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 adamnielson42 🇺🇸 824 93 10ms 7 Oct 2024 321st guilhem-roy 🇫🇷 824 93 10ms 31 May 2025 323rd error256 824 98 140ms 12 Feb 2026 324th CLOStrophobic 🇮🇹 824 108 6ms 19 Feb 2025 325th edsrzf 🇳🇿 823 134 34ms 19 days ago 326th rak1507 🇬🇧 819 31 3ms 11 Sep 2024 327th sean-niemann 🇺🇸 819 151 40ms 16 Jan 2025 328th JayXon 🇺🇸 818 243 1,867ms 10 Jul 2025 329th GrayJoKing 🇦🇺 817 108 7ms 25 days ago 330th AlephSquirrel 816 109 6ms 18 Feb 2025 331st canissimia 🇦🇶 816 116 13ms 4 Sep 2024 332nd m-tkach 🇺🇦 816 170 658ms 15 Jan 2025 333rd error256 815 77 5ms 1 Sep 2024 334th mousetail 🇳🇱 815 94 12ms 1 Sep 2024 334th ljweel 815 94 10ms 12 Sep 2024 334th qpwoeirut 815 94 12ms 7 Feb 2025 337th RyanMHsiao 815 244 1,916ms 25 Sep 2024 338th ovs-code 🇩🇪 814 52 36ms 1 Sep 2024 339th rucin93 🇵🇱 814 76 157ms 31 Oct 2024 340th alemelis 814 78 455ms 1 Sep 2024 340th Shanethegamer 🇺🇸 814 78 453ms 1 Sep 2024 340th SirBogman 🇺🇸 814 78 474ms 4 Sep 2024 340th error256 814 78 439ms 4 Sep 2024 340th commandz0 🇺🇸 814 78 467ms 1 Sep 2025 340th Babafaba 814 78 417ms 22 Oct 2025 340th CornerMercury 🇬🇧 814 78 477ms 24 Jan 2026 347th GrayJoKing 🇦🇺 814 84 14ms 1 Sep 2024 347th annaproxy 814 84 17ms 22 Oct 2024 349th tomtheisen 🇺🇸 814 109 413ms 8 Nov 2024 350th GolfingSuccess 🇬🇷 814 120 75ms 12 days ago 351st error256 810 150 27ms 5 May 2025 352nd MostParsingVex 809 153 42ms 3 Oct 2024 353rd primo-ppcg 🇹🇭 809 232 145ms 1 Dec 2025 354th msbranicky 806 95 10ms 1 Sep 2024 354th Bulmenisaurus 806 95 12ms 4 Sep 2024 354th btjones0 806 95 10ms 13 Sep 2024 354th jfallon1997 806 95 9ms 26 Sep 2024 354th jacekwladzinski 806 95 9ms 7 Oct 2025 354th aalec 806 95 9ms 8 Nov 2025 360th SirBogman 🇺🇸 806 155 44ms 3 Sep 2024 361st Shanethegamer 🇺🇸 805 145 1,282ms 4 Sep 2024 362nd MeWhenI 🇻🇦 805 157 15ms 7 Sep 2024 363rd GolfingSuccess 🇬🇷 805 210 1,406ms 8 Feb 2025 364th ovs-code 🇩🇪 802 175 9ms 30 Sep 2024 365th emgordon154 801 211 1,444ms 24 Jan 2025 366th MeWhenI 🇻🇦 800 101 115ms 3 Sep 2024 367th MeWhenI 🇻🇦 799 50 3ms 1 Sep 2024 367th retrohun 799 50 3ms 9 Mar 2025 369th namelessiw 799 111 457ms 22 Apr 2025 370th error256 799 146 1,341ms 2 May 2025 371st fgrosshans 🇫🇷 798 96 9ms 1 Sep 2024 371st Mikey-Beep 🇬🇧 798 96 12ms 2 Sep 2024 371st JudeTyrrell 798 96 10ms 22 Sep 2024 374th albanian-laundromat 798 201 4ms 23 Jan 2026 375th nwellnhof 🇩🇪 797 134 447ms 2 Sep 2024 375th tailorspy 797 134 575ms 16 Sep 2024 377th kg583 🇺🇸 794 112 7ms 9 May 2025 378th lifthrasiir 🇰🇷 793 32 2ms 29 Nov 2024 378th emgordon154 793 32 2ms 21 days ago 380th MeWhenI 🇻🇦 793 80 442ms 1 Sep 2024 380th GrayJoKing 🇦🇺 793 80 474ms 2 Sep 2024 382nd stefangimmillaro 792 166 276ms 4 Sep 2024 383rd o0BlackDragon0o 790 97 13ms 8 Sep 2024 383rd Bombalech 790 97 11ms 8 Sep 2024 383rd scpchicken 🇵🇼 790 97 244ms 8 Sep 2024 383rd Carlettos1 790 97 12ms 14 Sep 2024 387th mousetail 🇳🇱 789 62 59ms 3 Sep 2024 387th GolfingSuccess 🇬🇷 789 62 10ms 2 Dec 2025 389th kg583 🇺🇸 788 124 72ms 12 days ago 390th sean-niemann 🇺🇸 785 113 433ms 5 Sep 2024 391st rzv-me 784 80 5ms 5 Oct 2024 392nd emplv 🇱🇻 783 79 153ms 1 Nov 2024 393rd HumanoidCPU 782 98 10ms 2 Sep 2024 393rd dtbao20 🇻🇳 782 98 17ms 30 Sep 2024 393rd YAJUE114514 782 98 10ms 30 Jul 2025 393rd luuumine 🇫🇷 782 98 11ms 15 Oct 2025 393rd netfri25 🇮🇱 782 98 10ms 22 Feb 2026 393rd rotemkm 782 98 10ms 22 Feb 2026 399th albanian-laundromat 782 114 2ms 27 Nov 2025 400th KingSkyrock 🇺🇸 779 91 10ms 14 Oct 2024 First Prev 321–400 of 772 Next Last