How to Use Text Case Converter

1Paste or type the text you want to reformat into the input box.
2Click any of the case conversion buttons: UPPERCASE, lowercase, Title Case, Sentence case, or Toggle Case.
3Inspect the converted output immediately in the result pane.
4Click 'Copy Output' to copy the result or 'Download TXT' to save it as a plain text file.

Key Features & Privacy

✦Five dedicated transformation modes: UPPERCASE, lowercase, Title Case, Sentence case, and tOGGLE cASE.
✦Locale-aware Unicode character case conversion (`toLocaleUpperCase` / `toLocaleLowerCase`).
✦Smart Title Case rules that keep minor conjunctions and prepositions lowercase unless at the start of a sentence.
✦Instant clipboard copy and `.txt` file export.

Frequently Asked Questions

How does Sentence case handle multiple paragraphs?

Sentence case capitalizes the first letter of the text and the first letter following sentence-ending punctuation (`.`, `!`, `?`) as well as new lines, while lowercasing the rest.

Does it work with accented and non-English Latin characters?

Yes, Unicode-aware JavaScript string transformations ensure accented letters like é, ñ, ü, and ç convert accurately.

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