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 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 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 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> 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 ALGOL 68 APL ArkScript 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 ><> 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 ALGOL 68 APL ArkScript 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 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 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 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 641st JOrE20 558 127 9ms 23 Dec 2025 642nd brimstonetrader 555 138 10ms 17 Oct 2024 643rd RedzGoose 🇦🇺 553 145 113ms 9 Sep 2024 644th msbranicky 548 135 3ms 1 Sep 2024 645th DialFrost 🇸🇬 539 76 1,023ms 1 Aug 2025 646th KatieLG 🇬🇧 539 128 2ms 2 Oct 2025 647th mm1013g 539 142 10ms 2 Sep 2024 648th dokutan 539 155 242ms 1 Sep 2024 649th Shanethegamer 🇺🇸 538 91 22ms 1 Sep 2024 650th snoozingnewt 🇨🇦 535 79 34ms 12 Oct 2025 651st albanian-laundromat 533 352 11ms 18 Sep 2025 652nd Shanethegamer 🇺🇸 531 183 506ms 24 Sep 2025 653rd trijin 530 118 4ms 5 Oct 2024 654th tomh1012 525 169 457ms 17 Sep 2025 655th pickerj 524 146 12ms 12 Sep 2024 656th ravnskjaer 🇩🇰 522 186 478ms 15 Dec 2025 657th CaedenHarper 🇨🇦 517 188 493ms 3 Oct 2025 658th error256 515 134 2ms 24 Sep 2024 659th Shanethegamer 🇺🇸 512 141 147ms 4 Dec 2025 660th rboath 506 159 109ms 18 Dec 2024 661st madex 🇩🇪 503 84 36ms 1 Sep 2024 662nd snoozingnewt 🇨🇦 502 141 10ms 12 Oct 2025 663rd dbut2 🇦🇺 502 261 291ms 3 Sep 2024 664th LukeBridges 🇬🇧 499 142 10ms 3 Sep 2024 665th MeWhenI 🇻🇦 498 86 919ms 15 Sep 2025 666th snoozingnewt 🇨🇦 497 160 101ms 1 Sep 2024 667th MeWhenI 🇻🇦 497 181 2ms 13 Jun 2025 668th HunterC14 494 155 13ms 21 Oct 2024 669th mateusz-sterczewski 492 86 36ms 15 Jan 2026 670th madex 🇩🇪 491 183 2ms 2 Sep 2024 671st codewrite 🇬🇧 490 181 433ms 30 Dec 2025 672nd Naitzirch 🇳🇱 485 158 10ms 3 Jul 2025 673rd alphafalfa 480 105 4ms 1 Nov 2024 674th snoozingnewt 🇨🇦 479 185 441ms 4 Oct 2025 675th rucin93 🇵🇱 478 251 235ms 5 Sep 2024 676th snoozingnewt 🇨🇦 476 189 2ms 9 Oct 2025 677th junkondo-jp 475 149 11ms 15 Dec 2024 678th KatieLG 🇬🇧 475 292 7ms 1 Sep 2024 679th DialFrost 🇸🇬 469 207 566ms 24 Sep 2025 680th R4z0rX 466 152 10ms 1 Sep 2024 681st Apzyte-Gamer 464 165 10ms 28 Oct 2024 682nd iczelia 🇩🇪 463 194 2ms 11 Oct 2025 683rd two-bad 🇬🇧 454 156 9ms 4 Oct 2024 684th CyberTapir 453 169 10ms 1 Sep 2024 685th JOrE20 453 268 28ms 7 days ago 686th snoozingnewt 🇨🇦 449 186 8ms 1 Sep 2024 687th msbranicky 446 269 231ms 1 Sep 2024 688th IISResetMe 439 106 391ms 3 Jan 2026 689th Shanethegamer 🇺🇸 438 115 2ms 1 Sep 2024 690th rollershutter 435 176 12ms 18 Nov 2024 691st Yax42 🇫🇷 434 224 471ms 5 Oct 2025 692nd ehulinsky 🇺🇸 432 122 3ms 3 Apr 2025 693rd Yewzir 🇧🇪 428 179 11ms 1 Dec 2025 694th aksyristos 419 101 36ms 17 Nov 2024 695th amazingalek 🇳🇴 411 216 446ms 23 days ago 696th MeWhenI 🇻🇦 411 260 72ms 13 Jun 2025 697th Jacob385 405 240 393ms 4 Sep 2024 698th bac0id 402 266 2,538ms 10 Jan 2025 699th zakariamouhid 398 178 12ms 14 Sep 2024 700th galloj 🇨🇿 396 101 10ms 4 Sep 2024 701st varhammer 🇷🇺 379 235 8ms 20 Oct 2025 702nd Yewzir 🇧🇪 371 171 620ms 1 Dec 2025 703rd nemoyatpeace 368 208 10ms 16 Jan 2026 704th Giantnoodlemonster 365 246 2ms 27 Sep 2024 705th MeWhenI 🇻🇦 363 135 7ms 26 Sep 2024 706th Mikey-Beep 🇬🇧 354 193 14ms 13 Aug 2025 707th AidanWalter 346 221 11ms 3 Jan 2025 708th Imsmelkov 326 298 448ms 27 days ago 709th timhaj 🇸🇮 320 239 11ms 19 Sep 2024 710th snoozingnewt 🇨🇦 308 209 133ms 1 Sep 2024 711th nephila-nacrea 🇬🇧 283 132 3ms 4 Sep 2024 712th bidger 263 369 410ms 20 Sep 2024 713th KatieLG 🇬🇧 262 459 1,383ms 15 Sep 2024 714th KatieLG 🇬🇧 261 460 208ms 15 Sep 2024 715th snoozingnewt 🇨🇦 241 444 1,081ms 6 Oct 2025 716th KatieLG 🇬🇧 200 401 149ms 15 Sep 2024 717th KatieLG 🇬🇧 191 398 7ms 15 Sep 2024 718th KatieLG 🇬🇧 171 768 287ms 15 Sep 2024 719th KatieLG 🇬🇧 113 466 3ms 15 Sep 2024 720th Msleizak 🇫🇷 110 424 283ms 7 Feb 2025 First Prev 641–720 of 748 Next Last