Palindrome Checker
Check if any word, phrase, or number reads the same both ways.
Spaces, punctuation, and capitalization are ignored.
About this tool
Check whether any word, phrase, or number reads the same forwards and backwards. Spaces, punctuation, and capitalization are ignored, so “A man, a plan, a canal: Panama” passes with flying colors.
Try the built-in examples or test your own creations — palindromes are one of the oldest and most beloved forms of wordplay.
Frequently asked questions
What is a palindrome?
A palindrome reads the same forwards and backwards: RACECAR, LEVEL, NOON. Phrase palindromes ignore spacing and punctuation.
What's the longest single-word palindrome in English?
Commonly cited candidates include ROTAVATOR and DETARTRATED (11 letters). The Finnish word SAIPPUAKIVIKAUPPIAS (19 letters) is often cited as the world's longest.
Are numbers palindromes too?
Yes — 12321 is a numeric palindrome. Palindromic dates like 02/02/2020 are popular curiosities.