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 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 Minesweeper 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 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 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel 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 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel 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 Minesweeper 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 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 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 301st edsrzf 🇳🇿 504 178 26ms 4 Oct 2025 302nd jared-hughes 503 143 32ms 10 Sep 2022 303rd prplz 🇦🇺 501 179 9ms 13 Jan 2024 304th lynn 500 96 38ms 3 Apr 2023 305th jared-hughes 498 180 16ms 9 Apr 2022 306th blaztoma 🇱🇹 497 157 3ms 111 mins ago 307th jerrandolph 497 306 279ms 25 Sep 2025 308th stefangimmillaro 490 147 34ms 12 May 2024 309th MeWhenI 🇻🇦 490 172 134ms 5 Jan 2025 310th blaztoma 🇱🇹 485 185 15ms 108 mins ago 311th janbehrens 🇩🇪 485 238 5ms 4 Dec 2024 312th inventshah 472 190 16ms 12 Nov 2022 312th stefangimmillaro 472 190 24ms 8 Aug 2023 314th p-vf 🇨🇭 470 246 317ms 21 Nov 2021 315th yzhs 🇩🇪 465 193 10ms 4 Jun 2022 316th janbehrens 🇩🇪 465 286 20ms 13 Sep 2022 317th yuchuehw 462 194 17ms 6 Jan 2024 318th CaedenHarper 🇨🇦 461 330 268ms 27 days ago 319th MeWhenI 🇻🇦 460 268 483ms 4 Mar 2022 320th MeWhenI 🇻🇦 459 256 71ms 28 Feb 2024 321st janbehrens 🇩🇪 456 254 364ms 4 Dec 2024 322nd nullie 453 198 9ms 14 Jun 2022 323rd CaedenHarper 🇨🇦 451 218 846ms 2 Oct 2025 324th KatieLG 🇬🇧 447 161 33ms 2 Oct 2025 325th janbehrens 🇩🇪 447 218 9ms 4 Dec 2024 326th elgan65536 443 387 158ms 10 Apr 2024 327th jakobkordez 🇸🇮 437 205 17ms 30 Oct 2022 328th CaedenHarper 🇨🇦 437 299 552ms 7 Oct 2025 329th janbehrens 🇩🇪 434 301 464ms 4 Dec 2024 330th CatsAreFluffy 433 207 17ms 17 Feb 2024 331st Natanaelel 🇸🇪 432 737 20ms 19 Feb 2024 332nd StefanHabel 🇨🇦 431 208 11ms 8 Apr 2024 333rd rucin93 🇵🇱 430 196 141ms 5 Jan 2025 334th CaedenHarper 🇨🇦 430 269 372ms 17 Oct 2025 335th MeWhenI 🇻🇦 430 480 80ms 18 Mar 2024 336th OllieBoyne 🇬🇧 425 211 10ms 19 Aug 2022 337th InigoK 🇺🇸 419 214 16ms 22 Sep 2025 338th mathisfun271 417 215 9ms 12 Feb 2024 339th andrewjc2000 415 216 27ms 15 May 2025 340th coreynash 413 236 9ms 13 Feb 2024 340th CaedenHarper 🇨🇦 413 236 11ms 29 Aug 2025 342nd antimon2 🇯🇵 408 195 1,206ms 8 Mar 2024 343rd BREMAUCY 🇫🇷 406 221 16ms 22 Aug 2025 344th uttumuttu 🇫🇮 403 242 9ms 9 Apr 2022 345th pschmid0 🇺🇸 402 287 8ms 23 Oct 2022 346th janbehrens 🇩🇪 401 307 2,272ms 20 Nov 2022 347th guilhem-roy 🇫🇷 395 227 11ms 3 Mar 2022 348th scpchicken 🇵🇼 392 229 19ms 13 Oct 2023 349th Waffle3z 392 249 8ms 18 Sep 2021 350th janbehrens 🇩🇪 392 314 457ms 13 Sep 2022 351st olleicua 🇺🇸 390 250 9ms 21 Feb 2024 352nd stu303 385 233 10ms 20 Jul 2022 353rd davecame 380 236 16ms 19 Mar 2024 354th scpchicken 🇵🇼 379 206 2ms 24 Feb 2023 355th m42km 377 238 18ms 12 Nov 2023 356th CaedenHarper 🇨🇦 374 240 11ms 10 Aug 2025 357th annaproxy 374 309 344ms 20 Mar 2022 358th Xzyaihni 373 459 229ms 20 Oct 2022 359th commandblockguy 🇺🇸 371 242 10ms 27 Sep 2023 360th h3ra993huskp 🇯🇵 371 352 457ms 14 days ago 361st m42km 368 226 1,124ms 4 Feb 2024 362nd alemelis 366 245 16ms 27 Aug 2024 363rd CaedenHarper 🇨🇦 364 228 670ms 19 Jan 2025 363rd commandblockguy 🇺🇸 364 228 827ms 1 Sep 2025 365th janbehrens 🇩🇪 363 247 10ms 4 Dec 2024 366th janbehrens 🇩🇪 362 291 2ms 13 Sep 2022 367th Waffle3z 356 202 31ms 23 Sep 2021 368th rucin93 🇵🇱 355 234 1,030ms 21 Jan 2024 369th cros107 🇦🇺 352 255 10ms 28 Jan 2024 370th c0d3-4-F00d 🇩🇪 350 301 2ms 21 Mar 2022 371st CedricGebistorf 349 257 16ms 3 Mar 2022 372nd MostParsingVex 349 332 3,245ms 11 Nov 2024 373rd DialFrost 🇸🇬 348 367 4ms 27 Sep 2024 374th BambooleanLogic 🇸🇪 347 281 9ms 13 Jul 2023 375th te-chnical 345 260 22ms 25 days ago First Prev 301–375 of 459 Next 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