code-to-image

Included with Lifetime

$97 forever

Generate beautiful code snippet images with syntax highlighting. Use when users want to share code as an image, create code screenshots for social media, documentation, or presentations. Produces crisp, syntax-highlighted code with customizable themes, window chrome, and professional styling.

Image & Video

What this skill does


# Code to Image API

Generate beautiful code snippet images with syntax highlighting via `html2png.dev`.

## How It Works

1. Write HTML with syntax-highlighted code (use Shiki or similar)
2. Style with Tailwind CSS or custom CSS
3. Send to `/api/convert` endpoint
4. Get a shareable image URL

## Endpoint

```
POST https://html2png.dev/api/convert
```

## Example

```bash
curl -X POST "https://html2png.dev/api/convert?width=800&deviceScaleFactor=2" \
  -H "Content-Type: text/html" \
  -d '<!DOCTYPE html>
<html>
<head>
  <script src="https://cdn.tailwindcss.com"></script>
  <link href="https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;700&display=swap" rel="stylesheet">
  <style>
    .shiki { background: transparent !important; }
    .line::before {
      content: attr(data-line);
      width: 2rem;
      margin-right: 1rem;
      display: inline-block;
      text-align: right;
      color: rgba(128,128,128,0.4);
    }
  </style>
</head>
<body class="p-12" style="background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);">
  <div class="bg-white rounded-xl shadow-2xl overflow-hidden">
    <div class="flex items-center gap-2 px-4 py-3 border-b border-gray-200">
      <div class="w-3 h-3 rounded-full bg-red-400"></div>
      <div class="w-3 h-3 rounded-full bg-yellow-400"></div>
      <div class="w-3 h-3 rounded-full bg-green-400"></div>
      <span class="ml-2 text-xs text-gray-500 font-mono">hello.js</span>
    </div>
    <pre class="p-6 font-mono text-sm leading-relaxed"><code class="language-javascript"><span style="color:#D73A49">function</span> <span style="color:#6F42C1">greet</span>(<span style="color:#24292E">name</span>) {
  <span style="color:#D73A49">return</span> <span style="color:#032F62">`Hello, ${name}!`</span>;
}

<span style="color:#6F42C1">console</span>.<span style="color:#6F42C1">log</span>(<span style="color:#6F42C1">greet</span>(<span style="color:#032F62">"World"</span>));</code></pre>
  </div>
</body>
</html>'
```

## Key Elements

**Syntax Highlighting:**

- Use Shiki (`shiki.style`) or highlight.js for token coloring
- Inline styles work best for standalone images

**Window Chrome:**

- Traffic light dots (red, yellow, green)
- Filename in title bar
- Rounded corners, shadows

**Typography:**

- JetBrains Mono or Fira Code for code
- Inter or system fonts for UI elements
- Line numbers optional

**Backgrounds:**

- Gradient backgrounds for the container
- White or dark code window
- Glassmorphism effects

## Shiki Integration

For server-side syntax highlighting:

```javascript
import { createHighlighter } from "shiki";

const highlighter = await createHighlighter({
  themes: ["github-light"],
  langs: ["javascript", "python", "rust"],
});

const html = highlighter.codeToHtml(code, {
  lang: "javascript",
  theme: "github-light",
});
```

## Tips

- Use `deviceScaleFactor=2` for crisp text
- Add `delay=500` if using web fonts
- Container width should match `width` param
- Use `omitBackground=true` for transparent PNGs

## Rate Limits

50 requests/hour per IP.

Files: 1

Size: 3.3 KB

Complexity: 8/100

Category: Image & Video

Source: https://github.com/html2png/skills/tree/main/code-to-image

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