Free · no signupLink preview tools
Find out what a link will look like before you post it, and why it looks wrong when it does. Every tool here reads the page live, so you see what a crawler sees right now.
Open Graph checker
Paste any URL to see every og: and twitter: tag a crawler reads, graded against what each platform truncates at, with the image downloaded to confirm it is reachable and measure its real dimensions. Renders the card on six platforms.
One platform at a time
Same inspection, opened on the card you care about, with that platform's own quirks and cache behaviour written out.
LinkedIn preview checker
Paste a URL to see the exact card LinkedIn will render, check the og: tags it reads, and find out why the preview is wrong. Free, instant, no signup.
Twitter Card validator
X removed the preview from its own Card Validator and never replaced it. Paste a URL to see the card X will render, plus every twitter: and og: tag it reads.
Facebook link preview checker
Paste a URL to see the card Facebook will render and every og: tag its crawler reads. Find out why the image, title, or description is wrong. Free, no signup.
Discord embed preview
Paste a URL to see the embed Discord will render, including the full description other platforms truncate. Check og: tags and theme-color. Free, no signup.
When the tags aren't yours to fix
Diagnosing it is only useful if you can change it.
Every tool above tells you what is wrong. That solves nothing when the broken page belongs to a partner, an affiliate network, or a publisher. Prelinq gives you a link that carries the title, description, and image you choose and forwards visitors to the original page, so the preview becomes yours to set and yours to change later.