The main writing styles
- Sentence case — only the first letter of each sentence is capitalised: “How to compress an image.” Common for body text and many modern headings.
- Title Case — major words are capitalised: “How to Compress an Image.” Used in many headlines and book titles.
- UPPER CASE — every letter capitalised. Useful for short labels; hard to read in long text.
- lower case — every letter small. Useful for tags, email addresses and cleaning data.
Convert text in one click
- Paste your text into the Original text box of the Case Converter.
- Choose a style. The result appears in the Converted text box, and your original is left untouched so you can try other styles.
- Copy or download the result. To apply a second change, select Use result as original.
Fixing caps lock text: convert “tHE MEETING IS ON fRIDAY” to Sentence case to get “The meeting is on friday”, then capitalise names such as “Friday” by hand.
Title case rules
Style guides disagree on details, but most capitalise nouns, verbs, adjectives, adverbs and pronouns, and keep short articles, conjunctions and prepositions (“a”, “an”, “the”, “and”, “or”, “of”, “in”, “to”) in lower case unless they start the title. The converter uses this common middle ground. If you follow a specific guide such as AP or Chicago, review words like “with”, “from” and “about”, which those guides treat differently.
Programming naming styles
| Style | Example | Typical use |
|---|---|---|
| camelCase | totalPrice | JavaScript variables and functions |
| PascalCase | TotalPrice | Class and component names |
| snake_case | total_price | Python, database columns |
| kebab-case | total-price | CSS classes, URLs, file names |
| CONSTANT_CASE | TOTAL_PRICE | Constants and environment variables |
For web addresses specifically, the URL Slug Generator also removes accents and unsafe characters.
Things to check after converting
Automatic conversion cannot recognise proper nouns and acronyms. After converting to sentence or lower case, check names of people, places, brands and abbreviations such as “NASA” or “PDF”. If you need to change one word everywhere, the Find and Replace Tool can do it in one step.
Frequently asked questions
Is there a keyboard shortcut for changing case?
In Microsoft Word, Shift+F3 cycles through cases for selected text. Google Docs has Format → Text → Capitalisation. Outside those programs, a converter is the quickest option.
Does it work with other languages?
Yes, for languages that have upper and lower case. It uses general Unicode rules, which may not match some local conventions, such as the Turkish dotted and dotless i.