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 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 NFA Simulator 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 NFA Simulator 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 Bytes Time Submitted 376th AlephSquirrel 772 248 3ms 29 Sep 2024 377th error256 769 139 419ms 24 Sep 2024 378th emgordon154 767 156 352ms 4 Mar 2025 379th Kacarott 🇦🇺 765 100 14ms 3 Sep 2024 379th Artemis21 🇬🇧 765 100 14ms 4 Jan 2025 381st CatsAreFluffy 763 64 52ms 4 Nov 2024 382nd dokutan 763 83 480ms 3 Sep 2024 382nd lifthrasiir 🇰🇷 763 83 453ms 2 Dec 2024 382nd albanian-laundromat 763 83 481ms 4 Aug 2025 382nd CaedenHarper 🇨🇦 763 83 516ms 9 Aug 2025 386th error256 759 116 110ms 2 Sep 2024 387th madex 🇩🇪 757 101 14ms 1 Sep 2024 387th RedzGoose 🇦🇺 757 101 14ms 15 Oct 2024 387th JunkIce 757 101 13ms 25 Oct 2024 387th Flekay 🇩🇪 757 101 13ms 10 Jul 2025 391st sean-niemann 🇺🇸 755 118 2ms 16 Jan 2025 392nd stefangimmillaro 753 94 8ms 4 Sep 2024 393rd targrik 752 83 4ms 8 Feb 2025 394th Shanethegamer 🇺🇸 752 117 117ms 1 Sep 2024 395th DialFrost 🇸🇬 751 225 398ms 20 Jan 2025 396th CaedenHarper 🇨🇦 750 71 680ms 27 Sep 2025 397th sciencejiho 750 102 14ms 13 Sep 2024 397th Papushkado 750 102 14ms 23 days ago 399th UnderKoen 🇳🇱 750 185 44ms 43 hours ago 400th Shanethegamer 🇺🇸 749 122 6ms 4 Oct 2024 401st error256 748 226 403ms 28 Mar 2025 402nd DialFrost 🇸🇬 746 96 94ms 5 days ago 403rd Shanethegamer 🇺🇸 745 95 9ms 1 Sep 2024 403rd HumanoidCPU 745 95 8ms 29 Oct 2024 405th Mikey-Beep 🇬🇧 743 119 354ms 2 Sep 2024 406th julian-hoelz 742 103 13ms 16 Sep 2024 406th StefanHabel 🇨🇦 742 103 145ms 22 Mar 2025 408th stefangimmillaro 739 169 44ms 3 Sep 2024 409th pardouin 🇫🇷 736 87 85ms 3 Sep 2024 410th Shanethegamer 🇺🇸 735 71 249ms 1 Sep 2024 410th MarcMush 🇫🇷 735 71 459ms 16 Sep 2024 412th ComputerKWasTaken 🇺🇸 735 104 13ms 2 Sep 2024 412th elgan65536 735 104 13ms 23 Sep 2024 412th NickTheEASDude 🇺🇸 735 104 11ms 7 Oct 2025 415th FlyingPenguin223 734 94 1ms 18 Sep 2024 416th MostParsingVex 734 164 61ms 6 Jan 2025 417th GolfingSuccess 🇬🇷 733 30 49ms 1 Sep 2024 417th MeWhenI 🇻🇦 733 30 58ms 8 Jun 2025 417th CaedenHarper 🇨🇦 733 30 40ms 42 hours ago 420th snoozingnewt 🇺🇸 731 110 75ms 10 days ago 421st targrik 730 97 8ms 8 Feb 2025 422nd error256 730 121 344ms 24 Sep 2024 423rd albanian-laundromat 728 232 409ms 15 Oct 2025 424th bitsandbeyond 🇳🇱 726 64 237ms 2 days ago 425th Shanethegamer 🇺🇸 726 95 1ms 2 Sep 2024 426th emgordon154 725 63 854ms 18 Nov 2024 427th Lv0Sys 🇵🇱 722 98 8ms 16 Jun 2025 428th CutSandstone 721 106 17ms 21 Dec 2024 429th GrayJoKing 🇦🇺 720 86 125ms 2 Sep 2024 430th Shanethegamer 🇺🇸 720 128 377ms 1 Sep 2024 431st dokutan 719 124 2ms 5 Sep 2024 432nd Kacarott 🇦🇺 717 132 3ms 4 Sep 2024 433rd kg583 🇺🇸 716 106 5ms 26 Sep 2025 434th galloj 🇨🇿 715 107 13ms 4 Sep 2024 434th FlorianCassayre 🇫🇷 715 107 12ms 9 Sep 2024 434th jared-hughes 715 107 14ms 10 Sep 2024 434th nstearns96 🇬🇧 715 107 12ms 13 Nov 2024 434th rchalamala 715 107 14ms 2 Jan 2025 434th brochmann 🇸🇪 715 107 11ms 16 Oct 2025 440th snyderek 🇺🇸 712 150 54ms 15 Sep 2024 441st dokutan 710 75 686ms 29 Aug 2025 442nd alexsave 708 100 8ms 22 Sep 2024 443rd JesseNoEyes 🇺🇸 708 108 13ms 30 Sep 2024 444th JDiLenarda 🇫🇷 708 170 1,251ms 3 Sep 2024 445th HumanoidCPU 704 90 432ms 2 Sep 2024 446th adriweb 🇫🇷 704 98 1ms 4 Sep 2024 446th sean-niemann 🇺🇸 704 98 1ms 5 Sep 2024 446th dokutan 704 98 2ms 14 Sep 2024 449th Shanethegamer 🇺🇸 704 114 102ms 2 Sep 2024 450th MeWhenI 🇻🇦 703 88 128ms 1 Sep 2024 First Prev 376–450 of 699 Next Last