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 Multitap Input 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 Multitap Input 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 451st adriweb 🇫🇷 704 98 1ms 4 Sep 2024 451st sean-niemann 🇺🇸 704 98 2ms 5 Sep 2024 451st dokutan 704 98 2ms 14 Sep 2024 454th Shanethegamer 🇺🇸 704 114 101ms 2 Sep 2024 455th MeWhenI 🇻🇦 703 88 137ms 1 Sep 2024 455th error256 703 88 135ms 10 Sep 2024 457th Mabeloid 🇳🇴 702 109 10ms 1 Sep 2024 457th MassimoParisi 702 109 11ms 18 Sep 2024 457th klixel 🇨🇦 702 109 10ms 21 Sep 2024 457th NotNoper 702 109 9ms 29 Oct 2024 457th za3k 702 109 11ms 15 Jul 2025 457th RaBa21 🇭🇺 702 109 11ms 18 Jul 2025 463rd ovs-code 🇩🇪 702 128 2ms 1 Sep 2024 464th emgordon154 701 101 9ms 1 Sep 2024 465th CaedenHarper 🇨🇦 701 187 256ms 8 Nov 2025 466th frosster 697 99 2ms 21 Mar 2025 467th sean-niemann 🇺🇸 697 114 150ms 7 Sep 2024 468th KatieLG 🇬🇧 696 91 455ms 1 Sep 2024 469th elgan65536 695 172 226ms 23 Sep 2024 470th MostParsingVex 694 154 1,213ms 15 Sep 2024 471st sean-niemann 🇺🇸 692 107 2ms 23 Aug 2025 472nd stefangimmillaro 691 90 3,174ms 14 Nov 2024 473rd aksyristos 689 111 11ms 1 Sep 2024 473rd wh3n3v3r 🇨🇿 689 111 10ms 11 Nov 2024 473rd AstroOrbis 689 111 10ms 30 Jun 2025 476th Shanethegamer 🇺🇸 689 206 31ms 4 Sep 2024 477th JunkIce 688 92 718ms 3 Dec 2024 478th GolfingSuccess 🇬🇷 686 131 2ms 1 Sep 2024 479th kaascevich 685 116 1,641ms 15 Sep 2025 480th emgordon154 682 288 1,927ms 2 Oct 2024 481st olleicua 🇺🇸 681 104 9ms 11 Sep 2024 481st charliegaming 681 104 9ms 28 Nov 2024 483rd DialFrost 🇸🇬 681 118 93ms 22 Jun 2025 484th DialFrost 🇸🇬 680 62 40ms 30 Jan 2025 485th MeWhenI 🇻🇦 679 117 148ms 2 Sep 2024 485th stefangimmillaro 679 117 147ms 2 Sep 2024 487th edsrzf 🇳🇿 678 92 5ms 10 Oct 2024 488th BlankSpruce 676 158 57ms 1 Sep 2024 489th madex 🇩🇪 676 177 238ms 17 Sep 2024 490th dcgjb 674 69 276ms 11 Sep 2024 491st stefangimmillaro 669 63 40ms 2 Sep 2024 491st SirBogman 🇺🇸 669 63 39ms 5 Sep 2024 493rd alicethecatwhisperermeow 669 132 365ms 14 Sep 2024 494th madeforlosers 668 106 8ms 23 Oct 2024 495th chunes3 🇺🇸 668 112 62ms 1 Sep 2024 496th DialFrost 🇸🇬 666 76 23ms 1 Aug 2025 497th voytxt 🇨🇿 665 93 134ms 17 Apr 2025 498th dokutan 662 79 164ms 3 Sep 2024 499th Maznek 662 107 9ms 8 Oct 2024 499th dokutan 662 107 9ms 5 Jun 2025 501st DialFrost 🇸🇬 661 181 218ms 12 Apr 2025 501st error256 661 181 205ms 22 May 2025 503rd GolfingSuccess 🇬🇷 660 162 373ms 1 Sep 2024 503rd ovs-code 🇩🇪 660 162 2,217ms 1 Sep 2024 505th LeoCh01 659 116 9ms 1 Sep 2024 506th NickTheEASDude 🇺🇸 657 105 2ms 7 Oct 2025 507th msbranicky 656 136 3ms 1 Sep 2024 508th msbranicky 655 95 4,184ms 8 Jan 2025 509th Shanethegamer 🇺🇸 655 135 374ms 1 Sep 2024 510th albanian-laundromat 655 189 44ms 14 Sep 2025 511th lukechampine 655 200 255ms 7 Jun 2025 511th jerrandolph 655 200 264ms 21 Sep 2025 513th Shanethegamer 🇺🇸 651 95 141ms 8 Jan 2025 514th TFeld00 🇩🇰 649 65 47ms 3 Sep 2024 515th ShiraJoseph 🇺🇸 649 109 9ms 22 Sep 2024 516th msbranicky 646 203 257ms 1 Sep 2024 517th error256 645 106 13ms 18 Apr 2025 518th Waffle3z 645 107 2ms 2 Oct 2024 519th snoozingnewt 🇨🇦 644 186 8ms 1 Sep 2024 520th stefangimmillaro 643 71 819ms 3 Sep 2024 521st mrxz 🇳🇱 643 110 9ms 22 Sep 2024 521st weliveinhell 🇭🇹 643 110 9ms 28 Sep 2024 523rd Zhenyu-Bo 643 119 11ms 1 Aug 2025 524th BlankSpruce 642 140 2ms 1 Sep 2024 525th anter69 🇭🇺 639 66 42ms 25 Oct 2024 First Prev 451–525 of 704 Next Last