Character Frequency Counter
Analyze character frequency distribution in any text with real-time statistics and visual charts
Input Text
Enter some text to see character frequency analysis
Character Frequency Counter
Analyze character frequency distribution in any text with real-time statistics and visual charts
Features
- Count occurrences of every character in pasted text
- Unicode-correct: emoji and combining marks count as a single character (uses for-of iteration, not string indexing)
- Optional filters: case-insensitive, ignore whitespace, ignore punctuation, letters only
- Stats: total characters, unique characters, most/least frequent
- Runs entirely in your browser
How to use
- Enter or paste your text in the input area.
- Adjust options like case sensitivity or whitespace filtering.
- View real-time frequency table, chart, and summary statistics.
- Sort results by frequency or alphabetically.
- Copy the results to clipboard for further use.
Tips & Best Practices
- By default the tool counts every character including whitespace and punctuation — toggle the filters at the top to narrow the scope.
- Case-insensitive treats "A" and "a" as the same character; the count column then shows the combined frequency.
- Emoji and characters outside the Basic Multilingual Plane (e.g. 😀) are correctly treated as one character, not two surrogates.
- Sort columns from the header to flip between alphabetical and frequency order.
- Runs entirely in your browser; pasted text never leaves your machine.
FAQ
Is this tool free to use?
Yes, completely free with no registration, no limits, and no hidden costs.
Is my data private?
All processing happens in your browser. No data is ever sent to any server or third party.
Does it handle Unicode characters?
Yes, the tool fully supports Unicode including accented characters, CJK characters, emojis, and more.
Can I analyze large texts?
Yes, the tool handles large texts efficiently since all processing happens client-side.
What does the case-sensitive option do?
When enabled, 'A' and 'a' are counted separately. When disabled, all characters are converted to lowercase before counting.