How do I generate an OG image?

Request /og with title, subtitle, url and an optional template. The API returns a 1200×630 JPEG.

Yes. Responses are cached and served with long-lived cache headers.

Can I embed it directly?

Yes. Use it in an tag or fetch and store the bytes on your own server.

Previewly turns simple URLs into beautiful OG images

Fast, simple, and reliable. Point your <img> at a single endpoint with a few parameters and get a high‑quality JPEG fast and cached.

Build a link See examples Docs

Generated via /og

How it works

You request /og with query params.
We render the chosen HTML template server‑side.
You get a JPEG response (and it's cached).

Live link builder

Title

Subtitle

URL

Template

Your link

Open

Tip: Embed it directly in HTML: <img src="/og?..." /> or fetch it from your server‑side code and store the bytes.

Examples

template=card

template=neon_card

template=retro_poster

template=gradient_stripes

template=minimal_paper

template=glass_card

template=bold_typography

template=duotone_wave

template=magazine_cover

template=gradient_grid

template=mono_black

template=pastel_blobs

API

Endpoint

GET /og?title=...&subtitle=...&url=...&template=card|neon_card|retro_poster|gradient_stripes|minimal_paper|glass_card|bold_typography|duotone_wave|magazine_cover|gradient_grid|mono_black|pastel_blobs

Parameters

title (required): Main heading text.
subtitle (required): Supporting text.
url (required): Shown as source/brand.
template (optional, default card): Choose a look.

HTML usage

curl

Responses are served with Cache-Control: public, max-age=31536000, immutable and also cached on disk.