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 478th nstearns96 🇬🇧 716 107 11ms 13 Nov 2024 478th rchalamala 716 107 10ms 2 Jan 2025 478th brochmann 🇸🇪 716 107 10ms 16 Oct 2025 484th jusaka 714 89 423ms 5 days ago 485th snyderek 🇺🇸 714 150 61ms 15 Sep 2024 486th Shanethegamer 🇺🇸 713 114 109ms 2 Sep 2024 487th alexsave 709 100 11ms 22 Sep 2024 488th JesseNoEyes 🇺🇸 709 108 11ms 30 Sep 2024 489th error256 708 97 15ms 14 Jan 2026 490th HumanoidCPU 706 90 514ms 2 Sep 2024 491st adriweb 🇫🇷 706 98 2ms 4 Sep 2024 491st sean-niemann 🇺🇸 706 98 2ms 5 Sep 2024 491st dokutan 706 98 2ms 14 Sep 2024 494th MeWhenI 🇻🇦 705 88 127ms 1 Sep 2024 494th error256 705 88 129ms 10 Sep 2024 496th MostParsingVex 705 152 1,799ms 18 Mar 2026 497th CaedenHarper 🇨🇦 705 187 352ms 8 Nov 2025 498th DialFrost 🇸🇬 704 61 1,104ms 31 Aug 2025 498th Steffan153 🇫🇮 704 61 879ms 17 Feb 2026 500th ovs-code 🇩🇪 704 128 2ms 1 Sep 2024 501st Mabeloid 🇳🇴 703 109 11ms 1 Sep 2024 501st MassimoParisi 703 109 12ms 18 Sep 2024 501st klixel 🇨🇦 703 109 10ms 21 Sep 2024 501st NotNoper 703 109 10ms 29 Oct 2024 501st za3k 703 109 10ms 15 Jul 2025 501st RaBa21 🇭🇺 703 109 10ms 18 Jul 2025 501st zgialor-lab 703 109 11ms 17 Dec 2025 508th emgordon154 702 101 10ms 1 Sep 2024 509th sean-niemann 🇺🇸 702 107 3ms 23 Aug 2025 510th elgan65536 🇺🇸 701 172 232ms 23 Sep 2024 511th sean-niemann 🇺🇸 700 114 112ms 7 Sep 2024 512th MeWhenI 🇻🇦 698 59 20ms 13 Jun 2025 513th KatieLG 🇬🇧 698 91 506ms 1 Sep 2024 514th frosster 🇨🇦 698 99 2ms 21 Mar 2025 515th Andrey2001 696 110 14ms 31 Jan 2026 516th stefangimmillaro 695 90 2,318ms 14 Nov 2024 517th prestosilver 🇺🇸 694 117 587ms 20 days ago 518th JDiLenarda 🇫🇷 691 170 1,554ms 3 Sep 2024 519th JunkIce 690 92 561ms 3 Dec 2024 520th aksyristos 690 111 13ms 1 Sep 2024 520th wh3n3v3r 🇨🇿 690 111 12ms 11 Nov 2024 520th AstroOrbis 690 111 10ms 30 Jun 2025 523rd emgordon154 690 319 1,701ms 4 days ago 524th kaascevich 688 116 1,898ms 15 Sep 2025 525th GolfingSuccess 🇬🇷 688 131 2ms 1 Sep 2024 526th DialFrost 🇸🇬 687 118 81ms 22 Jun 2025 527th DialFrost 🇸🇬 683 62 40ms 30 Jan 2025 528th error256 682 63 1,008ms 20 Dec 2025 529th olleicua 🇺🇸 682 104 10ms 11 Sep 2024 529th charliegaming 682 104 11ms 28 Nov 2024 531st MeWhenI 🇻🇦 682 117 114ms 2 Sep 2024 531st stefangimmillaro 682 117 103ms 2 Sep 2024 533rd madex 🇩🇪 681 177 230ms 17 Sep 2024 534th BlankSpruce 678 158 65ms 1 Sep 2024 535th dcgjb 677 69 297ms 11 Sep 2024 536th chunes3 🇺🇸 675 112 64ms 1 Sep 2024 537th alicethecatwhisperermeow 673 132 464ms 14 Sep 2024 538th stefangimmillaro 672 63 44ms 2 Sep 2024 538th SirBogman 🇺🇸 672 63 39ms 5 Sep 2024 540th madeforlosers 669 106 11ms 23 Oct 2024 541st voytxt 🇨🇿 667 93 138ms 17 Apr 2025 542nd DialFrost 🇸🇬 666 96 99ms 28 Nov 2025 543rd DialFrost 🇸🇬 666 181 198ms 12 Apr 2025 544th dokutan 664 79 195ms 3 Sep 2024 545th dokutan 662 107 11ms 5 Jun 2025 546th GolfingSuccess 🇬🇷 662 162 448ms 1 Sep 2024 546th ovs-code 🇩🇪 662 162 2,842ms 1 Sep 2024 548th albanian-laundromat 🇺🇸 662 189 44ms 14 Sep 2025 549th snoozingnewt 🇨🇦 662 194 44ms 9 days ago 550th LeoCh01 660 116 10ms 1 Sep 2024 551st msbranicky 660 136 3ms 1 Sep 2024 552nd m-tkach 🇺🇦 660 169 29ms 9 Feb 2026 553rd msbranicky 659 95 2,276ms 8 Jan 2025 554th NickTheEASDude 🇺🇸 659 105 2ms 7 Oct 2025 555th lukechampine 659 200 342ms 7 Jun 2025 555th jerrandolph 659 200 334ms 21 Sep 2025 557th Shanethegamer 🇺🇸 658 135 445ms 1 Sep 2024 558th AlephSquirrel 658 248 3ms 29 Sep 2024 559th Shanethegamer 🇺🇸 653 95 140ms 8 Jan 2025 560th TFeld00 🇩🇰 651 65 39ms 3 Sep 2024 First Prev 481–560 of 841 Next Last