GenzeeCase Converter
Paste text and switch it to UPPERCASE, lowercase, Title Case, Sentence case, aLtErNaTiNg case or a clean URL slug — one click each, all in your browser.
Why a case converter?
Because retyping is misery. A heading arrives IN FULL CAPS from a client, a CSV export is all lowercase, a document needs Title Case headings, a blog system wants a hyphenated slug — and manually fixing case in a long text is slow and error-prone. This tool applies consistent casing rules to any amount of text instantly, and because it runs entirely in your browser, it is safe for confidential material.
How to use it
Paste your text, click the style you need, and copy the result. The six modes:
- UPPERCASE / lowercase — every letter converted.
- Title Case — each significant word capitalised; short connector words (a, of, the, and…) stay lowercase except at the start, following common headline style.
- Sentence case — the first letter after every full stop, question or exclamation mark is capitalised; everything else lowercased.
- aLtErNaTiNg — letters alternate case (the internet's sarcasm font).
- url-slug — lowercased, punctuation stripped, spaces collapsed to hyphens: ready for URLs and filenames.
How the conversions work
Sentence: capitalise after ^ . ! ?
Slug: lowercase → remove non a–z 0–9 → spaces → hyphens
Worked example
A marketer receives the line SUMMER SALE STARTS FRIDAY AT ALL BRANCHES OF THE STORE. Sentence case turns it into copy for a paragraph; Title Case produces the heading "Summer Sale Starts Friday at All Branches of the Store" — note "at", "of" and "the" correctly staying small; and the slug button yields summer-sale-starts-friday-at-all-branches-of-the-store for the landing-page URL. Three formats, three clicks, zero retyping.
When is this useful?
Fixing caps-lock accidents, formatting headings consistently across a document, generating URL slugs for blogs and product pages (clean, descriptive URLs are one of Google's own SEO recommendations), preparing data for systems that require a fixed case, and social posts where alternating case is the joke. Writers will also want the word counter alongside it, and the slug output pairs naturally with the QR code generator for short printed links.
Frequently asked questions
Which words stay lowercase in Title Case?
Common short connectors — a, an, and, as, at, but, by, for, in, of, on, or, the, to, vs — unless they begin the text. Different style guides vary slightly; this tool follows the common headline convention.
Does sentence case fix names and places?
No — it lowercases everything then capitalises sentence starts, so proper nouns like 'karachi' stay lowercase. Re-capitalise names manually after converting.
What characters does the slug mode remove?
Everything except English letters, digits, spaces and hyphens. Accented and non-Latin characters are dropped, so check slugs for non-English text before using them.
Is my text uploaded anywhere?
No — conversion happens entirely in your browser's memory. Nothing is transmitted or stored; closing the tab erases it.
Is there a length limit?
No practical one — the tool handles book-length text. Only extremely large pastes (millions of characters) might briefly slow an older device.