A palindrome reads the same forwards and backwards — like “radar”, “level” or “A man, a plan, a canal, Panama”.
Type anything to check it instantly. The tool also shows the normalized text (with spaces and punctuation removed), its reverse, and the longest palindromic part inside your text.
Yes — only letters and numbers are compared, in lowercase.
Any text whose normalized form equals its reverse: “noon”, “racecar”, “Never odd or even”.
No. Everything runs in your browser; nothing is uploaded.
Check any word or phrase for palindromes, see the normalized form and its reverse, and find the longest palindromic substring. Runs entirely in your browser; nothing is uploaded.