Is it safe to use the Case Converter online?

Yes — and ours is safer than most. Many free online tools quietly upload your files to their servers to do the work. We don't. Everything happens inside your browser on your own device, so your files never reach the internet. There's no upload step, no server copy, and no way for us (or anyone else) to see what you're working on.

Are my files uploaded to a server?

No. There's no server-side processing here. The whole tool is a tiny app that runs in your browser — we don't even have a server that could receive your files. You can confirm this by opening your browser's network tab while you use the tool: nothing leaves your device.

Do I need to sign up or pay?

No. There's no account, no email collection, no credit card. The tool is free to use as much as you want, on as many files as you want. We're supported by a few unobtrusive ads on the page — not by your data.

What's the difference between camelCase and PascalCase?

camelCase starts with a lowercase letter (myVariable). PascalCase starts uppercase (MyVariable). Otherwise identical.

Will it preserve numbers?

Yes — numbers are kept in place. Only letters are case-shifted.

Does it work on non-Latin scripts?

Upper/lower works for any script that has case (Cyrillic, Greek). Word-based modes split on spaces and case changes.

Case Converter

Switch text between every common letter-case style. Useful for renaming variables, generating slugs, fixing screaming all-caps emails, or just experimenting.

Features

Ten styles: UPPER, lower, Title, Sentence, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, aLtErNaTiNg
Instant conversion as you type
Smart word splitting — handles 'myVar' AND 'kebab-case' AND 'snake_case'
Copy to clipboard with one click
Runs entirely in your browser

How to case converter

Paste text — Paste or type any text into the input box.
Pick a style — Click one of the ten case-style buttons.
Copy — Hit Copy on the output box and paste anywhere.

Frequently asked questions

Is it safe to use the Case Converter online?: Yes — and ours is safer than most. Many free online tools quietly upload your files to their servers to do the work. We don't. Everything happens inside your browser on your own device, so your files never reach the internet. There's no upload step, no server copy, and no way for us (or anyone else) to see what you're working on.
Are my files uploaded to a server?: No. There's no server-side processing here. The whole tool is a tiny app that runs in your browser — we don't even have a server that could receive your files. You can confirm this by opening your browser's network tab while you use the tool: nothing leaves your device.
Do I need to sign up or pay?: No. There's no account, no email collection, no credit card. The tool is free to use as much as you want, on as many files as you want. We're supported by a few unobtrusive ads on the page — not by your data.
What's the difference between camelCase and PascalCase?: camelCase starts with a lowercase letter (myVariable). PascalCase starts uppercase (MyVariable). Otherwise identical.
Will it preserve numbers?: Yes — numbers are kept in place. Only letters are case-shifted.
Does it work on non-Latin scripts?: Upper/lower works for any script that has case (Cyrillic, Greek). Word-based modes split on spaces and case changes.