Hoofdletteromzetter
Transform je tekst direct. Convert between UPPERCASE, lowercase, Title Case, and more—free, fast, geen registratie.
Our hoofdletteromzetter is de snelste manier om tekst te transformeren tussen verschillende hoofdletterstijlen. Whether you accidentally typed in caps lock, need to format titles properly, or want to fix inconsistent capitalization, deze gratis tool regelt het direct—geen account vereist, geen software om te installeren.
The tool supports seven conversion modes: UPPERCASE converts everything to capital letters, perfect voor headings, acronyms, and emphasis. lowercase makes everything small, useful for reformatting shouting text or creating a subdued tone. Title Case capitalizes the first letter of each word, following standard title formatting rules. Sentence case capitalizes only the first letter of each sentence, ideaal voor paragraph text.
For creative purposes, aLtErNaTiNg CaSe creates the popular mocking text style gebruikt in memes and sociale media. Inverse case flips existing capitalization—turning upper to lower and vice versa—useful for fixing caps lock mistakes. Capitalize Words ensures every word starts with a capital, regardless of word length.
Professionals use case conversion constantly: writers fixing manuscript formatting, marketers preparing ad copy, developers standardizing codeopmerkingen, students formatting citations, and sociale media managers crafting posts. Our tool processes text direct in je browser—je inhoud never leaves je apparaat, voor volledige privacy.
Unlike basic find-and-replace, proper case conversion handles edge cases intelligently. Title Case, for example, correctly handles contractions, preserves intentional capitalizations, and follows typographic conventions. Whether you're processing a single headline or an entire document, the conversion maintains je tekst's integrity while transforming its appearance.
Conversion Examples
See how each mode transforms text
UPPERCASE
All letters converted to capitals
lowercase
All letters converted to small
Title Case
Major words capitalized
Sentence case
First letter of sentences capitalized
aLtErNaTiNg CaSe
Alternating upper and lower
Inverse Case
Swap upper and lower
Quick Copy Results
Klik om te kopiëren common case conversions
Hoe te gebruiken
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Hoofdletteromzetter FAQ
Title Case capitalizes the first letter of major words while keeping minor words (like 'a', 'the', 'and', 'of') lowercase, unless they start the title. Use it for headlines, article titles, book titles, and headings. Example: 'The Art of War' not 'The Art Of War'.
Sentence case capitalizes only the first letter of the first word in each sentence, like normal writing. Title Case capitalizes the first letter of most words. Use Sentence case for body text and paragraphs; use Title Case for headlines and titles.
Nee. Alle tekstverwerking gebeurt direct in je browser. Je tekst verlaat nooit je apparaat en wordt nooit naar een server verzonden. We hebben geen toegang tot wat je typt—je inhoud blijft volledig privé.
Yes, Word has built-in case conversion (Shift+F3 cycles through options, or Format → Change Case). However, our tool offers more options like alternating case and is accessible without opening Word. You can copy the result directly into your document.
aLtErNaTiNg CaSe became popular as 'mocking SpongeBob' text in memes, used to indicate sarcasm or mockery. It's also used for stylistic effect in usernames, sociale media posts, and creative writing where you want to convey a mocking or chaotic tone.
Simply paste your ALL CAPS TEXT here and click 'Sentence case' to properly capitalize sentences, or 'lowercase' if you want all small letters. The 'Inverse Case' option also works if you had caps lock on while typing.
Yes! The converter handles accented characters (é, ñ, ü), Cyrillic, Greek, and other Unicode letters. Numbers, symbols, and punctuation remain unchanged. Only actual letters are affected by case conversion.
Absoluut! De tool werkt volledig op smartphones en tablets. Tap the input box to type or paste text, then tap your desired conversion button. The 'Copy' button works the same way—tik om te kopiëren the result.
De tool verwerkt teksten tot 100.000 tekens efficiënt in most browsers. For very large documents, processing may take a moment. Er is geen praktische limiet for typical use cases like articles, emails, and sociale media content.
In standard Title Case, articles (a, an, the), coordinating conjunctions (and, but, or), and short prepositions (of, in, to) stay lowercase unless they're the first or last word. Our Title Case follows these conventions automatically.