โŒจ๏ธ Text Tool

Palindrome Checker Online Free

Check if a word, number or sentence reads the same forwards and backwards. Find all palindromes in a block of text. Instant results, no server needed.

Quick Examples
Options
Enter Word or Sentence
๐Ÿ” Find Palindromes in a Text (checks each word)

About Palindrome Checker

A palindrome is a word, number, phrase or sequence that reads the same forwards and backwards. Famous examples include "racecar", "level", "madam", "12321", and sentences like "A man, a plan, a canal: Panama".

This tool checks single words, numbers, and full sentences (ignoring spaces, punctuation and case as configured). It also scans an entire paragraph to find all palindromic words within it.

Types of palindromes: Word palindromes (single words), number palindromes (like 12321), sentence palindromes (ignoring spaces/punctuation), and word-unit palindromes (phrases where words reversed give the same phrase).

Updated: May 2025 ยท Works on Chrome, Firefox, Safari, Edge ยท Mobile friendly

Frequently Asked Questions

What is a palindrome?+
A palindrome reads the same forwards and backwards. "racecar" โ†’ r-a-c-e-c-a-r reversed is still "racecar". Sentence palindromes like "A man a plan a canal Panama" work when spaces and punctuation are ignored.
What does "Ignore punctuation" do?+
It removes all punctuation marks before checking. This allows sentences like "Was it a car or a cat I saw?" to be recognised as palindromes.
Can numbers be palindromes?+
Yes! Numbers like 121, 1221, 12321 are palindromes. In programming, checking if a number is a palindrome is a very common coding interview question.
What is the longest known palindrome?+
The longest palindromic sentence in English is debated, but "A man, a plan, a canal: Panama" is one of the most famous. The longest known palindromic word is "tattarrattat" coined by James Joyce meaning a knock on the door.
โœ…Done!