Case Converter

Change the capitalization of any text with one click. Choose from ten styles, from UPPERCASE to snake_case, and copy the result.

Your text is converted locally in your browser and never leaves your device.

How to use Case Converter

  1. Paste or type your text.
  2. Pick a conversion style, or type to see all styles update live.
  3. Copy the result you need.

About this tool

Fixing capitalization by hand is tedious and error-prone. The case converter applies consistent rules instantly for every style, from sentence case to programming-friendly camelCase, PascalCase, snake_case and kebab-case.

When to use it: fixing pasted headlines, preparing titles, or generating code-style identifiers.

Frequently asked questions

What is the difference between Title Case and Sentence case?
Title Case capitalizes the first letter of every major word. Sentence case only capitalizes the first letter of each sentence.
What are camelCase and snake_case for?
They are naming styles used in programming, where spaces are not allowed: camelCase, PascalCase, snake_case and kebab-case.
Which case should I use for headings?
Title Case for headlines and article titles; Sentence case for sub-headings, buttons and interface text is the common modern style.
Does it work with accented or non-English text?
Yes — uppercasing and lowercasing work on Unicode text, including accented Latin letters and other scripts that have case.
What is the difference between kebab-case and snake_case?
kebab-case joins words with hyphens and is the convention for URLs; snake_case uses underscores and is common in Python, databases and file names.
When is UPPER CASE appropriate?
For acronyms and short labels. Whole sentences in capitals are harder to read and are perceived as shouting, so avoid them in body text.

Related tools

Word Counter Count words, characters, sentences and paragraphs in your text. Text Sorter Sort lines alphabetically, by length, numerically, or shuffle them. Text Cleaner Tidy up messy text — strip tags, fix spacing and remove blank lines. Remove Duplicate Lines Delete repeated lines from a list and keep only unique entries.

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How to use Case Converter

Upload your image to the Case Converter canvas by dragging or clicking. Configure settings such as quality, dimensions, or filter options as needed, then start processing. The output renders in the same tab and can be saved directly.

Practical benefits

Frequently asked questions

Is this tool free to use?
Yes. Case Converter is fully free with no account or subscription required.
Does it upload my files?
No. All processing occurs locally within your browser session.
Can I use this for professional projects?
Yes, the tool is designed for both casual and professional use. Always verify critical outputs.