Letter duplicates
Count repeated, unique, and absent letters.
Analyze a text to find duplicate letters, unique letters, missing letters, and occurrence counts.
Source text
0 source char.
Result
Duplicate letters
Unique letters
Missing letters
Occurrences
| Letter | Count |
|---|
Paste text to begin.
Quick explanation
This tool goes further than a simple missing-letter list: it counts every letter and separates duplicates from letters used only once.
Try this too
Need a faster version?
If you only need absent letters, Missing letters is more direct and lighter.
Additional information
What is the Letter duplicates tool for?
This tool analyzes each letter occurrence. Unlike Missing letters, it does not only show absent letters: it also shows repeated letters, letters used only once, and the exact count for each letter.
Duplicates
Duplicate letters appear at least twice. They can reveal a structure, repetition, or constraint in a puzzle.
Unique letters
Unique letters appear only once. They can help spot a signature, acrostic, or unusual pattern.
Missing letters
Absent letters are still shown, but if you only need that information, the Missing letters tool is more direct.
Difference between the two tools
| Tool | What it shows | Best use |
|---|---|---|
| Missing letters | Absent and present letters. | Quick alphabet or pangram check. |
| Letter duplicates | Duplicates, unique letters, absent letters, and an occurrence table. | More detailed analysis of a text, keyword, or clue. |
Example
In ABRACADABRA, A appears several times, some letters are unique, and many alphabet letters are absent. This kind of report is more informative than a simple missing-letter list.
Limits and reuse
AppErgo tools are provided free of charge for practical and informational purposes. Although care is taken in their design, a result may be incomplete, unexpected or incorrect. Before relying on a result for any important use, check it using an appropriate method.
To report a bug in the tool, you can use the dedicated bug report form.
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