PalindromemordnilaP 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 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 Bytes Time Submitted 561st Zhenyu-Bo 644 119 9ms 1 Aug 2025 561st tomh1012 644 119 11ms 2 Mar 2026 563rd Chinay-Domitrix 🇺🇸 643 97 2,560ms 18 days ago 564th BlankSpruce 642 140 2ms 1 Sep 2024 565th anter69 🇭🇺 641 66 34ms 25 Oct 2024 566th aDwarfNamedUrist 640 138 119ms 4 Sep 2024 567th lhulinsky 638 120 10ms 23 Oct 2024 567th arjunarya1 638 120 10ms 11 Sep 2025 569th stefangimmillaro 638 188 219ms 4 Jun 2025 570th SirBogman 🇺🇸 637 73 435ms 23 Jul 2025 571st Shanethegamer 🇺🇸 636 72 1,301ms 1 Sep 2024 571st anter69 🇭🇺 636 72 1,291ms 25 Oct 2024 573rd weeble 636 77 8ms 21 Dec 2025 574th Ripick 636 127 387ms 6 Sep 2024 575th dokutan 635 120 7ms 1 Sep 2024 575th Shanethegamer 🇺🇸 635 120 7ms 2 Sep 2024 577th KatieLG 🇬🇧 633 112 9ms 1 Sep 2024 577th CaedenHarper 🇨🇦 633 112 10ms 22 Aug 2025 579th olleicua 🇺🇸 632 67 40ms 6 Sep 2024 579th madex 🇩🇪 632 67 35ms 16 days ago 581st cthierfelder 🇲🇨 630 193 75ms 5 Sep 2025 582nd RedzGoose 🇦🇺 628 101 424ms 15 Oct 2024 583rd kevinnaviapaiva 628 122 10ms 16 Feb 2025 584th kmathis22 628 155 496ms 14 Dec 2025 585th BalaM314 627 113 10ms 4 Feb 2025 585th Program-Pi 627 113 10ms 26 Feb 2026 587th SirBogman 🇺🇸 626 59 143ms 23 Jul 2025 588th eddvrs 623 123 11ms 29 Sep 2024 589th Shanethegamer 🇺🇸 622 68 37ms 1 Sep 2024 589th emgordon154 622 68 37ms 1 Sep 2024 589th rvs314 622 68 39ms 24 Sep 2024 589th tatzyr 🇯🇵 622 68 40ms 10 Oct 2025 593rd DialFrost 🇸🇬 622 111 1ms 22 Nov 2024 594th albanian-laundromat 621 69 1,175ms 12 Sep 2025 595th KrausRaus 🇺🇸 621 114 11ms 1 Sep 2024 595th JOrE20 621 114 9ms 21 Feb 2026 597th yokasuretsu 618 124 10ms 10 Jul 2025 597th hamilton-bonds 618 124 10ms 24 Jul 2025 597th robin-scragg 618 124 10ms 18 Oct 2025 600th lifthrasiir 🇰🇷 618 227 46ms 11 Dec 2024 601st Andrey-Plotnikov 616 115 9ms 30 Sep 2025 602nd aliakseikalosha 616 144 391ms 5 Sep 2024 603rd KatieLG 🇬🇧 613 69 37ms 1 Sep 2024 604th Shanethegamer 🇺🇸 612 102 2,663ms 25 Oct 2024 604th dokutan 612 102 2,426ms 26 Oct 2024 606th Natanaelel 🇸🇪 611 112 14ms 15 May 2025 607th BambooleanLogic 🇸🇪 611 116 10ms 19 Nov 2024 607th acollett89 611 116 10ms 4 Aug 2025 609th msbranicky 608 86 182ms 16 Sep 2024 610th nhausspiegel 608 126 10ms 13 Sep 2024 611th CaedenHarper 🇨🇦 603 71 1,505ms 27 Sep 2025 612th matsagad 603 127 10ms 16 Jan 2025 613th Shanethegamer 🇺🇸 603 134 415ms 1 Sep 2024 614th dokutan 603 147 411ms 3 Nov 2024 615th dokutan 602 76 1,264ms 3 Sep 2024 616th Shanethegamer 🇺🇸 602 107 83ms 1 Sep 2024 617th Arkadios200 602 132 104ms 11 Oct 2025 618th mamamia5x 600 118 10ms 12 Sep 2024 619th inventshah 599 150 2ms 1 Sep 2024 620th xyangst 598 128 9ms 12 Oct 2024 620th 123mjb 598 128 9ms 19 Nov 2025 622nd mousetail 🇳🇱 597 105 5ms 3 Sep 2024 623rd emgordon154 597 128 12ms 11 days ago 624th h3ra993huskp 🇯🇵 597 163 741ms 30 Nov 2025 625th emgordon154 595 104 161ms 14 Nov 2024 626th CaedenHarper 🇨🇦 595 149 407ms 16 Oct 2025 627th MeWhenI 🇻🇦 595 177 40ms 4 Sep 2024 627th Shanethegamer 🇺🇸 595 177 45ms 4 Sep 2024 629th KatieLG 🇬🇧 594 77 1,342ms 1 Sep 2024 630th BREMAUCY 🇫🇷 594 316 12ms 7 Aug 2025 631st KatieLG 🇬🇧 589 135 96ms 21 Nov 2025 632nd luuumine 🇫🇷 588 204 209ms 18 Nov 2025 633rd DialFrost 🇸🇬 586 107 6ms 1 Sep 2024 634th cbrt-x 585 151 121ms 11 Sep 2024 635th Mabeloid 🇳🇴 582 109 490ms 17 Sep 2024 636th dokutan 582 181 41ms 1 Sep 2024 637th snoozingnewt 🇨🇦 582 226 281ms 1 Sep 2024 638th GeorgeStechman 🇬🇧 581 122 10ms 5 Nov 2024 638th gigaprofisi 🇺🇸 581 122 9ms 10 Aug 2025 640th muser-logiccpu 🇺🇦 580 119 2ms 23 Jul 2025 First Prev 561–640 of 771 Next Last