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 321st error256 829 98 141ms 12 Feb 2026 322nd sean-niemann 🇺🇸 829 151 40ms 16 Jan 2025 323rd emplv 🇱🇻 829 159 343ms 18 Sep 2024 324th MeWhenI 🇻🇦 828 98 401ms 2 Sep 2024 325th CLOStrophobic 🇮🇹 828 108 6ms 19 Feb 2025 326th SirBogman 🇺🇸 828 155 44ms 3 Sep 2024 327th GrayJoKing 🇦🇺 826 108 9ms 7 Mar 2026 328th m-tkach 🇺🇦 826 170 635ms 15 Jan 2025 329th emgordon154 825 77 487ms 22 Nov 2024 330th duckyluuk 🇳🇱 824 86 10ms 1 Sep 2024 331st adamnielson42 🇺🇸 824 93 13ms 7 Oct 2024 331st guilhem-roy 🇫🇷 824 93 10ms 31 May 2025 333rd GolfingSuccess 🇬🇷 823 120 84ms 20 Mar 2026 334th AlephSquirrel 821 109 7ms 18 Feb 2025 335th rak1507 🇬🇧 819 31 3ms 11 Sep 2024 336th primo-ppcg 🇹🇭 819 232 145ms 1 Dec 2025 337th MostParsingVex 818 153 44ms 3 Oct 2024 338th error256 817 77 5ms 1 Sep 2024 339th GrayJoKing 🇦🇺 817 84 14ms 1 Sep 2024 339th annaproxy 817 84 17ms 22 Oct 2024 341st rucin93 🇵🇱 816 76 150ms 31 Oct 2024 342nd canissimia 🇦🇶 816 116 13ms 4 Sep 2024 343rd error256 816 150 27ms 5 May 2025 344th mousetail 🇳🇱 815 94 13ms 1 Sep 2024 344th ljweel 815 94 11ms 12 Sep 2024 344th qpwoeirut 815 94 12ms 7 Feb 2025 347th tomtheisen 🇺🇸 815 109 438ms 8 Nov 2024 348th ovs-code 🇩🇪 814 52 36ms 1 Sep 2024 349th alemelis 814 78 453ms 1 Sep 2024 349th Shanethegamer 🇺🇸 814 78 465ms 1 Sep 2024 349th SirBogman 🇺🇸 814 78 516ms 4 Sep 2024 349th error256 814 78 484ms 4 Sep 2024 349th commandz0 🇺🇸 814 78 510ms 1 Sep 2025 349th Babafaba 814 78 478ms 22 Oct 2025 349th CornerMercury 🇬🇧 814 78 434ms 24 Jan 2026 356th albanian-laundromat 🇺🇸 812 201 4ms 23 Jan 2026 357th Shanethegamer 🇺🇸 810 145 1,510ms 4 Sep 2024 358th GolfingSuccess 🇬🇷 810 210 1,433ms 8 Feb 2025 359th msbranicky 806 95 11ms 1 Sep 2024 359th Bulmenisaurus 806 95 12ms 4 Sep 2024 359th btjones0 806 95 10ms 13 Sep 2024 359th jfallon1997 806 95 10ms 26 Sep 2024 359th jacekwladzinski 806 95 10ms 7 Oct 2025 359th aalec 806 95 10ms 8 Nov 2025 365th emgordon154 806 211 1,467ms 24 Jan 2025 366th JayXon 🇺🇸 806 273 1,691ms 4 days ago 367th MeWhenI 🇻🇦 805 157 14ms 7 Sep 2024 368th MeWhenI 🇻🇦 804 101 115ms 3 Sep 2024 369th error256 804 146 1,390ms 2 May 2025 370th ovs-code 🇩🇪 802 175 9ms 30 Sep 2024 371st namelessiw 800 111 432ms 22 Apr 2025 372nd nwellnhof 🇩🇪 800 134 456ms 2 Sep 2024 372nd tailorspy 800 134 581ms 16 Sep 2024 374th MeWhenI 🇻🇦 799 50 3ms 1 Sep 2024 374th retrohun 799 50 3ms 9 Mar 2025 376th kg583 🇺🇸 799 112 10ms 9 May 2025 377th fgrosshans 🇫🇷 798 96 10ms 1 Sep 2024 377th Mikey-Beep 🇬🇧 798 96 10ms 2 Sep 2024 377th JudeTyrrell 798 96 13ms 22 Sep 2024 380th kg583 🇺🇸 797 124 83ms 21 Mar 2026 381st lifthrasiir 🇰🇷 794 32 2ms 29 Nov 2024 381st emgordon154 794 32 2ms 11 Mar 2026 383rd MeWhenI 🇻🇦 794 80 450ms 1 Sep 2024 383rd GrayJoKing 🇦🇺 794 80 436ms 2 Sep 2024 385th stefangimmillaro 794 166 334ms 4 Sep 2024 386th mousetail 🇳🇱 791 62 59ms 3 Sep 2024 386th GolfingSuccess 🇬🇷 791 62 10ms 2 Dec 2025 388th o0BlackDragon0o 790 97 15ms 8 Sep 2024 388th Bombalech 790 97 11ms 8 Sep 2024 388th Carlettos1 790 97 13ms 14 Sep 2024 391st albanian-laundromat 🇺🇸 787 114 2ms 27 Nov 2025 392nd rzv-me 786 80 5ms 5 Oct 2024 393rd sean-niemann 🇺🇸 786 113 458ms 5 Sep 2024 394th emplv 🇱🇻 785 79 141ms 1 Nov 2024 395th MostParsingVex 785 156 65ms 21 days ago 396th error256 783 154 209ms 12 Feb 2026 397th HumanoidCPU 782 98 11ms 2 Sep 2024 397th dtbao20 🇻🇳 782 98 22ms 30 Sep 2024 397th YAJUE114514 782 98 10ms 30 Jul 2025 397th luuumine 🇫🇷 782 98 11ms 15 Oct 2025 First Prev 321–400 of 841 Next Last