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 Gray Code Decoder Gray Code Encoder 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 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 Gray Code Decoder Gray Code Encoder 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 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 jared-hughes 486 143 37ms 10 Sep 2022 322nd alexsave 486 201 9ms 3 Jan 2026 323rd janbehrens 🇩🇪 485 238 5ms 4 Dec 2024 324th vang1ong7ang 478 361 154ms 42 hours ago 325th stefangimmillaro 473 147 38ms 12 May 2024 326th inventshah 472 190 17ms 12 Nov 2022 326th stefangimmillaro 472 190 24ms 8 Aug 2023 328th p-vf 🇨🇭 471 246 385ms 21 Nov 2021 329th yzhs 🇩🇪 465 193 10ms 4 Jun 2022 330th janbehrens 🇩🇪 465 286 18ms 13 Sep 2022 331st yuchuehw 463 194 16ms 6 Jan 2024 332nd CaedenHarper 🇨🇦 463 330 289ms 17 Nov 2025 333rd MeWhenI 🇻🇦 460 268 432ms 4 Mar 2022 334th MeWhenI 🇻🇦 459 256 64ms 28 Feb 2024 335th janbehrens 🇩🇪 456 254 386ms 4 Dec 2024 336th nullie 453 198 10ms 14 Jun 2022 337th madex 🇩🇪 452 233 2ms 15 days ago 338th CaedenHarper 🇨🇦 451 218 1,265ms 2 Oct 2025 339th janbehrens 🇩🇪 448 218 9ms 4 Dec 2024 340th elgan65536 🇺🇸 448 385 157ms 7 Feb 2026 341st jakobkordez 🇸🇮 438 205 17ms 30 Oct 2022 342nd CaedenHarper 🇨🇦 438 299 397ms 7 Oct 2025 343rd janbehrens 🇩🇪 435 301 463ms 4 Dec 2024 344th CatsAreFluffy 434 207 17ms 17 Feb 2024 344th StefanHabel 🇨🇦 434 207 11ms 27 days ago 346th Chinay-Domitrix 🇺🇸 433 271 2,849ms 21 days ago 347th KatieLG 🇬🇧 432 161 34ms 2 Oct 2025 348th Natanaelel 🇸🇪 432 737 20ms 19 Feb 2024 349th CaedenHarper 🇨🇦 431 269 401ms 17 Oct 2025 350th rucin93 🇵🇱 430 196 154ms 5 Jan 2025 351st MeWhenI 🇻🇦 430 480 91ms 18 Mar 2024 352nd OllieBoyne 🇬🇧 425 211 10ms 19 Aug 2022 353rd InigoK 🇺🇸 419 214 18ms 22 Sep 2025 354th mathisfun271 417 215 10ms 12 Feb 2024 355th andrewjc2000 415 216 28ms 15 May 2025 356th coreynash 414 236 9ms 13 Feb 2024 356th CaedenHarper 🇨🇦 414 236 11ms 29 Aug 2025 358th antimon2 🇯🇵 408 195 1,191ms 8 Mar 2024 359th BREMAUCY 🇫🇷 406 221 17ms 22 Aug 2025 360th uttumuttu 🇫🇮 404 242 9ms 9 Apr 2022 361st pschmid0 🇺🇸 402 287 4ms 23 Oct 2022 362nd janbehrens 🇩🇪 401 307 2,867ms 20 Nov 2022 363rd guilhem-roy 🇫🇷 395 227 10ms 3 Mar 2022 364th scpchicken 🇵🇼 392 229 17ms 13 Oct 2023 365th Waffle3z 392 249 9ms 18 Sep 2021 366th janbehrens 🇩🇪 392 314 457ms 13 Sep 2022 367th olleicua 🇺🇸 391 250 10ms 21 Feb 2024 368th madex 🇩🇪 387 303 2,788ms 15 days ago 369th stu303 385 233 9ms 20 Jul 2022 370th davecame 380 236 17ms 19 Mar 2024 371st scpchicken 🇵🇼 379 206 4ms 24 Feb 2023 372nd m42km 377 238 19ms 12 Nov 2023 372nd firegene 🇮🇪 377 238 16ms 6 days ago 374th Xzyaihni 376 459 224ms 20 Oct 2022 375th annaproxy 375 309 408ms 20 Mar 2022 376th CaedenHarper 🇨🇦 374 240 10ms 10 Aug 2025 377th h3ra993huskp 🇯🇵 372 352 463ms 30 Nov 2025 378th commandz0 🇺🇸 371 242 10ms 27 Sep 2023 379th m42km 368 226 651ms 4 Feb 2024 380th alemelis 366 245 16ms 27 Aug 2024 380th AstroOrbis 366 245 18ms 22 Feb 2026 382nd CaedenHarper 🇨🇦 364 228 675ms 19 Jan 2025 382nd commandz0 🇺🇸 364 228 552ms 1 Sep 2025 384th janbehrens 🇩🇪 363 247 10ms 4 Dec 2024 385th janbehrens 🇩🇪 362 291 2ms 13 Sep 2022 386th aksyristos 358 251 17ms 10 days ago 387th rucin93 🇵🇱 355 234 603ms 21 Jan 2024 388th MostParsingVex 354 332 2,800ms 11 Nov 2024 389th cros107 🇦🇺 352 255 10ms 28 Jan 2024 390th c0d3-4-F00d 🇩🇪 350 301 2ms 21 Mar 2022 391st CedricGebistorf 349 257 16ms 3 Mar 2022 392nd BambooleanLogic 🇸🇪 348 281 11ms 13 Jul 2023 393rd DialFrost 🇸🇬 348 367 4ms 27 Sep 2024 394th te-chnical 345 260 23ms 18 Nov 2025 395th Waffle3z 344 202 37ms 23 Sep 2021 396th MarcMush 🇫🇷 344 261 16ms 14 Jan 2024 397th RYNO8 343 262 17ms 4 Sep 2023 398th ridingqwerty 🇺🇸 336 267 16ms 14 Feb 2024 399th msbranicky 336 454 272ms 31 Aug 2023 400th janbehrens 🇩🇪 335 237 633ms 4 Dec 2024 First Prev 321–400 of 480 Next Last