Use case
Marketing Agencies
Deliver branded creative at scale without the design bottleneck
Agencies are constantly asked to produce more creative with the same headcount. SwarmGen turns a single approved design into a production-ready template that your team — or your clients' data — can render in bulk. Onboard a new client, update the template once, and generate thousands of personalised assets without opening Photoshop.
What you can automate
Client-specific templates
Build a master template per client, locking in their brand colours, fonts, and logo. When a campaign launches, swap the copy and images via the API — the brand never drifts.
Bulk ad creative
Running Facebook or Google Ads? Generate a unique image for each product, audience segment, or A/B variant by iterating through a spreadsheet of merge field values and calling the render API once per row.
Automated performance reports
Build a weekly report card template and populate it from your analytics data — rendered as a PNG or PDF and emailed to clients automatically, no manual layout required.
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.
{
"client": "Bright & Co.",
"campaign": "Summer Sale 2025",
"headline": "50% off all outdoor furniture",
"cta": "Shop now",
"offer_ends": "31 Aug 2025",
"logo": "https://cdn.example.com/bright-co-logo.png"
}Pair SwarmGen with a Google Sheets automation in Zapier or Make: one row per variant, one render per row, images delivered to a shared Drive folder ready for upload.
Start generating images for marketing agencies
Create a free account, pick a template or build your own, and start rendering in minutes. No credit card required.
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