Case Converter
Convert text between upper, lower, title, sentence, kebab, snake, and camel case.
What this tool does
Convert text between common casing styles used in writing, URLs, code variables, and data-cleaning workflows.
Tool interface
Input
Output
Example input
snake Customer Order ID
Example output
customer_order_id
Step-by-step instructions
- On the first line, enter mode: uppercase, lowercase, title, sentence, kebab, snake, or camel.
- Leave a blank line, then paste the text.
- Click Transform to apply case conversion.
Common use cases
- Debugging request payloads and encoded values quickly.
- Generating development data and identifiers.
- Validating text, URLs, timestamps, and structured content.
Useful when normalizing labels, preparing variable names, and transforming human-readable text into machine-friendly formats.
Common mistakes to avoid
- Forgetting the required blank line between mode and text.
- Using unsupported mode names.
- Expecting punctuation to always be preserved in kebab/snake/camel outputs.
Frequently Asked Questions
What modes does Case Converter support?
uppercase, lowercase, title, sentence, kebab, snake, and camel.
Can I convert multi-line text?
Yes. Multi-line input is supported.
How do kebab and snake differ?
Kebab uses hyphens (`-`), snake uses underscores (`_`).
What input format does Case Converter expect?
Use plain text input, usually one item per line for list-oriented tools.
What does Case Converter output?
It returns transformed output that you can copy directly from the result panel.
Why might Case Converter return an error?
A common issue is: Forgetting the required blank line between mode and text.
Does Case Converter run in the browser?
Yes. Transformations are designed for in-browser usage so you can test and iterate quickly.
Can I copy or download results from Case Converter?
Yes. You can copy transformed output directly from the tool.
Related tools
Related guides
Browse all DataToolbox guides for more workflows.
Related categories
Looking for other utilities in this area? Data Cleaning Tools, Developer Data Tools