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Toolmigo

Case Converter

Convert uppercase to lowercase, title case and more. Instant conversion — just paste and click.

100% Private

Runs entirely in your browser

Instant

Real-time processing

No Limits

No character limits

0 characters • 0 words

0 characters • 0 words

Why Use Case Converter?

Reformat Variables

Switch between camelCase, snake_case and kebab-case without retyping.

Headlines That Match

Apply your style guide's Title Case or Sentence case to any block.

Fix ALL CAPS

Quickly clean up text someone left in shouting mode.

About Case Converter

Case Converter switches text between nine case styles — UPPER, lower, Title, Sentence, camelCase, PascalCase, snake_case, kebab-case, and aLtErNaTiNg. Conversion is pure in-browser string manipulation — no upload, runs as you click.

Title Case capitalizes every word's first letter (no exceptions for the, of, etc.). Sentence case only capitalizes the first letter after each sentence break. The programming-style cases (camel, Pascal, snake, kebab) all use the same word-boundary detection — spaces, hyphens and underscores split words — so you can paste any source format and switch freely between them.

Common Questions

Title Case Capitalises Every Major Word — used for headlines and titles. Sentence case only capitalises the first letter of each sentence, like body copy. Most variants leave short words like 'a', 'the' and 'of' lowercase.

Word-joining conventions used in code: camelCase (no spaces, first word lowercase), PascalCase (no spaces, every word capitalised), snake_case (underscores), kebab-case (hyphens). Pick whichever matches your codebase.

Yes — only letter case changes. Newlines, blank lines, indentation and punctuation pass through untouched, so you can paste a whole document and keep its layout intact.

Yes — uppercase/lowercase work for most accented characters (é ↔ É, ñ ↔ Ñ). Some locale-specific edge cases (Turkish dotless i, German ß) follow JavaScript's default Unicode casing rules, which may not match locale-specific expectations.

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