Find Duplicate Letters in Text

Ever wondered which letters appear more than once in your writing? The Find Duplicate Letters in Text Tool helps you spot repeated letters in any text, showing each duplicate along with how many times it appears. It updates live and is great for quick analysis, cipher work, or text cleanup.

Paste your input above or import a file below.
No file chosen
Supported file types: .txt, .csv, .tsv, .log, .json, .xml, .md, .ini, .yaml, .yml, .html, .htm, .css
Total duplicate letters: 0

How to Use:

  1. Paste or type your content into the Input Text box.
  2. (Optional) Use Choose File to upload a .txt, .csv, .json, .html, or other supported text-based file.
  3. The tool will instantly analyze and display a list of all duplicate letters found (A–Z, case-insensitive) with their counts.
  4. Use Copy Output to copy the list or Export to File to download the results.
  5. Click Clear All to reset everything and start fresh.

What Find Duplicate Letters in Text Tool can do:

This tool scans your input and tallies all letters (ignoring punctuation, numbers, and case). It filters out any that appear only once and returns a clean, sorted list of just the duplicates. You get the full count and a fast visual of which letters dominate your input. Everything happens in real time without page reloads.

Example:

Input:

Letters repeated again and again.

Output:

a: 4
d: 2
e: 6
g: 2
n: 4
r: 2
t: 3

Total duplicate letters:

7

Common Use Cases:

Perfect for cryptographic prep, identifying overused letters, refining word games, or just exploring patterns in your own writing. Writers and editors can use it to spot repetition, puzzle designers can build letter constraints, and devs can use it to debug text-based inputs.

Useful Tools & Suggestions:

If you’re digging into repetition, Find Duplicate Words in Text lets you scale the concept up to full terms great for spotting patterns in larger documents. And when you want to take action on those duplicates, Replace Letters in Text gives you full control over how each character gets handled.

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