Title Case capitalizes the first letter of each major word. Small words like "a", "an", "the", "in", "on" typically remain lowercase unless they start the title.

What is Sentence case?

Sentence case capitalizes only the first letter of sentences, with the rest lowercase. This is normal text formatting used in most paragraphs.

Can I convert large amounts of text?

Yes! Paste any amount of text and it will be converted instantly. The tool handles documents of any size.

Does it handle non-English characters?

Yes, the converter properly handles accented characters and non-Latin scripts that have case distinctions.

Text Case Converter – Convert Text Online (Free Tool)

Free online Text Case Converter tool to convert text to uppercase, lowercase, title case, sentence case, and more. Transform your text instantly with various case options. Perfect for formatting titles, headlines, and proper nouns.

What is Text Case Converter?

Text Case Converter switches text between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, kebab-case, and CONSTANT_CASE in one click. Essential for developers renaming variables across naming conventions, writers normalising capitalisation, and anyone cleaning up SHOUTED-COPY pasted from spreadsheets.

Why use this tool?

Works offline after the first page load
Lightweight page weight that loads quickly even on slow connections
Works on desktop, tablet, and mobile in any modern browser
Cleanly handles pasted content with mixed line endings (CRLF, LF, CR)
No character or word-count cap on the input

How to use

Paste or type your text into the input area
Tweak any available options to match the result you want
Copy the output from the bottom panel or download it as a file

Examples

API field rename

Input: "user_first_name" → camelCase: "userFirstName" / Pascal: "UserFirstName" / kebab: "user-first-name" — paste straight into the new naming convention.

Normalise a headline

Input: "the QUICK brown FOX" → Title Case: "The Quick Brown Fox" — fixes pasted text with random capitalisation.

Generate a CSS class from a label

Input: "Primary Action Button" → kebab-case: "primary-action-button" — drop into a className attribute.

Common use cases

Renaming variables across naming conventions during refactors
Converting database column names (snake_case) to API field names (camelCase)
Generating slugs from headings (Title Case → kebab-case)
Cleaning up data pasted from spreadsheets with ALL CAPS columns
Producing CONSTANT_CASE keys for environment variables

Troubleshooting

Acronyms came out wrong (e.g. "iOS" → "Ios").: Title Case capitalises only the first letter of each word. For acronyms, do a manual pass or use a custom dictionary of preserved tokens.
Numbers split across cases unexpectedly.: Boundary detection splits between letters and digits. "user2name" might become "user-2-name". Strip digits beforehand or join manually if needed.
Non-Latin characters got mangled.: Title Case relies on Latin word boundaries. For other scripts, the input is usually preserved unchanged — open an issue if you see a specific bug.

Frequently Asked Questions

Our converter supports: UPPERCASE, lowercase, Title Case, Sentence case, aLtErNaTiNg, and Start Case for various formatting needs.

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