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 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 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 Shanethegamer 🇺🇸 530 183 506ms 24 Sep 2025 642nd trijin 529 118 5ms 5 Oct 2024 643rd tomh1012 525 169 457ms 17 Sep 2025 644th pickerj 524 146 12ms 12 Sep 2024 645th ravnskjaer 🇩🇰 521 186 478ms 15 Dec 2025 646th CaedenHarper 🇨🇦 516 188 493ms 3 Oct 2025 647th error256 515 134 2ms 24 Sep 2024 648th Shanethegamer 🇺🇸 512 141 147ms 4 Dec 2025 649th rboath 506 159 109ms 18 Dec 2024 650th madex 🇩🇪 503 84 36ms 1 Sep 2024 651st snoozingnewt 🇨🇦 502 141 9ms 12 Oct 2025 652nd dbut2 🇦🇺 502 261 255ms 3 Sep 2024 653rd MeWhenI 🇻🇦 498 86 919ms 15 Sep 2025 654th LukeBridges 🇬🇧 498 142 10ms 3 Sep 2024 655th snoozingnewt 🇨🇦 497 160 101ms 1 Sep 2024 656th MeWhenI 🇻🇦 497 181 2ms 13 Jun 2025 657th HunterC14 494 155 13ms 21 Oct 2024 658th mateusz-sterczewski 491 86 36ms 20 days ago 659th madex 🇩🇪 491 183 2ms 2 Sep 2024 660th codewrite 🇬🇧 490 181 433ms 30 Dec 2025 661st Naitzirch 🇳🇱 484 158 10ms 3 Jul 2025 662nd alphafalfa 480 105 4ms 1 Nov 2024 663rd snoozingnewt 🇨🇦 479 185 441ms 4 Oct 2025 664th rucin93 🇵🇱 478 251 225ms 5 Sep 2024 665th snoozingnewt 🇨🇦 476 189 5ms 9 Oct 2025 666th junkondo-jp 475 149 9ms 15 Dec 2024 667th KatieLG 🇬🇧 475 292 7ms 1 Sep 2024 668th janAkali 🇷🇺 473 171 385ms 17 May 2025 669th DialFrost 🇸🇬 469 207 566ms 24 Sep 2025 670th R4z0rX 466 152 9ms 1 Sep 2024 671st Apzyte-Gamer 464 165 10ms 28 Oct 2024 672nd iczelia 🇩🇪 463 194 2ms 11 Oct 2025 673rd two-bad 🇬🇧 454 156 11ms 4 Oct 2024 674th CyberTapir 453 169 10ms 1 Sep 2024 675th snoozingnewt 🇨🇦 449 186 8ms 1 Sep 2024 676th JOrE20 448 271 26ms 25 Dec 2025 677th msbranicky 446 269 224ms 1 Sep 2024 678th IISResetMe 439 106 391ms 3 Jan 2026 679th Shanethegamer 🇺🇸 438 115 2ms 1 Sep 2024 680th rollershutter 435 176 12ms 18 Nov 2024 681st Yax42 🇫🇷 433 224 471ms 5 Oct 2025 682nd ehulinsky 🇺🇸 432 122 3ms 3 Apr 2025 683rd Yewzir 🇧🇪 428 179 11ms 1 Dec 2025 684th aksyristos 418 101 36ms 17 Nov 2024 685th amazingalek 🇳🇴 411 216 446ms 9 days ago 686th MeWhenI 🇻🇦 411 260 72ms 13 Jun 2025 687th Jacob385 404 240 393ms 4 Sep 2024 688th bac0id 402 266 2,538ms 10 Jan 2025 689th zakariamouhid 398 178 11ms 14 Sep 2024 690th galloj 🇨🇿 396 101 10ms 4 Sep 2024 691st varhammer 🇷🇺 379 235 8ms 20 Oct 2025 692nd Yewzir 🇧🇪 370 171 632ms 1 Dec 2025 693rd nemoyatpeace 368 208 10ms 19 days ago 694th Giantnoodlemonster 365 246 2ms 27 Sep 2024 695th MeWhenI 🇻🇦 363 135 7ms 26 Sep 2024 696th Mikey-Beep 🇬🇧 354 193 14ms 13 Aug 2025 697th AidanWalter 346 221 11ms 3 Jan 2025 698th Imsmelkov 325 298 448ms 13 days ago 699th timhaj 🇸🇮 320 239 11ms 19 Sep 2024 700th snoozingnewt 🇨🇦 307 209 136ms 1 Sep 2024 701st nephila-nacrea 🇬🇧 283 132 3ms 4 Sep 2024 702nd bidger 263 369 410ms 20 Sep 2024 703rd KatieLG 🇬🇧 262 459 1,383ms 15 Sep 2024 704th KatieLG 🇬🇧 261 460 205ms 15 Sep 2024 705th snoozingnewt 🇨🇦 241 444 1,110ms 6 Oct 2025 706th KatieLG 🇬🇧 200 401 174ms 15 Sep 2024 707th KatieLG 🇬🇧 191 398 8ms 15 Sep 2024 708th KatieLG 🇬🇧 171 768 249ms 15 Sep 2024 709th KatieLG 🇬🇧 113 466 3ms 15 Sep 2024 710th Msleizak 🇫🇷 110 424 283ms 7 Feb 2025 711th KatieLG 🇬🇧 104 937 457ms 15 Sep 2024 712th KatieLG 🇬🇧 86 1,032 463ms 15 Sep 2024 713th dokutan 64 1,663 72ms 23 Apr 2025 714th dokutan 54 1,663 2ms 23 Apr 2025 715th darrenks 0 10 71ms 19 Apr 2025 715th lyphyser 0 10 68ms 25 May 2025 717th 2bular 0 11 69ms 23 Mar 2025 717th Natanaelel 🇸🇪 0 11 81ms 25 Mar 2025 717th plcc0 0 11 72ms 5 May 2025 720th kg583 🇺🇸 0 14 204ms 12 Apr 2025 First Prev 641–720 of 737 Next Last