Link Previewer for Social Media
Planning & Utilities
Link Previewer for Social Media — a fast, free creator utility that runs in your browser. No signup, no install, and nothing you enter is stored.
Link Previewer
See exactly how your URL appears when shared on social media.
How social link previews actually work
When you paste a URL into a post, the platform doesn't read your page; it reads a handful of hidden meta tags in your HTML head. Open Graph tags (og:title, og:description, og:image) drive Facebook, LinkedIn and most others, while X reads its own twitter:card tags first and falls back to Open Graph. A previewer pulls those exact tags and renders the card a scraper would build. The thing most people miss: platforms cache aggressively, so a fix you make today often won't show until you force a re-scrape through the platform's own debugger.
Link preview tips
- Set og:image to at least 1200x630 pixels; smaller images often render as a tiny thumbnail instead of a full card.
- X needs twitter:card set to summary_large_image for the big image; without it you get the cramped square-thumbnail layout.
- Keep og:title under about 60 characters and og:description near 110, since platforms truncate the rest with an ellipsis.
- Previewers show cached data, so always confirm changes in the platform's own debugger, which forces a fresh scrape of your tags.
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Link Previewer for Social Media — common questions
Latest questions readers ask us about this topic.
Why does my link preview show the wrong image or old text?
Platforms cache scraped Open Graph data for days or weeks. After updating your meta tags, run the URL through the platform's official debugger or sharing tool to force a re-scrape and refresh the cached preview.
What meta tags control a social media link preview?
Open Graph tags do most of the work: og:title, og:description, og:image and og:url. X also reads twitter:card, twitter:title and twitter:image, falling back to Open Graph when those Twitter-specific tags are absent from the page head.
What image size should I use for link previews?
Use 1200x630 pixels, a 1.91:1 ratio, for the large card that Facebook, LinkedIn and X share. Keep the file under roughly 5MB and avoid tiny text, since the image is often scaled down in feeds.
Related questions
The sub-questions readers ask next — answered, with where to go.
Specificity and tension. A scroll-stopping opener promises a concrete payoff ('the 3-word edit that doubled my reply rate') or opens a loop the reader needs closed — not a vague 'let's talk about engagement'. Front-load it: on most feeds only the first line shows before a cut-off, so the hook has to do its work there. Test several angles for the same post; the winner is rarely the one you'd have guessed.
Style your opening lineMatch the length to the job, then check it against the limit. Instagram captions can run long for storytelling but the hook must land in the first ~125 characters before 'more'; X/Twitter rewards tight, standalone lines; LinkedIn truncates around two lines. TikTok and Reels captions are short by nature. The reliable move is to draft freely, then trim against a live counter so nothing important gets cut.
Check the limit liveFewer, and more relevant, than the old advice. The era of 30 generic tags is over — most platforms now reward a small set (roughly 3–8) that genuinely describe the post, mixing one or two broad tags with several specific, lower-competition ones. Stuffing tags reads as spammy and can suppress reach. Put them where they don't interrupt the read: end of the caption or first comment.
Read the content hubTreat the bio as a one-line pitch, not a résumé. Open with who you help and the outcome they get, add a single proof point, and close with a reason to follow or a clear next step. Keep it skimmable, lead with the words people would search, and reserve any styled text for one emphasised phrase. Links and @mentions stay plain so they stay clickable.
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