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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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input 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 ><> 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input 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 CaedenHarper 🇨🇦 461 330 268ms 17 Nov 2025 322nd MeWhenI 🇻🇦 460 268 483ms 4 Mar 2022 323rd MeWhenI 🇻🇦 459 256 71ms 28 Feb 2024 324th janbehrens 🇩🇪 456 254 364ms 4 Dec 2024 325th nullie 453 198 9ms 14 Jun 2022 326th CaedenHarper 🇨🇦 451 218 846ms 2 Oct 2025 327th janbehrens 🇩🇪 448 218 9ms 4 Dec 2024 328th KatieLG 🇬🇧 447 161 34ms 2 Oct 2025 329th elgan65536 443 387 158ms 10 Apr 2024 330th CaedenHarper 🇨🇦 438 299 552ms 7 Oct 2025 331st jakobkordez 🇸🇮 437 205 17ms 30 Oct 2022 332nd janbehrens 🇩🇪 435 301 464ms 4 Dec 2024 333rd CatsAreFluffy 433 207 17ms 17 Feb 2024 334th Natanaelel 🇸🇪 432 737 20ms 19 Feb 2024 335th StefanHabel 🇨🇦 431 208 11ms 8 Apr 2024 336th CaedenHarper 🇨🇦 431 269 372ms 17 Oct 2025 337th rucin93 🇵🇱 430 196 141ms 5 Jan 2025 338th MeWhenI 🇻🇦 430 480 80ms 18 Mar 2024 339th OllieBoyne 🇬🇧 425 211 10ms 19 Aug 2022 340th InigoK 🇺🇸 419 214 16ms 22 Sep 2025 341st mathisfun271 417 215 9ms 12 Feb 2024 342nd andrewjc2000 415 216 27ms 15 May 2025 343rd coreynash 414 236 9ms 13 Feb 2024 343rd CaedenHarper 🇨🇦 414 236 11ms 29 Aug 2025 345th antimon2 🇯🇵 408 195 1,359ms 8 Mar 2024 346th BREMAUCY 🇫🇷 406 221 16ms 22 Aug 2025 347th uttumuttu 🇫🇮 403 242 9ms 9 Apr 2022 348th pschmid0 🇺🇸 402 287 5ms 23 Oct 2022 349th janbehrens 🇩🇪 401 307 2,502ms 20 Nov 2022 350th guilhem-roy 🇫🇷 395 227 11ms 3 Mar 2022 351st scpchicken 🇵🇼 392 229 19ms 13 Oct 2023 352nd Waffle3z 392 249 8ms 18 Sep 2021 353rd janbehrens 🇩🇪 392 314 457ms 13 Sep 2022 354th olleicua 🇺🇸 390 250 9ms 21 Feb 2024 355th stu303 385 233 10ms 20 Jul 2022 356th davecame 380 236 16ms 19 Mar 2024 357th scpchicken 🇵🇼 379 206 2ms 24 Feb 2023 358th m42km 377 238 18ms 12 Nov 2023 359th annaproxy 375 309 344ms 20 Mar 2022 360th CaedenHarper 🇨🇦 374 240 11ms 10 Aug 2025 361st Xzyaihni 373 459 229ms 20 Oct 2022 362nd h3ra993huskp 🇯🇵 372 352 457ms 24 days ago 363rd commandblockguy 🇺🇸 371 242 10ms 27 Sep 2023 364th m42km 368 226 1,124ms 4 Feb 2024 365th alemelis 366 245 16ms 27 Aug 2024 366th CaedenHarper 🇨🇦 364 228 670ms 19 Jan 2025 366th commandblockguy 🇺🇸 364 228 827ms 1 Sep 2025 368th janbehrens 🇩🇪 363 247 10ms 4 Dec 2024 369th janbehrens 🇩🇪 362 291 2ms 13 Sep 2022 370th Waffle3z 356 202 37ms 23 Sep 2021 371st rucin93 🇵🇱 355 234 1,030ms 21 Jan 2024 372nd cros107 🇦🇺 352 255 10ms 28 Jan 2024 373rd c0d3-4-F00d 🇩🇪 350 301 2ms 21 Mar 2022 374th CedricGebistorf 349 257 16ms 3 Mar 2022 375th MostParsingVex 349 332 4,068ms 11 Nov 2024 376th DialFrost 🇸🇬 348 367 4ms 27 Sep 2024 377th BambooleanLogic 🇸🇪 347 281 9ms 13 Jul 2023 378th te-chnical 345 260 22ms 18 Nov 2025 379th MarcMush 🇫🇷 344 261 16ms 14 Jan 2024 380th RYNO8 342 262 17ms 4 Sep 2023 381st ridingqwerty 🇺🇸 336 267 16ms 14 Feb 2024 382nd janbehrens 🇩🇪 335 237 652ms 4 Dec 2024 383rd FortuiteMan 🇫🇷 335 268 16ms 7 Jul 2025 384th msbranicky 335 454 269ms 31 Aug 2023 385th alemelis 334 249 795ms 23 Aug 2024 386th msbranicky 334 437 2ms 27 Aug 2023 387th MeWhenI 🇻🇦 323 531 216ms 18 Mar 2024 388th msbranicky 321 361 2ms 14 Oct 2023 389th MeWhenI 🇻🇦 321 582 119ms 18 Mar 2024 390th tomh1012 320 362 393ms 6 days ago 391st IISResetMe 318 272 275ms 14 Jun 2024 392nd zakariamouhid 316 309 9ms 8 Jun 2023 393rd scpchicken 🇵🇼 315 224 178ms 25 Feb 2023 394th adamnielson42 🇺🇸 314 286 14ms 29 Nov 2023 395th dokutan 310 256 612ms 20 Apr 2025 396th knutae 🇳🇴 303 296 9ms 29 Oct 2021 397th msbranicky 289 310 16ms 12 Aug 2023 398th JDiLenarda 🇫🇷 287 543 1,344ms 24 Nov 2023 399th Lv0Sys 🇵🇱 285 342 8ms 18 days ago 400th raspofabs 281 319 19ms 12 Nov 2023 First Prev 321–400 of 462 Next Last