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Change letter case

Switch text to upper, lower or regular case.

Help and information

How to use

Replace all letters with capital letters, small letters, or start sentences with a capital letter.

  1. Type or paste your text.
  2. Adjust the result if needed.
  3. Click “Change letter case” and download the finished file.
Read the full guide
Frequently asked questions
Where is the processing performed?
The tool runs on your device, right in your browser. Files and entered text for this operation are not sent to the server.
What to do if the result is not suitable?
Take the original file or text and try other settings in the steps above. Compare the new result with the previous one. The original files on your device remain unchanged.
Features and limits

The "As in a sentence" mode does not understand the meaning of the text. Check and correct names, titles and abbreviations like MSU yourself.

.txt, .md → .txt

50 MB / file; 100 MB in total; 20 files.

Processing in the browser. No files are sent to the server for this operation.

Compare the source text and the result. Check names, titles and abbreviations; correct them manually if necessary. Copy the result or download a TXT file with plain text.