Free Slack preview tool

See how your page looks on Slack

Enter a public URL to check the image, title, and description Slack can show when someone shares your link.

No account needed Real page metadata Slack preview layout

Preview your page on Slack

See the image and text Slack can use when someone shares your page.

Query parameters are ignored unless you’re signed in.

Public pages only

We’ll read the page’s link-preview tags and image. Some sites may block automated checks.

Check the important details

Confirm the image, headline, summary, and link before you publish or promote a page.

See the Slack layout

Check your social card in a familiar Slack layout before you share it.

Find the tags behind the preview

Open the full report after a preview to see what the page provides and what may be missing.

Beyond previewing

Create Slack images that stay in sync with every page

Give each page one stable image URL. HCTI reads its metadata, captures the right content or fills a template, and serves the matching preview for Slack.

Explore Slack OG images

One URL for each page

<meta property="og:image" content="https://hcti.io/v1/og/YOUR_DOMAIN_ID/articles/my-post">
  • Capture a page or use a template
  • Refresh from page metadata
  • Optimize for Slack