100 free API calls/month — no credit card

Image Generation API

Create images from templates with a single API call. Design once in the editor, then generate thousands of variations programmatically. One endpoint. Instant response. No webhooks.

How the Image Generation API Works

Design a template

Use the drag-and-drop editor to create your image layout. Mark text, images, and colors as editable fields.

Send data via API

POST your data as JSON to a single endpoint. Only send the fields you want to change.

Get your image

The API returns a finished image (PNG, JPEG, or WebP) in under 2 seconds. No webhooks, no polling.

Example API call

curl -X POST 'https://render.imejis.io/v1/YOUR_TEMPLATE_ID' \
  -H 'dma-api-key: YOUR_API_KEY' \
  -H 'Content-Type: application/json' \
  -d '{
    "headline": { "text": "Summer Sale" },
    "price": { "text": "$29.99" },
    "product_image": { "image": "https://example.com/shoe.jpg" }
  }'

What You Can Build with an Image API

Social Media at Scale

Generate hundreds of branded social posts from a spreadsheet. Same template, different data, every time.

E-commerce Product Images

Auto-generate product images with price tags, sale badges, and branding from your catalog data.

Dynamic OG Images

Create unique Open Graph images for every page on your site. Better social sharing, zero manual work.

Personalized Emails

Generate header images personalized with each recipient's name, company, or product recommendations.

Why Developers Choose Imejis.io

One API endpoint, instant response

No webhooks or polling needed

PNG, JPEG, and WebP output

Drag-and-drop template editor

Built-in stock photos (Unsplash)

Unlimited templates on every plan

Public links for non-technical users

Zapier, Make.com, n8n integrations