Text Case Converter.
Switch English text between uppercase, lowercase and sentence case. Your content stays on your device.
0 / 20,000 input units. Text is not saved between page visits.
English case rules. Names, abbreviations and sentence boundaries may need a final edit.
How to use this tool
Paste your text and choose UPPERCASE, lowercase, Capitalize Words or Sentence case. Copy or download the converted text. Input stays unchanged, so you can switch modes freely. Capitalize Words changes the first letter of each word; it is not an editorial title-case style. Sentence case uses punctuation and line breaks, not grammar analysis. Review names and abbreviations afterward.
Does this save or upload my text?
No. Text stays in the current page and is not sent to analytics. Refreshing or leaving can discard it; copy or download anything you want to keep. The input limit is 20,000 UTF-16 units, which can differ from the visible character count. Older browsers without word segmentation use a simpler Unicode-letter word count and code-point character count.