Find Duplicate Letters in Text
List the letters that appear more than once, with their counts. Runs entirely in your browser, so your data never leaves your device.
0 chars · 0 lines
Output
The result appears here as you type.
How to use Find Duplicate Letters in Text
- 1. Paste your text. Enter the word or passage you want checked for repeated letters into the input pane. Each character is examined individually, not grouped into words.
- 2. Choose Case sensitive if needed. Turn on Case sensitive to count 'L' and 'l' separately. Leave it off, the default, so uppercase and lowercase forms of the same letter are combined into one count.
- 3. Read the duplicate letters with counts. The output lists every letter that appears more than once, along with its exact count, so you can quickly see which letters dominate the text.
When to use Find Duplicate Letters in Text
Find Duplicate Letters in Text lists every letter that occurs more than once, with an occurrence count for each. Reach for it for word games, cipher analysis or simply checking a word's letter makeup.
- Checking a word for a game with repeat rules. Some word games disqualify entries with too many repeated letters. Check a candidate word here to see its exact repeat counts before submitting it as an answer.
- Studying letter frequency in a short sample. You want a quick look at which letters repeat most in a name, slogan or short phrase, for design or branding reasons rather than a full alphabet-wide frequency analysis.
- Debugging an anagram or crossword clue. You're building a crossword clue that hinges on repeated letters in the answer word. Verify the exact repeat pattern here before finalizing the clue.
Examples
Repeated letters
Input
hello
Output
l: 2
About the Find Duplicate Letters in Text tool
Find Duplicate Letters in Text runs as plain JavaScript in your browser tab, with no server behind it. List the letters that appear more than once, with their counts. Whatever you put in stays on your device from start to finish.
The tool is part of EditSafely's Text Tools section, 211 single-purpose utilities built around the same idea: open the page, get the result, keep your data to yourself.
You can shape the output with the Case sensitive setting, and the result refreshes the moment you change it. A worked example further down the page shows exactly what the tool produces for a real input.
That local-first design has practical benefits beyond privacy. The tool keeps working on a flaky connection once the page has loaded, results are instant because nothing round-trips to a server, and it is safe to use with confidential material.
Frequently asked questions
Does Find Duplicate Letters in Text cost anything?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Is it safe to paste sensitive or confidential data?
No data leaves your device. The whole tool is JavaScript that runs inside your browser tab, so there is no upload, no server-side processing and no log of what you did. If you disconnect from the internet after the page loads, it keeps working.
How much text can I process at once?
There is no fixed limit. Because the work happens on your own device rather than on a shared server, the practical ceiling is your machine's memory, which comfortably handles inputs far larger than typical online tools allow.
Do I need to sign up or install anything?
Nothing to install and no account needed. Open the page in any up-to-date browser, including on a phone or tablet, and the tool is ready.
How do I use the result?
The output panel has a one-click copy button, and you can keep refining the input while you work; the result updates in place as you type.