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Palindrome Checker

Check if text reads the same forwards and backwards. Real-time palindrome detection with support for ignoring spaces and punctuation.

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Waiting for input...
Type something to check if it's a palindrome
Click to Try Examples
A man, a plan, a canal: Panama✓ Famous palindrome
racecar✓ Simple palindrome
Was it a car or a cat I saw?✓ Question palindrome
No 'x' in Nixon✓ Palindrome with apostrophe
hello world✗ Not a palindrome
A Santa at NASA✓ Space palindrome
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About Palindrome Checker

A palindrome is a word, phrase, number, or other sequence of characters that reads the same forward and backward (ignoring spaces, punctuation, and capitalization). Our free Palindrome Checker tool helps you quickly verify if any text is a palindrome with real-time feedback.

How to Use

  1. Type or paste your text into the input area above.
  2. The tool automatically checks if it's a palindrome in real-time.
  3. View the visual indicator showing YES (green) or NO (red).
  4. See the reversed text for comparison.
  5. Use the options to customize how the check works:
    • Ignore spaces & punctuation: Remove non-alphanumeric characters before checking.
    • Case insensitive: Treat uppercase and lowercase as the same.
  6. Click any example to try famous palindromes.

What is a Palindrome?

The term "palindrome" comes from the Greek words "palin" (again) and "dromos" (way/direction). Palindromes have fascinated people for centuries and appear in many languages. They range from simple single words like "radar" and "level" to complex phrases and even entire sentences.

Famous Palindrome Examples

Words: radar, level, civic, kayak, madam, refer, rotator, racecar
Phrases: "A man, a plan, a canal: Panama", "Was it a car or a cat I saw?", "No 'x' in Nixon"
Numbers: 121, 12321, 55555
Dates: 02/02/2020 (reads the same forward and backward)

Frequently Asked Questions

Is my text sent to a server?

No. All checking happens entirely within your browser. Your text is never transmitted to our servers or stored anywhere.

Does capitalization matter?

By default, the tool is case-insensitive, so "Racecar" and "RaCeCaR" are both considered palindromes. You can disable this in the options.

What about spaces and punctuation?

The "Ignore spaces & punctuation" option (enabled by default) removes all non-alphanumeric characters before checking. This allows phrases like "A man, a plan, a canal: Panama" to be recognized as palindromes.

Can palindromes be multiple words?

Yes! Many famous palindromes are complete phrases or sentences. The key is that the sequence of letters reads the same forward and backward when spaces are ignored.

Are there palindromes in other languages?

Yes, palindromes exist in virtually every language. Examples include "Ärrapörre" (Swedish), "ţacată" (Romanian), and "尤うゆうやけょう" (Japanese).