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 Dragon Curve 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 Dragon Curve 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 641st KatieLG 🇬🇧 591 135 103ms 21 Nov 2025 642nd luuumine 🇫🇷 591 204 211ms 18 Nov 2025 643rd DialFrost 🇸🇬 588 107 6ms 1 Sep 2024 644th cbrt-x 586 151 121ms 11 Sep 2024 645th dokutan 586 181 41ms 1 Sep 2024 646th Mabeloid 🇳🇴 583 109 569ms 17 Sep 2024 647th snoozingnewt 🇨🇦 583 226 326ms 1 Sep 2024 648th muser-logiccpu 🇺🇦 581 119 2ms 23 Jul 2025 649th GeorgeStechman 🇬🇧 581 122 11ms 5 Nov 2024 649th gigaprofisi 🇺🇸 581 122 10ms 10 Aug 2025 651st dokutan 580 107 159ms 14 Feb 2026 652nd JohandeRuiter 🇳🇱 578 156 2ms 2 Sep 2024 653rd xyangst 577 123 11ms 15 Oct 2024 654th vhoulbreque 🇫🇷 577 146 182ms 11 Nov 2025 655th emgordon154 575 133 13ms 16 Dec 2024 656th dokutan 573 75 1,280ms 29 Aug 2025 657th dokutan 572 74 42ms 20 Feb 2025 658th dokutan 569 132 3ms 1 Sep 2024 659th TeodorDyakov 🇧🇬 567 159 2ms 6 Sep 2025 660th emgordon154 566 113 111ms 4 Dec 2025 661st TheZwierzLF 🇵🇱 565 75 39ms 27 Dec 2025 662nd HumanoidCPU 564 110 132ms 22 Nov 2025 663rd tomh1012 563 126 11ms 18 Sep 2025 664th smiksky 🇺🇸 563 136 10ms 16 Oct 2024 665th MostParsingVex 563 160 27ms 30 Sep 2024 666th RedzGoose 🇦🇺 560 145 108ms 9 Sep 2024 667th Stockoh 🇫🇷 559 137 10ms 17 Oct 2024 668th msbranicky 556 135 3ms 1 Sep 2024 669th brimstonetrader 555 138 11ms 17 Oct 2024 670th jusaka 550 40 40ms 9 days ago 671st dokutan 544 155 220ms 1 Sep 2024 672nd jusaka 543 163 132ms 8 days ago 673rd DialFrost 🇸🇬 542 76 17ms 1 Aug 2025 674th Shanethegamer 🇺🇸 542 206 32ms 4 Sep 2024 675th KatieLG 🇬🇧 540 128 2ms 2 Oct 2025 676th mm1013g 540 142 10ms 2 Sep 2024 677th albanian-laundromat 🇺🇸 540 352 11ms 18 Sep 2025 678th Shanethegamer 🇺🇸 539 91 22ms 1 Sep 2024 679th snoozingnewt 🇨🇦 536 79 47ms 12 Oct 2025 680th Shanethegamer 🇺🇸 534 183 480ms 24 Sep 2025 681st trijin 533 118 5ms 5 Oct 2024 682nd AstroOrbis 527 145 6ms 25 Feb 2026 683rd tomh1012 526 169 407ms 17 Sep 2025 684th pickerj 525 146 11ms 12 Sep 2024 685th ravnskjaer 🇩🇰 525 186 507ms 15 Dec 2025 686th jusaka 521 422 1,725ms 9 days ago 687th CaedenHarper 🇨🇦 520 188 515ms 3 Oct 2025 688th error256 516 134 2ms 24 Sep 2024 689th dokutan 513 174 9ms 28 Feb 2026 690th rboath 510 159 97ms 18 Dec 2024 691st dbut2 🇦🇺 505 261 337ms 3 Sep 2024 692nd snoozingnewt 🇨🇦 503 141 10ms 12 Oct 2025 693rd MeWhenI 🇻🇦 499 86 1,191ms 15 Sep 2025 694th LukeBridges 🇬🇧 499 142 11ms 3 Sep 2024 695th snoozingnewt 🇨🇦 499 160 111ms 1 Sep 2024 696th MeWhenI 🇻🇦 498 181 2ms 13 Jun 2025 697th rucin93 🇵🇱 494 152 3ms 17 days ago 698th HunterC14 494 155 12ms 21 Oct 2024 699th mateusz-sterczewski 492 86 40ms 15 Jan 2026 700th madex 🇩🇪 492 183 2ms 2 Sep 2024 701st codewrite 🇬🇧 491 181 492ms 30 Dec 2025 702nd Naitzirch 🇳🇱 485 158 11ms 3 Jul 2025 703rd alphafalfa 484 105 4ms 1 Nov 2024 704th KatieLG 🇬🇧 481 292 7ms 1 Sep 2024 705th snoozingnewt 🇨🇦 480 185 420ms 4 Oct 2025 706th rucin93 🇵🇱 480 251 232ms 5 Sep 2024 707th snoozingnewt 🇨🇦 477 189 2ms 9 Oct 2025 708th junkondo-jp 476 149 10ms 15 Dec 2024 709th DialFrost 🇸🇬 472 207 455ms 24 Sep 2025 710th R4z0rX 467 152 11ms 1 Sep 2024 711th jusaka 467 263 45ms 9 days ago 712th Apzyte-Gamer 464 165 11ms 28 Oct 2024 713th iczelia 🇩🇪 464 194 2ms 11 Oct 2025 714th Jacob385 461 212 437ms 4 days ago 715th JOrE20 457 268 28ms 11 Feb 2026 716th jusaka 457 357 4ms 8 days ago 717th scpchicken 🇵🇼 456 82 6ms 11 days ago 718th jusaka 456 214 787ms 9 days ago 719th two-bad 🇬🇧 455 156 11ms 4 Oct 2024 720th Shanethegamer 🇺🇸 454 141 110ms 4 Dec 2025 First Prev 641–720 of 844 Next Last