Palindrome Checker — Complete Guide
A palindrome is a word, phrase, or sequence that reads the same forwards and backwards. 'racecar', 'level', 'madam', and the phrase 'A man a plan a canal Panama' are all palindromes. This tool checks whether any text is a palindrome, with options to ignore spaces, punctuation, and capitalization for phrase-level checks.
What you can do with Palindrome Checker
- Checking whether a word or phrase is a palindrome for wordplay and puzzles
- Testing string palindrome logic in programming exercises
- Finding palindromic numbers in numeric sequences
- Educational tools for language learning and word games
How to use Palindrome Checker
Enter the word or phrase to check
The tool tells you whether it is a palindrome
For phrases, spaces and punctuation are typically ignored to check the letter sequence
Tips for best results
Most palindrome checkers ignore spaces and punctuation for phrases — 'Was it a car or a cat I saw' is a palindrome when spaces are removed
Checking is usually case-insensitive — 'Level' and 'level' are both palindromes
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Frequently asked questions
Does punctuation count when checking palindromes?
Conventionally, palindrome checks ignore spaces and punctuation and only look at the letter sequence. 'A man, a plan, a canal: Panama!' is considered a palindrome even though it has punctuation.
What is the longest known palindrome?
There are many constructed palindromes of enormous length. The longest single palindrome words in English include 'sagas' and 'civic'. Palindromic sentences and paragraphs have been constructed that are thousands of words long.