These are real renders from the API with the example values in the table below. Switch the size above: the same template lays itself out for all 6 sizes — send size or sizes with the request.
Made for format: gif and mp4: each tile flips down in turn, the date rises in and the board ticks once more before the loop starts again. For launches, sales and conferences in posts, newsletters and Slack, where a GIF plays on its own. A still format (png, jpeg, webp) renders the finished board, so the same template also works as the og:image.
Fields
Every field is optional. Long text shrinks to fit instead of overflowing; an image field takes a public URL that we fetch on our side.
| Field | Type | Description | Example |
|---|---|---|---|
number |
text | The number on the tiles, up to 6 characters, e.g. 12. default: 10 | 12 |
unit |
text | What the number counts, e.g. days to go. default: days to go | days to go |
event |
text | Event or launch name above the board. | Frontend Summit 2026 |
date |
text | Date as you want it printed. | June 12–14 · Lisbon |
site |
text | Your domain or a short URL. | frontendsummit.io |
accent |
colour | Brand colour as hex, e.g. #6366f1. Drives buttons, highlights and the background glow. default: #22d3ee | #22d3ee |
theme |
dark | light | Colour scheme: dark or light. | — |
Render it with one request
Use the slug as template. The response holds the URL of the finished PNG; ?wait=true keeps the connection open until it is ready.
curl -X POST "https://shareglint.com/v1/images?wait=true" \
-H "Authorization: Bearer sk_live_YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{
"template": "animated-countdown",
"modifications": {
"number": "12",
"unit": "days to go",
"event": "Frontend Summit 2026",
"date": "June 12–14 · Lisbon",
"site": "frontendsummit.io"
}
}'Or paste a signed URL into og:image
For static sites, Webflow, Shopify and no-code tools: put the fields in the query string and sign it with your signing secret. The first request renders the image, every later one is a redirect to the cached file. How to compute the signature.
<meta property="og:image" content="https://shareglint.com/i/acc_YOUR_ACCOUNT_ID/animated-countdown.png?date=June%2012%E2%80%9314%20%C2%B7%20Lisbon&event=Frontend%20Summit%202026&number=12&site=frontendsummit.io&unit=days%20to%20go&s=YOUR_SIGNATURE">Make it yours
accent and theme change per request. For anything more, copy the template into your account: you get an ordinary HTML template with the same fields that you can edit in the dashboard or through the API. If the slug is free on your account, the copy takes it — your integrations switch to your version without changing a line.
curl -X POST "https://shareglint.com/v1/templates/library/animated-countdown/copy" \
-H "Authorization: Bearer sk_live_YOUR_KEY"
Event
Speaker card
Webinar
Community meetup
Countdown
Event ticket
Livestream
Event badge
Attending event