Comparison
OGKit vs screenshot APIs
OGKit is a screenshot API alternative when the image you need is a clean Open Graph card, not a screenshot of a whole webpage.
Screenshot APIs are powerful for capturing existing pages. OGKit is purpose-built for fast, branded social preview images that fit Open Graph and Twitter card dimensions.
Why screenshots make mediocre og:image defaults
Pages include nav, cookie banners, and responsive breakpoints. A 1200×630 crop often cuts the wrong region. Template fields (title, subtitle, logo) stay readable at thumbnail size.
Hybrid pattern
- Use OGKit for og:image / twitter:image
- Use a screenshot API for gallery thumbnails or QA
- Use /api/og/auto when you want metadata-driven cards from an existing URL without a full-page raster
Quick comparison
| Question | OGKit | Alternative |
|---|---|---|
| Rendering target | Designed 1200x630 social card. | Viewport screenshot of a webpage or HTML document. |
| Runtime cost | Template render without driving a full browser. | Often requires browser automation and page load timing. |
| Reliability | Controlled fields and templates reduce layout drift. | Depends on page CSS, assets, cookies, load timing, and viewport. |
| Use in metadata | Direct `og:image` URL for pages and docs. | Usually better for visual regression, website thumbnails, or receipts. |
| Cold start | Template render path. | Browser boot + network + fonts on the page. |
Choose OGKit if
- You want social cards, not page screenshots.
- You need stable previews for Slack, LinkedIn, X, Discord, and iMessage.
- You want images generated from title, author, logo, product, or changelog fields.
Choose the alternative if
- You need to capture the actual page exactly as rendered.
- You are building website thumbnails or visual QA tools.
- You need arbitrary HTML rendering beyond OG card templates.
Example
<meta property="og:image" content="https://www.webmorp.art/api/og/brand?key=KEY&title=Acme+Launch&tagline=Ship+faster" />
<meta name="twitter:image" content="https://www.webmorp.art/api/og/brand?key=KEY&title=Acme+Launch&tagline=Ship+faster" />Frequently asked questions
Is /api/og/auto a screenshot?
No. It fetches HTML metadata and renders a template card — it does not rasterize the page.
Which is faster for unfurls?
Template APIs are typically faster and more cache-friendly than cold browser screenshots.
Related pages
OGKit turns one HTTPS URL into a 1200×630 Open Graph image. Read the API reference, deep guides, the Open Graph SEO guide, try the Playground, or sign in to create API keys.