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 447th za3k 701 109 9ms 15 Jul 2025 447th RaBa21 🇭🇺 701 109 9ms 18 Jul 2025 453rd ovs-code 🇩🇪 701 128 2ms 1 Sep 2024 454th CaedenHarper 🇨🇦 701 187 238ms 22 days ago 455th frosster 697 99 2ms 21 Mar 2025 456th sean-niemann 🇺🇸 697 114 101ms 7 Sep 2024 457th KatieLG 🇬🇧 696 91 426ms 1 Sep 2024 458th elgan65536 695 172 195ms 23 Sep 2024 459th MostParsingVex 694 154 1,157ms 15 Sep 2024 460th sean-niemann 🇺🇸 692 107 2ms 23 Aug 2025 461st stefangimmillaro 691 90 2,112ms 14 Nov 2024 462nd aksyristos 689 111 9ms 1 Sep 2024 462nd wh3n3v3r 🇨🇿 689 111 9ms 11 Nov 2024 462nd AstroOrbis 689 111 9ms 30 Jun 2025 465th Shanethegamer 🇺🇸 689 206 29ms 4 Sep 2024 466th JunkIce 688 92 630ms 3 Dec 2024 467th kaascevich 685 116 1,671ms 15 Sep 2025 468th GolfingSuccess 🇬🇷 685 131 2ms 1 Sep 2024 469th edsrzf 🇳🇿 682 118 347ms 25 Jun 2025 470th emgordon154 682 288 1,618ms 2 Oct 2024 471st olleicua 🇺🇸 681 104 9ms 11 Sep 2024 471st charliegaming 681 104 9ms 28 Nov 2024 473rd DialFrost 🇸🇬 681 118 74ms 22 Jun 2025 474th DialFrost 🇸🇬 680 62 33ms 30 Jan 2025 475th MeWhenI 🇻🇦 679 117 108ms 2 Sep 2024 475th stefangimmillaro 679 117 93ms 2 Sep 2024 477th edsrzf 🇳🇿 678 92 4ms 10 Oct 2024 478th BlankSpruce 676 158 56ms 1 Sep 2024 479th madex 🇩🇪 676 177 208ms 17 Sep 2024 480th dcgjb 674 69 284ms 11 Sep 2024 481st stefangimmillaro 669 63 32ms 2 Sep 2024 481st SirBogman 🇺🇸 669 63 32ms 5 Sep 2024 483rd alicethecatwhisperermeow 669 132 371ms 14 Sep 2024 484th madeforlosers 668 106 8ms 23 Oct 2024 485th chunes3 🇺🇸 668 112 62ms 1 Sep 2024 486th DialFrost 🇸🇬 666 76 14ms 1 Aug 2025 487th voytxt 🇨🇿 665 93 132ms 17 Apr 2025 488th Maznek 662 107 9ms 8 Oct 2024 488th dokutan 662 107 9ms 5 Jun 2025 490th DialFrost 🇸🇬 661 181 197ms 12 Apr 2025 490th error256 661 181 173ms 22 May 2025 492nd dokutan 660 79 164ms 3 Sep 2024 493rd GolfingSuccess 🇬🇷 660 162 363ms 1 Sep 2024 493rd ovs-code 🇩🇪 660 162 2,175ms 1 Sep 2024 495th LeoCh01 659 116 9ms 1 Sep 2024 496th NickTheEASDude 🇺🇸 657 105 2ms 7 Oct 2025 497th msbranicky 656 136 2ms 1 Sep 2024 498th msbranicky 655 95 1,996ms 8 Jan 2025 499th Shanethegamer 🇺🇸 655 135 377ms 1 Sep 2024 500th albanian-laundromat 655 189 42ms 14 Sep 2025 501st lukechampine 655 200 244ms 7 Jun 2025 501st jerrandolph 655 200 248ms 21 Sep 2025 503rd Shanethegamer 🇺🇸 651 95 139ms 8 Jan 2025 504th ShiraJoseph 🇺🇸 650 109 8ms 22 Sep 2024 505th TFeld00 🇩🇰 649 65 32ms 3 Sep 2024 506th msbranicky 646 203 249ms 1 Sep 2024 507th error256 645 106 16ms 18 Apr 2025 508th Waffle3z 645 107 1ms 2 Oct 2024 509th mrxz 🇳🇱 644 110 9ms 22 Sep 2024 509th weliveinhell 🇭🇹 644 110 8ms 28 Sep 2024 511th snoozingnewt 🇺🇸 644 186 8ms 1 Sep 2024 512th stefangimmillaro 643 71 819ms 3 Sep 2024 513th Zhenyu-Bo 642 119 9ms 1 Aug 2025 514th BlankSpruce 641 140 2ms 1 Sep 2024 515th anter69 🇭🇺 639 66 32ms 25 Oct 2024 516th aDwarfNamedUrist 638 138 112ms 4 Sep 2024 517th stefangimmillaro 638 151 342ms 6 Oct 2025 518th SirBogman 🇺🇸 637 73 295ms 23 Jul 2025 519th lhulinsky 637 120 9ms 23 Oct 2024 519th arjunarya1 637 120 9ms 11 Sep 2025 521st stefangimmillaro 636 188 195ms 4 Jun 2025 522nd emgordon154 635 40 3ms 11 days ago 523rd Shanethegamer 🇺🇸 634 72 861ms 1 Sep 2024 523rd anter69 🇭🇺 634 72 858ms 25 Oct 2024 525th Ripick 633 127 349ms 6 Sep 2024 First Prev 451–525 of 694 Next Last