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 450th error256 703 88 126ms 10 Sep 2024 452nd Mabeloid 🇳🇴 702 109 13ms 1 Sep 2024 452nd MassimoParisi 702 109 13ms 18 Sep 2024 452nd klixel 🇨🇦 702 109 12ms 21 Sep 2024 452nd NotNoper 702 109 11ms 29 Oct 2024 452nd za3k 702 109 14ms 15 Jul 2025 452nd RaBa21 🇭🇺 702 109 13ms 18 Jul 2025 458th emgordon154 701 101 8ms 1 Sep 2024 459th ovs-code 🇩🇪 701 128 2ms 1 Sep 2024 460th CaedenHarper 🇨🇦 701 187 257ms 24 days ago 461st frosster 697 99 2ms 21 Mar 2025 462nd sean-niemann 🇺🇸 697 114 101ms 7 Sep 2024 463rd KatieLG 🇬🇧 696 91 472ms 1 Sep 2024 464th elgan65536 695 172 195ms 23 Sep 2024 465th MostParsingVex 694 154 1,157ms 15 Sep 2024 466th sean-niemann 🇺🇸 692 107 2ms 23 Aug 2025 467th stefangimmillaro 691 90 2,112ms 14 Nov 2024 468th aksyristos 689 111 11ms 1 Sep 2024 468th wh3n3v3r 🇨🇿 689 111 13ms 11 Nov 2024 468th AstroOrbis 689 111 11ms 30 Jun 2025 471st Shanethegamer 🇺🇸 689 206 29ms 4 Sep 2024 472nd JunkIce 688 92 719ms 3 Dec 2024 473rd kaascevich 685 116 1,671ms 15 Sep 2025 474th GolfingSuccess 🇬🇷 685 131 2ms 1 Sep 2024 475th emgordon154 682 288 1,618ms 2 Oct 2024 476th olleicua 🇺🇸 681 104 9ms 11 Sep 2024 476th charliegaming 681 104 9ms 28 Nov 2024 478th DialFrost 🇸🇬 681 118 74ms 22 Jun 2025 479th DialFrost 🇸🇬 680 62 33ms 30 Jan 2025 480th MeWhenI 🇻🇦 679 117 108ms 2 Sep 2024 480th stefangimmillaro 679 117 93ms 2 Sep 2024 482nd edsrzf 🇳🇿 678 92 4ms 10 Oct 2024 483rd BlankSpruce 676 158 56ms 1 Sep 2024 484th madex 🇩🇪 676 177 208ms 17 Sep 2024 485th dcgjb 674 69 276ms 11 Sep 2024 486th stefangimmillaro 669 63 32ms 2 Sep 2024 486th SirBogman 🇺🇸 669 63 32ms 5 Sep 2024 488th alicethecatwhisperermeow 669 132 365ms 14 Sep 2024 489th madeforlosers 668 106 8ms 23 Oct 2024 490th chunes3 🇺🇸 668 112 62ms 1 Sep 2024 491st DialFrost 🇸🇬 666 76 14ms 1 Aug 2025 492nd voytxt 🇨🇿 665 93 132ms 17 Apr 2025 493rd Maznek 662 107 9ms 8 Oct 2024 493rd dokutan 662 107 9ms 5 Jun 2025 495th DialFrost 🇸🇬 661 181 197ms 12 Apr 2025 495th error256 661 181 173ms 22 May 2025 497th dokutan 660 79 164ms 3 Sep 2024 498th GolfingSuccess 🇬🇷 660 162 363ms 1 Sep 2024 498th ovs-code 🇩🇪 660 162 2,175ms 1 Sep 2024 500th LeoCh01 659 116 12ms 1 Sep 2024 501st NickTheEASDude 🇺🇸 657 105 2ms 7 Oct 2025 502nd msbranicky 656 136 2ms 1 Sep 2024 503rd msbranicky 655 95 1,996ms 8 Jan 2025 504th Shanethegamer 🇺🇸 655 135 374ms 1 Sep 2024 505th albanian-laundromat 655 189 42ms 14 Sep 2025 506th lukechampine 655 200 251ms 7 Jun 2025 506th jerrandolph 655 200 260ms 21 Sep 2025 508th Shanethegamer 🇺🇸 651 95 139ms 8 Jan 2025 509th TFeld00 🇩🇰 649 65 32ms 3 Sep 2024 510th ShiraJoseph 🇺🇸 649 109 8ms 22 Sep 2024 511th msbranicky 646 203 255ms 1 Sep 2024 512th error256 645 106 16ms 18 Apr 2025 513th Waffle3z 645 107 1ms 2 Oct 2024 514th snoozingnewt 🇺🇸 644 186 8ms 1 Sep 2024 515th stefangimmillaro 643 71 819ms 3 Sep 2024 516th mrxz 🇳🇱 643 110 9ms 22 Sep 2024 516th weliveinhell 🇭🇹 643 110 8ms 28 Sep 2024 518th Zhenyu-Bo 643 119 15ms 1 Aug 2025 519th BlankSpruce 641 140 2ms 1 Sep 2024 520th anter69 🇭🇺 639 66 32ms 25 Oct 2024 521st aDwarfNamedUrist 638 138 112ms 4 Sep 2024 522nd stefangimmillaro 638 151 342ms 6 Oct 2025 523rd SirBogman 🇺🇸 637 73 280ms 23 Jul 2025 524th lhulinsky 637 120 13ms 23 Oct 2024 524th arjunarya1 637 120 14ms 11 Sep 2025 First Prev 451–525 of 699 Next Last