
Bannerbear
by Jon Yongfook
Jon Yongfook solo-bootstrapped Bannerbear, an image and video generation API, to $1M ARR, about $83K a month, on plain old Rails and jQuery.

What they built
Bannerbear is an API that generates marketing images and video from templates. You design a template once, then send in text and pictures and get back finished graphics, at scale, without a designer touching each one. It plugs into no-code tools like Zapier and Make, so a marketer can auto-generate social cards, product images or personalised visuals as part of a workflow. The customer is any team that needs a lot of on-brand images and does not want to make them by hand.
How they did it
Jon Yongfook did it solo and in public. He committed to a public build challenge, shared his numbers openly, and grew through content, integrations and word of mouth rather than a funded growth team. The tech is deliberately unglamorous, Rails and jQuery, which is part of the lesson: he shipped and charged instead of chasing the newest framework. One person, one focused API, years of steady compounding.
“Bannerbear got to $1 million ARR on Rails 6 and jQuery. You don't need to be on the cutting edge of tech all the time.”
View on XThe numbers
Jon posted that Bannerbear reached $1M ARR, which is about $83K a month, built and run solo (source). It is a founder self-report, so treat the figure as claimed rather than audited.
What to take from it: pick a job that scales badly by hand, like making thousands of images, and sell the API that does it automatically. Old, stable tech is fine. Getting paid is the point.
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