Why does Open Graph Preview matter?

A preview of your link's social card. A missing or wrong-sized og:image is the most common reason shares look broken.

What are common open graph preview mistakes?

Missing og:image, or one below the recommended ~1200x630.

🔗

100% free · no signupRuns in your browser

Open Graph Preview

Preview how your page looks when shared on social with og:title, og:description, og:image.

Best for: Use it before publishing or sharing, to check the title, description and image that will appear.

Complete guide

Input

Example Site

Your Page Title

A compelling description that entices people to click.

How it's calculated & sources

The Open Graph Preview uses the standard method for this calculation. It runs entirely in your browser, so your inputs are never uploaded. Last reviewed June 2026.

Free & no sign-up · runs entirely in your browser. Results are estimates for general information, not professional advice — verify important decisions with a qualified expert. Last reviewed June 2026.

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Complete guide

Quick answers

Short, sourced answers to the questions people (and AI assistants) ask most.

What is Open Graph Preview?: An Open Graph preview shows how your page will look when shared on Facebook, LinkedIn and other platforms that read OG tags.
Why does Open Graph Preview matter?: A preview of your link's social card. A missing or wrong-sized og:image is the most common reason shares look broken.
How is Open Graph Preview calculated?: You enter the og:title, og:description and og:image (or a URL's tags) and it renders a mock share card.
What are common open graph preview mistakes?: Missing og:image, or one below the recommended ~1200x630.
When should you use the Open Graph Preview?: Use it before publishing or sharing, to check the title, description and image that will appear.

What is the Open Graph Preview?

An Open Graph preview shows how your page will look when shared on Facebook, LinkedIn and other platforms that read OG tags.

How the Open Graph Preview works

You enter the og:title, og:description and og:image (or a URL's tags) and it renders a mock share card.

Common mistakes to avoid

Missing og:image, or one below the recommended ~1200x630.
Titles/descriptions too long and truncated.
Forgetting platforms cache tags - you may need to re-scrape.

Keywords: opengraph, og, social, preview.

Sources: Google Search Central

Reviewed by the Free Tools Galaxy editorial team · Updated June 2026 · Calculated privately in your browser.

Frequently asked questions

Is the Open Graph Preview free to use?+

Yes. Every tool on Free Tools Galaxy is 100% free, runs in your browser and requires no signup.

How accurate is the Open Graph Preview?+

Open Graph Preview uses the standard open graph preview formula in double-precision arithmetic, so the same inputs always produce the same result and you can verify any figure by hand. It is an educational estimate — real-world outcomes depend on your actual rates, rules and assumptions.

Do you store my inputs?+

No. The Open Graph Preview runs entirely in your browser. Nothing is uploaded or saved to a server.

Can I use the Open Graph Preview on mobile?+

Yes — the interface is fully responsive and works on phones, tablets and desktops.

What are common mistakes to avoid?+

The most frequent mistake is mixing units. Double-check your inputs use a single, consistent unit before clicking Calculate.

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Reddit post

Title: I built/used this free open graph preview — instant, no signup

Body: Preview how your page looks when shared on social with og:title, og:description, og:image. Try it: https://freetoolsgalaxy.com/tools/open-graph-preview

LinkedIn post

Open Graph Preview on Free Tools Galaxy — Preview how your page looks when shared on social with og:title, og:description, og:image. https://freetoolsgalaxy.com/tools/open-graph-preview

Medium intro

# Open Graph Preview — the free tool I keep coming back to

Preview how your page looks when shared on social with og:title, og:description, og:image.

Try it: https://freetoolsgalaxy.com/tools/open-graph-preview

Quora answer

The fastest way is to use a free in-browser open graph preview: https://freetoolsgalaxy.com/tools/open-graph-preview. Preview how your page looks when shared on social with og:title, og:description, og:image.

Embed this tool anywhere

Free embed code for blogs, docs and dashboards. Every embed sends a backlink home — helping you and the galaxy grow together.

HTML iframe

Drop into any site — auto-resizes to its content height, theme-aware.

<iframe src="https://freetoolsgalaxy.com/tools/open-graph-preview?embed=1" title="Open Graph Preview" loading="lazy"
  style="width:100%;height:600px;border:0;border-radius:16px;background:#0b1020"
  allow="clipboard-write"></iframe>
<script>window.addEventListener("message",function(e){if(e.data&&e.data.type==="ftg-embed-height"){document.querySelectorAll("iframe").forEach(function(f){if(f.contentWindow===e.source){f.style.height=e.data.height+"px";}});}});</script>
<p><a href="https://freetoolsgalaxy.com/tools/open-graph-preview" target="_blank" rel="noopener">Powered by Open Graph Preview on Free Tools Galaxy</a></p>

Responsive wrapper

Aspect-locked container — good for blog post bodies.

<div style="position:relative;padding-bottom:75%;height:0;overflow:hidden;border-radius:16px">
  <iframe src="https://freetoolsgalaxy.com/tools/open-graph-preview?embed=1" title="Open Graph Preview" loading="lazy"
    style="position:absolute;inset:0;width:100%;height:100%;border:0" allow="clipboard-write"></iframe>
</div>

WordPress / Markdown

Paste in a custom-HTML block or markdown file.

[Open Graph Preview — free online tool](https://freetoolsgalaxy.com/tools/open-graph-preview)

<iframe src="https://freetoolsgalaxy.com/tools/open-graph-preview?embed=1" width="100%" height="600" frameborder="0"></iframe>

Text link-back

Minimal credit link — best for sidebars and footers.

<a href="https://freetoolsgalaxy.com/tools/open-graph-preview" target="_blank" rel="noopener">Try the free Open Graph Preview</a>

Developer & SEO tools

Input

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Complete guide

Quick answers

What is the Open Graph Preview?

How the Open Graph Preview works

Common mistakes to avoid

Frequently asked questions

Explore more

Popular tools

Explore other categories

Smart Autopilot

Likely next step

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