Palindrome Checker
Check whether a word or phrase is a palindrome. Ignores case, spaces, and punctuation by default — configure options below.
Frequently Asked Questions
What is a palindrome?
A palindrome is a word, phrase, number, or sequence that reads the same forwards and backwards. Classic examples include "racecar", "madam", "kayak", and the phrase "A man, a plan, a canal: Panama". Palindromes have fascinated mathematicians and linguists for centuries because they form a perfect mirror around their centre.
Why ignore spaces and punctuation?
Most interesting palindromes only work when you remove spaces and punctuation. "A man, a plan, a canal: Panama" contains commas, spaces, and a colon — none of which are part of the letter symmetry. Ignoring them (the default setting) lets the tool catch phrase-level palindromes that a strict character-by-character check would miss.
Are numbers and emoji supported?
Yes. Numbers like 12321 are valid palindromes. When "Keep punctuation" is on, the checker preserves all non-letter, non-digit symbols. Emoji are treated as single characters, so a sequence like 🌟A🌟 reversed is 🌟A🌟 — which is a palindrome.