Case Converter: Change Text to Upper, Lower, Title & camelCase (Free)

You pasted a heading that came in ALL CAPS. You need a column of values in snake_case for a database. You want a title that's properly Title Case without manually capitalizing every word. Retyping is tedious and error-prone. A case converter does it in one click — here's a quick guide to the cases and when each one is right.

The cases, and when to use them

• UPPERCASE — emphasis, acronyms, constants in code. Use sparingly; all-caps reads as shouting.
• lowercase — casual text, URLs, tags, normalizing inconsistent input.
• Sentence case — Standard prose: first letter capital, the rest as written.
• Title Case — Headings and titles, with major words capitalized.
• camelCase — variable and function names in many programming languages (userName).
• snake_case — variables, file names, and database columns (user_name).
• kebab-case — URLs and CSS class names (user-name).

Knowing the convention for where the text is going saves you from fixing it later — code style guides and databases usually mandate a specific case.

How to convert

The free Case Converter handles all of these:

1. Open it — no signup.
2. Paste your text.
3. Pick the target case; the converted result appears instantly.
4. Copy it out.

It runs in your browser, so even text you'd rather not upload (client copy, internal data) stays on your device.

Where it saves real time

• Cleaning up pasted content that arrived in the wrong case.
• Formatting code identifiers — converting a list of human-readable names into camelCase or snake_case for variables or columns.
• Fixing headings dumped in caps lock back to proper Title Case.
• Normalizing data — making an inconsistent column all lowercase before processing.

What would be a tedious manual edit across dozens of lines becomes a single conversion.

Common questions

What's the difference between camelCase and snake_case? camelCase joins words with capitals (userName); snake_case joins them with underscores (user_name). Which to use depends on your language or style guide.

Can it convert a whole list at once? Yes — paste multiple lines and convert them together.

Is my text private? Yes. The converter runs entirely in your browser and uploads nothing.

Related reading: explore the other free tools, including the JSON Formatter and Diff Checker.

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