Letter Frequency Counter
Count how often each letter A-Z appears in your text. See frequency distribution, percentages, and ranked results instantly.
About This Free Online Letter Frequency Counter
Our free online letter frequency counter analyzes your text and shows exactly how often each letter of the alphabet appears. Results are ranked from most to least frequent with counts and percentages. This is useful for cryptogram solving, language analysis, improving writing diversity, and understanding text composition. All processing runs entirely in your browser.
Features of Our Letter Frequency Counter
- Complete A-Z frequency distribution table
- Count and percentage for every letter
- Sorted by frequency — most common first
- Total character count and unique letter count
- Distinguishes but groups uppercase and lowercase
- Real-time analysis as you type or paste
- 100% private — browser-only processing
How to Use the Letter Frequency Counter
Using this tool is simple and requires no signup or registration. Follow these steps:
- Type or paste your text into the text area.
- View the frequency table showing each letter, count, and percentage.
- Letters are ranked from most to least frequent for quick insight.
- Use the data for cryptogram solving, language learning, or writing analysis.
Frequently Asked Questions About Letter Frequency Counter
What is letter frequency analysis used for?
Letter frequency analysis is commonly used in cryptography for solving ciphers, in linguistics for studying language patterns, for improving writing style by checking letter diversity, and in forensic document analysis.
What is the most common letter in English?
The letter "E" is the most common in English, appearing in approximately 12-13% of all text. The full frequency order is: E, T, A, O, I, N, S, H, R, D, L, C, U, M, W, F, G, Y, P, B, V, K, J, X, Q, Z.
Does it distinguish between uppercase and lowercase?
Both uppercase and lowercase versions are counted together for each letter. So "A" and "a" are combined into a single count for the letter A. This gives you the total occurrence of each letter regardless of case.
Why Choose Text Toolbox?
Text Toolbox provides free, private, and instant online text tools. Unlike other text utility websites that require signup accounts or send your data to servers, all our tools process your text entirely in your browser. This means your content never leaves your device — we cannot see it, store it, or share it. Our tools are fast, lightweight, and work on any device with a modern web browser.