Eleven useful case styles
Handle everyday capitalization and developer naming formats in the same focused workspace.
All tools
Writing tool · Instant conversion
Uppercase & Lowercase Converter
Change capitalization cleanly, from everyday uppercase and lowercase to polished titles and developer-friendly naming styles.
Text stays in your browser
Choose a case
Result updates instantly
Words
0
Characters
0
Lines
0
Input
Type or paste your original text
Converted result
UPPERCASE
Unicode-aware · Preserves your original input · No upload11 conversion styles
How it works
The right text case in three quick steps.
Keep the original visible, compare the converted result, then take exactly the version you need.
- 01
Paste or type text
Add any text to the input editor. Line breaks, punctuation, symbols, and spacing are retained wherever the chosen case allows.
- 02
Choose a text case
Switch between uppercase, lowercase, title, sentence, camel, Pascal, snake, kebab, alternating, and inverted case.
- 03
Copy or download
Copy the converted result in one click or save it as a plain UTF-8 text file.
More than capital letters
A complete case toolkit for writing and code.
Unicode-aware conversion
Modern browser case mapping supports accented letters and writing systems beyond basic English A–Z.
Private and instant
Every transformation happens locally as you type. Text is never uploaded, saved, or sent to a server.
Text case questions
Uppercase, lowercase, title case, and privacy.
How do I convert lowercase text to uppercase?+
Paste or type your text into the Input box and choose UPPERCASE. The converted result appears immediately and can be copied or downloaded.
What is sentence case?+
Sentence case capitalizes the first letter at the beginning of the text and after sentence-ending punctuation while converting the remaining letters to lowercase.
What is title case?+
Title case capitalizes the important words in a heading while keeping common short words such as and, of, and the lowercase when they are not the first or last word.
Can I convert text to camelCase or snake_case?+
Yes. The converter includes camelCase, PascalCase, snake_case, and kebab-case for identifiers, filenames, URLs, and code-related work.
Does the converter work with accented letters?+
Yes. It uses the browser's Unicode-aware uppercase and lowercase mapping, so letters such as é, ñ, and å are handled correctly.
Is my text stored?+
No. Conversion happens entirely inside your browser, and your text is not uploaded or saved by the tool.
More focused tools, ready when you are.
Explore the growing collection for calculations, documents, writing, and everyday work.