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 TeodorDyakov 🇧🇬 565 159 2ms 6 Sep 2025 642nd TheZwierzLF 🇵🇱 564 75 36ms 27 Dec 2025 643rd HumanoidCPU 563 110 196ms 22 Nov 2025 644th emgordon154 563 113 111ms 4 Dec 2025 645th smiksky 🇺🇸 563 136 10ms 16 Oct 2024 646th tomh1012 562 126 10ms 18 Sep 2025 647th MostParsingVex 562 160 33ms 30 Sep 2024 648th dokutan 561 132 3ms 1 Sep 2024 649th Stockoh 🇫🇷 559 137 11ms 17 Oct 2024 650th RedzGoose 🇦🇺 557 145 125ms 9 Sep 2024 651st brimstonetrader 555 138 10ms 17 Oct 2024 652nd emgordon154 554 138 11ms 1 Jan 2025 653rd msbranicky 548 135 3ms 1 Sep 2024 654th DialFrost 🇸🇬 539 76 1,023ms 1 Aug 2025 655th KatieLG 🇬🇧 539 128 2ms 2 Oct 2025 656th mm1013g 539 142 10ms 2 Sep 2024 657th dokutan 539 155 242ms 1 Sep 2024 658th Shanethegamer 🇺🇸 538 91 22ms 1 Sep 2024 659th Shanethegamer 🇺🇸 536 206 32ms 4 Sep 2024 660th snoozingnewt 🇨🇦 535 79 34ms 12 Oct 2025 661st albanian-laundromat 533 352 11ms 18 Sep 2025 662nd trijin 532 118 4ms 5 Oct 2024 663rd Shanethegamer 🇺🇸 532 183 492ms 24 Sep 2025 664th AstroOrbis 525 145 6ms 16 days ago 665th tomh1012 525 169 409ms 17 Sep 2025 666th pickerj 524 146 11ms 12 Sep 2024 667th ravnskjaer 🇩🇰 523 186 478ms 15 Dec 2025 668th CaedenHarper 🇨🇦 518 188 493ms 3 Oct 2025 669th error256 515 134 2ms 24 Sep 2024 670th dokutan 507 174 10ms 13 days ago 671st rboath 506 159 102ms 18 Dec 2024 672nd dbut2 🇦🇺 504 261 275ms 3 Sep 2024 673rd madex 🇩🇪 503 84 36ms 1 Sep 2024 674th snoozingnewt 🇨🇦 502 141 11ms 12 Oct 2025 675th LukeBridges 🇬🇧 499 142 11ms 3 Sep 2024 676th MeWhenI 🇻🇦 498 86 919ms 15 Sep 2025 677th snoozingnewt 🇨🇦 497 160 102ms 1 Sep 2024 678th MeWhenI 🇻🇦 497 181 2ms 13 Jun 2025 679th HunterC14 494 155 10ms 21 Oct 2024 680th mateusz-sterczewski 492 86 36ms 15 Jan 2026 681st madex 🇩🇪 491 183 2ms 2 Sep 2024 682nd codewrite 🇬🇧 490 181 517ms 30 Dec 2025 683rd Naitzirch 🇳🇱 485 158 10ms 3 Jul 2025 684th alphafalfa 480 105 4ms 1 Nov 2024 685th snoozingnewt 🇨🇦 479 185 465ms 4 Oct 2025 686th rucin93 🇵🇱 478 251 227ms 5 Sep 2024 687th snoozingnewt 🇨🇦 476 189 2ms 9 Oct 2025 688th junkondo-jp 475 149 10ms 15 Dec 2024 689th KatieLG 🇬🇧 475 292 8ms 1 Sep 2024 690th DialFrost 🇸🇬 470 207 566ms 24 Sep 2025 691st R4z0rX 466 152 11ms 1 Sep 2024 692nd Apzyte-Gamer 464 165 10ms 28 Oct 2024 693rd iczelia 🇩🇪 463 194 2ms 11 Oct 2025 694th two-bad 🇬🇧 454 156 11ms 4 Oct 2024 695th CyberTapir 453 169 10ms 1 Sep 2024 696th JOrE20 453 268 28ms 11 Feb 2026 697th Shanethegamer 🇺🇸 451 141 110ms 4 Dec 2025 698th snoozingnewt 🇨🇦 449 186 8ms 1 Sep 2024 699th msbranicky 446 269 232ms 1 Sep 2024 700th IISResetMe 439 106 517ms 3 Jan 2026 701st Shanethegamer 🇺🇸 438 115 2ms 1 Sep 2024 702nd rollershutter 435 176 10ms 18 Nov 2024 703rd Yax42 🇫🇷 435 224 471ms 5 Oct 2025 704th ehulinsky 🇺🇸 432 122 3ms 3 Apr 2025 705th Yewzir 🇧🇪 428 179 11ms 1 Dec 2025 706th aksyristos 419 101 36ms 17 Nov 2024 707th amazingalek 🇳🇴 411 216 586ms 26 Jan 2026 708th MeWhenI 🇻🇦 411 260 83ms 13 Jun 2025 709th Jacob385 406 240 393ms 4 Sep 2024 710th bac0id 402 266 3,023ms 10 Jan 2025 711th zakariamouhid 398 178 12ms 14 Sep 2024 712th galloj 🇨🇿 396 101 10ms 4 Sep 2024 713th varhammer 379 235 8ms 20 Oct 2025 714th Yewzir 🇧🇪 371 171 620ms 1 Dec 2025 715th nemoyatpeace 368 208 10ms 16 Jan 2026 716th Giantnoodlemonster 365 246 2ms 27 Sep 2024 717th MeWhenI 🇻🇦 363 135 7ms 26 Sep 2024 718th Mikey-Beep 🇬🇧 354 193 14ms 13 Aug 2025 719th AidanWalter 346 221 10ms 3 Jan 2025 720th Imsmelkov 327 298 448ms 22 Jan 2026 First Prev 641–720 of 768 Next Last