Palindrome Checker
TEXT & DATA
Palindrome Checker
Check a Unicode-aware normalized palindrome.
UNDERSTAND YOUR RESULT
How it works
Check a Unicode-aware normalized palindrome.
THE CALCULATIONignore case and non-letter/non-digit characters, then compare to the reverse
Using this calculator
Enter text. ignore case and non-letter/non-digit characters, then compare to the reverse.
What to keep in mind
Your inputs stay in this page. Text is limited to 50,000 characters; large lists and tables are bounded. No data is uploaded or saved.
Frequently asked questions
Are my entries saved?
No. Calculator inputs remain in the current page and are cleared when you reload or leave. The tools do not upload your entries.
Why are results rounded?
The display is rounded for readability. Calculations use unrounded intermediate values. An estimate should not be interpreted as an exact measurement.