Case Converter
Convert text between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case and more. The output stays ordinary text, so it is safe to paste back anywhere.
Every case
Title Case follows real style rules — short words stay lowercase — and Sentence case repairs text that arrived in ALL CAPS. Tap one to copy it.
Every other style
The same text in every style Confileo generates. Tap any one to copy it — they all paste the same way.
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About Case Converter
Confileo's Case Converter tool converts text between UPPERCASE, lowercase, Title Case, Sentence case and the programmer cases. Everything runs in your browser, free and without signup, and your files are deleted automatically after processing.
Changing the case of text you already have is one of those jobs that is trivial in principle and tedious in practice: a heading that arrived in ALL CAPS, a spreadsheet column typed in lowercase, a paragraph pasted from a PDF with the capitalisation mangled, a variable name that needs to become a file name. Retyping it is slow and introduces typos. This page converts between eleven cases instantly, and the output is ordinary text you can paste straight back into whatever it came from.
That last point separates this page from the rest of the text tools on this site. Every other style here swaps your letters for lookalike Unicode characters, which is why they survive fields that strip formatting — and also why search engines and screen readers cannot read them. Case conversion changes nothing but capitalisation. The result is plain ASCII, so it stays fully searchable, fully accessible, and safe to put in a document, a database or a source file.
Title Case is the one worth checking against a converter you already trust, because most get it wrong. The naive implementation capitalises every word and gives you "The Lord Of The Rings". Real title case, as Chicago and AP both define it, keeps articles, coordinating conjunctions and short prepositions lowercase unless they begin the title — "The Lord of the Rings". This page applies that rule to twenty-two of the usual minor words, which is the difference between a heading that looks edited and one that looks automated.
Sentence case does more than capitalise the first letter. It lowercases everything else first, then capitalises after each full stop, question mark and exclamation mark, so it actually repairs text that arrived in ALL CAPS rather than leaving you with one capital and a shouting paragraph. Alternating case alternates over letters rather than over every character, so the pattern does not stutter across spaces and punctuation the way a naive implementation does.
The four programmer cases — camelCase, PascalCase, snake_case, kebab-case and CONSTANT_CASE — split on existing word boundaries as well as on spaces, so pasting in an existing camelCase identifier converts it correctly instead of treating it as one long word. That makes the page useful for renaming things between languages and conventions, not only for prose.
All twenty-six of the site's Unicode styles are listed underneath, in case what you actually wanted was decoration rather than capitalisation. Everything runs in your browser; nothing is uploaded or stored.
Quick facts
- Price
- Free — no paywall
- Signup
- Not required
- Max file size
- Up to 100 MB per file
- Your files
- Deleted automatically after processing
- Works on
- Any browser — desktop, tablet, mobile
- Watermark
- None on your output
How to use Case Converter
- 1Paste the text you want to re-case.
- 2Pick the case you need — every one updates as you type.
- 3Tap it to copy the converted text.
Why use Confileo
- ✓100% free with no daily limits, watermarks or hidden paywalls.
- ✓No signup or account required — start using it instantly.
- ✓Your files are processed securely and deleted automatically for full privacy.
- ✓Works in any browser on desktop, tablet and mobile — nothing to install.
- ✓Fast processing built to handle real, everyday document workloads.
Case Converter — Frequently asked questions
How do I change ALL CAPS text back to normal?
Use Sentence case. It lowercases everything first and then capitalises after each full stop, question mark and exclamation mark, so a shouting paragraph comes back as ordinary prose. Title Case is the one to use for a heading instead.
Does Title Case follow real style rules?
Yes. Articles, coordinating conjunctions and short prepositions stay lowercase unless they start the title, so you get "The Lord of the Rings" rather than "The Lord Of The Rings". Twenty-two minor words are treated this way, matching Chicago and AP practice.
Is the converted text still normal text?
Yes, and that is the difference between this page and the other text tools here. Only the capitalisation changes — the output is ordinary ASCII, so it stays searchable, readable to screen readers, and safe to paste into a document, a spreadsheet or a source file.
Can it convert camelCase to snake_case?
Yes. The programmer cases split on existing word boundaries as well as on spaces, so pasting an identifier like convertToSnakeCase is read as three words and converts correctly rather than being treated as one long token.
Is this tool really free?
Yes. Every Confileo tool is free to use with no daily caps, no watermark on your output and no credit card required.
Do I need to create an account?
No. You can use the tool straight away without signing up or logging in.
Are my files safe and private?
Yes. Your files are processed for the task you requested and then deleted automatically — they are never shared or kept.
Does it work on my phone?
Yes. The tool runs in any modern browser, so it works the same on desktop, tablet and mobile with nothing to install.