Writing Tips: Proper Case Formatting | Rune

Proper case formatting is one of those subtle skills that separates amateur writing from professional content. Understanding when to use which case format—and applying it consistently—elevates your work.

The Basics of Case Formatting

UPPERCASE

When to use:

• Acronyms: NASA, FBI, HTML
• Emphasis (sparingly): "DO NOT ENTER"
• Headers in formal documents
• Legal notices

When to avoid:

• Entire paragraphs (reads as shouting)
• Body text
• Casual communication

lowercase

When to use:

• Standard body text (after first word)
• URLs and file names (often)
• Informal writing

When to avoid:

• Proper nouns
• Sentence beginnings
• Professional headings

Title Case

When to use:

• Book and chapter titles
• Newspaper headlines
• Formal document headings
• Song and movie titles

When to avoid:

• Web content (often)
• Casual contexts
• Very long headings (becomes hard to read)

Sentence case

When to use:

• Blog titles (modern preference)
• UX/UI text
• Email subject lines
• Casual headings

When to avoid:

• Formal academic papers
• Traditional publications

Common Capitalization Mistakes

Mistake 1: Inconsistent Headings

Bad:
- How to Get Started (Title Case)
- Setting up your account (Sentence case)
- ADVANCED FEATURES (UPPERCASE)

Good:
- How to get started
- Setting up your account
- Advanced features

Mistake 2: Random Capitalization

Wrong: "Our Company offers Premium Services to Valued Clients."

Right: "Our company offers premium services to valued clients."

Mistake 3: Capitalizing Common Nouns

Wrong: "The Customer should contact Support."

Right: "The customer should contact support."

Quick Reference Guide

Element	Recommended Format
Book title	Title Case
Blog heading	Sentence case
Button text	Sentence case
Error message	Sentence case
Navigation menu	Title Case or Sentence case (be consistent)
Product name	Brand-specific (follow guidelines)
Email subject	Sentence case
Tweet	Sentence case

Using a Case Converter

When you're unsure or need to reformat existing text:

1. Paste your text into Rune's Case Converter.
2. Review the options.
3. Pick the format that fits your context.
4. Copy and use.

Conclusion

Case formatting is a small detail with a big impact. By understanding the rules and applying them consistently, you make your writing clearer and more professional. Use Rune's Case Converter to format text correctly every time.