How to convert text case

Fix accidental caps lock, style a headline, or format identifiers — seven case styles, one click each.

Everyone has retyped a sentence because caps lock was on, and every developer has manually reformatted a list of names into snake_case. The Toolsfully case converter handles both worlds: writing styles (UPPERCASE, lowercase, Title Case, Sentence case) and code styles (camelCase, snake_case, kebab-case). Paste, click, copy — all in your browser, with nothing sent anywhere.

Step-by-step

1. Open the Case Convert tool. Go to Text Tools and select the Case Convert tab.
2. Paste your text. Anything from a single word to whole documents.
3. Click a style. The text converts in place. Click another style to re-convert — lowercase is a handy reset.
4. Copy or download. Use the Copy button for your clipboard, or Download .txt for a file.

Tips

• Fix caps lock in two clicks. Click Sentence case to turn SHOUTED TEXT back into normal prose with capitals after periods.
• Title Case capitalizes every word. That's the simple convention. House styles that lowercase small words ("of", "the") vary — spot-check headlines against your style guide.
• Code cases strip punctuation. camelCase, snake_case, and kebab-case split your text into words and join them — perfect for turning labels into variable names, filenames, or URL slugs.

Frequently asked questions

What's kebab-case for?

URL slugs and CSS class names — lowercase words joined by hyphens, like my-blog-post-title.

Does it handle accents and other alphabets?

Yes — conversion is Unicode-aware, so café, naïve, and non-Latin scripts convert correctly.

Can I undo a conversion?

Converting is in-place, so use Ctrl/Cmd-Z in the text box, or keep your original elsewhere. UPPERCASE loses which letters were capitalized, so "undo by reconverting" can't restore proper nouns.