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QR Decoder in all languages in bytes. 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 Bytes Time Submitted 201st MeWhenI 🇻🇦 739 192 103ms 28 Feb 2024 202nd dvargas46 🇺🇸 737 185 24ms 7 Apr 2023 203rd NewDefectus 🇮🇱 731 167 10ms 21 Sep 2021 204th emplv 🇱🇻 729 163 148ms 28 Mar 2025 205th SirBogman 🇺🇸 729 164 571ms 31 Jan 2024 206th primo-ppcg 🇹🇭 728 131 36ms 28 Sep 2021 207th prplz 🇦🇺 727 179 10ms 13 Jan 2024 208th ovs-code 🇩🇪 725 153 800ms 10 Mar 2024 209th jared-hughes 723 180 17ms 9 Apr 2022 209th kg583 🇺🇸 723 180 18ms 28 Feb 2026 211th GrayJoKing 🇦🇺 720 156 151ms 2 Oct 2021 212th MeWhenI 🇻🇦 719 272 1,759ms 13 days ago 213th edsrzf 🇳🇿 715 218 335ms 16 Dec 2025 214th MeWhenI 🇻🇦 713 219 5ms 13 Aug 2024 215th MostParsingVex 713 416 30ms 9 days ago 216th MeWhenI 🇻🇦 709 138 3ms 28 Feb 2024 217th inventshah 709 178 445ms 12 Nov 2022 218th MeWhenI 🇻🇦 708 220 333ms 28 Feb 2024 219th SirBogman 🇺🇸 704 163 279ms 31 Jan 2024 220th vang1ong7ang 🇦🇶 703 185 9ms 4 days ago 221st plcc0 699 186 17ms 20 Feb 2026 222nd inventshah 698 155 1ms 12 Nov 2022 223rd jared-hughes 692 180 1ms 9 Apr 2022 224th MeWhenI 🇻🇦 691 172 136ms 5 Jan 2025 225th pardouin 🇫🇷 687 176 2,694ms 20 May 2025 226th inventshah 685 190 17ms 12 Nov 2022 226th stefangimmillaro 685 190 27ms 8 Aug 2023 226th lifthrasiir 🇰🇷 685 190 18ms 16 Nov 2024 229th MeWhenI 🇻🇦 684 623 13ms 27 Jan 2025 230th CLOStrophobic 🇮🇹 683 283 6ms 3 Mar 2025 231st stefangimmillaro 680 229 328ms 18 Oct 2023 232nd MeWhenI 🇻🇦 679 176 1ms 28 Feb 2024 233rd primo-ppcg 🇹🇭 679 201 14ms 24 Jan 2022 234th NewDefectus 🇮🇱 676 160 1ms 28 Dec 2021 235th inventshah 675 174 1ms 12 Nov 2022 236th Flekay 🇩🇪 674 193 10ms 27 Mar 2026 237th KrausRaus 🇺🇸 671 182 11ms 30 Jun 2024 237th Lv0Sys 🇵🇱 671 182 10ms 28 Feb 2026 239th jared-hughes 667 143 36ms 10 Sep 2022 240th tayloia 🇬🇧 667 183 10ms 4 May 2023 241st snoozingnewt 🇨🇦 667 195 19ms 21 days ago 242nd MeWhenI 🇻🇦 666 418 14ms 17 Nov 2021 243rd stefangimmillaro 662 202 473ms 6 Oct 2025 244th MarcMush 🇫🇷 660 168 594ms 14 Jan 2024 245th duckyluuk 🇳🇱 660 197 21ms 23 Jun 2024 246th lifthrasiir 🇰🇷 657 182 512ms 2 Dec 2024 247th nullie 657 198 10ms 14 Jun 2022 247th emgordon154 657 198 10ms 16 Oct 2025 249th stefangimmillaro 655 181 395ms 6 Oct 2025 250th CornerMercury 🇬🇧 654 199 16ms 9 days ago 251st MeWhenI 🇻🇦 653 170 133ms 27 Mar 2026 252nd Salutations45 653 187 10ms 15 Oct 2025 253rd MeWhenI 🇻🇦 652 191 1ms 28 Feb 2024 254th stefangimmillaro 649 147 39ms 12 May 2024 255th emgordon154 648 241 6ms 29 Jun 2025 256th stefangimmillaro 647 255 138ms 24 Jul 2023 257th duckyluuk 🇳🇱 646 185 647ms 23 Jun 2024 257th snoozingnewt 🇨🇦 646 185 659ms 21 days ago 259th stefangimmillaro 644 227 107ms 3 Oct 2023 260th emgordon154 643 186 531ms 12 Apr 2025 261st stefangimmillaro 641 273 164ms 17 Nov 2023 262nd SirBogman 🇺🇸 640 149 41ms 31 Jan 2024 262nd tatzyr 🇯🇵 640 149 37ms 10 Mar 2025 264th blaztoma 🇱🇹 639 153 3ms 14 Dec 2025 265th orthoplex 🇨🇽 638 204 18ms 13 Oct 2021 266th jakobkordez 🇸🇮 635 205 18ms 30 Oct 2022 267th dcgjb 634 181 782ms 30 Jan 2024 268th AdrienHache 🇫🇷 631 188 500ms 25 Jul 2025 269th annaproxy 628 207 11ms 6 May 2022 269th StefanHabel 🇨🇦 628 207 11ms 9 Mar 2026 271st stefangimmillaro 627 159 1,302ms 20 Oct 2023 272nd targrik 621 192 5ms 8 days ago 273rd error256 621 329 7ms 29 Jul 2024 274th stefangimmillaro 620 195 2,497ms 12 Nov 2024 275th scpchicken 🇵🇼 619 210 19ms 20 days ago 276th DialFrost 🇸🇬 616 180 639ms 18 Jan 2024 277th OllieBoyne 🇬🇧 616 211 10ms 19 Aug 2022 278th annaproxy 616 309 129ms 4 Sep 2022 279th postie77 614 193 409ms 24 Mar 2023 280th Artemis21 🇬🇧 614 212 16ms 3 Jan 2025 281st voytxt 🇨🇿 613 199 10ms 27 days ago 282nd Lv0Sys 🇵🇱 613 254 343ms 28 Feb 2026 283rd InigoK 🇺🇸 608 214 18ms 22 Sep 2025 284th alexsave 607 201 9ms 3 Jan 2026 285th bac0id 607 208 456ms 25 Jun 2024 286th rucin93 🇵🇱 606 196 147ms 5 Jan 2025 287th mathisfun271 605 215 10ms 12 Feb 2024 287th anter69 🇭🇺 605 215 18ms 7 Jul 2025 289th TFeld00 🇩🇰 602 216 17ms 19 May 2022 289th andrewjc2000 602 216 29ms 15 May 2025 291st weliveinhell 🇭🇹 601 203 10ms 19 Jul 2024 291st helbling 🇨🇭 601 203 12ms 6 Sep 2024 293rd neel11235813 595 201 671ms 1 Apr 2024 294th ndren 594 219 28ms 22 Nov 2023 294th neel11235813 594 219 21ms 1 Apr 2024 296th DialFrost 🇸🇬 593 201 6ms 18 Jan 2024 297th DialFrost 🇸🇬 589 221 18ms 18 Jan 2024 297th BREMAUCY 🇫🇷 589 221 19ms 22 Aug 2025 299th KatieLG 🇬🇧 586 222 10ms 7 Jul 2024 300th bac0id 585 185 1ms 25 Jun 2024 First Prev 201–300 of 485 Next Last