An anagram is a word or phrase formed by rearranging the letters of another. 'Listen' and 'Silent' use exactly the same letters — just in different order. The Anagram Checker instantly tells you whether two inputs are perfect anagrams by comparing their letter frequencies. It shows a visual breakdown of each letter's count, highlights any differences, and offers a collection of famous anagram pairs to explore.
How to Use the Anagram Checker
Enter two words or phrases and the tool instantly compares them:
- Green result: The inputs ARE anagrams — they use exactly the same letters in the same quantities
- Red result: The inputs are NOT anagrams — the tool shows which letters differ
- Letter chart: A side-by-side frequency comparison of every letter
Toggle options to ignore spaces, punctuation, and case for phrase-level anagram checking.
Famous Anagram Pairs
History's best anagrams:
- Astronomer → Moon starer
- The eyes → They see
- Dormitory → Dirty room
- Listen → Silent
- Funeral → Real fun
- Election results → Lies, let's recount
- A decimal point → I'm a dot in place
The Math Behind Anagram Detection
Checking anagrams is fundamentally a frequency comparison problem:
- Normalize both inputs (lowercase, remove non-letter characters if configured)
- Count the frequency of each letter in both strings
- Compare the frequency maps — if every letter has the same count, they're anagrams
This runs in O(n) time, where n is the length of the inputs — making it instant even for long phrases.
Step-by-Step Instructions
- 1Enter the first word or phrase in the top field.
- 2Enter the second word or phrase in the bottom field.
- 3The checker instantly shows whether they are anagrams.
- 4View the letter frequency comparison chart for each character.
- 5Try famous examples from the library for inspiration.