Render Dynamic Image API

Playground

Try endpoints and copy signed URL patterns

Full examples, endpoint references, and live test links for campaign integrations.

Playground preview

Endpoint Examples

Signed URL references and live outputs

Voucher Generator

Create branded voucher images with dynamic text placement and styling.

https://render.mattbayliss.co.uk/voucher?vouchercode=WINTER2026&x=32&y=12&box_width=248&client_id=YOUR_CLIENT_ID&ts=TIMESTAMP&sig=SIGNATURE
Voucher example
Countdown example

Countdown GIF

Create animated countdown timers for campaigns and launch moments.

https://render.mattbayliss.co.uk/countdown?end=2026-12-31T23:59:59Z&client_id=YOUR_CLIENT_ID&ts=TIMESTAMP&sig=SIGNATURE

Weather Card

Render a 3-day weather forecast card by location and start date.

https://render.mattbayliss.co.uk/weather?date=YYYY-MM-DD&location=London&unit=c&theme=2EA8FF&client_id=YOUR_CLIENT_ID&ts=TIMESTAMP&sig=SIGNATURE
Weather example

Calendar Links

Generate Google, Outlook, and ICS links with one signed endpoint.

https://render.mattbayliss.co.uk/calendar?type=google&title=Movie%20Night&start=START_DATE&end=END_DATE&timezone=Europe/London&location=London&summary=Bring%20snacks&url=https%3A%2F%2Fexample.com&client_id=YOUR_CLIENT_ID&ts=TIMESTAMP&sig=SIGNATURE

Cross-platform calendar actions

Use one endpoint and switch provider type for email CTA compatibility.

Image Composer

Overlay multiple text blocks onto a background with full style control.

https://render.mattbayliss.co.uk/image?bg_url=https://example.com/bg.jpg&blocks=[...]&client_id=YOUR_CLIENT_ID&ts=TIMESTAMP&sig=SIGNATURE
Image composer example