Developer Tools

Open Graph Preview

See how your link will look when shared on Facebook, Twitter/X, LinkedIn, and Slack/Discord.

We fetch the page on our server and read its Open Graph / Twitter Card tags — most sites block this from directly happening in your browser.

Preview

Facebook

No image

example.com

Your title will appear here

Your description will appear here

Twitter / X

No image

Your title will appear here

Your description will appear here

example.com

LinkedIn

No image

Your title will appear here

example.com

Slack / Discord

example.com

Your title will appear here

Your description will appear here

No image

Per-platform character limits

Each platform truncates differently — the previews above already account for this, but here’s the exact cutoff for each:

PlatformTitleDescription
Facebook60 characters155 characters
X (Twitter)70 characters200 characters
LinkedIn70 characters100 characters
Slack / Discord60 characters155 characters

The character counter in the Manual Entry form shows one generic count — these are the real per-platform numbers the previews above are actually using.

Meta tags

Enter a URL or fill in the manual fields to generate meta tags.

Why your link preview looks wrong

Social platforms cache Open Graph data the first time a link is shared — so if you fix your meta tags after someone already posted the link, the old preview can stick around for days or weeks depending on the platform. Facebook and LinkedIn both have live official tools to force a refresh after making changes; X does not. Testing here first, before you ever post the link publicly, avoids the caching problem entirely.

  • Facebook Sharing Debugger →
  • LinkedIn Post Inspector →
  • X doesn’t currently offer an official card-testing tool (its old validator was discontinued in 2022) — the most reliable way to check a card on X is to post the link in an actual tweet (a private/locked account works fine for testing).

Frequently asked questions

What’s the ideal size for an og:image?

1200×630 pixels, roughly a 1.91:1 ratio. This tool checks your image against that automatically — anything under 200×200 gets flagged as too small, and anything more than about 15% off the ideal ratio gets flagged as likely to crop oddly on some platforms.

Why does my title get cut off differently on LinkedIn than on Facebook?

Each platform sets its own truncation point — LinkedIn cuts titles at 70 characters and descriptions at just 100, while Facebook allows 60 and 155 respectively. See the table above for the full breakdown. This tool’s previews already truncate to the real number for each platform.

I fixed my meta tags, but the old preview still shows up when I share the link. Why?

Social platforms cache Open Graph data the first time a link is shared, so a fix made after that point won’t show up until the platform’s cache clears — which can take days. Facebook’s Sharing Debugger and LinkedIn’s Post Inspector (linked above) both have a “fetch again” / “scrape again” action to force a refresh. X doesn’t have an official equivalent — posting the link in a new tweet is the most reliable way to see a fresh card there.

Does this tool generate an og:image for me?

No — it previews and validates an image you already have (checking its size and aspect ratio), but it doesn’t create one. If you need to generate an image, you’d design it separately at roughly 1200×630 and then paste its URL in here to check it.

More from Developer Tools

View all →
HTML to CSV Converter Paste HTML or upload a file, pick the table you want, and download it as a clean CSV. Extract Table from URL Paste a link, and get the table on that page back as a clean, downloadable CSV. JSON Formatter Format, validate, and explore JSON — entirely in your browser.

Enjoyed this? Share it with a friend

Email