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Index > Reference > Filters > Casing Filters > Letters Case Filter

This filter changes the case of letters into one of the following styles:

- Capitalize
  First letter is uppercased in each word, and other letters are lowercased.
  Words are separated by the default space character, which can be changed by adding the Space Character Filter to the Applied Filters List before this filter.
- Upper Case
  All letters are uppercased.
- Lower Case
  All letters are lowercased.
- Sentence Case
  First letter in each sentence is uppercased and all other letters are lowercased.
  You can define which characters mark sentence end by adding the Sentence End Characters the Applied Filters List before this filter..
- First Letter Up
  First letter in name is uppercased and all other letters are lowercased.
- Toggle Case
  Uppercase letters in the original name are lowercased and vice-versa.
- Weird Case
  Mixed casing. You can set the chance for uppercase letters.
  - 'Fixed Places' is unchecked
    Case of each letter is randomly determined.
  - 'Fixed Places' is checked
    Letters in same positions in different names have the same casing.