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 526th stefangimmillaro 636 188 195ms 4 Jun 2025 527th emgordon154 635 40 3ms 13 days ago 528th Shanethegamer 🇺🇸 634 72 861ms 1 Sep 2024 528th anter69 🇭🇺 634 72 858ms 25 Oct 2024 530th Ripick 633 127 349ms 6 Sep 2024 531st KatieLG 🇬🇧 632 112 9ms 1 Sep 2024 531st CaedenHarper 🇨🇦 632 112 8ms 22 Aug 2025 533rd dokutan 632 120 6ms 1 Sep 2024 533rd Shanethegamer 🇺🇸 632 120 7ms 2 Sep 2024 535th olleicua 🇺🇸 629 67 35ms 6 Sep 2024 536th RedzGoose 🇦🇺 627 101 495ms 15 Oct 2024 537th kevinnaviapaiva 627 122 10ms 16 Feb 2025 538th BalaM314 626 113 9ms 4 Feb 2025 539th cthierfelder 🇲🇨 624 193 62ms 5 Sep 2025 540th emgordon154 623 115 105ms 4 days ago 541st SirBogman 🇺🇸 622 59 108ms 23 Jul 2025 542nd DialFrost 🇸🇬 622 111 1ms 22 Nov 2024 543rd eddvrs 622 123 14ms 29 Sep 2024 544th KrausRaus 🇺🇸 621 114 10ms 1 Sep 2024 545th Shanethegamer 🇺🇸 620 68 32ms 1 Sep 2024 545th emgordon154 620 68 33ms 1 Sep 2024 545th rvs314 620 68 34ms 24 Sep 2024 545th tatzyr 🇯🇵 620 68 32ms 10 Oct 2025 549th MeWhenI 🇻🇦 619 86 668ms 15 Sep 2025 550th lifthrasiir 🇰🇷 618 227 46ms 11 Dec 2024 551st yokasuretsu 617 124 12ms 10 Jul 2025 551st hamilton-bonds 617 124 13ms 24 Jul 2025 551st robin-scragg 617 124 12ms 18 Oct 2025 554th Andrey-Plotnikov 615 115 8ms 30 Sep 2025 555th aliakseikalosha 614 144 346ms 5 Sep 2024 556th KatieLG 🇬🇧 611 69 32ms 1 Sep 2024 557th Natanaelel 🇸🇪 611 112 18ms 15 May 2025 558th Shanethegamer 🇺🇸 610 102 2,200ms 25 Oct 2024 558th dokutan 610 102 2,099ms 26 Oct 2024 560th BambooleanLogic 🇸🇪 610 116 8ms 19 Nov 2024 560th acollett89 610 116 8ms 4 Aug 2025 562nd nhausspiegel 607 126 13ms 13 Sep 2024 563rd msbranicky 606 86 173ms 16 Sep 2024 564th emgordon154 606 138 10ms 1 Jan 2025 565th matsagad 602 127 13ms 16 Jan 2025 566th Arkadios200 602 132 92ms 11 Oct 2025 567th dokutan 601 76 815ms 3 Sep 2024 568th dokutan 601 147 345ms 3 Nov 2024 569th mamamia5x 600 118 8ms 12 Sep 2024 570th Shanethegamer 🇺🇸 600 134 353ms 1 Sep 2024 571st Shanethegamer 🇺🇸 599 107 91ms 1 Sep 2024 572nd inventshah 598 150 2ms 1 Sep 2024 573rd xyangst 597 128 10ms 12 Oct 2024 573rd 123mjb 597 128 14ms 14 days ago 575th emgordon154 595 104 135ms 14 Nov 2024 576th MeWhenI 🇻🇦 595 177 41ms 4 Sep 2024 576th Shanethegamer 🇺🇸 595 177 41ms 4 Sep 2024 578th mousetail 🇳🇱 594 105 4ms 3 Sep 2024 579th BREMAUCY 🇫🇷 594 316 12ms 7 Aug 2025 580th KatieLG 🇬🇧 593 77 790ms 1 Sep 2024 581st CaedenHarper 🇨🇦 593 149 357ms 16 Oct 2025 582nd h3ra993huskp 🇯🇵 591 163 361ms 3 days ago 583rd KatieLG 🇬🇧 589 135 94ms 11 days ago 584th luuumine 🇫🇷 586 204 193ms 14 days ago 585th DialFrost 🇸🇬 583 107 4ms 1 Sep 2024 586th cbrt-x 583 151 110ms 11 Sep 2024 587th dokutan 582 181 38ms 1 Sep 2024 588th Mabeloid 🇳🇴 581 109 736ms 17 Sep 2024 589th Upload-and-View 🇺🇦 580 119 1ms 23 Jul 2025 590th GeorgeStechman 🇬🇧 580 122 9ms 5 Nov 2024 590th gigaprofisi 🇺🇸 580 122 8ms 10 Aug 2025 592nd snoozingnewt 🇺🇸 580 226 246ms 1 Sep 2024 593rd xyangst 575 123 8ms 15 Oct 2024 594th JohandeRuiter 🇳🇱 575 156 2ms 2 Sep 2024 595th dokutan 570 74 32ms 20 Feb 2025 596th emgordon154 570 133 13ms 16 Dec 2024 597th TeodorDyakov 🇧🇬 564 159 2ms 6 Sep 2025 598th HumanoidCPU 563 110 136ms 11 days ago 599th tomh1012 562 126 9ms 18 Sep 2025 600th smiksky 🇺🇸 562 136 12ms 16 Oct 2024 First Prev 526–600 of 699 Next Last