Case Converter & Text Cleaner
Free online case converter and text cleaner. Change between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case and kebab-case, remove extra spaces, delete blank lines, remove duplicate lines and sort lines — paste once to clean lists, data and copy. Everything runs locally. ProductivityRuns locally
Use this tool
How to use
- Paste the text you want to clean into the box.
- Tap a function button; the result appears below and you can chain several operations.
- “Remove duplicates” keeps the first occurrence and its order; “Sort lines” sorts alphabetically.
- Copy the finished result with one click.
Frequently asked questions
How are duplicate lines detected?
Two lines count as duplicates only when they are identical. Later repeats are removed while the order of first occurrences is kept.
What is camelCase / snake_case / kebab-case?
They join words without spaces: camelCase capitalises every word after the first, snake_case joins with underscores, and kebab-case joins with hyphens — common in programming and URLs.
Is my original text changed?
No, the original stays in the input box and the cleaned result is shown separately so you can compare before copying.