Find Duplicate Letters
Free online duplicate letter finder. Identify all letters that appear more than once in any text.
About This Free Online Find Duplicate Letters
Analyze text to find all duplicate letters (letters that appear more than once). View results as a frequency table showing each letter, its count, and duplicates highlighted inline in the text. Toggle case sensitivity and choose to exclude single occurrences. Perfect for word games, writing analysis, or checking letter distribution in text.
Features of Our Find Duplicate Letters
- Find all duplicate letters in text
- Frequency table with count and percentage
- Inline highlight of duplicate letters
- Case-sensitive toggle
- Exclude single occurrences option
How to Use the Find Duplicate Letters
Using this tool is simple and requires no signup or registration. Follow these steps:
- Paste or type text to analyze for duplicate letters.
- Toggle case sensitivity and other options.
- View the frequency table and inline highlights.
- Copy the analysis or results.
Frequently Asked Questions About Find Duplicate Letters
What counts as a duplicate letter?
A letter is considered a duplicate if it appears more than once in the text. Single-occurrence letters can be excluded from results.
Does this include numbers and symbols?
No. Only letters (A-Z, a-z) are analyzed. Use character-frequency-counter for full character analysis.
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.