When you'd use this
Right before you publish a blog post, landing page, or newsletter — to see how the link card will render when shared on KakaoTalk, X, Slack, and the rest. Especially useful for unpublished staging URLs, internal pages, or localhost where external tools can't reach.
Two input modes
- Fields mode — Type og:title, og:description, og:image, og:url directly. Useful when you're still drafting the meta tags and want to test combinations.
- Paste HTML mode — Paste your head's meta tags (or the entire page HTML) and og:, twitter:, and standard tags are extracted automatically.
Seven platform previews at once
KakaoTalk · X / Twitter · Facebook · LinkedIn · Discord · Slack · iMessage. Each platform uses different card shapes, title lengths, and image aspect ratios.
- KakaoTalk — Square thumbnail + short title. A large share of Korean traffic comes from KakaoTalk; most global tools skip this format.
- X (formerly Twitter) — With
twitter:card="summary_large_image", a 1.91:1 large-image card. Titles around 70 characters. - Facebook · LinkedIn — 1.91:1 image with a meta strip below.
- Discord · Slack — Rich embed style with a left color bar.
- iMessage — Rounded card with a large image plus title + host.
Your URL is never fetched
Tools like opengraph.xyz or share-preview.com fetch the URL you submit and parse it server-side. That doesn't work for unpublished URLs, intranet pages, or localhost. Here the page is never fetched — you paste meta tags or fill fields directly.
The og:image URL is loaded by your browser to render the preview (no relay). Public or CORS-permitted images render in the card; private images show a "No image" placeholder.
When this isn't the right tool
- Verifying an already-published URL's meta — opengraph.xyz is easier (paste URL, it fetches automatically).
- Compressing the image — this tool only previews. To shrink the file, use image-compress or image-resize.
- Invalidating the social platform's cache — Facebook / KakaoTalk debuggers handle cache busting separately. This tool is for the pre-publish preview only.
Your URL is never fetched
Most OG preview tools fetch the URL you submit and parse it server-side — unfit for unpublished URLs, internal pages, or localhost. This one only renders mockups from the meta tags you paste or fields you fill in. og:image URLs are loaded directly by your browser for the preview (never via a relay).