How to Share Code on LinkedIn: A Developer's Guide to Technical Carousels

As a developer, you have valuable knowledge to share. But LinkedIn’s text-based posts aren’t great for code. The formatting is limited, syntax highlighting is non-existent, and long code blocks just look like walls of text.

That’s where carousels come in. They let you present code beautifully, with proper syntax highlighting, step-by-step explanations, and visual appeal that stops the scroll.

Why Carousels Work for Technical Content

• Syntax Highlighting — Code is actually readable with proper colors
• Controlled Pacing — Break down complex concepts slide by slide
• Visual Context — Add explanations alongside code
• Higher Engagement — Carousels get 1.6x more reach and achieve 24.42% engagement rates (vs 6.67% for text posts)
• Mobile-Optimized — 51% of LinkedIn users are on mobile; carousels are easier to navigate than long code blocks

What Makes a Great Code Carousel

Start With the Problem

Don’t jump straight into code. Your first slide should explain what problem you’re solving or what concept you’re teaching. Give people context.

Keep Code Snippets Focused

Don’t show entire files. Highlight the specific lines that matter. Use comments or arrows to draw attention to key parts.

// ❌ Too much code
function Component() {
  const [count, setCount] = useState(0);
  const [name, setName] = useState('');
  const [items, setItems] = useState([]);
  // ... 50 more lines
}

// ✅ Focused on the concept
const [count, setCount] = useState(0);
//    ↑ current value  ↑ updater function

Explain Before and After

For each code snippet, have a slide before it explaining what you’re about to show, and optionally a slide after explaining what happened.

The rhythm:

1. Context slide → “Here’s how we handle…”
2. Code slide → The actual implementation
3. Explanation slide → “Notice how we…”

Use the Right Font Size

With over half of LinkedIn users on mobile, code readability is critical. If people have to squint, they’ll swipe away. Test your carousel on a phone before posting.

Add Your Branding

Include your name or handle on each slide. When people save and share your carousel (and they will), your name travels with it.

Popular Code Carousel Formats

1. Tutorial Style — Step-by-step guide to implementing something (highest saves)
2. Before/After — Show bad code vs. good code (drives discussion in comments)
3. Tips Collection — “5 JavaScript tricks you might not know” (great for reach)
4. Concept Explainer — Break down a complex topic visually (builds authority)
5. Comparison — Library A vs Library B (sparks debate and engagement)

Languages That Shine in Carousels

Some languages are particularly well-suited for carousel content:

• JavaScript / TypeScript — Universal appeal, lots of developers
• Python — Clean syntax, great for beginners
• React / JSX — Component-based code is visual
• SQL — Query explanations work great
• CSS — Visual results are satisfying

Code Carousel Checklist

Before you post, make sure you can answer “yes” to these:

• Is the first slide a hook, not code?
• Is each code snippet focused on one concept?
• Is the font large enough for mobile?
• Did you explain the “why” not just the “what”?
• Is your branding visible?
• Does the last slide have a CTA?

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Start Creating

Technical content on LinkedIn has massive potential. With 51% of users on mobile and carousel posts achieving 3.6x higher engagement than text posts, developers who master this format stand out.

The developers who consistently share valuable code content build incredible personal brands and attract opportunities. The data is clear: carousels work. Now it’s your turn to leverage them.