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Anagram Checker

Check if two strings are anagrams with customizable normalization options.

Updated

What is the Anagram Checker?

The Anagram Checker determines whether two strings are anagrams of each other—meaning they contain the same characters with equal counts after normalization.

Why it matters

  • Word games: Verify answers in Scrabble, crossword puzzles, or anagram challenges
  • Language learning: Check spelling and character composition across languages
  • Text analysis: Compare document fingerprints or find linguistic patterns

Tip: Try "listen" vs "silent" or "résumé" vs "resume" (with accent folding enabled).

How it works

This tool compares two strings by normalizing them into canonical forms and checking if they have identical character multisets.

Steps

  1. Enter string A and string B in the input fields
  2. Choose a comparison preset (strict, letters-only, or phrase-like)
  3. Adjust normalization options as needed (case, whitespace, punctuation, accents, Unicode handling)
  4. View the result instantly—anagram status, canonical forms, and character differences

Behind the scenes

The tool uses Unicode-aware normalization:

input strings → case fold → accent fold (optional) → filter punctuation/whitespace → canonical forms → character count comparison

Normalization presets

  • Strict: Everything counts (except case if enabled)
  • Letters/numbers only: Keeps letters and numbers; ignores whitespace, punctuation, and accents
  • Phrase-like: Ignores whitespace and punctuation; keeps letters/numbers; folds accents

Diagnostics

When strings are not anagrams, the tool shows:

  • Character count differences (which characters are extra/missing in each string)
  • First mismatch position in the canonical form of string B
  • Normalized lengths for comparison

Examples

Basic anagram

Classic word anagram check.

listen / silent
They are anagrams (same characters with the same counts).

Phrase anagram

Phrase-like preset ignores spaces and punctuation.

Astronomer / Moon starer
They are anagrams (same characters with the same counts).

Frequently asked questions

What is Anagram Checker?

This tool checks whether two strings are anagrams by comparing their character counts after optional normalization.

How do I use Anagram Checker?

Enter two strings in the input fields, select a comparison preset (or customize the normalization options), and the tool will instantly show whether they are anagrams.

Is Anagram Checker free?

Yes, it runs entirely in your browser with no server calls.

What normalization options are available?

You can toggle case sensitivity, whitespace handling, punctuation filtering, accent folding (résumé → resume), and Unicode conservative mode for better handling of special characters.

What's the difference between the presets?

  • Strict: Everything counts—punctuation, spaces, accents all matter
  • Letters/numbers only: Only letters and numbers are kept; everything else is ignored
  • Phrase-like: Best for phrase anagrams—ignores spaces and punctuation but keeps letters and numbers

What does "First mismatch in B" mean?

When strings are not anagrams, this shows the character position in string B where the character counts first diverge from string A, making it easy to spot where differences occur.

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