A palindrome number reads exactly the same forwards and backwards — 12321, 4554, 90009, 10001. This tool checks a whole batch at once and lays the result out as a table, useful for lottery numbers, IDs, quiz answers or maths practice.

Steps:
1. Paste the numbers into the box; commas, spaces, newlines or any other separator work;
2. Choose the comparison mode:
   · Ignore signs and decimal points — non-digit characters are stripped before comparing, so -4554 counts as a palindrome, and so do 1.1 and 12.21;
   · Strict characters — compare as-is, so -4554 and 1.1 are not palindromes;
3. Set Min Length — numbers shorter than this are skipped entirely (e.g. 5 keeps only numbers of 5 digits or more);
4. Choose what to output: list everything / only palindromes / only non-palindromes;
5. Optionally tick Keep unique;
6. Optionally set the separator — the default \n puts one value per line;
7. Click Run. Results appear in the text box and in the table below (original / digits / reversed / palindrome?). Both the original and reversed values can be copied in place, and the whole table exports as CSV.
Note: comparison is character by character and leading zeros count, so 007 is not a palindrome — run a padding or zero-stripping tool first if you want them ignored.