Character Frequency Analyzer
Analyze how often each character appears with frequency chart.
How to use
Runs entirely in your browser. Live updates or click to run. No signup, no tracking, no data sent anywhere.
Part of 71 free tools by Auburn AI. Category: Text Tools
About this tool
Character Frequency Analyzer counts how often each character appears in a block of text and shows you the full distribution ranked by frequency. It is useful for writers, editors, cryptographers, linguists, and developers who need a clear breakdown of what characters make up their content, including letters, digits, spaces, and punctuation. No installation required and it works entirely in your browser.
Reach for this tool when you are doing cryptanalysis on a cipher, auditing text for unusual character patterns, checking data encoding issues, or studying language patterns in a corpus. It is also handy when you suspect hidden characters or want to verify that a string contains only expected symbols before passing it into a system.
How to use it
- Paste or type your text into the input field on the tool page.
- Choose whether to treat uppercase and lowercase letters as the same character.
- Toggle whether to include or exclude spaces and punctuation from the count.
- Click Analyze to generate the frequency table.
- Review results sorted by frequency or switch to alphabetical order.
- Copy or export the table if you need the data elsewhere.
Pro tips
- Run the tool twice, once case-sensitive and once not, to spot inconsistent capitalization hiding in your source text.
- Paste encoded or minified data to quickly identify unexpected characters that may indicate encoding corruption or injection attempts.