Type any word or phrase to check if it reads the same forwards and backwards — case, spaces, and punctuation are ignored. Free, no signup.
What is the Palindrome Checker?
A palindrome is a word, phrase, or sequence that reads the same forwards and backwards — classics like “racecar”, “madam”, and the famous “A man, a plan, a canal: Panama”. A palindrome checker tests your text against that rule and tells you instantly whether it qualifies.
This checker follows the standard convention used in puzzles and programming challenges: it ignores capitalization, spaces, and punctuation, comparing only the letters and digits. That is why “A man, a plan, a canal: Panama” counts — strip everything but the letters and it reads identically in both directions. Alongside the yes/no verdict you get the normalized form that was actually compared and the reversed string, so you can see exactly how the check worked.
Everything runs in your browser with no signup — type a candidate, get the verdict, and try another. It is a handy companion for word-game players, puzzle constructors verifying their creations, students learning about string algorithms, and developers sanity-checking their own palindrome functions against a reference.
How to use the Palindrome Checker
- Type or paste a word, phrase, or sentence into the input field.
- Click Check Palindrome (or just look — the sample runs automatically).
- Read the verdict: YES means it reads the same forwards and backwards.
- Check the normalized and reversed rows to see exactly what was compared.
- Try variations — add or remove punctuation and watch the verdict update.
Palindrome Checker use cases
Word games and puzzles
Crossword constructors, puzzlehunt designers, and Scrabble-adjacent word-game players verify palindrome candidates in seconds instead of squinting at reversed spellings by hand.
Learning string algorithms
Palindromes are the classic first exercise in string manipulation. Students compare their code’s verdict against this checker to confirm their normalization and reversal logic is right.
Checking creative writing
Poets and wordplay enthusiasts crafting palindromic phrases — where every comma and capital can break the symmetry — get an objective verdict on each draft.
Verifying palindrome code
Developers writing their own palindrome function in a new language paste the same inputs here and compare verdicts to catch normalization bugs.
Tips
- Punctuation and spaces never count — ‘nurses run’ is a palindrome because ‘nursesrun’ reverses to itself.
- Case never counts either: ‘Racecar’ and ‘racecar’ both pass.
- Empty input is not a palindrome — you need at least one letter or digit.
- Numbers work too: ‘12321’ is a palindrome, and so are dates like ’02/02/2020′ once punctuation is stripped.