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 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 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 ><> ALGOL 68 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 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 ><> ALGOL 68 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 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 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 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 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 TheZwierzLF 🇵🇱 564 75 36ms 27 Dec 2025 642nd HumanoidCPU 563 110 150ms 22 Nov 2025 643rd emgordon154 563 113 111ms 4 Dec 2025 644th smiksky 🇺🇸 563 136 10ms 16 Oct 2024 645th tomh1012 562 126 10ms 18 Sep 2025 646th MostParsingVex 562 160 33ms 30 Sep 2024 647th dokutan 561 132 3ms 1 Sep 2024 648th Stockoh 🇫🇷 559 137 11ms 17 Oct 2024 649th RedzGoose 🇦🇺 557 145 125ms 9 Sep 2024 650th brimstonetrader 555 138 10ms 17 Oct 2024 651st emgordon154 554 138 11ms 1 Jan 2025 652nd msbranicky 548 135 3ms 1 Sep 2024 653rd DialFrost 🇸🇬 539 76 1,023ms 1 Aug 2025 654th KatieLG 🇬🇧 539 128 2ms 2 Oct 2025 655th mm1013g 539 142 10ms 2 Sep 2024 656th dokutan 539 155 242ms 1 Sep 2024 657th Shanethegamer 🇺🇸 538 91 22ms 1 Sep 2024 658th snoozingnewt 🇨🇦 535 79 34ms 12 Oct 2025 659th albanian-laundromat 533 352 11ms 18 Sep 2025 660th trijin 532 118 4ms 5 Oct 2024 661st Shanethegamer 🇺🇸 532 183 492ms 24 Sep 2025 662nd AstroOrbis 525 145 6ms 15 days ago 663rd tomh1012 525 169 457ms 17 Sep 2025 664th pickerj 524 146 11ms 12 Sep 2024 665th ravnskjaer 🇩🇰 523 186 478ms 15 Dec 2025 666th CaedenHarper 🇨🇦 518 188 493ms 3 Oct 2025 667th error256 515 134 2ms 24 Sep 2024 668th dokutan 507 174 10ms 12 days ago 669th rboath 506 159 109ms 18 Dec 2024 670th dbut2 🇦🇺 504 261 275ms 3 Sep 2024 671st madex 🇩🇪 503 84 36ms 1 Sep 2024 672nd snoozingnewt 🇨🇦 502 141 11ms 12 Oct 2025 673rd LukeBridges 🇬🇧 499 142 10ms 3 Sep 2024 674th MeWhenI 🇻🇦 498 86 919ms 15 Sep 2025 675th snoozingnewt 🇨🇦 497 160 102ms 1 Sep 2024 676th MeWhenI 🇻🇦 497 181 2ms 13 Jun 2025 677th HunterC14 494 155 10ms 21 Oct 2024 678th mateusz-sterczewski 492 86 36ms 15 Jan 2026 679th madex 🇩🇪 491 183 2ms 2 Sep 2024 680th codewrite 🇬🇧 490 181 433ms 30 Dec 2025 681st Naitzirch 🇳🇱 485 158 10ms 3 Jul 2025 682nd alphafalfa 480 105 4ms 1 Nov 2024 683rd snoozingnewt 🇨🇦 479 185 441ms 4 Oct 2025 684th rucin93 🇵🇱 478 251 227ms 5 Sep 2024 685th snoozingnewt 🇨🇦 476 189 2ms 9 Oct 2025 686th junkondo-jp 475 149 11ms 15 Dec 2024 687th KatieLG 🇬🇧 475 292 8ms 1 Sep 2024 688th DialFrost 🇸🇬 470 207 566ms 24 Sep 2025 689th R4z0rX 466 152 10ms 1 Sep 2024 690th Apzyte-Gamer 464 165 10ms 28 Oct 2024 691st iczelia 🇩🇪 463 194 2ms 11 Oct 2025 692nd two-bad 🇬🇧 454 156 10ms 4 Oct 2024 693rd CyberTapir 453 169 10ms 1 Sep 2024 694th JOrE20 453 268 28ms 11 Feb 2026 695th Shanethegamer 🇺🇸 451 141 110ms 4 Dec 2025 696th snoozingnewt 🇨🇦 449 186 8ms 1 Sep 2024 697th msbranicky 446 269 232ms 1 Sep 2024 698th IISResetMe 439 106 391ms 3 Jan 2026 699th Shanethegamer 🇺🇸 438 115 2ms 1 Sep 2024 700th rollershutter 435 176 10ms 18 Nov 2024 701st Yax42 🇫🇷 435 224 471ms 5 Oct 2025 702nd ehulinsky 🇺🇸 432 122 3ms 3 Apr 2025 703rd Yewzir 🇧🇪 428 179 11ms 1 Dec 2025 704th aksyristos 419 101 36ms 17 Nov 2024 705th amazingalek 🇳🇴 411 216 405ms 26 Jan 2026 706th MeWhenI 🇻🇦 411 260 88ms 13 Jun 2025 707th Jacob385 406 240 393ms 4 Sep 2024 708th bac0id 402 266 3,023ms 10 Jan 2025 709th zakariamouhid 398 178 11ms 14 Sep 2024 710th galloj 🇨🇿 396 101 10ms 4 Sep 2024 711th varhammer 379 235 8ms 20 Oct 2025 712th Yewzir 🇧🇪 371 171 620ms 1 Dec 2025 713th nemoyatpeace 368 208 10ms 16 Jan 2026 714th Giantnoodlemonster 365 246 2ms 27 Sep 2024 715th MeWhenI 🇻🇦 363 135 7ms 26 Sep 2024 716th Mikey-Beep 🇬🇧 354 193 14ms 13 Aug 2025 717th AidanWalter 346 221 10ms 3 Jan 2025 718th Imsmelkov 327 298 448ms 22 Jan 2026 719th timhaj 🇸🇮 320 239 11ms 19 Sep 2024 720th dokutan 310 261 131ms 13 days ago First Prev 641–720 of 765 Next Last