About Case Modify

Case Modify is a free online text toolkit: case converters (uppercase, lowercase, title case, sentence case), Unicode stylers, code formatters, encoders, random generators, and unit converters. Every tool runs in your browser - no account required.

Who uses Case Modify

Students fix essay capitalization, bloggers format headlines, developers prettify JSON and test regex, marketers build UTM links, and teams share quick utilities without installing desktop software.

Privacy-first by design

For standard tools, your text and values stay on your device after the page loads. That makes Case Modify practical for drafts, proprietary snippets, and customer data samples you do not want uploaded to a remote formatter.

Editorial standards

Guides and examples are written to be practical, plain-language references. We review pages for clear intent, examples, internal links, and corrections when a tool behavior or style recommendation changes.

Useful starting points

• Case converters — uppercase, title case, sentence case, and more
• Code & data tools — JSON, CSS/SCSS, Markdown, Base64, binary
• Random generators — numbers, choices, UUIDs, strong passwords
• Unit converters — weight, pressure, density, power, and more
• Blog guides — capitalization rules, passwords, and formatting tips
• How Case Modify works
• Documentation
• Frequently asked questions

Popular tools

Title Case Converter · JSON Formatter · Strong Password Generator · Random Number Generator · Markdown Formatter · CSS Formatter

Contact & feedback

Have a tool idea or found a bug? Email contact@casemodify.com. We read suggestions for new converters, formatters, and guides that would help writers and developers.