25 Jun 2024 305th coreynash 516 236 13 Feb 2024 305th CaedenHarper 🇨🇦 516 236 29 Aug 2025 307th dokutan 515 232 26 days ago 308th DialFrost 🇸🇬 511 367 27 Sep 2024 309th rucin93 🇵🇱 510 234 21 Jan 2024 310th cros107 🇦🇺 509 255 28 Jan 2024 310th RaBa21 🇭🇺 509 255 31 Jul 2025 312th jerrandolph 506 306 11 days ago 313th CedricGebistorf 505 257 3 Mar 2022 314th andersk 🇺🇸 504 346 1 Nov 2022 315th uttumuttu 🇫🇮 503 242 9 Apr 2022 316th scpchicken 🇵🇼 501 224 25 Feb 2023 317th Waffle3z 500 249 18 Sep 2021 318th snoozingnewt 🇺🇸 500 284 14 Oct 2023 319th janbehrens 🇩🇪 499 238 4 Dec 2024 320th MarcMush 🇫🇷 498 261 14 Jan 2024 320th blaztoma 🇱🇹 498 261 15 days ago 322nd emgordon154 497 245 4 Aug 2024 323rd RYNO8 496 262 4 Sep 2023 324th CatsAreFluffy 494 263 17 Feb 2024 325th albanian-laundromat 494 319 16 Jul 2025 326th wh3n3v3r 🇨🇿 492 264 14 Nov 2024 327th SB-945 490 265 14 Mar 2024 328th Waffle3z 489 249 18 Sep 2021 329th mossiegoat 488 266 27 Aug 2025 330th olleicua 🇺🇸 487 250 21 Feb 2024 331st ridingqwerty 🇺🇸 486 267 14 Feb 2024 331st te-chnical 486 267 3 May 2025 333rd albanian-laundromat 485 268 28 Jun 2025 333rd FortuiteMan 🇫🇷 485 268 7 Jul 2025 335th p-vf 🇨🇭 480 246 21 Nov 2021 336th alemelis 480 249 23 Aug 2024 337th KatieLG 🇬🇧 479 254 26 Oct 2022 338th snoozingnewt 🇺🇸 478 272 6 days ago 339th janbehrens 🇩🇪 477 286 13 Sep 2022 340th scpchicken 🇵🇼 474 206 24 Feb 2023 341st MeWhenI 🇻🇦 473 268 4 Mar 2022 342nd Waffle3z 472 202 23 Sep 2021 343rd janbehrens 🇩🇪 465 254 4 Dec 2024 344th janbehrens 🇩🇪 462 240 4 Dec 2024 345th adamnielson42 🇺🇸 454 286 29 Nov 2023 346th elgan65536 451 387 10 Apr 2024 347th emgordon154 447 265 5 Jan 2025 348th janbehrens 🇩🇪 442 301 4 Dec 2024 349th snoozingnewt 🇺🇸 441 271 11 Feb 2024 350th MeWhenI 🇻🇦 441 480 18 Mar 2024 351st knutae 🇳🇴 439 296 29 Oct 2021 352nd Natanaelel 🇸🇪 438 737 19 Feb 2024 353rd BambooleanLogic 🇸🇪 433 281 13 Jul 2023 354th qpwoeirut 423 307 37 hours ago 355th IISResetMe 422 272 14 Jun 2024 356th msbranicky 419 310 12 Aug 2023 357th pschmid0 🇺🇸 414 287 23 Oct 2022 358th janbehrens 🇩🇪 411 307 20 Nov 2022 359th raspofabs 407 319 12 Nov 2023 360th MeWhenI 🇻🇦 406 506 19 Mar 2024 361st janbehrens 🇩🇪 404 314 13 Sep 2022 362nd yzhs 🇩🇪 392 331 4 Jun 2022 363rd LeeCamp 387 336 9 Dec 2021 364th msbranicky 384 311 16 Jan 2024 365th yuchuehw 384 338 5 Jan 2024 366th mbittner20 383 339 3 Jul 2023 367th annaproxy 382 309 20 Mar 2022 368th CatsAreFluffy 380 201 27 Jan 2023 369th Indivicivet 380 342 19 Oct 2021 370th Xzyaihni 380 459 20 Oct 2022 371st janbehrens 🇩🇪 371 291 13 Sep 2022 372nd TaserTheFox 🇺🇸 370 351 19 May 2023 373rd amollberg 🇸🇪 368 353 7 Jan 2022 374th Flekay 🇩🇪 365 356 11 Jul 2025 375th MostParsingVex 361 332 11 Nov 2024 First Prev 301–375 of 435 Next Last