📝 Text & Content
Palindrome Checker
Instantly check if a word, number, or phrase reads the same forwards and backwards.
Try these examples
racecar
level
hello
12321
madam
A man a plan a canal Panama
Was it a car or a cat I saw
never odd or even
How the Palindrome Checker works
Type or paste any word, number, or sentence. The checker applies your chosen normalisation options — converting to lowercase, removing spaces, or stripping punctuation — then compares the cleaned string to its reverse. If they match, it is a palindrome. The tool shows you the cleaned string and its reverse so you can see exactly why the result is what it is.
Frequently Asked Questions
What is a palindrome?
A palindrome is a word, number, phrase, or sequence that reads the same forwards and backwards. Examples: "racecar", "level", "madam", "12321", and the phrase "A man a plan a canal Panama" (ignoring spaces).
Is "racecar" a palindrome?
Yes — "racecar" is a classic palindrome. It spells the same forwards and backwards: r-a-c-e-c-a-r.
Is "A man a plan a canal Panama" a palindrome?
Yes — when ignoring spaces and capitalization, this phrase reads the same in both directions. Enable the "Ignore spaces" and "Ignore case" options in the checker above.
What are some examples of number palindromes?
Number palindromes include: 11, 121, 1221, 12321, 9009. Any number that reads the same forwards and backwards qualifies — for example, the year 2002 was a palindrome year.
What is the longest palindrome word in English?
"Tattarrattat" (coined by James Joyce, meaning a knock at the door) is often cited at 12 letters. The Finnish word "saippuakivikauppias" (soap stone seller) is 19 letters and is sometimes listed as a world-record palindrome word.
Is this palindrome checker free?
Yes — the Palindrome Checker on Potential Daily is completely free with no sign-up required.