🔄 Free Online Palindrome Checker
Check if any text reads the same forwards and backwards • Test words, phrases, numbers, and sentences • Includes famous palindromes
📝 Enter Text to Check
0 chars
Palindrome!
"racecar" → "racecar"
7
Characters
1
Words
7
Clean Length
7
Compared
🔍 Forward vs Backward
Forward
racecar
Backward
racecar
✓ MATCH
🌟 Famous Palindromes to Try
racecar
Classic word palindrome
madam
Common palindrome
A man, a plan...
Famous phrase
Was it a car...
Question palindrome
Never odd or even
Phrase palindrome
12321
Number palindrome
❓ What is a Palindrome?
A palindrome is a word, phrase, number, or sequence of characters that reads the same forwards and backwards, ignoring spaces, punctuation, and capitalization. The word comes from Greek "palin" (again) and "dromos" (way, direction).
Examples: "racecar", "madam", "level", "radar", "12321", "A man, a plan, a canal: Panama!"
🎯 Fun Facts About Palindromes
The longest palindrome word: "saippuakivikauppias" (Finnish for "soapstone vendor") has 19 letters!
Date palindromes: February 2, 2020 (02022020) was a palindrome date.
Number palindromes: 121, 12321, 1234321 are numeric palindromes.
Name palindromes: "Hannah", "Bob", "Otto" are palindrome names.
Sentence palindrome: "Was it a car or a cat I saw?" is a famous palindrome sentence.
✨ Key Features
100% Private
Your text never leaves your device
Instant Check
Results update as you type
Flexible Options
Ignore case, spaces, punctuation
Visual Comparison
See forward vs backward side by side
Character Map
Visual matching of each character
Famous Examples
Try classic palindromes
📚 Types of Palindromes
- Word palindromes: Single words (racecar, madam, level)
- Phrase palindromes: Multiple words ignoring spaces/punctuation
- Number palindromes: Numeric sequences (121, 12321, 45654)
- Date palindromes: Dates that read same forwards/backwards
- Biological palindromes: DNA sequences that read the same on both strands
❓ Frequently Asked Questions
What makes a palindrome? ▼
A palindrome is any sequence of characters that reads the same forwards and backwards after ignoring case, spaces, and punctuation. For example, "Racecar" becomes "racecar" when reversed, so it's a palindrome.
What's the longest palindrome word? ▼
The longest known palindrome word is "saippuakivikauppias" (19 letters), which is Finnish for "soapstone vendor". In English, "tattarrattat" (12 letters) is a word coined by James Joyce in Ulysses, meaning a knock on a door.
Do spaces and punctuation matter? ▼
In palindrome checking, spaces and punctuation are usually ignored. For example, "A man, a plan, a canal: Panama!" is considered a palindrome because when you remove spaces and punctuation, "amanaplanacanalpanama" reads the same forwards and backwards.
Are there number palindromes? ▼
Yes! Number palindromes include 121, 12321, 45654, 1234321. In mathematics, palindromic numbers are studied for their interesting properties. Some dates also form palindromes, like 02/02/2020 (02022020).
Is my text stored or saved? ▼
No! All processing happens in your browser. Your text never leaves your device. We cannot see, store, or access your content. Your privacy is 100% protected.