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 Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript 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 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 ArkScript 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 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 Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 321st stefangimmillaro 473 147 38ms 12 May 2024 322nd inventshah 472 190 17ms 12 Nov 2022 322nd stefangimmillaro 472 190 24ms 8 Aug 2023 324th p-vf 🇨🇭 471 246 385ms 21 Nov 2021 325th yzhs 🇩🇪 465 193 10ms 4 Jun 2022 326th janbehrens 🇩🇪 465 286 18ms 13 Sep 2022 327th CaedenHarper 🇨🇦 463 330 289ms 17 Nov 2025 328th yuchuehw 462 194 16ms 6 Jan 2024 329th MeWhenI 🇻🇦 460 268 432ms 4 Mar 2022 330th MeWhenI 🇻🇦 459 256 64ms 28 Feb 2024 331st janbehrens 🇩🇪 456 254 386ms 4 Dec 2024 332nd nullie 453 198 10ms 14 Jun 2022 333rd madex 🇩🇪 452 233 2ms 12 hours ago 334th CaedenHarper 🇨🇦 451 218 1,344ms 2 Oct 2025 335th janbehrens 🇩🇪 448 218 9ms 4 Dec 2024 336th elgan65536 🇺🇸 445 385 161ms 7 Feb 2026 337th jakobkordez 🇸🇮 438 205 17ms 30 Oct 2022 338th CaedenHarper 🇨🇦 438 299 397ms 7 Oct 2025 339th janbehrens 🇩🇪 435 301 463ms 4 Dec 2024 340th CatsAreFluffy 433 207 17ms 17 Feb 2024 340th StefanHabel 🇨🇦 433 207 11ms 12 days ago 342nd Chinay-Domitrix 🇺🇸 433 271 2,849ms 6 days ago 343rd KatieLG 🇬🇧 432 161 34ms 2 Oct 2025 344th Natanaelel 🇸🇪 432 737 20ms 19 Feb 2024 345th CaedenHarper 🇨🇦 431 269 401ms 17 Oct 2025 346th rucin93 🇵🇱 430 196 154ms 5 Jan 2025 347th MeWhenI 🇻🇦 430 480 91ms 18 Mar 2024 348th OllieBoyne 🇬🇧 425 211 10ms 19 Aug 2022 349th InigoK 🇺🇸 419 214 18ms 22 Sep 2025 350th mathisfun271 417 215 10ms 12 Feb 2024 351st andrewjc2000 415 216 28ms 15 May 2025 352nd coreynash 414 236 9ms 13 Feb 2024 352nd CaedenHarper 🇨🇦 414 236 12ms 29 Aug 2025 354th antimon2 🇯🇵 408 195 1,191ms 8 Mar 2024 355th BREMAUCY 🇫🇷 406 221 17ms 22 Aug 2025 356th uttumuttu 🇫🇮 404 242 13ms 9 Apr 2022 357th pschmid0 🇺🇸 402 287 4ms 23 Oct 2022 358th janbehrens 🇩🇪 401 307 2,861ms 20 Nov 2022 359th guilhem-roy 🇫🇷 395 227 10ms 3 Mar 2022 360th scpchicken 🇵🇼 392 229 17ms 13 Oct 2023 361st Waffle3z 392 249 13ms 18 Sep 2021 362nd janbehrens 🇩🇪 392 314 457ms 13 Sep 2022 363rd olleicua 🇺🇸 391 250 11ms 21 Feb 2024 364th madex 🇩🇪 387 303 2,788ms 12 hours ago 365th stu303 385 233 9ms 20 Jul 2022 366th davecame 380 236 17ms 19 Mar 2024 367th scpchicken 🇵🇼 379 206 3ms 24 Feb 2023 368th m42km 377 238 19ms 12 Nov 2023 369th annaproxy 375 309 408ms 20 Mar 2022 370th CaedenHarper 🇨🇦 374 240 10ms 10 Aug 2025 371st Xzyaihni 373 459 233ms 20 Oct 2022 372nd h3ra993huskp 🇯🇵 372 352 463ms 30 Nov 2025 373rd commandz0 🇺🇸 371 242 10ms 27 Sep 2023 374th m42km 368 226 651ms 4 Feb 2024 375th alemelis 366 245 16ms 27 Aug 2024 375th AstroOrbis 366 245 18ms 27 days ago 377th CaedenHarper 🇨🇦 364 228 675ms 19 Jan 2025 377th commandz0 🇺🇸 364 228 552ms 1 Sep 2025 379th janbehrens 🇩🇪 363 247 10ms 4 Dec 2024 380th janbehrens 🇩🇪 362 291 2ms 13 Sep 2022 381st rucin93 🇵🇱 355 234 603ms 21 Jan 2024 382nd MostParsingVex 354 332 2,965ms 11 Nov 2024 383rd cros107 🇦🇺 352 255 10ms 28 Jan 2024 384th c0d3-4-F00d 🇩🇪 350 301 2ms 21 Mar 2022 385th CedricGebistorf 349 257 16ms 3 Mar 2022 386th BambooleanLogic 🇸🇪 348 281 9ms 13 Jul 2023 387th DialFrost 🇸🇬 348 367 4ms 27 Sep 2024 388th te-chnical 345 260 23ms 18 Nov 2025 389th Waffle3z 344 202 37ms 23 Sep 2021 390th MarcMush 🇫🇷 344 261 16ms 14 Jan 2024 391st RYNO8 342 262 17ms 4 Sep 2023 392nd ridingqwerty 🇺🇸 336 267 16ms 14 Feb 2024 393rd msbranicky 336 454 272ms 31 Aug 2023 394th janbehrens 🇩🇪 335 237 633ms 4 Dec 2024 395th FortuiteMan 🇫🇷 335 268 16ms 7 Jul 2025 396th madex 🇩🇪 335 292 9ms 12 hours ago 397th alemelis 334 249 672ms 23 Aug 2024 398th msbranicky 334 437 2ms 27 Aug 2023 399th madex 🇩🇪 329 273 16ms 12 hours ago 400th MeWhenI 🇻🇦 323 531 210ms 18 Mar 2024 First Prev 321–400 of 475 Next Last