1200×630 · edge-cached

Ecommerce Social Covers & Dynamic OG Image API

Generate branded social preview images for product pages, blogs, SaaS pages, and other links — with titles, prices, sale badges, ratings, and product imagery.

See API plans

Free OG Image Tester — no signup required · Studio — static PNG exports · Dynamic API — signed per-link images

fastog.com/api/v1/og?template=product&title=…
Product social card rendered by FastOG
product
30,722
OG images created by the FastOG API
48
Templates
10
Language SDKs
0
cache hit cost — identical URLs edge-cached

01

Free OG Image Tester & Preview

Try it now! Customize your OG image and see the results in real-time. No signup required.

fastog.com/api/v1/og?template=default&title=Your%20Awesome%20Content… 1200×630 · edge-cached
Preview
Default
100%
Default

Brand 8

Content 4

Developer 3

Social 6

Data 2

Commerce 15

Media 7

Specials 3

20/120
Auto-derived from background

Get the integration cheat-sheet — optional. No spam, no account.

04

Real products, real covers

Every product on our own stack ships on FastOG. These are the actual og:image covers their sites publish — the same engine you can use in minutes.

05

Built for the link preview

Simple API, beautiful templates, AI-assisted ideation, and instant generation.

Lightning Fast

01

Generate images in milliseconds with our optimized rendering engine.

Beautiful Templates

02

Choose from professionally designed templates or create your own.

Two ways to pay

03

One-off Studio credits for static downloads, or a monthly Dynamic API plan for per-link images.

Developer-Friendly API

04

Simple REST API with comprehensive documentation and examples.

Fully Customizable

05

Customize colors, fonts, layouts, and more to match your brand.

Cache-ready delivery

06

Stable signed URLs with a one-year cache lifetime for repeat requests.

AI-assisted covers

Describe your brand and our model suggests ready-to-apply templates, headlines and palettes — right in the dashboard.

Available to logged-in users in the Playground.

06

How it works

Design once, serve every page.

01

Pick where you start

Buy Studio credits for static downloads, or choose an API plan for dynamic images.

02

Design your cover

Pick a template in the Playground, set your title and brand, and preview instantly.

03

Ship it

Download the PNG to self-host, or drop the signed API URL into your og:image tag.

LavX News article about FastOG's ecommerce social covers and dynamic OG image API

07 · Third-party article

FastOG generates ecommerce social covers and dynamic OG images with signed URLs.

A technical look at product social previews, HMAC-SHA256 signing, headless rendering, and cache-ready image URLs.

LavX News · Niklas Berg · August 18, 2026 · 1 min read

08

Choose how you ship OG images

Buy Studio credits for downloadable PNGs, or subscribe to Dynamic API for live, per-link images.

Single

$5

5 images · ~$1.00 / image

  • Clean PNG, no FastOG mark
  • Commercial usage license
Buy Studio credits
POPULAR

Pack

$19

30 images · ~$0.63 / image

  • Clean PNG, no FastOG mark
  • Credits never expire
Buy Studio credits

Studio Pro

$49

100 images · ~$0.49 / image

  • Clean PNG, no FastOG mark
  • Credits never expire
Buy Studio credits

Studio credits are one-time purchases and never expire. Dynamic API subscriptions renew monthly and can be canceled anytime; access continues through the current billing period.

09

Frequently Asked Questions

Answers about FastOG's dynamic Open Graph image API, pricing, and caching.

What is a dynamic Open Graph image API?

An Open Graph image API generates the 1200×630 social preview image for a page on demand from a URL. FastOG renders a unique, branded card for every blog post, product page, or SaaS page automatically — no design work, no uploads. It works with any framework through one-file signers for Node, React, SvelteKit, Vue, Astro, PHP, Python, and more.

Is FastOG free to try?

Yes. There's a free OG Image Tester that needs no login. Want a static one-off cover? Buy Studio credits and download it. Need dynamic per-link images? That's a Dynamic API plan. Identical URLs are edge-cached so re-shares cost nothing.

How much does FastOG cost per image?

Studio: one credit per downloaded PNG (buy a pack, credits never expire). Dynamic API: an active monthly subscription with unmetered current-plan renders — and identical URLs are edge-cached, so re-shares cost nothing.

Do signed OG image URLs expire?

No. FastOG signs the content, not the clock — a URL stays valid until you rotate your API key's HMAC secret. Content-signing also keeps caching deterministic: identical parameters always produce the identical, cached URL.

Can I use FastOG without Next.js?

Yes — FastOG is framework-agnostic. It works with plain HTML, WordPress, Astro, Nuxt, SvelteKit, PHP, Python, Ruby, and any server-side language. Just drop in your language's signer file from the SDK page.

Docs

Make the next link worth clicking.

All available templates, 10 language signers, a free no-login tester — and dynamic per-link images.

A BeCaSimulations site