Palindrome validator
Check if a phrase is a palindrome, ignoring spaces, punctuation, and case. Empty text is not treated as a palindrome.
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Tool guide
Palindrome validator: how it works
Practical information to understand the result and use this tool correctly.
About Palindrome validator
A palindrome reads the same forwards and backwards after removing spaces and punctuation and ignoring case.
Classic example: A man, a plan, a canal: Panama.
Empty or whitespace-only input is not treated as a palindrome.
How to use it
- 1Enter a phrase or use the example.
- 2See if it is a palindrome and the cleaned text.
- 3Copy the result. Reset clears the field.
Frequently asked questions
- Is 'A man, a plan, a canal: Panama' a palindrome?
- Yes. After cleaning it becomes 'amanaplanacanalpanama'.
- Does it ignore punctuation and spaces?
- Yes. It keeps only letters and numbers and ignores case.
- What about empty text?
- Empty or whitespace-only input is not a palindrome.