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 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 Apéry’s Constant Binary Lambda Calculus 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 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 ArkScript 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 ><> 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 ArkScript 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 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 Apéry’s Constant Binary Lambda Calculus 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 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 yzhs 🇩🇪 465 193 10ms 4 Jun 2022 322nd janbehrens 🇩🇪 465 286 18ms 13 Sep 2022 323rd yuchuehw 462 194 16ms 6 Jan 2024 324th CaedenHarper 🇨🇦 461 330 296ms 17 Nov 2025 325th MeWhenI 🇻🇦 460 268 432ms 4 Mar 2022 326th MeWhenI 🇻🇦 459 256 64ms 28 Feb 2024 327th janbehrens 🇩🇪 456 254 411ms 4 Dec 2024 328th nullie 453 198 10ms 14 Jun 2022 329th CaedenHarper 🇨🇦 451 218 1,344ms 2 Oct 2025 330th KatieLG 🇬🇧 448 161 37ms 2 Oct 2025 331st janbehrens 🇩🇪 448 218 10ms 4 Dec 2024 332nd elgan65536 🇺🇸 445 385 156ms 13 days ago 333rd jakobkordez 🇸🇮 438 205 17ms 30 Oct 2022 334th CaedenHarper 🇨🇦 438 299 397ms 7 Oct 2025 335th janbehrens 🇩🇪 435 301 463ms 4 Dec 2024 336th CatsAreFluffy 433 207 17ms 17 Feb 2024 337th Natanaelel 🇸🇪 432 737 20ms 19 Feb 2024 338th StefanHabel 🇨🇦 431 208 10ms 8 Apr 2024 339th CaedenHarper 🇨🇦 431 269 406ms 17 Oct 2025 340th rucin93 🇵🇱 430 196 150ms 5 Jan 2025 341st MeWhenI 🇻🇦 430 480 79ms 18 Mar 2024 342nd OllieBoyne 🇬🇧 425 211 10ms 19 Aug 2022 343rd InigoK 🇺🇸 419 214 18ms 22 Sep 2025 344th mathisfun271 417 215 10ms 12 Feb 2024 345th andrewjc2000 415 216 28ms 15 May 2025 346th coreynash 414 236 12ms 13 Feb 2024 346th CaedenHarper 🇨🇦 414 236 11ms 29 Aug 2025 348th antimon2 🇯🇵 408 195 1,191ms 8 Mar 2024 349th BREMAUCY 🇫🇷 406 221 17ms 22 Aug 2025 350th uttumuttu 🇫🇮 404 242 12ms 9 Apr 2022 351st pschmid0 🇺🇸 402 287 4ms 23 Oct 2022 352nd janbehrens 🇩🇪 401 307 2,491ms 20 Nov 2022 353rd guilhem-roy 🇫🇷 395 227 10ms 3 Mar 2022 354th scpchicken 🇵🇼 392 229 17ms 13 Oct 2023 355th Waffle3z 392 249 11ms 18 Sep 2021 356th janbehrens 🇩🇪 392 314 457ms 13 Sep 2022 357th olleicua 🇺🇸 391 250 11ms 21 Feb 2024 358th stu303 385 233 9ms 20 Jul 2022 359th davecame 380 236 17ms 19 Mar 2024 360th scpchicken 🇵🇼 379 206 2ms 24 Feb 2023 361st m42km 377 238 19ms 12 Nov 2023 362nd annaproxy 375 309 411ms 20 Mar 2022 363rd CaedenHarper 🇨🇦 374 240 10ms 10 Aug 2025 364th Xzyaihni 373 459 218ms 20 Oct 2022 365th h3ra993huskp 🇯🇵 372 352 463ms 30 Nov 2025 366th commandz0 🇺🇸 371 242 10ms 27 Sep 2023 367th m42km 368 226 651ms 4 Feb 2024 368th alemelis 366 245 16ms 27 Aug 2024 369th CaedenHarper 🇨🇦 364 228 675ms 19 Jan 2025 369th commandz0 🇺🇸 364 228 552ms 1 Sep 2025 371st janbehrens 🇩🇪 363 247 10ms 4 Dec 2024 372nd janbehrens 🇩🇪 362 291 2ms 13 Sep 2022 373rd Waffle3z 357 202 35ms 23 Sep 2021 374th rucin93 🇵🇱 355 234 603ms 21 Jan 2024 375th cros107 🇦🇺 352 255 10ms 28 Jan 2024 376th c0d3-4-F00d 🇩🇪 350 301 2ms 21 Mar 2022 377th CedricGebistorf 349 257 16ms 3 Mar 2022 378th MostParsingVex 349 332 2,457ms 11 Nov 2024 379th BambooleanLogic 🇸🇪 348 281 11ms 13 Jul 2023 380th DialFrost 🇸🇬 348 367 4ms 27 Sep 2024 381st te-chnical 345 260 23ms 18 Nov 2025 382nd MarcMush 🇫🇷 344 261 16ms 14 Jan 2024 383rd RYNO8 342 262 17ms 4 Sep 2023 384th ridingqwerty 🇺🇸 336 267 16ms 14 Feb 2024 385th janbehrens 🇩🇪 335 237 633ms 4 Dec 2024 386th FortuiteMan 🇫🇷 335 268 16ms 7 Jul 2025 387th msbranicky 335 454 277ms 31 Aug 2023 388th alemelis 334 249 672ms 23 Aug 2024 389th msbranicky 334 437 2ms 27 Aug 2023 390th MeWhenI 🇻🇦 323 531 201ms 18 Mar 2024 391st msbranicky 321 361 2ms 14 Oct 2023 392nd MeWhenI 🇻🇦 321 582 119ms 18 Mar 2024 393rd tomh1012 320 362 444ms 17 Dec 2025 394th IISResetMe 318 272 300ms 14 Jun 2024 395th nemoyatpeace 318 282 17ms 12 Jan 2026 396th zakariamouhid 316 309 10ms 8 Jun 2023 397th scpchicken 🇵🇼 315 224 154ms 25 Feb 2023 398th adamnielson42 🇺🇸 314 286 15ms 29 Nov 2023 399th dokutan 310 256 646ms 20 Apr 2025 400th knutae 🇳🇴 303 296 9ms 29 Oct 2021 First Prev 321–400 of 468 Next Last