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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Multitap Input 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers 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 ><> ALGOL 68 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 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 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 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Multitap Input 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers 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 321st inventshah 472 190 17ms 12 Nov 2022 321st stefangimmillaro 472 190 24ms 8 Aug 2023 323rd p-vf 🇨🇭 471 246 404ms 21 Nov 2021 324th yzhs 🇩🇪 465 193 10ms 4 Jun 2022 325th janbehrens 🇩🇪 465 286 18ms 13 Sep 2022 326th CaedenHarper 🇨🇦 463 330 289ms 17 Nov 2025 327th yuchuehw 462 194 16ms 6 Jan 2024 328th MeWhenI 🇻🇦 460 268 432ms 4 Mar 2022 329th MeWhenI 🇻🇦 459 256 64ms 28 Feb 2024 330th janbehrens 🇩🇪 456 254 386ms 4 Dec 2024 331st nullie 453 198 10ms 14 Jun 2022 332nd CaedenHarper 🇨🇦 451 218 1,344ms 2 Oct 2025 333rd KatieLG 🇬🇧 448 161 37ms 2 Oct 2025 334th janbehrens 🇩🇪 448 218 10ms 4 Dec 2024 335th elgan65536 🇺🇸 445 385 161ms 7 Feb 2026 336th jakobkordez 🇸🇮 438 205 17ms 30 Oct 2022 337th CaedenHarper 🇨🇦 438 299 397ms 7 Oct 2025 338th janbehrens 🇩🇪 435 301 463ms 4 Dec 2024 339th CatsAreFluffy 433 207 17ms 17 Feb 2024 339th StefanHabel 🇨🇦 433 207 11ms 5 days ago 341st Natanaelel 🇸🇪 432 737 20ms 19 Feb 2024 342nd CaedenHarper 🇨🇦 431 269 417ms 17 Oct 2025 343rd Chinay-Domitrix 🇺🇸 431 271 2,530ms 61 mins ago 344th rucin93 🇵🇱 430 196 191ms 5 Jan 2025 345th MeWhenI 🇻🇦 430 480 91ms 18 Mar 2024 346th OllieBoyne 🇬🇧 425 211 10ms 19 Aug 2022 347th InigoK 🇺🇸 419 214 18ms 22 Sep 2025 348th mathisfun271 417 215 10ms 12 Feb 2024 349th andrewjc2000 415 216 28ms 15 May 2025 350th coreynash 414 236 11ms 13 Feb 2024 350th CaedenHarper 🇨🇦 414 236 13ms 29 Aug 2025 352nd antimon2 🇯🇵 408 195 1,191ms 8 Mar 2024 353rd BREMAUCY 🇫🇷 406 221 17ms 22 Aug 2025 354th uttumuttu 🇫🇮 404 242 10ms 9 Apr 2022 355th pschmid0 🇺🇸 402 287 4ms 23 Oct 2022 356th janbehrens 🇩🇪 401 307 2,961ms 20 Nov 2022 357th guilhem-roy 🇫🇷 395 227 10ms 3 Mar 2022 358th scpchicken 🇵🇼 392 229 17ms 13 Oct 2023 359th Waffle3z 392 249 12ms 18 Sep 2021 360th janbehrens 🇩🇪 392 314 457ms 13 Sep 2022 361st olleicua 🇺🇸 391 250 10ms 21 Feb 2024 362nd stu303 385 233 9ms 20 Jul 2022 363rd davecame 380 236 17ms 19 Mar 2024 364th scpchicken 🇵🇼 379 206 3ms 24 Feb 2023 365th m42km 377 238 19ms 12 Nov 2023 366th annaproxy 375 309 408ms 20 Mar 2022 367th CaedenHarper 🇨🇦 374 240 10ms 10 Aug 2025 368th Xzyaihni 373 459 233ms 20 Oct 2022 369th h3ra993huskp 🇯🇵 372 352 463ms 30 Nov 2025 370th commandz0 🇺🇸 371 242 10ms 27 Sep 2023 371st m42km 368 226 651ms 4 Feb 2024 372nd alemelis 366 245 16ms 27 Aug 2024 372nd AstroOrbis 366 245 18ms 20 days ago 374th CaedenHarper 🇨🇦 364 228 675ms 19 Jan 2025 374th commandz0 🇺🇸 364 228 552ms 1 Sep 2025 376th janbehrens 🇩🇪 363 247 10ms 4 Dec 2024 377th janbehrens 🇩🇪 362 291 2ms 13 Sep 2022 378th Waffle3z 357 202 35ms 23 Sep 2021 379th rucin93 🇵🇱 355 234 603ms 21 Jan 2024 380th cros107 🇦🇺 352 255 10ms 28 Jan 2024 381st MostParsingVex 352 332 2,457ms 11 Nov 2024 382nd c0d3-4-F00d 🇩🇪 350 301 2ms 21 Mar 2022 383rd CedricGebistorf 349 257 16ms 3 Mar 2022 384th BambooleanLogic 🇸🇪 348 281 10ms 13 Jul 2023 385th DialFrost 🇸🇬 348 367 4ms 27 Sep 2024 386th te-chnical 345 260 23ms 18 Nov 2025 387th MarcMush 🇫🇷 344 261 16ms 14 Jan 2024 388th RYNO8 342 262 17ms 4 Sep 2023 389th ridingqwerty 🇺🇸 336 267 16ms 14 Feb 2024 390th msbranicky 336 454 272ms 31 Aug 2023 391st janbehrens 🇩🇪 335 237 633ms 4 Dec 2024 392nd FortuiteMan 🇫🇷 335 268 16ms 7 Jul 2025 393rd alemelis 334 249 672ms 23 Aug 2024 394th msbranicky 334 437 2ms 27 Aug 2023 395th MeWhenI 🇻🇦 323 531 210ms 18 Mar 2024 396th msbranicky 321 361 2ms 14 Oct 2023 397th MeWhenI 🇻🇦 321 582 119ms 18 Mar 2024 398th tomh1012 320 362 421ms 17 Dec 2025 399th IISResetMe 318 272 284ms 14 Jun 2024 400th nemoyatpeace 318 282 17ms 12 Jan 2026 First Prev 321–400 of 472 Next Last