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 586 181 41ms 1 Sep 2024 642nd cbrt-x 585 151 121ms 11 Sep 2024 643rd Mabeloid 🇳🇴 583 109 569ms 17 Sep 2024 644th snoozingnewt 🇨🇦 583 226 326ms 1 Sep 2024 645th muser-logiccpu 🇺🇦 581 119 2ms 23 Jul 2025 646th GeorgeStechman 🇬🇧 581 122 13ms 5 Nov 2024 646th gigaprofisi 🇺🇸 581 122 9ms 10 Aug 2025 648th flekAI 580 73 38ms 22 hours ago 649th dokutan 578 107 165ms 14 Feb 2026 650th JohandeRuiter 🇳🇱 578 156 2ms 2 Sep 2024 651st vhoulbreque 🇫🇷 577 146 182ms 11 Nov 2025 652nd xyangst 576 123 10ms 15 Oct 2024 653rd emgordon154 575 133 14ms 16 Dec 2024 654th dokutan 573 75 1,157ms 29 Aug 2025 655th dokutan 572 74 37ms 20 Feb 2025 656th TeodorDyakov 🇧🇬 567 159 2ms 6 Sep 2025 657th TheZwierzLF 🇵🇱 565 75 35ms 27 Dec 2025 658th dokutan 565 132 3ms 1 Sep 2024 659th HumanoidCPU 563 110 151ms 22 Nov 2025 660th emgordon154 563 113 111ms 4 Dec 2025 661st tomh1012 563 126 10ms 18 Sep 2025 662nd smiksky 🇺🇸 563 136 10ms 16 Oct 2024 663rd MostParsingVex 563 160 33ms 30 Sep 2024 664th RedzGoose 🇦🇺 560 145 126ms 9 Sep 2024 665th Stockoh 🇫🇷 559 137 10ms 17 Oct 2024 666th flekAI 558 127 10ms 22 hours ago 667th brimstonetrader 555 138 11ms 17 Oct 2024 668th msbranicky 552 135 3ms 1 Sep 2024 669th dokutan 544 155 220ms 1 Sep 2024 670th KatieLG 🇬🇧 540 128 2ms 2 Oct 2025 671st DialFrost 🇸🇬 539 76 1,023ms 1 Aug 2025 672nd mm1013g 539 142 10ms 2 Sep 2024 673rd Shanethegamer 🇺🇸 538 91 22ms 1 Sep 2024 674th snoozingnewt 🇨🇦 536 79 37ms 12 Oct 2025 675th Shanethegamer 🇺🇸 536 206 32ms 4 Sep 2024 676th trijin 533 118 6ms 5 Oct 2024 677th Shanethegamer 🇺🇸 533 183 492ms 24 Sep 2025 678th albanian-laundromat 🇺🇸 533 352 11ms 18 Sep 2025 679th AstroOrbis 527 145 7ms 25 Feb 2026 680th tomh1012 526 169 405ms 17 Sep 2025 681st pickerj 525 146 11ms 12 Sep 2024 682nd ravnskjaer 🇩🇰 524 186 469ms 15 Dec 2025 683rd CaedenHarper 🇨🇦 519 188 493ms 3 Oct 2025 684th error256 516 134 2ms 24 Sep 2024 685th rboath 510 159 97ms 18 Dec 2024 686th dokutan 507 174 10ms 28 Feb 2026 687th dbut2 🇦🇺 505 261 337ms 3 Sep 2024 688th snoozingnewt 🇨🇦 503 141 10ms 12 Oct 2025 689th MeWhenI 🇻🇦 499 86 1,062ms 15 Sep 2025 690th LukeBridges 🇬🇧 499 142 13ms 3 Sep 2024 691st snoozingnewt 🇨🇦 499 160 108ms 1 Sep 2024 692nd MeWhenI 🇻🇦 498 181 2ms 13 Jun 2025 693rd HunterC14 494 155 12ms 21 Oct 2024 694th mateusz-sterczewski 492 86 36ms 15 Jan 2026 695th madex 🇩🇪 492 183 2ms 2 Sep 2024 696th rucin93 🇵🇱 491 152 3ms 5 days ago 697th codewrite 🇬🇧 491 181 430ms 30 Dec 2025 698th flekAI 487 241 1,321ms 18 hours ago 699th Naitzirch 🇳🇱 485 158 11ms 3 Jul 2025 700th alphafalfa 480 105 4ms 1 Nov 2024 701st snoozingnewt 🇨🇦 480 185 407ms 4 Oct 2025 702nd rucin93 🇵🇱 480 251 243ms 5 Sep 2024 703rd snoozingnewt 🇨🇦 477 189 2ms 9 Oct 2025 704th junkondo-jp 476 149 9ms 15 Dec 2024 705th KatieLG 🇬🇧 475 292 7ms 1 Sep 2024 706th DialFrost 🇸🇬 471 207 501ms 24 Sep 2025 707th R4z0rX 466 152 9ms 1 Sep 2024 708th Apzyte-Gamer 464 165 11ms 28 Oct 2024 709th iczelia 🇩🇪 464 194 2ms 11 Oct 2025 710th JOrE20 457 268 28ms 11 Feb 2026 711th two-bad 🇬🇧 454 156 10ms 4 Oct 2024 712th CyberTapir 453 169 10ms 1 Sep 2024 713th snoozingnewt 🇨🇦 453 186 8ms 1 Sep 2024 714th Shanethegamer 🇺🇸 451 141 110ms 4 Dec 2025 715th msbranicky 448 269 242ms 1 Sep 2024 716th flekAI 442 273 183ms 18 hours ago 717th IISResetMe 439 106 438ms 3 Jan 2026 718th Shanethegamer 🇺🇸 438 115 2ms 1 Sep 2024 719th rollershutter 435 176 11ms 18 Nov 2024 720th Yax42 🇫🇷 435 224 471ms 5 Oct 2025 First Prev 641–720 of 809 Next Last