Runs in your browser. Nothing you enter is uploaded or stored.
A case converter changes the capitalisation of text in one step. The free Case Converter turns your text into Title Case, sentence case, UPPERCASE, lowercase or slug-case. It runs in your browser, so nothing you paste is uploaded or stored, and it is useful for headings, titles, labels and URL-style text.
Titles do real work in search: Google’s Google Search Central guidance on title links asks for descriptive, concise titles and says that boilerplate or unclear ones may be rewritten, so consistency in how you format them is worth a minute.
How to use the Case Converter
- Paste or type your text into the box.
- Choose the case you want: Title Case, sentence case, UPPERCASE, lowercase or slug-case.
- Review the converted text.
- Copy it into your page, spreadsheet or CMS.
- Switch to another case if you want to compare styles.
Convert a whole list at once, such as a column of headings, to keep a site consistent.
What each case does and when to use it
- Title Case: capitalises the main words. Common for page titles, headlines and book or article names.
- Sentence case: capitalises the first word and proper nouns. Often easier to read, and common for headings and buttons.
- UPPERCASE: all capitals. Use it rarely, because blocks of capitals are hard to read.
- lowercase: all small letters. Useful for tidying imported data or preparing text for matching.
- slug-case: lowercase words joined by hyphens, the style used in URLs.
How to read the results
Always read the converted text before you use it. Automatic conversion follows simple rules and cannot know your style guide.
- Brand and product names: a name with its own capitalisation, such as an internal capital, may be changed. Restore it by hand.
- Small words in Title Case: house styles differ on words like “and” or “of”. Check the result against your own rule.
- Acronyms: sentence case or lowercase may flatten them. Put them back in capitals.
- Proper nouns in sentence case: names of people and places may need capitals restored.
Choosing a style for SEO
Search engines do not care whether a title is in Title Case or sentence case. What matters is that your titles are clear, accurate and unique, and that you apply one style consistently. Pick one convention for titles and one for headings, and stick to it across the site.
If you want a slug for a page address, slug-case is a quick start, but for a URL built from a full title use the SEO Slug Generator, which also removes stop words and special characters.
Worked example and why it matters
Imagine a spreadsheet of fifty blog headings, some in capitals from an old export and some in lowercase. Paste the list into the converter, choose sentence case and every heading follows the same style in one step.
You then restore brand names and acronyms that were flattened. This is an invented scenario to show the workflow, and the exact fixes you need depend on your own text.
Mixed capitalisation makes a site look careless and makes titles harder to scan in search results. A single rule for titles, one for headings and one for buttons gives your pages a steady voice. Search engines do not reward a particular case, but readers notice. Settle the style in your editorial guidelines, and use the converter to bring old content in line.
Limits of the converter
The tool changes capitalisation only. It does not correct spelling, grammar or meaning, and it does not know language-specific rules. Text in languages with different capitalisation rules may need manual editing. Review anything that will be published.
For text that will become a web address, convert to slug-case, then shorten it by hand. For text that will be read by people, prefer sentence case or Title Case and check names and acronyms afterwards. When in doubt, convert a copy and keep the original so you can compare the two.
Be careful with lowercase on imported data: it can remove the capital letters that told you where names and sentences began, and those are hard to restore automatically.
Questions about the Case Converter
Should page titles use Title Case or sentence case?
Either is fine for search. Choose one style and apply it everywhere. Sentence case often reads more naturally, while Title Case suits formal headlines.
Why did the converter change my brand name?
It applies general rules to all text and cannot know that your brand has its own capitalisation. Retype the name after converting.
Is slug-case the same as a finished URL slug?
Not quite. Slug-case gives you lowercase words with hyphens. A finished slug is also short and free of filler words, so edit it or use a slug tool before publishing.
Browse the rest of the free content and writing tools or the full free SEO tools list. If you would rather have someone review your pages with you, see my on-page optimisation service or ask for a free audit.