No uploads · runs in browser
Case Converter
Convert text between 9 letter cases: uppercase, lowercase, camelCase, snake_case and more.
Favorite it to find it fast on home
When to use it
helloWorld → hello_world (snake_case)
user-profile-card → userProfileCard (camelCase)
MY_VAR_NAME → my-var-name (kebab-case)
How to use it
1Step 1Paste your text into Original to start
2Step 2Press UPPER and the result appears below
3Step 3Use the copy button to take the result anywhere
If the result looks off
The result looks cut off
Use the copy button to get the full result.
My input disappeared
It is saved on this device. Clearing browser storage removes it too.
Frequently asked questions
Which cases are supported?
Upper, lower, capitalize, camel, pascal, snake, kebab, alternating, and inverse — 9 in total.
Does it work on non-English text?
Case only applies to letters with case, so CJK text passes through unchanged. Use it for variable names, filenames, and slugs.