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 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 Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix 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 ><> ALGOL 68 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 ArkScript 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 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 ArkScript 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 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 Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix 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 321st rak1507 🇬🇧 819 31 3ms 11 Sep 2024 322nd sean-niemann 🇺🇸 819 151 40ms 16 Jan 2025 323rd JayXon 🇺🇸 818 243 1,867ms 10 Jul 2025 324th GrayJoKing 🇦🇺 817 108 10ms 7 days ago 325th AlephSquirrel 816 109 6ms 18 Feb 2025 326th canissimia 🇦🇶 816 116 13ms 4 Sep 2024 327th m-tkach 🇺🇦 816 170 658ms 15 Jan 2025 328th error256 815 77 5ms 1 Sep 2024 329th mousetail 🇳🇱 815 94 12ms 1 Sep 2024 329th ljweel 815 94 10ms 12 Sep 2024 329th qpwoeirut 815 94 12ms 7 Feb 2025 332nd RyanMHsiao 815 244 1,916ms 25 Sep 2024 333rd rucin93 🇵🇱 814 76 169ms 31 Oct 2024 334th alemelis 814 78 455ms 1 Sep 2024 334th Shanethegamer 🇺🇸 814 78 453ms 1 Sep 2024 334th SirBogman 🇺🇸 814 78 474ms 4 Sep 2024 334th error256 814 78 439ms 4 Sep 2024 334th commandz0 🇺🇸 814 78 467ms 1 Sep 2025 334th Babafaba 814 78 417ms 22 Oct 2025 334th CornerMercury 🇬🇧 814 78 477ms 24 Jan 2026 341st GrayJoKing 🇦🇺 814 84 14ms 1 Sep 2024 341st annaproxy 814 84 17ms 22 Oct 2024 343rd tomtheisen 🇺🇸 814 109 444ms 8 Nov 2024 344th ovs-code 🇩🇪 813 52 39ms 1 Sep 2024 345th error256 810 150 27ms 5 May 2025 346th MostParsingVex 809 153 43ms 3 Oct 2024 347th primo-ppcg 🇹🇭 809 232 145ms 1 Dec 2025 348th msbranicky 806 95 10ms 1 Sep 2024 348th Bulmenisaurus 806 95 12ms 4 Sep 2024 348th btjones0 806 95 10ms 13 Sep 2024 348th jfallon1997 806 95 9ms 26 Sep 2024 348th jacekwladzinski 806 95 9ms 7 Oct 2025 348th aalec 806 95 9ms 8 Nov 2025 354th SirBogman 🇺🇸 806 155 44ms 3 Sep 2024 355th Shanethegamer 🇺🇸 805 145 1,623ms 4 Sep 2024 356th MeWhenI 🇻🇦 805 157 15ms 7 Sep 2024 357th GolfingSuccess 🇬🇷 805 210 1,471ms 8 Feb 2025 358th ovs-code 🇩🇪 802 175 9ms 30 Sep 2024 359th emgordon154 801 211 1,474ms 24 Jan 2025 360th MeWhenI 🇻🇦 800 101 130ms 3 Sep 2024 361st MeWhenI 🇻🇦 799 50 3ms 1 Sep 2024 361st retrohun 799 50 3ms 9 Mar 2025 363rd namelessiw 799 111 616ms 22 Apr 2025 364th error256 799 146 1,500ms 2 May 2025 365th fgrosshans 🇫🇷 798 96 9ms 1 Sep 2024 365th Mikey-Beep 🇬🇧 798 96 12ms 2 Sep 2024 365th JudeTyrrell 798 96 10ms 22 Sep 2024 368th albanian-laundromat 798 201 4ms 23 Jan 2026 369th nwellnhof 🇩🇪 797 134 455ms 2 Sep 2024 369th tailorspy 797 134 605ms 16 Sep 2024 371st kg583 🇺🇸 794 112 7ms 9 May 2025 372nd lifthrasiir 🇰🇷 793 32 2ms 29 Nov 2024 372nd emgordon154 793 32 2ms 3 days ago 374th MeWhenI 🇻🇦 793 80 442ms 1 Sep 2024 374th GrayJoKing 🇦🇺 793 80 474ms 2 Sep 2024 376th stefangimmillaro 792 166 276ms 4 Sep 2024 377th mousetail 🇳🇱 789 62 59ms 3 Sep 2024 377th GolfingSuccess 🇬🇷 789 62 10ms 2 Dec 2025 379th o0BlackDragon0o 789 97 13ms 8 Sep 2024 379th Bombalech 789 97 11ms 8 Sep 2024 379th scpchicken 🇵🇼 789 97 244ms 8 Sep 2024 379th Carlettos1 789 97 12ms 14 Sep 2024 383rd sean-niemann 🇺🇸 785 113 433ms 5 Sep 2024 384th rzv-me 784 80 5ms 5 Oct 2024 385th emplv 🇱🇻 783 79 196ms 1 Nov 2024 386th albanian-laundromat 782 114 2ms 27 Nov 2025 387th HumanoidCPU 781 98 10ms 2 Sep 2024 387th dtbao20 🇻🇳 781 98 17ms 30 Sep 2024 387th YAJUE114514 781 98 10ms 30 Jul 2025 387th luuumine 🇫🇷 781 98 11ms 15 Oct 2025 387th netfri25 🇮🇱 781 98 10ms 20 days ago 387th rotemkm 781 98 10ms 20 days ago 393rd KingSkyrock 🇺🇸 779 91 10ms 14 Oct 2024 394th error256 779 154 201ms 12 Feb 2026 395th stefangimmillaro 778 114 412ms 4 Sep 2024 396th MeWhenI 🇻🇦 777 39 33ms 2 Sep 2024 397th the-zammers 775 114 117ms 1 Dec 2024 398th snoozingnewt 🇨🇦 774 82 486ms 22 Nov 2025 398th dokutan 774 82 414ms 15 days ago 400th jatloe 773 99 11ms 4 Sep 2024 First Prev 321–400 of 768 Next Last