Case Converter
Paste your text below and convert it between 8 common case formats instantly.
CleanTextly's Case Converter switches text between 8 common case styles — UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, and kebab-case — right in your browser. Paste a heading, a list of names, or a block of code, pick a style, and the result updates instantly. Nothing is uploaded, so it's just as safe for a paragraph of client notes as it is for a batch of variable names.
Features
8 Case Styles
Convert between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, and kebab-case from a single dropdown.
Live Conversion
Output updates instantly as you type or switch modes — no need to click a button to see the result.
Multi-Line & Multi-Paragraph Support
Line breaks and paragraph spacing are preserved, and identifier styles like camelCase are applied to each line on its own.
Handles Messy Input Correctly
Inconsistent or random capitalization is normalized properly instead of being carried through into the result.
100% Private
Everything runs locally in your browser. Your text is never uploaded, logged, or stored anywhere.
How to Use
- 1
Paste your text
Add the text you want to convert into the input box.
- 2
Select a case style
Choose from UPPERCASE, Title Case, camelCase, snake_case, and more in the Conversion Mode dropdown.
- 3
Review the live result
The output box updates instantly as you type or change modes — there's nothing else to run.
- 4
Copy or clear
Copy the converted text with one click, or clear both fields to start over.
Example
Convert a Title to snake_case
Input
Total Monthly Revenue
Output
total_monthly_revenue
Common Use Cases
Preparing Code Variables
Turn a descriptive phrase into camelCase or PascalCase for use as a variable, function, or class name.
Formatting Database & CSV Columns
Convert column headers into snake_case or kebab-case for SQL schemas, CSV files, or config keys.
Cleaning Up Titles & Headings
Fix inconsistent capitalization in headlines, titles, or text pasted from another source.
Polishing Written Content
Apply Sentence case or Title Case to keep blog posts, documentation, or emails looking consistent.
Frequently Asked Questions
Yes. Line breaks and paragraph spacing are preserved, and camelCase, PascalCase, snake_case, and kebab-case conversions are applied to each line individually.
No. Each line is converted on its own, and line breaks stay exactly where they were in the original text.
camelCase starts with a lowercase letter, e.g. totalMonthlyRevenue. PascalCase capitalizes every word including the first, e.g. TotalMonthlyRevenue.
Yes. Messy input like "hELLo WoRLD" is normalized to the correct word boundaries instead of carrying the random capitalization through into the result.
No. All conversion happens locally in your browser. Your text is never sent to a server or stored.