Palindrome Checker
Check if a word or phrase reads the same forwards and backwards.
Spaces, punctuation, and capitalization are ignored when checking.
How to use the palindrome checker
- Type a word or phrase into the box.
- The result updates instantly as you type.
Type a word or phrase to instantly check whether it's a palindrome, meaning it reads the same forwards and backwards. Spaces, punctuation, and capitalization are ignored, so phrases like 'A man, a plan, a canal: Panama' get detected correctly.
Famous palindromes
A palindrome reads the same forwards and backwards. Single-word examples include level, radar, racecar, kayak, madam and noon. Well-known phrases include 'A man, a plan, a canal: Panama', 'Was it a car or a cat I saw?' and 'Never odd or even'.
Numbers can be palindromes too, like 121 or 12321, and so can dates such as 02/02/2020. Checking palindromes is also a classic beginner programming exercise for working with strings.
Frequently asked questions
What counts as a palindrome here?
Any text that reads the same forwards and backwards once spaces, punctuation, and letter case are ignored, which is how palindromes are usually judged.
Does it work with numbers?
Yes, numeric palindromes like 12321 are detected the same way as word palindromes.
What's the longest palindrome word in English?
'Tattarrattat', coined by James Joyce, is often cited. Among everyday words, 'racecar' and 'redivider' are some of the longest.
Is a single letter a palindrome?
Yes. Any single character reads the same in both directions.