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 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 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 Calendar 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 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 Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 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 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 Calendar 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 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 601st dokutan 561 132 3ms 1 Sep 2024 602nd MostParsingVex 561 160 43ms 30 Sep 2024 603rd Stockoh 🇫🇷 558 137 13ms 17 Oct 2024 604th brimstonetrader 554 138 15ms 17 Oct 2024 605th RedzGoose 🇦🇺 553 145 100ms 9 Sep 2024 606th dokutan 548 113 135ms 22 Oct 2024 607th msbranicky 548 135 3ms 1 Sep 2024 608th alphafalfa 540 105 4ms 1 Nov 2024 609th KatieLG 🇬🇧 539 128 2ms 2 Oct 2025 610th mm1013g 538 142 12ms 2 Sep 2024 611th Shanethegamer 🇺🇸 535 91 21ms 1 Sep 2024 612th snoozingnewt 🇺🇸 534 79 34ms 12 Oct 2025 613th albanian-laundromat 533 352 11ms 18 Sep 2025 614th trijin 529 118 4ms 5 Oct 2024 615th Shanethegamer 🇺🇸 526 183 333ms 24 Sep 2025 616th pickerj 524 146 15ms 12 Sep 2024 617th tomh1012 523 169 346ms 17 Sep 2025 618th error256 515 134 2ms 24 Sep 2024 619th CaedenHarper 🇨🇦 512 188 349ms 3 Oct 2025 620th rboath 506 159 92ms 18 Dec 2024 621st madex 🇩🇪 502 84 32ms 1 Sep 2024 622nd snoozingnewt 🇺🇸 502 141 8ms 12 Oct 2025 623rd dbut2 🇦🇺 502 261 252ms 3 Sep 2024 624th Shanethegamer 🇺🇸 501 143 110ms 3 days ago 625th LukeBridges 🇬🇧 498 142 9ms 3 Sep 2024 626th snoozingnewt 🇺🇸 497 160 101ms 1 Sep 2024 627th MeWhenI 🇻🇦 496 181 2ms 13 Jun 2025 628th Shanethegamer 🇺🇸 493 115 2ms 1 Sep 2024 629th HunterC14 493 155 13ms 21 Oct 2024 630th madex 🇩🇪 490 183 2ms 2 Sep 2024 631st Naitzirch 🇳🇱 484 158 12ms 3 Jul 2025 632nd snoozingnewt 🇺🇸 478 185 356ms 4 Oct 2025 633rd rucin93 🇵🇱 476 251 230ms 5 Sep 2024 634th junkondo-jp 475 149 8ms 15 Dec 2024 635th snoozingnewt 🇺🇸 475 189 2ms 9 Oct 2025 636th KatieLG 🇬🇧 475 292 6ms 1 Sep 2024 637th janAkali 🇷🇺 470 171 332ms 17 May 2025 638th R4z0rX 466 152 9ms 1 Sep 2024 639th DialFrost 🇸🇬 465 207 337ms 24 Sep 2025 640th Apzyte-Gamer 463 165 14ms 28 Oct 2024 641st iczelia 🇩🇪 462 194 2ms 11 Oct 2025 642nd two-bad 🇬🇧 454 156 9ms 4 Oct 2024 642nd JOrE20 🇺🇸 454 156 8ms 43 hours ago 644th CyberTapir 452 169 13ms 1 Sep 2024 645th ravnskjaer 🇩🇰 450 214 313ms 11 Sep 2024 646th msbranicky 445 269 229ms 1 Sep 2024 647th rollershutter 434 176 13ms 18 Nov 2024 648th ehulinsky 🇺🇸 432 122 3ms 3 Apr 2025 649th Yax42 🇫🇷 430 224 353ms 5 Oct 2025 650th Yewzir 🇧🇪 427 179 14ms 2 days ago 651st aksyristos 417 101 32ms 17 Nov 2024 652nd MeWhenI 🇻🇦 411 260 71ms 13 Jun 2025 653rd bac0id 402 266 2,240ms 10 Jan 2025 654th Jacob385 401 240 313ms 4 Sep 2024 655th zakariamouhid 398 178 10ms 14 Sep 2024 656th galloj 🇨🇿 396 101 7ms 4 Sep 2024 657th varhammer 🇷🇺 389 235 8ms 20 Oct 2025 658th Yewzir 🇧🇪 370 171 784ms 2 days ago 659th IISResetMe 366 127 328ms 17 Nov 2024 660th Giantnoodlemonster 365 246 2ms 27 Sep 2024 661st MeWhenI 🇻🇦 363 135 6ms 26 Sep 2024 662nd Mikey-Beep 🇬🇧 354 193 18ms 13 Aug 2025 663rd AidanWalter 346 221 14ms 3 Jan 2025 664th timhaj 🇸🇮 320 239 15ms 19 Sep 2024 665th snoozingnewt 🇺🇸 307 209 119ms 1 Sep 2024 666th nephila-nacrea 🇬🇧 283 132 3ms 4 Sep 2024 667th KatieLG 🇬🇧 262 459 1,222ms 15 Sep 2024 668th bidger 261 369 312ms 20 Sep 2024 669th KatieLG 🇬🇧 260 460 198ms 15 Sep 2024 670th snoozingnewt 🇺🇸 241 444 951ms 6 Oct 2025 671st KatieLG 🇬🇧 200 401 125ms 15 Sep 2024 672nd KatieLG 🇬🇧 191 398 7ms 15 Sep 2024 673rd KatieLG 🇬🇧 171 768 260ms 15 Sep 2024 674th KatieLG 🇬🇧 113 466 3ms 15 Sep 2024 675th Msleizak 🇫🇷 110 424 242ms 7 Feb 2025 First Prev 601–675 of 699 Next Last