What are Open Graph meta tags?

Open Graph (OG) meta tags are HTML elements placed in the section of a web page that control how content appears when shared on social media platforms like Facebook, Twitter/X, and LinkedIn. Key tags include og:title (the headline), og:description (a short summary), og:image (the preview image), og:url (the canonical URL), and og:site_name (the website name). Without OG tags, platforms guess what to display, often resulting in missing images or incorrect titles.

How does this OG preview tool work?

Enter your Open Graph meta tag values — title, description, image URL, site URL, and site name — into the form fields. The tool instantly renders live preview cards showing exactly how your content will appear when shared on Facebook, Twitter/X, and LinkedIn. You can also generate copy-paste HTML meta tag code to add to your website's section. All processing happens in your browser — no data is sent to any server.

Does it show previews for all platforms?

Yes. The tool provides accurate preview cards for three major social platforms: Facebook (which uses the standard Open Graph protocol), Twitter/X (which supports both Twitter Cards and OG tags as a fallback), and LinkedIn (which also reads Open Graph tags). Each preview is styled to closely match the actual appearance on each platform, including image aspect ratios, text truncation, and typography.

Can I enter a URL to fetch OG tags automatically?

This tool uses manual input rather than URL fetching. Because CoderDesign is a static site, it cannot make server-side requests to arbitrary URLs. Manual input gives you full control: you can test tags before deploying your page, preview changes without publishing, and experiment with different titles, descriptions, and images instantly. For fetching existing tags from a live URL, you can use browser developer tools or server-based OG debuggers.

What is the ideal og:image size?

The ideal og:image size is 1200×630 pixels for Facebook and LinkedIn, and 1200×600 pixels for Twitter summary_large_image cards. Use a minimum of 600×315 pixels for Facebook. Images should be in JPEG or PNG format and under 5 MB. Always use an absolute URL (starting with https://) for the og:image tag. If your image is too small, platforms may not display it, and if the aspect ratio is wrong, it will be cropped automatically.

Yes, the OG Preview Tool is completely free with no limitations. There are no hidden charges, no premium tiers, and no sign-up required. You can preview and generate meta tags as many times as you need. CoderDesign provides this tool as a free resource for web developers, marketers, SEO professionals, and anyone who wants to optimize their social media presence.

Absolutely. All processing happens entirely in your browser using JavaScript — nothing is sent to any server. The titles, descriptions, image URLs, and other information you enter are never stored, logged, or shared with any third party. Your data stays completely local to your browser session and is lost when you close the tab.

What is a Twitter Card?

A Twitter Card is a set of meta tags (twitter:card, twitter:title, twitter:description, twitter:image) that control how a link appears when shared on Twitter/X. There are two main types: 'summary' shows a small square image on the left with text on the right, and 'summary_large_image' shows a large image on top with text below. If Twitter Card tags are not present, Twitter falls back to reading Open Graph tags instead.

Free OG Preview Tool – Preview Social Media Meta Tags

See exactly how your website will look when shared on Facebook, Twitter/X, and LinkedIn. Enter your Open Graph meta tags and get instant live previews — optimize your social media presence for maximum click-through rates and SEO impact. Free, private, no login required.

100% PrivateReal-TimeAll PlatformsNo Sign-Up

Enter Open Graph Information

og:title (recommended: under 60 characters)

og:description (recommended: under 155 characters)

og:image (absolute URL, 1200×630 recommended)

og:url

og:site_name

Twitter Card Type

summary_large_imagesummary

Twitter-Specific Overrides (optional — falls back to OG values)

twitter:title

twitter:description

Live Preview

Facebook Share Preview

example.com

Page Title

Page description will appear here.

Quick Tips

Title: Keep under 60 characters to avoid truncation on most platforms.
Description: Aim for 155 characters or fewer for consistent display.
Image: Use 1200×630px (Facebook/LinkedIn) or 1200×600px (Twitter large card).
URL: Always use absolute URLs with https:// for images.

How to Preview Open Graph Tags

Follow these four simple steps to preview your social media meta tags and generate copy-paste HTML code. No technical expertise required — just fill in the fields and see the results.

Enter Your OG Information

Fill in the form with your og:title, og:description, og:image URL, og:url, and og:site_name. These core Open Graph tags control how your link appears when shared on social media platforms.

Switch Between Platforms

Use the Facebook, Twitter/X, and LinkedIn tabs to see how your content renders on each platform. Each has different styling, image aspect ratios, and text truncation rules.

Fine-Tune Your Content

Adjust your title length (keep under 60 characters), description (under 155 characters), and image URL. Watch the live preview update in real-time to perfect your social media presence.

Copy Meta Tags

Click 'Generate Meta Tags' to produce the HTML code for both Open Graph and Twitter Card meta tags. Click 'Copy Code' and paste them into the <head> section of your web page.

Why Use Our Free OG Preview Tool?

A fast, private, and feature-rich Open Graph previewer built by professional developers at CoderDesign Toronto. Here is what makes it stand out.

Live Social Previews

See exactly how your link will appear when shared on Facebook, Twitter/X, and LinkedIn. Live preview cards update in real-time as you type — no need to click a button or wait for results.

Meta Tag Generator

Generate copy-paste HTML meta tag code for both Open Graph and Twitter Card tags. One click copies the complete code to your clipboard, ready to drop into your site's <head> section.

100% Private

All processing happens locally in your browser using JavaScript. Your titles, descriptions, image URLs, and other data are never sent to any server, stored, or shared with any third party.

Real-Time Updates

The preview cards update instantly as you type — no delays, no loading spinners, and no submit button needed. See every character change reflected immediately in the live preview cards.

All Major Platforms

Preview your content across all three major social platforms: Facebook (Open Graph), Twitter/X (Twitter Cards), and LinkedIn (Open Graph). Each platform renders shared links differently.

Image Preview

See exactly how your og:image will be cropped and displayed on each platform. Facebook uses a 1.91:1 ratio, Twitter large cards use a 2:1 ratio, and LinkedIn has its own sizing — check them all.

Common Use Cases

See how developers, marketers, and content creators use the OG Preview Tool to perfect their social media presence.

Optimize Social Shares

Preview exactly how your blog post, article, or landing page will look before you share it on social media. Catch truncated titles, missing images, and poorly formatted descriptions before your audience sees them.

SEO & Marketing

Ensure consistent branding across Facebook, Twitter/X, and LinkedIn. Marketing teams use OG previews to verify that campaigns display correctly on every platform, maintaining professional brand presence.

Web Development

Test and debug Open Graph meta tags during development without deploying. Enter your tags, see the preview, generate the HTML code, and paste it into your site — all before pushing to production.

Content Marketing

Perfect your blog post and article previews. Content marketers use this tool to craft compelling titles and descriptions that maximize click-through rates when content is shared on social platforms.

Brand Consistency

Verify that your brand name, logo image, and messaging display correctly across all platforms. Inconsistent previews confuse audiences — use this tool to ensure every share looks professional and on-brand.

Frequently Asked Questions

Everything you need to know about Open Graph tags, Twitter Cards, and social media meta tag previews. Can't find what you're looking for? Contact us.

Open Graph (OG) meta tags are HTML elements placed in the <head> section of a web page that control how content appears when shared on social media platforms like Facebook, Twitter/X, and LinkedIn. The core tags are og:title (the headline shown in the share card), og:description (a short summary), og:image (the preview image), og:url (the canonical URL), og:site_name (your website name), and og:type (usually "website" or "article"). Without proper OG tags, platforms guess what to display, often resulting in missing images, wrong titles, or generic descriptions that hurt click-through rates.

The ideal og:image size is 1200×630 pixels for Facebook and LinkedIn (1.91:1 aspect ratio), and 1200×600 pixels for Twitter summary_large_image cards (2:1 aspect ratio). Use a minimum of 600×315 pixels for Facebook — anything smaller may not be displayed. For Twitter summary cards (small square thumbnail), use 144×144 pixels minimum, ideally 400×400 pixels. Images should be JPEG or PNG format, under 5 MB in file size, and always referenced with an absolute URL starting with https://. If your image dimensions don't match the platform's expected ratio, it will be cropped automatically from the center.

For og:title, keep it under 60 characters to avoid truncation on most platforms. Facebook shows approximately 60–90 characters, but Twitter and LinkedIn cut off sooner. For og:description, aim for 155 characters or fewer — Facebook displays up to about 200 characters, but Twitter shows less. The og:site_name should be your brand name, typically 20–30 characters. These are recommendations, not hard limits — the text won't break, but it will be truncated with an ellipsis if too long, which looks less professional.

Twitter supports two main card types for standard websites. 'summary' displays a small square thumbnail image (144×144 minimum) on the left with the title, description, and domain on the right — good for articles and general content. 'summary_large_image' displays a large image (1200×600 recommended) spanning the full width of the card with text below — ideal for visual content, blog posts, and marketing pages. There are also 'player' cards for video/audio and 'app' cards for mobile applications, but those require additional approval from Twitter.

Open Graph and Twitter Card meta tags must be placed inside the <head> section of your HTML document, before the closing </head> tag. They should appear alongside your other meta tags like charset, viewport, and description. The order within <head> doesn't matter, but it's good practice to group all OG tags together followed by Twitter Card tags for readability. In modern frameworks like Next.js, React, or WordPress, you typically set these through the framework's metadata API rather than raw HTML — but the generated output still ends up in <head>.

Social platforms cache OG data aggressively. To force a refresh: for Facebook, use the Facebook Sharing Debugger (developers.facebook.com/tools/debug/) — paste your URL and click 'Scrape Again'. For Twitter, use the Twitter Card Validator (cards-dev.twitter.com/validator). For LinkedIn, use the LinkedIn Post Inspector (linkedin.com/post-inspector/). After updating your meta tags, you must use these platform-specific tools to clear the cache. Simply re-sharing the link won't fetch new data — the old cached preview will persist until you manually purge it.

The most common mistakes are: (1) using relative image URLs instead of absolute URLs starting with https://, (2) missing og:image entirely so platforms show no preview image, (3) titles that are too long and get truncated mid-word, (4) not setting og:type (defaults vary by platform), (5) using images that are too small (under 200×200 pixels) or wrong aspect ratio, (6) forgetting Twitter Card tags (twitter:card is required for Twitter to render cards), (7) duplicate or conflicting OG tags, and (8) not testing on all platforms since each renders differently.

LinkedIn primarily reads standard Open Graph meta tags (og:title, og:description, og:image, og:url) to render link previews. LinkedIn does not have its own proprietary meta tag system like Twitter Cards. However, LinkedIn has specific requirements: images should be at least 1200×627 pixels for the best display, og:image must use an absolute HTTPS URL, and the page must be publicly accessible (LinkedIn's crawler can't access password-protected pages). LinkedIn caches previews for about 7 days, and you can force a refresh using the LinkedIn Post Inspector tool.

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