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 duckyluuk 🇳🇱 824 86 10ms 1 Sep 2024 322nd adamnielson42 🇺🇸 824 93 13ms 7 Oct 2024 322nd guilhem-roy 🇫🇷 824 93 10ms 31 May 2025 324th error256 824 98 149ms 12 Feb 2026 325th CLOStrophobic 🇮🇹 824 108 6ms 19 Feb 2025 326th edsrzf 🇳🇿 823 134 31ms 14 Mar 2026 327th rak1507 🇬🇧 819 31 3ms 11 Sep 2024 328th sean-niemann 🇺🇸 819 151 40ms 16 Jan 2025 329th JayXon 🇺🇸 818 243 1,855ms 10 Jul 2025 330th GrayJoKing 🇦🇺 817 108 7ms 7 Mar 2026 331st AlephSquirrel 816 109 7ms 18 Feb 2025 332nd canissimia 🇦🇶 816 116 13ms 4 Sep 2024 333rd m-tkach 🇺🇦 816 170 635ms 15 Jan 2025 334th error256 815 77 6ms 1 Sep 2024 335th mousetail 🇳🇱 815 94 13ms 1 Sep 2024 335th ljweel 815 94 11ms 12 Sep 2024 335th qpwoeirut 815 94 12ms 7 Feb 2025 338th RyanMHsiao 815 244 1,824ms 25 Sep 2024 339th ovs-code 🇩🇪 814 52 36ms 1 Sep 2024 340th rucin93 🇵🇱 814 76 134ms 31 Oct 2024 341st alemelis 814 78 453ms 1 Sep 2024 341st Shanethegamer 🇺🇸 814 78 465ms 1 Sep 2024 341st SirBogman 🇺🇸 814 78 516ms 4 Sep 2024 341st error256 814 78 484ms 4 Sep 2024 341st commandz0 🇺🇸 814 78 510ms 1 Sep 2025 341st Babafaba 814 78 478ms 22 Oct 2025 341st CornerMercury 🇬🇧 814 78 434ms 24 Jan 2026 348th GrayJoKing 🇦🇺 814 84 14ms 1 Sep 2024 348th annaproxy 814 84 17ms 22 Oct 2024 350th tomtheisen 🇺🇸 814 109 413ms 8 Nov 2024 351st GolfingSuccess 🇬🇷 814 120 72ms 22 days ago 352nd error256 810 150 27ms 5 May 2025 353rd MostParsingVex 809 153 42ms 3 Oct 2024 354th primo-ppcg 🇹🇭 809 232 145ms 1 Dec 2025 355th msbranicky 806 95 11ms 1 Sep 2024 355th Bulmenisaurus 806 95 12ms 4 Sep 2024 355th btjones0 806 95 10ms 13 Sep 2024 355th jfallon1997 806 95 10ms 26 Sep 2024 355th jacekwladzinski 806 95 10ms 7 Oct 2025 355th aalec 806 95 10ms 8 Nov 2025 361st SirBogman 🇺🇸 806 155 44ms 3 Sep 2024 362nd Shanethegamer 🇺🇸 805 145 1,282ms 4 Sep 2024 363rd MeWhenI 🇻🇦 805 157 13ms 7 Sep 2024 364th GolfingSuccess 🇬🇷 805 210 1,654ms 8 Feb 2025 365th ovs-code 🇩🇪 802 175 9ms 30 Sep 2024 366th emgordon154 801 211 1,704ms 24 Jan 2025 367th MeWhenI 🇻🇦 800 101 129ms 3 Sep 2024 368th MeWhenI 🇻🇦 799 50 3ms 1 Sep 2024 368th retrohun 799 50 3ms 9 Mar 2025 370th namelessiw 799 111 428ms 22 Apr 2025 371st error256 799 146 1,341ms 2 May 2025 372nd fgrosshans 🇫🇷 798 96 10ms 1 Sep 2024 372nd Mikey-Beep 🇬🇧 798 96 10ms 2 Sep 2024 372nd JudeTyrrell 798 96 13ms 22 Sep 2024 375th albanian-laundromat 🇺🇸 798 201 4ms 23 Jan 2026 376th nwellnhof 🇩🇪 797 134 456ms 2 Sep 2024 376th tailorspy 797 134 581ms 16 Sep 2024 378th lifthrasiir 🇰🇷 794 32 2ms 29 Nov 2024 378th emgordon154 794 32 2ms 11 Mar 2026 380th kg583 🇺🇸 794 112 10ms 9 May 2025 381st MeWhenI 🇻🇦 793 80 450ms 1 Sep 2024 381st GrayJoKing 🇦🇺 793 80 436ms 2 Sep 2024 383rd stefangimmillaro 792 166 334ms 4 Sep 2024 384th o0BlackDragon0o 790 97 15ms 8 Sep 2024 384th Bombalech 790 97 11ms 8 Sep 2024 384th scpchicken 🇵🇼 790 97 242ms 8 Sep 2024 384th Carlettos1 790 97 13ms 14 Sep 2024 388th mousetail 🇳🇱 789 62 59ms 3 Sep 2024 388th GolfingSuccess 🇬🇷 789 62 10ms 2 Dec 2025 390th kg583 🇺🇸 788 124 72ms 21 days ago 391st sean-niemann 🇺🇸 785 113 427ms 5 Sep 2024 392nd rzv-me 784 80 6ms 5 Oct 2024 393rd emplv 🇱🇻 783 79 157ms 1 Nov 2024 394th HumanoidCPU 782 98 11ms 2 Sep 2024 394th dtbao20 🇻🇳 782 98 22ms 30 Sep 2024 394th YAJUE114514 782 98 10ms 30 Jul 2025 394th luuumine 🇫🇷 782 98 11ms 15 Oct 2025 394th netfri25 🇮🇱 782 98 10ms 22 Feb 2026 394th rotemkm 782 98 11ms 22 Feb 2026 400th albanian-laundromat 🇺🇸 782 114 2ms 27 Nov 2025 First Prev 321–400 of 776 Next Last