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 28 hours ago 334th janAkali 🇷🇺 452 310 404ms 4 mins ago 335th CaedenHarper 🇨🇦 451 218 1,344ms 2 Oct 2025 336th janbehrens 🇩🇪 448 218 9ms 4 Dec 2024 337th elgan65536 🇺🇸 445 385 161ms 7 Feb 2026 338th jakobkordez 🇸🇮 438 205 17ms 30 Oct 2022 339th CaedenHarper 🇨🇦 438 299 397ms 7 Oct 2025 340th janbehrens 🇩🇪 435 301 463ms 4 Dec 2024 341st CatsAreFluffy 433 207 17ms 17 Feb 2024 341st StefanHabel 🇨🇦 433 207 11ms 13 days ago 343rd Chinay-Domitrix 🇺🇸 433 271 2,849ms 7 days ago 344th KatieLG 🇬🇧 432 161 34ms 2 Oct 2025 345th Natanaelel 🇸🇪 432 737 20ms 19 Feb 2024 346th CaedenHarper 🇨🇦 431 269 401ms 17 Oct 2025 347th rucin93 🇵🇱 430 196 154ms 5 Jan 2025 348th MeWhenI 🇻🇦 430 480 91ms 18 Mar 2024 349th OllieBoyne 🇬🇧 425 211 10ms 19 Aug 2022 350th InigoK 🇺🇸 419 214 18ms 22 Sep 2025 351st mathisfun271 417 215 10ms 12 Feb 2024 352nd andrewjc2000 415 216 28ms 15 May 2025 353rd coreynash 414 236 9ms 13 Feb 2024 353rd CaedenHarper 🇨🇦 414 236 12ms 29 Aug 2025 355th antimon2 🇯🇵 408 195 1,191ms 8 Mar 2024 356th BREMAUCY 🇫🇷 406 221 17ms 22 Aug 2025 357th uttumuttu 🇫🇮 404 242 13ms 9 Apr 2022 358th pschmid0 🇺🇸 402 287 4ms 23 Oct 2022 359th janbehrens 🇩🇪 401 307 2,861ms 20 Nov 2022 360th guilhem-roy 🇫🇷 395 227 10ms 3 Mar 2022 361st scpchicken 🇵🇼 392 229 17ms 13 Oct 2023 362nd Waffle3z 392 249 13ms 18 Sep 2021 363rd janbehrens 🇩🇪 392 314 457ms 13 Sep 2022 364th olleicua 🇺🇸 391 250 11ms 21 Feb 2024 365th madex 🇩🇪 387 303 2,788ms 29 hours ago 366th stu303 385 233 9ms 20 Jul 2022 367th davecame 380 236 17ms 19 Mar 2024 368th scpchicken 🇵🇼 379 206 3ms 24 Feb 2023 369th m42km 377 238 19ms 12 Nov 2023 370th annaproxy 375 309 408ms 20 Mar 2022 371st CaedenHarper 🇨🇦 374 240 10ms 10 Aug 2025 372nd Xzyaihni 373 459 233ms 20 Oct 2022 373rd h3ra993huskp 🇯🇵 372 352 463ms 30 Nov 2025 374th commandz0 🇺🇸 371 242 10ms 27 Sep 2023 375th m42km 368 226 651ms 4 Feb 2024 376th alemelis 366 245 16ms 27 Aug 2024 376th AstroOrbis 366 245 18ms 27 days ago 378th CaedenHarper 🇨🇦 364 228 675ms 19 Jan 2025 378th commandz0 🇺🇸 364 228 552ms 1 Sep 2025 380th janbehrens 🇩🇪 363 247 10ms 4 Dec 2024 381st janbehrens 🇩🇪 362 291 2ms 13 Sep 2022 382nd rucin93 🇵🇱 355 234 603ms 21 Jan 2024 383rd MostParsingVex 354 332 2,965ms 11 Nov 2024 384th cros107 🇦🇺 352 255 10ms 28 Jan 2024 385th c0d3-4-F00d 🇩🇪 350 301 2ms 21 Mar 2022 386th CedricGebistorf 349 257 16ms 3 Mar 2022 387th BambooleanLogic 🇸🇪 348 281 9ms 13 Jul 2023 388th DialFrost 🇸🇬 348 367 4ms 27 Sep 2024 389th te-chnical 345 260 23ms 18 Nov 2025 390th Waffle3z 344 202 37ms 23 Sep 2021 391st MarcMush 🇫🇷 344 261 16ms 14 Jan 2024 392nd RYNO8 342 262 17ms 4 Sep 2023 393rd ridingqwerty 🇺🇸 336 267 16ms 14 Feb 2024 394th msbranicky 336 454 272ms 31 Aug 2023 395th janbehrens 🇩🇪 335 237 633ms 4 Dec 2024 396th FortuiteMan 🇫🇷 335 268 16ms 7 Jul 2025 397th madex 🇩🇪 335 292 9ms 29 hours ago 398th alemelis 334 249 672ms 23 Aug 2024 399th msbranicky 334 437 2ms 27 Aug 2023 400th madex 🇩🇪 329 273 16ms 29 hours ago First Prev 321–400 of 476 Next Last