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Convert text to any case instantly — UPPER, lower, Title, camelCase, snake_case and more.
The Case Converter transforms text between UPPERCASE, lowercase, Title Case, Sentence case, and common programming cases so you can reformat headings, code identifiers, or messy pasted text in a click.
It's a fast fix for the constant small friction of getting capitalisation right.
Each mode applies a clear rule: uppercase and lowercase flip every letter; Title Case capitalises each word; Sentence case capitalises the first letter of each sentence; and programming cases join or split words with the right delimiters and capitalisation. The transformation is purely local and instant.
Because it never touches a server, you can safely reformat private notes or code.
Paste 'the sovereign agentics toolkit' and Title Case returns 'The Sovereign Agentics Toolkit', while UPPERCASE gives 'THE SOVEREIGN AGENTICS TOOLKIT' — ready to drop into a heading or a constant name.
Upper, lower, Title, Sentence, and common code cases for identifiers.
Yes — it only changes letter casing, leaving punctuation and spacing intact.
No — conversion runs entirely in your browser.
It follows standard casing rules, which work for most Latin-script text.
Yes — 25 languages, free to use.