Palindrome Checker — Free Online Tool

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Palindrome Checker

Enter any word, phrase, or sentence to check if it reads the same forwards and backwards.

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Frequently Asked Questions

What is a palindrome?
A word, phrase, or sequence that reads the same forwards and backwards, ignoring spaces and punctuation. Examples: racecar, level, madam, noon, ‘A man a plan a canal Panama’.
What is the longest common palindrome?
‘Saippuakivikauppias’ (Finnish for ‘soap stone vendor’) is one of the longest palindromic words at 19 characters. In English, ‘tattarrattat’ (coined by James Joyce, meaning a knock on a door) is notable.