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Case Convert for Social Media Copywriters | Rune
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Case Convert for Social Media Copywriters | Rune

Learn how social media copywriters use case conversion to style captions, hashtags, and posts for maximum engagement.

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2 min read

Social media copywriting is an art of constraints. You have limited characters, short attention spans, and fierce competition. Every formatting choice—including case—affects how your content performs. Here's how case conversion helps social media professionals.

Why Case Matters on Social Media

Readability

Proper capitalization makes captions easier to scan. All lowercase can look lazy; all caps feels like shouting.

Brand Voice

Some brands use all lowercase for a casual vibe; others use Title Case for authority. Consistency builds recognition.

Hashtag Visibility

#ThisIsMoreReadable than #thisismoredifficulttoread. Case in hashtags isn't functional but improves scanability.

Platform Norms

Different platforms have different norms. Instagram is casual; LinkedIn is professional.

Case Strategies by Platform

Platform Typical Style Example
Instagram Casual, lowercase/mixed "just launched something cool 🚀"
LinkedIn Professional, Sentence case "Excited to announce our new product launch."
Twitter/X Mixed, punchy "BIG NEWS: we just shipped 🔥"
TikTok Very casual, all lowercase "when the algorithm finally picks you up"
Facebook Conversational, Sentence case "We have some exciting news to share!"

Formatting Hashtags

Hashtags ignore case functionally (#running = #Running), but case affects readability:

  • Bad: #newyearsale2024
  • Good: #NewYearSale2024

Use Title Case or PascalCase for multi-word hashtags.

Using Case Converter for Social Content

  1. Draft your caption in any format.
  2. Paste into Rune's Case Converter.
  3. Try different formats:
    • Sentence case for professional platforms.
    • lowercase for casual vibes.
    • Title Case for headlines/hashtags.
  4. Copy your preferred version.

Case for CTAs (Calls to Action)

CTAs need to stand out. Options:

  • Shop Now (Title Case) – Clean, professional.
  • SHOP NOW (Uppercase) – Urgent, attention-grabbing.
  • shop now (lowercase) – Casual, subtle.

Match your CTA case to your brand voice.

A/B Testing Case

Case can affect click-through rates. Test:

  • "Get your free guide" vs "GET YOUR FREE GUIDE"
  • "Learn more" vs "Learn More"

Measure which performs better for your audience.

Conclusion

Case formatting is a subtle but powerful lever for social media copywriters. Use Rune's Case Converter to quickly test formats and nail your brand voice.

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