About the Case Converter
Fix inconsistent headings, spreadsheet columns or variable names without retyping them. Choose a case, copy the result, and move on — conversion happens instantly in your browser.
How to use it
- 1Paste your textAny length works; the converter handles a single word or several pages of copy.
- 2Pick a case styleUppercase, lowercase, title, sentence, camelCase, snake_case, kebab-case or CONSTANT_CASE.
- 3Copy the resultThe converted text appears immediately and is ready for your document, codebase or CMS.
Why use this case converter?
- Nothing leaves your device. The work happens in your browser tab. There is no upload endpoint in this app, so your files and text cannot be stored, logged or seen by us.
- No upload wait. You skip the round trip to a server entirely. Results are limited by your own CPU, not by network speed or queue size.
- Free, no account, no quotas. No sign-up wall, no watermark, no daily limit. Optional accounts only exist to save favourites and presets across devices.
Frequently asked questions
Is my text safe to use here?
Yes. This tool runs entirely in your browser using JavaScript. Nothing you paste or open is sent to a server, and the page keeps no copy after you close it.
Do I need to create an account?
No. Every tool is fully usable without signing in. An account only adds saved favourites and reusable presets.
Does it work on a phone?
Yes. The interface is mobile-first with large touch targets and a stacked layout, so it works on phones and tablets as well as desktops.
What is the difference between title case and sentence case?
Title case capitalises the significant words in a heading (for example, “How to Merge PDF Files”). Sentence case capitalises only the first word and proper nouns (“How to merge PDF files”).
Which case should I use for variable names?
Use camelCase for JavaScript and Java variables, snake_case for Python and SQL columns, kebab-case for URLs, CSS classes and file names, and CONSTANT_CASE for constants and environment variables.