Bannerbear

bannerbear.com

YES

Replaceable in one session with an AI coding agent.

Generates images and short videos from templates through an API: you design once, then pass text and pictures and it returns a finished file.

Promptfree, for everyone, and the only version there is
Generate images from templates in your own build.

STACK
- satori for JSX to SVG, resvg to rasterise, one endpoint or a build step

TEMPLATES
- A template is a component taking typed props
- Keep them in the repository so a layout change is a reviewed diff

TEXT THAT DOES NOT FIT
- Measure, then step the size down through a fixed ladder, then clamp with an ellipsis
- Never let a long string overflow silently; that is the failure people notice

FONTS
- Load the font files from disk and pass them in; a missing font renders as blank boxes

CACHING
- Key on a hash of the template name and every prop
- Identical inputs return the stored file and never re-render

IF YOU NEED VIDEO
- Render frames the same way and assemble with ffmpeg; do not render video per request

Include the template, the size ladder and the cache key.

What you lose

  • A visual template editor so a designer can change the layout without touching code
  • Rendering capacity for bursts without you provisioning anything
  • Video templates as well as images

If you would rather not build

  • Playwright screenshotting an HTML template
  • Sharp compositing, for simple layouts

The escape hatch

open source · no votes, no paid placement

satori

$0

Turns JSX and CSS into SVG without a browser.

vercel/satorifree · open source

resvg-js

$0

Rasterises that SVG to PNG quickly.

thx/resvg-jsfree · open source

Why this verdict

our own opinion · changed only by a person

89/100

Verdict yes at 89. satori plus resvg is the whole engine. The size ladder is the only piece of real craft.

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 Bannerbear

answered from the record above

Is Bannerbear free?

No — the plan we track is $49 a month. Automate at around $49/month billed monthly for a fixed number of generated images.

Can you replace Bannerbear by building your own?

YES. Replaceable in one session with an AI coding agent. Replacement score 89 out of 100, build time one session. Read what you lose before you decide.

How much does Bannerbear cost?

$49 a month on Automate — $588 a year. Recorded 10 Aug 2026.

What do you lose by replacing Bannerbear?

A visual template editor so a designer can change the layout without touching code; Rendering capacity for bursts without you provisioning anything; Video templates as well as images. If any of those carry weight for you, keep paying.

Is there an open-source alternative to Bannerbear?

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

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