OG Image

YES

Replaceable in one session with an AI coding agent.

Generates the preview image that appears when a link is shared, from a template and the page title, so every page has a card without a designer.

Promptfree, for everyone, and the only version there is

Generate social cards at build time.

STACK
- satori to turn JSX into SVG, resvg to rasterise, run in your build

WHY BUILD TIME
- A card is the same every time the page is. Generating on request means a cache and a cold start for nothing

THE TEMPLATE
- 1200 by 630, one strong headline, one supporting line, your mark in a corner
- Test at 25% size: if the headline is unreadable there, it is unreadable in a timeline

TEXT THAT DOES NOT FIT
- Measure and step the font size down through a fixed ladder, then clamp with an ellipsis
- Never let a long title overflow silently

FONTS
- Load the WOFF or TTF from disk and pass it to satori; a missing font renders as blank boxes

HOUSEKEEPING
- Delete any card the build did not write this run, or removed pages leave images behind

Include the template, the font loading and the size ladder.

What you lose

Templates designed to read at thumbnail size, which is harder than it looks
Font loading and text fitting handled for arbitrary titles
A hosted endpoint with caching, so nothing runs at request time

If you would rather not build

Vercel OG, if you deploy there
A hand-made image per page, for a small site

The escape hatch

open source · no votes, no paid placement

satori

Renders JSX and CSS to SVG, which is how most card generators work.

vercel/satorifree · open source

resvg-js

Rasterises that SVG to PNG without a browser.

thx/resvg-jsfree · open source

Why this verdict

our own opinion · changed only by a person

95/100

Verdict yes at 95. satori and resvg do the work; the only real craft is making the headline readable at thumbnail size.

History

tracked since 10 Aug 2026 · nothing is ever overwritten

Interest · last 30 days

Nothing recorded yet. This chart fills in once the page has visitors, votes or prompt copies — it will not draw a flat line to look busy.

Questions about OG Image

answered from the record above

Is OG Image free?

No — the plan we track is $12 a month. Around $12/month billed monthly for generated social preview images.

Can you replace OG Image by building your own?

YES. Replaceable in one session with an AI coding agent. Replacement score 95 out of 100, build time one session. Read what you lose before you decide.

How much does OG Image cost?

$12 a month on Pro — $144 a year. Recorded 10 Aug 2026.

What do you lose by replacing OG Image?

Templates designed to read at thumbnail size, which is harder than it looks; Font loading and text fitting handled for arbitrary titles; A hosted endpoint with caching, so nothing runs at request time. If any of those carry weight for you, keep paying.

Is there an open-source alternative to OG Image?

Yes: satori, resvg-js. The prompt on this page is for when you want it your way instead.

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