Dynamic OG Images for SaaS

Dynamic OG images for SaaS are per-page social previews generated automatically as your dashboard, docs, changelog, or user-facing routes are shared. FastOG renders each one on demand and caches it, so a SaaS can give every page a unique branded card with zero manual design work.

Why SaaS needs dynamic OG images

SaaS products have many shareable surfaces — product pages, docs pages, changelog entries, public user profiles, and achievement cards. Each one shared on X or LinkedIn benefits from its own card instead of a single logo fallback. Generating these by hand does not scale; generating them at render time does.

The core pattern

For every page you want a card for, sign a URL with the page's title (and any page-specific fields) at render time. FastOG renders the PNG on first fetch and Cloudflare caches it.

tsx

// Next.js — app/docs/[slug]/page.tsx
export function generateMetadata({ params }) {
    const doc = await getDoc(params.slug);
    return {
        openGraph: {
            images: [generateOgImageUrl({
                template: "default",     // or "devtool", "launch", "company"
                title: doc.title,
                subtitle: doc.excerpt,
                domain: "yoursaas.com",
            })],
        },
    };
}

Good SaaS use cases

Surface	Template ideas
Product / marketing pages	`company`, `hero`, `product`
Documentation pages	`default`, `devtool`
Changelog entries	`changelog`, `launch`
Public user / avatar cards	`testimonial`, `stats`, `image-right`
Pricing pages	`pricing`, `stats`

FAQ

Do I need a template per use case?

No. One template + the URL fields you pass is usually enough; a couple of templates cover the rest. All render at 1200×630.

How do I handle many pages without burning credits?

Identical URLs are edge-cached forever after the first render, so the same page shared 1,000 times costs 1 credit. Content changes just produce a new URL.

Can I brand cards with my SaaS identity?

Yes — set brand_name, brand_logo, bg_color, fonts, and patterns per URL. See the playground to preview templates live.

Try it free — no signup required

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