1
Send a JSON payload
POST to the template endpoint with the values you want rendered. Authenticate with your API key.
Facebook Post Image Generator API
Bold share images sized for Facebook feed posts
Use cases for the Facebook Post Image Generator API
The Facebook Post Image template is the shortest path to a working facebook post image generator api from your stack. Send a small JSON payload, get back a tested PNG that fits your brand. No browser, no headless Chrome wrangling, no design tooling on your side.
Common reasons people reach for this template:
- Event and announcement graphics
- Promotion and offer images
- Page banner share content
How it works
2
We render the image
The template is rendered server-side as a 1200x630 PNG (or whatever dimensions the template defines).
3
You get back a URL
The response includes a CDN URL for the PNG. Cache it, embed it, attach it to a tweet, anything you need.
Quick example
A single cURL call to render a Facebook Post Image as a PNG:
curl -X POST https://app.html2img.com/api/v1/templates/facebook-post \
-H "X-API-Key: YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{"title":"Doors open Saturday \u2014 first 50 guests get a free print","subtitle":"Join us at the studio launch from 11am to 6pm.","eyebrow":"GRAND OPENING","cta":"RSVP at studioink.co/launch","background_color":"#1E3A8A","accent_color":"#F59E0B"}'For the full PHP, Node and Python equivalents, plus every input the template accepts, see the Facebook Post Image API reference. Setting up your key is covered in the authentication guide.
Inputs at a glance
A quick summary of what the Facebook Post Image template accepts. The full reference, including example values and array shapes, is in the docs.
| Name | Type | Required |
|---|---|---|
| title | string | Required |
| subtitle | string | Optional |
| eyebrow | string | Optional |
| cta | string | Optional |
| logo_url | url | Optional |
| background_color | string | Optional |
| accent_color | string | Optional |
See the full inputs reference for descriptions, examples and validation rules.
Related templates
Ready to render your first Facebook Post Image?
Sign up free, grab an API key, send a payload. The pricing page covers the higher-volume plans if you outgrow the free tier.