Character Frequency Analyzer
See how often every character appears.
- Reading time:
- 2 min
- Last updated:
- Price:
- Free, no signup
Type or paste text to see the result.
What the Character Frequency Analyzer does
Paste any text and see how many times each character appears, sorted from most to least frequent, with percentages. 'hello' shows l: 2 (40%), h: 1 (20%), and so on.
Letters, digits, spaces and punctuation are all counted separately, so you can see the true shape of a text.
Why the Character Frequency Analyzer is useful
Character frequency is the foundation of cipher-breaking, compression and linguistics. English text leans heavily on 'e' and 't'; a substitution cipher keeps that fingerprint, which is how such ciphers fall.
It's also practical: writers check letter balance in pangrams, developers sanity-check encoded data, and students verify frequency-analysis homework.
Also known as: character frequency analyzer, character frequency counter, letter distribution, free character frequency analyzer, online character frequency analyzer, character frequency analyzer online free, character frequency analyzer tool.
How to use the Character Frequency Analyzer
- 1
Paste your text
A sentence or a whole chapter.
- 2
Read the frequency table
Characters ranked by count, with percentages.
- 3
Copy the results
Take the table into your notes or assignment.
Key features
- Counts every character type
- Sorted by frequency with percentages
- Handles any length of text
- Copyable results table
Benefits
- Break simple ciphers with frequency analysis
- Verify pangrams and constrained writing
- Study text patterns hands-on
Real-life use cases
Solving a cryptogram
A puzzle fan pastes a coded message and matches the most frequent symbol to 'e'.
Checking a pangram
A designer verifies a font-test sentence really contains every letter.
Linguistics homework
A student compares letter frequencies between English and Spanish paragraphs.
Tips for the best results
- In English, ETAOIN are usually the most frequent letters — a useful anchor for ciphers.
- Longer texts give more reliable frequency patterns.
- Include or ignore spaces depending on your analysis; the table shows them separately.
Conclusion
See the fingerprint of any text — every character counted and ranked.
Frequently asked questions
Are uppercase and lowercase counted together?
- They're shown separately so you can see case patterns; combine mentally or lowercase first.
Are spaces counted?
- Yes, spaces appear in the table as their own entry.
What is frequency analysis used for?
- Cipher solving, linguistics, compression and data validation.
Does it work with other languages?
- Yes, any Unicode text is counted.
Is there a text limit?
- No practical limit.
Is my text private?
- Yes, it never leaves your browser.
Related tools you may need
- Letter Frequency Counter — A–Z frequency table for any text.
- Character Counter — Count characters with and without spaces — great for tweets and metas.
- Text Statistics Analyzer — One dashboard for every text metric that matters.
- Vowel Counter — Count vowels and their breakdown.
- Word Frequency Counter — See which words appear most often in your text.
- SEO Heading Analyzer — Map the heading outline of any page.
- Syllable Counter — Estimate the total syllables in your text.
- Unique Word Counter — Count how many distinct words your text contains.
Keep exploring
Browse the full tools directory, filter by category, or read guides on the Text Tools Hub blog.