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 Mabeloid 🇳🇴 583 109 569ms 17 Sep 2024 642nd dokutan 582 181 41ms 1 Sep 2024 643rd snoozingnewt 🇨🇦 582 226 326ms 1 Sep 2024 644th GeorgeStechman 🇬🇧 581 122 13ms 5 Nov 2024 644th gigaprofisi 🇺🇸 581 122 9ms 10 Aug 2025 646th flekAI 580 73 38ms 54 mins ago 647th muser-logiccpu 🇺🇦 580 119 2ms 23 Jul 2025 648th dokutan 578 107 165ms 14 Feb 2026 649th xyangst 576 123 10ms 15 Oct 2024 650th JohandeRuiter 🇳🇱 576 156 2ms 2 Sep 2024 651st emgordon154 573 133 14ms 16 Dec 2024 652nd vhoulbreque 🇫🇷 573 146 182ms 11 Nov 2025 653rd dokutan 572 74 37ms 20 Feb 2025 654th dokutan 571 75 1,157ms 29 Aug 2025 655th TheZwierzLF 🇵🇱 565 75 35ms 27 Dec 2025 656th dokutan 565 132 3ms 1 Sep 2024 657th TeodorDyakov 🇧🇬 565 159 2ms 6 Sep 2025 658th HumanoidCPU 563 110 151ms 22 Nov 2025 659th emgordon154 563 113 111ms 4 Dec 2025 660th tomh1012 563 126 10ms 18 Sep 2025 661st smiksky 🇺🇸 563 136 10ms 16 Oct 2024 662nd MostParsingVex 562 160 33ms 30 Sep 2024 663rd Stockoh 🇫🇷 559 137 10ms 17 Oct 2024 664th flekAI 558 127 10ms 50 mins ago 665th RedzGoose 🇦🇺 557 145 126ms 9 Sep 2024 666th brimstonetrader 555 138 11ms 17 Oct 2024 667th msbranicky 552 135 3ms 1 Sep 2024 668th DialFrost 🇸🇬 539 76 1,023ms 1 Aug 2025 669th KatieLG 🇬🇧 539 128 2ms 2 Oct 2025 670th mm1013g 539 142 10ms 2 Sep 2024 671st dokutan 539 155 220ms 1 Sep 2024 672nd Shanethegamer 🇺🇸 538 91 22ms 1 Sep 2024 673rd snoozingnewt 🇨🇦 536 79 37ms 12 Oct 2025 674th Shanethegamer 🇺🇸 536 206 32ms 4 Sep 2024 675th albanian-laundromat 🇺🇸 533 352 11ms 18 Sep 2025 676th trijin 532 118 6ms 5 Oct 2024 677th Shanethegamer 🇺🇸 532 183 492ms 24 Sep 2025 678th AstroOrbis 525 145 7ms 25 Feb 2026 679th pickerj 525 146 11ms 12 Sep 2024 680th tomh1012 525 169 405ms 17 Sep 2025 681st ravnskjaer 🇩🇰 523 186 469ms 15 Dec 2025 682nd CaedenHarper 🇨🇦 518 188 493ms 3 Oct 2025 683rd error256 515 134 2ms 24 Sep 2024 684th dokutan 507 174 10ms 28 Feb 2026 685th rboath 506 159 97ms 18 Dec 2024 686th dbut2 🇦🇺 504 261 337ms 3 Sep 2024 687th snoozingnewt 🇨🇦 503 141 10ms 12 Oct 2025 688th LukeBridges 🇬🇧 499 142 13ms 3 Sep 2024 689th MeWhenI 🇻🇦 498 86 1,062ms 15 Sep 2025 690th snoozingnewt 🇨🇦 497 160 108ms 1 Sep 2024 691st MeWhenI 🇻🇦 497 181 2ms 13 Jun 2025 692nd HunterC14 494 155 12ms 21 Oct 2024 693rd mateusz-sterczewski 492 86 36ms 15 Jan 2026 694th rucin93 🇵🇱 491 152 3ms 5 days ago 695th madex 🇩🇪 491 183 2ms 2 Sep 2024 696th codewrite 🇬🇧 490 181 430ms 30 Dec 2025 697th Naitzirch 🇳🇱 485 158 11ms 3 Jul 2025 698th alphafalfa 480 105 4ms 1 Nov 2024 699th snoozingnewt 🇨🇦 479 185 407ms 4 Oct 2025 700th rucin93 🇵🇱 479 251 243ms 5 Sep 2024 701st junkondo-jp 476 149 9ms 15 Dec 2024 702nd snoozingnewt 🇨🇦 476 189 2ms 9 Oct 2025 703rd KatieLG 🇬🇧 475 292 7ms 1 Sep 2024 704th DialFrost 🇸🇬 470 207 501ms 24 Sep 2025 705th R4z0rX 466 152 9ms 1 Sep 2024 706th Apzyte-Gamer 464 165 11ms 28 Oct 2024 707th iczelia 🇩🇪 463 194 2ms 11 Oct 2025 708th two-bad 🇬🇧 454 156 10ms 4 Oct 2024 709th CyberTapir 453 169 10ms 1 Sep 2024 710th JOrE20 453 268 28ms 11 Feb 2026 711th Shanethegamer 🇺🇸 451 141 110ms 4 Dec 2025 712th snoozingnewt 🇨🇦 449 186 8ms 1 Sep 2024 713th msbranicky 447 269 242ms 1 Sep 2024 714th IISResetMe 439 106 438ms 3 Jan 2026 715th Shanethegamer 🇺🇸 438 115 2ms 1 Sep 2024 716th rollershutter 435 176 11ms 18 Nov 2024 717th Yax42 🇫🇷 435 224 471ms 5 Oct 2025 718th ehulinsky 🇺🇸 432 122 3ms 3 Apr 2025 719th Yewzir 🇧🇪 428 179 12ms 1 Dec 2025 720th aksyristos 419 101 37ms 17 Nov 2024 First Prev 641–720 of 781 Next Last