Free text case converter
Instantly convert text between every common case — Title Case, Sentence case, UPPERCASE, lowercase, camelCase, PascalCase, kebab-case, snake_case and more. This free tool — from a Singapore marketing agency — updates as you type and copies any version with one click. Handy for headlines, titles, slugs, code identifiers, spreadsheets and cleaning up messy pasted text. It runs entirely in your browser; nothing is uploaded.
When to use each case
Title Case is for headlines and blog titles — it capitalises the main words while leaving small words (a, the, of, and) lowercase. Sentence case capitalises only the first word of each sentence and is increasingly preferred for headings, buttons and UI text because it reads naturally. UPPERCASE suits short labels and calls-to-action but hurts readability in long passages. kebab-case and snake_case are for URL slugs, file names and code, while camelCase and PascalCase are developer conventions for variables and class names.
Title Case vs Sentence case for headlines
Both are valid — the choice is about brand voice and consistency. Title Case looks more formal and traditional (common in news and print); Sentence case feels modern, friendly and easier to read, which is why many digital brands and design systems now default to it. What matters most is picking one and applying it consistently across your headings, navigation and buttons. Whichever you choose, this tool converts your text in a click so you never have to retype a heading.
A note on Title Case rules
Title Case isn’t just capitalising every word — standard style keeps short conjunctions, articles and prepositions (and, or, the, a, of, to) lowercase unless they’re the first or last word. This tool follows that convention, so your headlines look professionally styled rather than Awkwardly Capitalising Every Little Word. If you do want every word capitalised, use the “Capitalise Each Word” option instead.
Frequently asked questions
What is the difference between Title Case and Sentence case?
Title Case capitalises the significant words in a phrase (keeping small words lowercase); Sentence case capitalises only the first word and any proper nouns. Title Case suits formal headlines; Sentence case reads more naturally and is popular for modern UI and headings.
What is kebab-case used for?
kebab-case (words-joined-by-hyphens, all lowercase) is the standard for URL slugs and many file names because hyphens are search-engine friendly and URL-safe. Use it when generating web addresses.
Is my text private?
Yes — all conversion happens locally in your browser with JavaScript. Nothing you type or paste is sent to a server or stored.
Can I convert a whole paragraph?
Yes — paste any amount of text and every case updates live. Sentence case is especially useful for fixing text that was pasted in all caps or all lowercase.
