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 833 98 149ms 12 Feb 2026 322nd edsrzf 🇳🇿 833 134 31ms 14 Mar 2026 323rd emplv 🇱🇻 832 159 343ms 18 Sep 2024 324th emgordon154 831 59 8ms 15 Nov 2024 325th MeWhenI 🇻🇦 831 98 401ms 2 Sep 2024 326th sean-niemann 🇺🇸 829 151 40ms 16 Jan 2025 327th CLOStrophobic 🇮🇹 828 108 6ms 19 Feb 2025 328th emgordon154 826 77 487ms 22 Nov 2024 329th GrayJoKing 🇦🇺 826 108 9ms 7 Mar 2026 330th m-tkach 🇺🇦 826 170 635ms 15 Jan 2025 331st duckyluuk 🇳🇱 825 86 10ms 1 Sep 2024 332nd adamnielson42 🇺🇸 824 93 13ms 7 Oct 2024 332nd guilhem-roy 🇫🇷 824 93 10ms 31 May 2025 334th GolfingSuccess 🇬🇷 823 120 84ms 27 days ago 335th AlephSquirrel 821 109 7ms 18 Feb 2025 336th error256 821 150 27ms 5 May 2025 337th rak1507 🇬🇧 819 31 3ms 11 Sep 2024 338th primo-ppcg 🇹🇭 819 232 145ms 1 Dec 2025 339th error256 818 77 5ms 1 Sep 2024 340th MostParsingVex 818 153 44ms 3 Oct 2024 341st GrayJoKing 🇦🇺 817 84 14ms 1 Sep 2024 341st annaproxy 817 84 17ms 22 Oct 2024 343rd rucin93 🇵🇱 816 76 134ms 31 Oct 2024 344th tomtheisen 🇺🇸 816 109 438ms 8 Nov 2024 345th canissimia 🇦🇶 816 116 13ms 4 Sep 2024 346th ovs-code 🇩🇪 815 52 36ms 1 Sep 2024 347th alemelis 815 78 453ms 1 Sep 2024 347th Shanethegamer 🇺🇸 815 78 465ms 1 Sep 2024 347th SirBogman 🇺🇸 815 78 516ms 4 Sep 2024 347th error256 815 78 484ms 4 Sep 2024 347th commandz0 🇺🇸 815 78 510ms 1 Sep 2025 347th Babafaba 815 78 478ms 22 Oct 2025 347th CornerMercury 🇬🇧 815 78 434ms 24 Jan 2026 354th mousetail 🇳🇱 815 94 13ms 1 Sep 2024 354th ljweel 815 94 11ms 12 Sep 2024 354th qpwoeirut 815 94 12ms 7 Feb 2025 357th Shanethegamer 🇺🇸 814 145 1,510ms 4 Sep 2024 358th albanian-laundromat 🇺🇸 812 201 4ms 23 Jan 2026 359th GolfingSuccess 🇬🇷 810 210 1,425ms 8 Feb 2025 360th error256 809 146 1,390ms 2 May 2025 361st MeWhenI 🇻🇦 808 101 129ms 3 Sep 2024 362nd msbranicky 806 95 11ms 1 Sep 2024 362nd Bulmenisaurus 806 95 12ms 4 Sep 2024 362nd btjones0 806 95 10ms 13 Sep 2024 362nd jfallon1997 806 95 10ms 26 Sep 2024 362nd jacekwladzinski 806 95 10ms 7 Oct 2025 362nd aalec 806 95 10ms 8 Nov 2025 368th emgordon154 806 211 1,427ms 24 Jan 2025 369th MeWhenI 🇻🇦 805 157 14ms 7 Sep 2024 370th namelessiw 802 111 432ms 22 Apr 2025 371st nwellnhof 🇩🇪 802 134 456ms 2 Sep 2024 371st tailorspy 802 134 581ms 16 Sep 2024 373rd ovs-code 🇩🇪 802 175 9ms 30 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 26 days ago 381st stefangimmillaro 797 166 334ms 4 Sep 2024 382nd MeWhenI 🇻🇦 795 80 450ms 1 Sep 2024 382nd GrayJoKing 🇦🇺 795 80 436ms 2 Sep 2024 384th lifthrasiir 🇰🇷 794 32 2ms 29 Nov 2024 384th emgordon154 794 32 2ms 11 Mar 2026 386th JayXon 🇺🇸 792 273 1,691ms 21 hours ago 387th mousetail 🇳🇱 791 62 59ms 3 Sep 2024 387th GolfingSuccess 🇬🇷 791 62 10ms 2 Dec 2025 389th o0BlackDragon0o 790 97 15ms 8 Sep 2024 389th Bombalech 790 97 11ms 8 Sep 2024 389th Carlettos1 790 97 13ms 14 Sep 2024 392nd MostParsingVex 790 156 65ms 17 days ago 393rd rzv-me 788 80 5ms 5 Oct 2024 394th sean-niemann 🇺🇸 788 113 458ms 5 Sep 2024 395th albanian-laundromat 🇺🇸 787 114 2ms 27 Nov 2025 396th emplv 🇱🇻 785 79 157ms 1 Nov 2024 397th dokutan 785 104 203ms 1 Sep 2024 398th error256 785 154 201ms 12 Feb 2026 399th HumanoidCPU 782 98 11ms 2 Sep 2024 399th dtbao20 🇻🇳 782 98 22ms 30 Sep 2024 First Prev 321–400 of 870 Next Last