A free Open Graph previewer: paste a URL and see the card WhatsApp, X, LinkedIn, Slack, Discord and Instagram will actually draw, plus an audit of the tags behind it. It reads localhost straight off your machine, so a broken share card gets fixed before the page is ever deployed. Free, open source, no account.
What it’s for, in plain terms
A link looks fine until someone shares it and the preview is blank, cropped, or shows last month's title. LinkPeek renders the real card each app will draw, before you post.
See the WhatsApp, X, LinkedIn, Slack, Discord and Instagram card exactly as those apps will draw it, rather than a list of tags you have to imagine into a preview.
It reads localhost straight off your machine, so you can fix a broken share card while you're still building, without a tunnel or a throwaway preview deploy.
The audit names it: a truncated title, a missing image, the wrong dimensions, and what to paste instead.
Getting the best out of it
- Check before the post, not afterOnce a link has been shared, caches hold the old card for a while. Fixing it early is much cheaper than fixing it live.
- Test the surface you'll actually post toThere's a separate checker per platform because they don't agree with each other. WhatsApp is the one that most often surprises people.
- It's free and open sourceUnlimited scans, no sign-up, and the source is on GitHub if you want to see how it reads your tags.
What it does
WhatsApp, X, LinkedIn, Slack, Discord and Instagram, drawn the way each app draws them.
Point it at http://localhost:3000 and it reads the tags. No ngrok, no throwaway preview deploy.
Truncated titles, a missing og:image, wrong dimensions: it says what's broken and what to paste instead.
Catch a dead share card while you're still building, not under the launch post.
Separate tools for WhatsApp, LinkedIn, X cards, Slack, and a bulk URL run.
Unlimited scans, no sign-up, and the whole thing is on GitHub.
Made by
Kedar Deshmukh
Independent maker · built LinkPeek solo
Kedar built LinkPeek solo: the previewer renders the real WhatsApp, LinkedIn and X cards, and reads localhost so nobody has to deploy just to test a share image. It ships free, open source and in the open. If it saves you a broken launch post, say so.
We didn’t build this one. It’s here because we use it: no money changed hands, and every link above goes to Kedar, not to us.
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