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 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 ><> ALGOL 68 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 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 ><> ALGOL 68 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 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 Bytes Time Submitted 401st emgordon154 769 156 361ms 4 Mar 2025 402nd Kacarott 🇦🇺 766 100 9ms 3 Sep 2024 402nd Artemis21 🇬🇧 766 100 11ms 4 Jan 2025 404th dokutan 764 83 456ms 3 Sep 2024 404th lifthrasiir 🇰🇷 764 83 431ms 2 Dec 2024 404th albanian-laundromat 764 83 461ms 4 Aug 2025 404th CaedenHarper 🇨🇦 764 83 494ms 9 Aug 2025 408th CatsAreFluffy 763 64 49ms 4 Nov 2024 409th error256 762 116 122ms 2 Sep 2024 410th madex 🇩🇪 758 101 10ms 1 Sep 2024 410th RedzGoose 🇦🇺 758 101 10ms 15 Oct 2024 410th JunkIce 758 101 10ms 25 Oct 2024 413th kg583 🇺🇸 757 102 5ms 19 Dec 2025 414th Shanethegamer 🇺🇸 755 117 119ms 1 Sep 2024 415th sean-niemann 🇺🇸 755 118 3ms 16 Jan 2025 416th targrik 754 83 5ms 8 Feb 2025 417th stefangimmillaro 753 94 10ms 4 Sep 2024 418th DialFrost 🇸🇬 752 96 106ms 28 Nov 2025 418th snoozingnewt 🇨🇦 752 96 105ms 5 Dec 2025 420th sciencejiho 751 102 9ms 13 Sep 2024 420th Papushkado 751 102 10ms 10 Nov 2025 420th TheSecondComing123 751 102 10ms 18 days ago 423rd DialFrost 🇸🇬 751 225 1,591ms 20 Jan 2025 424th UnderKoen 🇳🇱 750 185 63ms 1 Dec 2025 425th error256 748 226 1,578ms 28 Mar 2025 426th Shanethegamer 🇺🇸 745 95 11ms 1 Sep 2024 426th HumanoidCPU 745 95 11ms 29 Oct 2024 428th Mikey-Beep 🇬🇧 745 119 430ms 2 Sep 2024 429th julian-hoelz 743 103 10ms 16 Sep 2024 429th StefanHabel 🇨🇦 743 103 94ms 22 Mar 2025 431st pardouin 🇫🇷 741 87 90ms 3 Sep 2024 431st Steffan153 🇫🇮 741 87 74ms 11 days ago 433rd MostParsingVex 741 164 70ms 6 Jan 2025 434th xsot 🇸🇬 739 58 1,009ms 19 Dec 2025 435th stefangimmillaro 739 169 43ms 3 Sep 2024 436th Shanethegamer 🇺🇸 737 71 233ms 1 Sep 2024 436th MarcMush 🇫🇷 737 71 536ms 16 Sep 2024 438th ComputerKWasTaken 🇺🇸 736 104 10ms 2 Sep 2024 438th elgan65536 🇺🇸 736 104 9ms 23 Sep 2024 438th NickTheEASDude 🇺🇸 736 104 10ms 7 Oct 2025 441st Shanethegamer 🇺🇸 735 105 4ms 1 Sep 2024 442nd FlyingPenguin223 734 94 1ms 18 Sep 2024 443rd DialFrost 🇸🇬 734 271 1,620ms 17 Jan 2026 444th GolfingSuccess 🇬🇷 733 30 55ms 1 Sep 2024 444th MeWhenI 🇻🇦 733 30 61ms 8 Jun 2025 444th CaedenHarper 🇨🇦 733 30 45ms 1 Dec 2025 447th error256 733 121 430ms 24 Sep 2024 448th snoozingnewt 🇨🇦 731 110 88ms 22 Nov 2025 449th targrik 730 97 12ms 8 Feb 2025 450th Shanethegamer 🇺🇸 729 122 6ms 4 Oct 2024 451st albanian-laundromat 728 232 1,614ms 15 Oct 2025 452nd emgordon154 726 63 1,252ms 18 Nov 2024 453rd bitsandbeyond 🇳🇱 726 64 273ms 1 Dec 2025 454th Shanethegamer 🇺🇸 726 95 2ms 2 Sep 2024 455th CutSandstone 722 106 12ms 21 Dec 2024 456th janAkali 🇷🇺 722 112 341ms 10 days ago 457th GrayJoKing 🇦🇺 720 86 119ms 2 Sep 2024 458th Shanethegamer 🇺🇸 720 128 473ms 1 Sep 2024 459th dokutan 719 124 2ms 5 Sep 2024 460th Kacarott 🇦🇺 717 132 3ms 4 Sep 2024 461st kg583 🇺🇸 716 106 6ms 26 Sep 2025 462nd galloj 🇨🇿 716 107 10ms 4 Sep 2024 462nd FlorianCassayre 🇫🇷 716 107 10ms 9 Sep 2024 462nd jared-hughes 716 107 10ms 10 Sep 2024 462nd nstearns96 🇬🇧 716 107 9ms 13 Nov 2024 462nd rchalamala 716 107 10ms 2 Jan 2025 462nd brochmann 🇸🇪 716 107 9ms 16 Oct 2025 468th mykytamatiukha 714 168 232ms 15 Jan 2026 469th snyderek 🇺🇸 712 150 50ms 15 Sep 2024 470th JesseNoEyes 🇺🇸 709 108 10ms 30 Sep 2024 471st alexsave 708 100 11ms 22 Sep 2024 472nd JDiLenarda 🇫🇷 708 170 1,518ms 3 Sep 2024 473rd error256 705 97 15ms 14 Jan 2026 474th HumanoidCPU 704 90 452ms 2 Sep 2024 475th adriweb 🇫🇷 704 98 2ms 4 Sep 2024 475th sean-niemann 🇺🇸 704 98 2ms 5 Sep 2024 475th dokutan 704 98 2ms 14 Sep 2024 478th Shanethegamer 🇺🇸 704 114 107ms 2 Sep 2024 479th MeWhenI 🇻🇦 703 88 130ms 1 Sep 2024 479th error256 703 88 125ms 10 Sep 2024 First Prev 401–480 of 750 Next Last