Text Case Converter – minimal, single file, instant
No frameworks. No tracking. Works offline once opened.
Input text
Output text
UPPERCASE
lowercase
Sentence case
Title Case
camelCase
PascalCase
snake_case
SCREAMING_SNAKE_CASE
kebab-case
Train-Case
dot.case
iNVERSE cASE
aLtErNaTiNg cAsE
slugify (web)
trim + collapse spaces
normalize unicode (NFC)
dedupe lines
sort lines A→Z
sort lines Z→A
reverse characters
reverse words per line
reverse lines
strip diacritics
keep letters & numbers
Apply
Auto‑apply
Chain on output
Copy output
Swap ⟷
Clear
Download .txt
Shortcuts:
Ctrl/Cmd + Enter = Apply
Ctrl/Cmd + B = Swap
Ctrl/Cmd + L = Clear
Local only. Your text never leaves the page. ✨