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 Multitap Input 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 Multitap Input 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 emgordon154 570 133 15ms 16 Dec 2024 602nd TeodorDyakov 🇧🇬 565 159 2ms 6 Sep 2025 603rd HumanoidCPU 563 110 143ms 17 days ago 604th tomh1012 562 126 9ms 18 Sep 2025 605th smiksky 🇺🇸 562 136 11ms 16 Oct 2024 606th MostParsingVex 562 160 33ms 30 Sep 2024 607th dokutan 561 132 3ms 1 Sep 2024 608th Stockoh 🇫🇷 558 137 11ms 17 Oct 2024 609th brimstonetrader 554 138 10ms 17 Oct 2024 610th RedzGoose 🇦🇺 553 145 100ms 9 Sep 2024 611th dokutan 548 113 149ms 22 Oct 2024 612th msbranicky 548 135 3ms 1 Sep 2024 613th alphafalfa 540 105 4ms 1 Nov 2024 614th KatieLG 🇬🇧 539 128 2ms 2 Oct 2025 615th mm1013g 539 142 10ms 2 Sep 2024 616th Shanethegamer 🇺🇸 535 91 25ms 1 Sep 2024 617th snoozingnewt 🇨🇦 534 79 45ms 12 Oct 2025 618th albanian-laundromat 533 352 11ms 18 Sep 2025 619th trijin 529 118 5ms 5 Oct 2024 620th Shanethegamer 🇺🇸 526 183 452ms 24 Sep 2025 621st pickerj 524 146 12ms 12 Sep 2024 622nd tomh1012 523 169 346ms 17 Sep 2025 623rd error256 515 134 2ms 24 Sep 2024 624th Shanethegamer 🇺🇸 512 141 107ms 5 days ago 625th CaedenHarper 🇨🇦 512 188 438ms 3 Oct 2025 626th rboath 506 159 109ms 18 Dec 2024 627th madex 🇩🇪 502 84 46ms 1 Sep 2024 628th snoozingnewt 🇨🇦 502 141 8ms 12 Oct 2025 629th dbut2 🇦🇺 502 261 254ms 3 Sep 2024 630th LukeBridges 🇬🇧 498 142 9ms 3 Sep 2024 631st snoozingnewt 🇨🇦 497 160 130ms 1 Sep 2024 632nd MeWhenI 🇻🇦 497 181 2ms 13 Jun 2025 633rd Shanethegamer 🇺🇸 493 115 2ms 1 Sep 2024 634th HunterC14 493 155 10ms 21 Oct 2024 635th madex 🇩🇪 491 183 2ms 2 Sep 2024 636th Naitzirch 🇳🇱 484 158 11ms 3 Jul 2025 637th snoozingnewt 🇨🇦 478 185 356ms 4 Oct 2025 638th snoozingnewt 🇨🇦 476 189 5ms 9 Oct 2025 639th rucin93 🇵🇱 476 251 258ms 5 Sep 2024 640th junkondo-jp 475 149 9ms 15 Dec 2024 641st KatieLG 🇬🇧 475 292 7ms 1 Sep 2024 642nd janAkali 🇷🇺 470 171 385ms 17 May 2025 643rd R4z0rX 466 152 9ms 1 Sep 2024 644th DialFrost 🇸🇬 465 207 461ms 24 Sep 2025 645th Apzyte-Gamer 464 165 10ms 28 Oct 2024 646th iczelia 🇩🇪 463 194 2ms 11 Oct 2025 647th two-bad 🇬🇧 454 156 9ms 4 Oct 2024 647th JOrE20 🇺🇸 454 156 9ms 7 days ago 649th CyberTapir 453 169 10ms 1 Sep 2024 650th ravnskjaer 🇩🇰 450 214 403ms 11 Sep 2024 651st msbranicky 445 269 258ms 1 Sep 2024 652nd rollershutter 435 176 10ms 18 Nov 2024 653rd ehulinsky 🇺🇸 432 122 3ms 3 Apr 2025 654th Yax42 🇫🇷 430 224 452ms 5 Oct 2025 655th Yewzir 🇧🇪 427 179 10ms 8 days ago 656th aksyristos 417 101 43ms 17 Nov 2024 657th MeWhenI 🇻🇦 411 260 71ms 13 Jun 2025 658th bac0id 402 266 2,292ms 10 Jan 2025 659th Jacob385 401 240 398ms 4 Sep 2024 660th zakariamouhid 398 178 10ms 14 Sep 2024 661st galloj 🇨🇿 396 101 10ms 4 Sep 2024 662nd varhammer 🇷🇺 389 235 8ms 20 Oct 2025 663rd Yewzir 🇧🇪 370 171 752ms 8 days ago 664th IISResetMe 366 127 328ms 17 Nov 2024 665th Giantnoodlemonster 365 246 2ms 27 Sep 2024 666th MeWhenI 🇻🇦 363 135 7ms 26 Sep 2024 667th Mikey-Beep 🇬🇧 354 193 14ms 13 Aug 2025 668th AidanWalter 346 221 11ms 3 Jan 2025 669th timhaj 🇸🇮 320 239 10ms 19 Sep 2024 670th snoozingnewt 🇨🇦 307 209 119ms 1 Sep 2024 671st nephila-nacrea 🇬🇧 283 132 3ms 4 Sep 2024 672nd KatieLG 🇬🇧 262 459 1,222ms 15 Sep 2024 673rd bidger 261 369 411ms 20 Sep 2024 674th KatieLG 🇬🇧 260 460 232ms 15 Sep 2024 675th snoozingnewt 🇨🇦 241 444 1,006ms 6 Oct 2025 First Prev 601–675 of 704 Next Last