title: "Create OG Images Free — Open Graph Image Generator Online" description: "Generate Open Graph images for social media sharing. Customizable gradients, text, and backgrounds. Free OG image generator with no signup." date: "2026-02-05" keywords: ["OG image generator", "open graph image", "create OG images free", "social media preview image", "Twitter card image"] relatedTools: ["og-image", "social-resize", "story-template"]
Create OG Images Free — Open Graph Image Generator Online
When you share a link on Twitter, LinkedIn, Facebook, or Slack, the preview image that appears is called an Open Graph (OG) image. A well-designed OG image can dramatically increase click-through rates — yet most developers skip this step because creating them is tedious.
theimgapp's OG Image Generator lets you create beautiful OG images in seconds with customizable gradients, text, and backgrounds.
What Are Open Graph Images?
Open Graph is a protocol created by Facebook that controls how URLs are displayed when shared on social platforms. The og:image meta tag specifies the preview image shown alongside your link.
Without an OG image, shared links appear as plain text or with auto-generated (often ugly) previews. With a custom OG image, your content stands out in feeds and messaging apps.
Recommended OG Image Sizes
| Platform | Recommended Size | Aspect Ratio | |----------|-----------------|--------------| | Twitter | 1200x628 | ~1.91:1 | | Facebook | 1200x630 | ~1.91:1 | | LinkedIn | 1200x627 | ~1.91:1 | | Discord | 1200x630 | ~1.91:1 | | Slack | 1200x630 | ~1.91:1 |
The universal standard is 1200x630 pixels — this works well across all platforms. theimgapp's OG generator uses this size by default.
How to Create an OG Image
- Open the OG Image Generator
- Enter your title and optional subtitle text
- Choose a gradient background or upload a custom background image
- Preview your OG image in real-time
- Click Generate and download
Customization Options
- Gradient presets: Choose from curated gradient combinations
- Custom colors: Pick your own gradient start and end colors
- Background image: Upload a photo as the background
- Text overlay: Add a title and subtitle with automatic sizing
- Brand colors: Match your OG images to your brand palette
Adding OG Images to Your Website
Add these meta tags to your HTML <head>:
<meta property="og:image" content="https://yoursite.com/og-image.png">
<meta property="og:image:width" content="1200">
<meta property="og:image:height" content="630">
<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:image" content="https://yoursite.com/og-image.png">
For Next.js projects, use the metadata export:
export const metadata = {
openGraph: {
images: [{ url: '/og-image.png', width: 1200, height: 630 }],
},
};
Tips for Effective OG Images
- Keep text large and readable: OG images are often displayed small — use big, bold text
- High contrast: Ensure text is readable against the background
- Consistent branding: Use the same style across all your OG images for brand recognition
- Avoid text near edges: Some platforms crop slightly, so keep important content centered
- Test before publishing: Use the Facebook Sharing Debugger or Twitter Card Validator to preview
Need Images for Other Social Platforms?
- Social Resize — Resize images to Instagram, Twitter, Facebook, and LinkedIn dimensions
- Story Template — Create Instagram and Facebook story templates
FAQ
What's the best OG image size?
1200x630 pixels works across all major platforms.
Do I need a different image for Twitter?
No, Twitter supports the same 1200x630 size. Just make sure you use summary_large_image as the Twitter card type.
Can I use a photo as the OG image background?
Yes. Upload any image and the generator will use it as the background with your text overlay.
How do I test my OG image?
After deploying, use Facebook's Sharing Debugger or Twitter's Card Validator to preview how your link will appear when shared.