Character Frequency Counter & Analyzer

Analyze letter, digit, symbol, and whitespace distribution with frequency counts and percentages.

About this tool

Analyze cryptographic cipher text, linguistic character distributions, or text balance with detailed frequency counts.

How to use this tool

  1. Paste text into the analyzer box.
  2. Toggle case sensitivity or whitespace filters.
  3. Click Calculate Frequencies to view sorted letter counts and percentages.

How it works

Constructs an in-memory hash map of character counts, sorts descending by frequency, and calculates exact percentages.

When to use this tool

  • Cryptography students solving substitution ciphers via frequency analysis.
  • Typographers analyzing font character distributions.

Frequently asked questions

Are spaces and tabs counted?

By default yes, or you can toggle "Ignore Spaces & Linebreaks" to analyze letters only.

Limitations

Supports full UTF-8 Unicode character set.

Privacy

All analysis is conducted 100% in local memory.