OG Previewer
DeveloperPreview and generate Open Graph meta tags with live previews.
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About this tool
What is the OG Previewer?
When a URL is shared on Facebook, Twitter/X, LinkedIn, Slack, or iMessage, the platform fetches the page's Open Graph (OG) metadata and renders it as a rich link card — with a title, description, and image. Whether that card looks polished or broken depends entirely on whether the page has correct OG tags in its <head>.
The OG Previewer lets you fetch and inspect the OG metadata of any public URL, edit the values, and preview exactly how the link card will appear on different platforms — before sharing or deploying.
How to Use the OG Previewer
- Enter a URL and click Fetch. The tool requests the page's metadata and extracts all OG tags it finds.
- Review the parsed tags. The tool displays every
og:property found on the page — title, description, image, URL, type, site name, locale, and any others. - Edit any values. Override the fetched values to test how different titles, descriptions, or images would look — useful for planning copy before deploying changes.
- Check the platform previews. The tool renders how the link card will appear on Facebook, Twitter/X, and LinkedIn, accounting for each platform's different card dimensions and text truncation rules.
- Copy the generated HTML. The tool outputs the complete set of
<meta>tags ready to paste into your page's<head>.
Open Graph Tags Explained
og:title — the title displayed in the link card. This can and often should differ from the page's <title> tag — it should be written for sharing rather than for the browser tab.
og:description — the subtitle or body text in the link card. Keep it under 160 characters; most platforms truncate longer descriptions.
og:image — the image displayed in the card. This is the single most important OG tag for engagement — links with images get significantly higher click rates than those without. Recommended size: 1200×630 pixels.
og:url — the canonical URL of the page. Should match the actual page URL to avoid confusion when content is accessed through redirects or tracking parameters.
og:type — the type of content: website, article, video.movie, etc. Affects how some platforms display the card.
og:site_name — the name of the site, displayed separately from the title in some platform card layouts.
Twitter/X Card Tags
Twitter uses its own card tags alongside OG tags. The key ones:
twitter:card— card type:summary,summary_large_image,app, orplayertwitter:title— falls back toog:titleif not settwitter:description— falls back toog:descriptionif not settwitter:image— falls back toog:imageif not set
The previewer shows both OG and Twitter card rendering, including the difference between summary (small square image) and summary_large_image (full-width image) card formats.
Common Issues and Fixes
Image not showing — the image URL must be absolute (https://), publicly accessible, and ideally at least 200×200 pixels. Social crawlers don't follow redirects for images.
Stale cache — platforms cache OG data aggressively. After updating tags, use Facebook's Sharing Debugger or LinkedIn's Post Inspector to force a re-fetch.
Wrong title or description — if a platform is showing different text than your OG tags, it may be using the page <title> or <meta name="description"> as a fallback. Make sure OG tags are present and correctly formatted.
Privacy
URL fetching is done to retrieve public metadata only. No URLs entered or metadata retrieved are stored or logged.
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