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 Waffle3z 645 107 2ms 2 Oct 2024 562nd stefangimmillaro 645 151 494ms 6 Oct 2025 563rd mrxz 🇳🇱 644 110 10ms 22 Sep 2024 563rd weliveinhell 🇭🇹 644 110 9ms 28 Sep 2024 565th Zhenyu-Bo 644 119 10ms 1 Aug 2025 565th tomh1012 644 119 10ms 2 Mar 2026 567th Chinay-Domitrix 🇺🇸 643 97 2,358ms 26 days ago 568th BlankSpruce 642 140 2ms 1 Sep 2024 569th anter69 🇭🇺 641 66 34ms 25 Oct 2024 570th aDwarfNamedUrist 640 138 119ms 4 Sep 2024 571st stefangimmillaro 640 188 215ms 4 Jun 2025 572nd lhulinsky 638 120 13ms 23 Oct 2024 572nd arjunarya1 638 120 10ms 11 Sep 2025 574th SirBogman 🇺🇸 637 73 357ms 23 Jul 2025 575th Shanethegamer 🇺🇸 636 72 1,301ms 1 Sep 2024 575th anter69 🇭🇺 636 72 1,291ms 25 Oct 2024 577th weeble 636 77 8ms 21 Dec 2025 578th Ripick 636 127 387ms 6 Sep 2024 579th dokutan 635 120 6ms 1 Sep 2024 579th Shanethegamer 🇺🇸 635 120 7ms 2 Sep 2024 581st KatieLG 🇬🇧 633 112 9ms 1 Sep 2024 581st CaedenHarper 🇨🇦 633 112 10ms 22 Aug 2025 583rd olleicua 🇺🇸 632 67 40ms 6 Sep 2024 583rd madex 🇩🇪 632 67 35ms 24 days ago 585th cthierfelder 🇲🇨 630 193 75ms 5 Sep 2025 586th RedzGoose 🇦🇺 629 101 402ms 15 Oct 2024 587th kevinnaviapaiva 628 122 10ms 16 Feb 2025 588th kmathis22 628 155 496ms 14 Dec 2025 589th BalaM314 627 113 9ms 4 Feb 2025 589th Program-Pi 627 113 9ms 26 Feb 2026 591st SirBogman 🇺🇸 626 59 140ms 23 Jul 2025 592nd eddvrs 623 123 10ms 29 Sep 2024 593rd Shanethegamer 🇺🇸 622 68 37ms 1 Sep 2024 593rd emgordon154 622 68 37ms 1 Sep 2024 593rd rvs314 622 68 39ms 24 Sep 2024 593rd tatzyr 🇯🇵 622 68 39ms 10 Oct 2025 597th DialFrost 🇸🇬 622 111 1ms 22 Nov 2024 598th albanian-laundromat 🇺🇸 621 69 1,133ms 12 Sep 2025 599th KrausRaus 🇺🇸 621 114 12ms 1 Sep 2024 599th JOrE20 621 114 10ms 21 Feb 2026 601st yokasuretsu 618 124 10ms 10 Jul 2025 601st hamilton-bonds 618 124 10ms 24 Jul 2025 601st robin-scragg 618 124 14ms 18 Oct 2025 604th lifthrasiir 🇰🇷 618 227 46ms 11 Dec 2024 605th Andrey-Plotnikov 616 115 9ms 30 Sep 2025 606th aliakseikalosha 616 144 391ms 5 Sep 2024 607th KatieLG 🇬🇧 613 69 37ms 1 Sep 2024 608th Shanethegamer 🇺🇸 612 102 2,369ms 25 Oct 2024 608th dokutan 612 102 2,426ms 26 Oct 2024 610th Natanaelel 🇸🇪 611 112 14ms 15 May 2025 611th BambooleanLogic 🇸🇪 611 116 10ms 19 Nov 2024 611th acollett89 611 116 11ms 4 Aug 2025 613th msbranicky 608 86 182ms 16 Sep 2024 614th nhausspiegel 608 126 13ms 13 Sep 2024 615th CaedenHarper 🇨🇦 603 71 1,262ms 27 Sep 2025 616th matsagad 603 127 10ms 16 Jan 2025 617th Shanethegamer 🇺🇸 603 134 415ms 1 Sep 2024 618th dokutan 603 147 411ms 3 Nov 2024 619th dokutan 602 76 1,264ms 3 Sep 2024 620th Shanethegamer 🇺🇸 602 107 83ms 1 Sep 2024 621st Arkadios200 602 132 104ms 11 Oct 2025 622nd mamamia5x 600 118 10ms 12 Sep 2024 623rd inventshah 599 150 2ms 1 Sep 2024 624th xyangst 598 128 11ms 12 Oct 2024 624th 123mjb 598 128 10ms 19 Nov 2025 626th mousetail 🇳🇱 597 105 5ms 3 Sep 2024 627th emgordon154 597 128 12ms 19 days ago 628th h3ra993huskp 🇯🇵 597 163 569ms 30 Nov 2025 629th emgordon154 595 104 160ms 14 Nov 2024 630th CaedenHarper 🇨🇦 595 149 407ms 16 Oct 2025 631st MeWhenI 🇻🇦 595 177 40ms 4 Sep 2024 631st Shanethegamer 🇺🇸 595 177 44ms 4 Sep 2024 633rd KatieLG 🇬🇧 594 77 1,342ms 1 Sep 2024 634th BREMAUCY 🇫🇷 594 316 12ms 7 Aug 2025 635th luuumine 🇫🇷 590 204 209ms 18 Nov 2025 636th KatieLG 🇬🇧 589 135 96ms 21 Nov 2025 637th DialFrost 🇸🇬 586 107 6ms 1 Sep 2024 638th cbrt-x 585 151 121ms 11 Sep 2024 639th Mabeloid 🇳🇴 583 109 569ms 17 Sep 2024 640th dokutan 582 181 41ms 1 Sep 2024 First Prev 561–640 of 776 Next Last