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 641st dokutan 590 181 41ms 1 Sep 2024 642nd DialFrost 🇸🇬 589 107 6ms 1 Sep 2024 643rd cbrt-x 586 151 121ms 11 Sep 2024 644th snoozingnewt 🇨🇦 585 226 326ms 1 Sep 2024 645th Mabeloid 🇳🇴 583 109 569ms 17 Sep 2024 646th muser-logiccpu 🇺🇦 582 119 2ms 23 Jul 2025 647th GeorgeStechman 🇬🇧 581 122 12ms 5 Nov 2024 647th gigaprofisi 🇺🇸 581 122 11ms 10 Aug 2025 649th vhoulbreque 🇫🇷 581 146 182ms 11 Nov 2025 650th flekAI 580 73 38ms 4 days ago 651st dokutan 580 107 165ms 14 Feb 2026 652nd JohandeRuiter 🇳🇱 579 156 2ms 2 Sep 2024 653rd xyangst 577 123 10ms 15 Oct 2024 654th emgordon154 577 133 14ms 16 Dec 2024 655th dokutan 574 75 1,157ms 29 Aug 2025 656th dokutan 573 74 37ms 20 Feb 2025 657th dokutan 569 132 3ms 1 Sep 2024 658th TeodorDyakov 🇧🇬 568 159 2ms 6 Sep 2025 659th emgordon154 566 113 111ms 4 Dec 2025 660th TheZwierzLF 🇵🇱 565 75 35ms 27 Dec 2025 661st HumanoidCPU 564 110 151ms 22 Nov 2025 662nd MostParsingVex 564 160 27ms 30 Sep 2024 663rd tomh1012 563 126 11ms 18 Sep 2025 664th smiksky 🇺🇸 563 136 10ms 16 Oct 2024 665th RedzGoose 🇦🇺 563 145 126ms 9 Sep 2024 666th Stockoh 🇫🇷 559 137 10ms 17 Oct 2024 667th flekAI 558 127 10ms 4 days ago 668th msbranicky 556 135 3ms 1 Sep 2024 669th brimstonetrader 555 138 11ms 17 Oct 2024 670th jusaka 550 40 46ms 29 hours ago 671st dokutan 548 155 220ms 1 Sep 2024 672nd jusaka 543 163 133ms 3 hours ago 673rd DialFrost 🇸🇬 542 76 1,023ms 1 Aug 2025 674th Shanethegamer 🇺🇸 542 206 32ms 4 Sep 2024 675th KatieLG 🇬🇧 541 128 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 37ms 12 Oct 2025 680th trijin 534 118 5ms 5 Oct 2024 681st Shanethegamer 🇺🇸 534 183 492ms 24 Sep 2025 682nd AstroOrbis 529 145 7ms 25 Feb 2026 683rd tomh1012 527 169 420ms 17 Sep 2025 684th pickerj 525 146 11ms 12 Sep 2024 685th ravnskjaer 🇩🇰 525 186 469ms 15 Dec 2025 686th CaedenHarper 🇨🇦 520 188 493ms 3 Oct 2025 687th error256 517 134 2ms 24 Sep 2024 688th rboath 513 159 97ms 18 Dec 2024 689th dokutan 513 174 10ms 28 Feb 2026 690th jusaka 512 422 1,725ms 23 hours ago 691st dbut2 🇦🇺 507 261 337ms 3 Sep 2024 692nd snoozingnewt 🇨🇦 503 141 11ms 12 Oct 2025 693rd MeWhenI 🇻🇦 500 86 1,062ms 15 Sep 2025 694th snoozingnewt 🇨🇦 500 160 108ms 1 Sep 2024 695th LukeBridges 🇬🇧 499 142 11ms 3 Sep 2024 696th MeWhenI 🇻🇦 499 181 2ms 13 Jun 2025 697th rucin93 🇵🇱 494 152 3ms 9 days ago 698th HunterC14 494 155 12ms 21 Oct 2024 699th mateusz-sterczewski 493 86 36ms 15 Jan 2026 700th madex 🇩🇪 493 183 2ms 2 Sep 2024 701st codewrite 🇬🇧 492 181 427ms 30 Dec 2025 702nd flekAI 490 241 1,445ms 3 days ago 703rd Naitzirch 🇳🇱 485 158 11ms 3 Jul 2025 704th alphafalfa 484 105 4ms 1 Nov 2024 705th snoozingnewt 🇨🇦 481 185 450ms 4 Oct 2025 706th rucin93 🇵🇱 481 251 243ms 5 Sep 2024 707th KatieLG 🇬🇧 481 292 7ms 1 Sep 2024 708th snoozingnewt 🇨🇦 478 189 2ms 9 Oct 2025 709th junkondo-jp 476 149 11ms 15 Dec 2024 710th jusaka 476 263 45ms 19 hours ago 711th DialFrost 🇸🇬 472 207 501ms 24 Sep 2025 712th R4z0rX 467 152 11ms 1 Sep 2024 713th iczelia 🇩🇪 465 194 2ms 11 Oct 2025 714th Apzyte-Gamer 464 165 11ms 28 Oct 2024 715th JOrE20 460 268 28ms 11 Feb 2026 716th scpchicken 🇵🇼 457 82 6ms 2 days ago 717th jusaka 457 357 4ms 3 hours ago 718th snoozingnewt 🇨🇦 456 186 8ms 1 Sep 2024 719th jusaka 456 214 400ms 27 hours ago 720th two-bad 🇬🇧 455 156 11ms 4 Oct 2024 First Prev 641–720 of 870 Next Last