Use case
Apps & SaaS
In-app share images, achievement cards, and notification graphics at scale
Many SaaS products and mobile apps need to generate images at runtime: a "share your stats" card, a personalised achievement graphic, a weekly summary image for email. Building an image generation pipeline in-house is costly and slow to maintain. SwarmGen provides the infrastructure via a simple API — your app sends merge field data and gets back a rendered image URL, typically in under a second.
What you can automate
User share cards
When a user hits a milestone — a streak, a goal, a personal best — generate a branded share card populated with their stats. Give them a one-tap share button and watch organic growth follow.
Personalised email visuals
Include a rendered image in weekly digest emails — a user's activity chart, top posts, or account summary — rendered server-side from live data before the email is dispatched.
PDF report generation
Use SwarmGen to render print-quality PDF reports from HTML templates. Useful for invoices, statements, certificates, or any exportable document your users expect.
Example merge fields
A typical SwarmGen template for this use case uses the following merge fields. Add them to your HTML as {{fieldName}} and they are replaced with real values at render time.
{
"user_name": "Jordan Clarke",
"plan": "Growth",
"renders_this_month": "1,240",
"credits_remaining": "760",
"joined": "January 2024",
"avatar": "https://cdn.example.com/avatars/jordan.png"
}Call the SwarmGen API server-side from your backend — Node.js, Python, Ruby, Go — or from a serverless function. Pass user data as merge fields and embed the returned URL in your app response or email payload.
Start generating images for apps & saas
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