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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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers Huffman Encoder NFA Simulator Nim 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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers Huffman Encoder NFA Simulator Nim 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 301st Seek64 🇩🇪 528 170 13ms 27 Nov 2025 302nd ovs-code 🇩🇪 526 151 800ms 10 Mar 2024 303rd lynn 526 158 524ms 17 Feb 2024 303rd AlephSquirrel 526 158 454ms 12 Jan 2025 305th edsrzf 🇳🇿 525 171 27ms 16 Dec 2025 306th DialFrost 🇸🇬 525 221 1ms 29 Jan 2024 307th emgordon154 523 161 133ms 18 Oct 2024 308th Salutations45 523 187 10ms 15 Oct 2025 309th bac0id 519 275 127ms 25 Jun 2024 310th emplv 🇱🇻 517 163 148ms 28 Mar 2025 311th prestosilver 🇺🇸 517 273 426ms 3 days ago 312th Natanaelel 🇸🇪 515 363 144ms 16 Jun 2025 313th retrohun 513 259 61ms 23 Nov 2022 314th blaztoma 🇱🇹 510 153 3ms 14 Dec 2025 315th bac0id 509 257 390ms 25 Jun 2024 316th prplz 🇦🇺 501 179 10ms 13 Jan 2024 317th lynn 500 96 43ms 3 Apr 2023 318th jared-hughes 499 180 17ms 9 Apr 2022 319th jerrandolph 499 306 368ms 25 Sep 2025 320th madex 🇩🇪 499 345 212ms 21 hours ago 321st MeWhenI 🇻🇦 490 172 136ms 5 Jan 2025 322nd Natanaelel 🇸🇪 489 142 37ms 18 Sep 2021 323rd janbehrens 🇩🇪 487 238 5ms 4 Dec 2024 324th jared-hughes 486 143 36ms 10 Sep 2022 325th alexsave 486 201 9ms 3 Jan 2026 326th vang1ong7ang 485 185 9ms 3 days ago 327th stefangimmillaro 473 147 39ms 12 May 2024 328th inventshah 472 190 17ms 12 Nov 2022 328th stefangimmillaro 472 190 27ms 8 Aug 2023 330th p-vf 🇨🇭 471 246 389ms 21 Nov 2021 331st yzhs 🇩🇪 465 193 10ms 4 Jun 2022 332nd janbehrens 🇩🇪 465 286 18ms 13 Sep 2022 333rd yuchuehw 463 194 18ms 6 Jan 2024 334th CaedenHarper 🇨🇦 463 330 360ms 17 Nov 2025 335th MeWhenI 🇻🇦 460 268 432ms 4 Mar 2022 336th MeWhenI 🇻🇦 459 256 64ms 28 Feb 2024 337th janbehrens 🇩🇪 456 254 408ms 4 Dec 2024 338th nullie 453 198 10ms 14 Jun 2022 339th madex 🇩🇪 452 233 2ms 21 Mar 2026 340th CaedenHarper 🇨🇦 451 218 929ms 2 Oct 2025 341st janbehrens 🇩🇪 448 218 11ms 4 Dec 2024 342nd elgan65536 🇺🇸 447 385 165ms 7 Feb 2026 343rd jakobkordez 🇸🇮 438 205 18ms 30 Oct 2022 344th CaedenHarper 🇨🇦 438 299 512ms 7 Oct 2025 345th janbehrens 🇩🇪 435 301 475ms 4 Dec 2024 346th CatsAreFluffy 434 207 18ms 17 Feb 2024 346th StefanHabel 🇨🇦 434 207 11ms 9 Mar 2026 348th Chinay-Domitrix 🇺🇸 433 271 2,798ms 14 Mar 2026 349th KatieLG 🇬🇧 432 161 38ms 2 Oct 2025 350th Natanaelel 🇸🇪 432 737 22ms 19 Feb 2024 351st CaedenHarper 🇨🇦 431 269 448ms 17 Oct 2025 352nd rucin93 🇵🇱 430 196 147ms 5 Jan 2025 353rd MeWhenI 🇻🇦 430 480 91ms 18 Mar 2024 354th scpchicken 🇵🇼 427 210 19ms 19 days ago 355th OllieBoyne 🇬🇧 425 211 10ms 19 Aug 2022 356th InigoK 🇺🇸 419 214 18ms 22 Sep 2025 357th mathisfun271 417 215 10ms 12 Feb 2024 358th andrewjc2000 415 216 29ms 15 May 2025 359th coreynash 414 236 10ms 13 Feb 2024 359th CaedenHarper 🇨🇦 414 236 12ms 29 Aug 2025 361st antimon2 🇯🇵 408 195 1,350ms 8 Mar 2024 362nd BREMAUCY 🇫🇷 406 221 19ms 22 Aug 2025 363rd uttumuttu 🇫🇮 404 242 10ms 9 Apr 2022 364th pschmid0 🇺🇸 404 287 5ms 23 Oct 2022 365th janbehrens 🇩🇪 401 307 2,867ms 20 Nov 2022 366th guilhem-roy 🇫🇷 395 227 10ms 3 Mar 2022 367th Waffle3z 392 249 9ms 18 Sep 2021 368th janbehrens 🇩🇪 392 314 451ms 13 Sep 2022 369th olleicua 🇺🇸 391 250 9ms 21 Feb 2024 370th madex 🇩🇪 387 303 2,567ms 21 Mar 2026 371st stu303 385 233 11ms 20 Jul 2022 372nd davecame 380 236 18ms 19 Mar 2024 373rd m42km 377 238 19ms 12 Nov 2023 373rd firegene 🇮🇪 377 238 17ms 30 Mar 2026 375th annaproxy 375 309 419ms 20 Mar 2022 376th Xzyaihni 375 459 230ms 20 Oct 2022 377th CaedenHarper 🇨🇦 374 240 11ms 10 Aug 2025 378th h3ra993huskp 🇯🇵 372 352 685ms 30 Nov 2025 379th commandz0 🇺🇸 371 242 10ms 27 Sep 2023 380th m42km 368 226 651ms 4 Feb 2024 381st MostParsingVex 368 319 2,630ms 10 days ago 382nd alemelis 366 245 18ms 27 Aug 2024 382nd AstroOrbis 366 245 20ms 22 Feb 2026 384th CaedenHarper 🇨🇦 364 228 671ms 19 Jan 2025 384th commandz0 🇺🇸 364 228 633ms 1 Sep 2025 386th janbehrens 🇩🇪 363 247 11ms 4 Dec 2024 387th janbehrens 🇩🇪 362 291 2ms 13 Sep 2022 388th aksyristos 358 251 20ms 26 Mar 2026 389th rucin93 🇵🇱 355 234 577ms 21 Jan 2024 390th cros107 🇦🇺 352 255 11ms 28 Jan 2024 391st c0d3-4-F00d 🇩🇪 350 301 2ms 21 Mar 2022 392nd CedricGebistorf 349 257 18ms 3 Mar 2022 393rd BambooleanLogic 🇸🇪 348 281 10ms 13 Jul 2023 394th DialFrost 🇸🇬 348 367 4ms 27 Sep 2024 395th te-chnical 345 260 24ms 18 Nov 2025 396th Waffle3z 344 202 37ms 23 Sep 2021 397th MarcMush 🇫🇷 344 261 17ms 14 Jan 2024 398th RYNO8 343 262 16ms 4 Sep 2023 399th ridingqwerty 🇺🇸 336 267 17ms 14 Feb 2024 400th msbranicky 336 454 324ms 31 Aug 2023 First Prev 301–400 of 481 Next Last