How to use
Enter text and choose the required case mode. Copy the separate output when ready.
TextoLab · Works in your browser
Case Converter
Convert text to lower, upper, title, or sentence case.
✓ Your text stays in your browser.
Result
How it works
Locale-aware Unicode casing changes letters while preserving punctuation and line breaks. Title case uses a compact language-specific list of minor words.
Understanding the result
Punctuation and line breaks are preserved while letter case changes.
Practical example
Standardize copied headings, normalize uppercase notes, or prepare a sentence-style label.
Limitations
Title-case conventions vary by style guide; this tool uses compact language-specific minor-word lists.
Common question
Will accents be preserved?
Yes. Conversion uses locale-aware Unicode casing for English, Portuguese, and Spanish.
What this tool checks and changes
- Converts lower, upper, title, and sentence case.
- Uses locale-aware Unicode casing.
- Preserves punctuation, spacing, and line breaks.
Practical uses
- Standardizing headings and labels.
- Correcting text pasted in all caps.
- Preparing consistent titles in three languages.
Case Converter
A reliable three-step workflow
The processing remains in this browser; the supplied text is not sent to an external text-processing service.
- 1
Start with the original
Paste the complete text and preserve the parts whose structure matters.
- 2
Choose only relevant options
Each option changes a specific rule. Leave unrelated settings off.
- 3
Review before using the result
Read the output in context, then copy it only after confirming the intended meaning and formatting.