Who buys this
Small e-commerce brands who run paid social ads but cannot afford a video editor on staff.
Where to start in Lovable
Paste this into Lovable as the opening prompt. It sets up one screen and one job, which is easier to grow from.
Build a video ad generator for e-commerce. User connects a product feed or pastes a product URL, and the app pulls existing product photos plus the description to generate a fifteen-second vertical video ad with captions, a voiceover script, and background music, following a chosen template (unboxing, before-after, testimonial style). Let the user regenerate the voiceover script and swap music independently of the visuals. Store finished ads in a library with a download button per aspect ratio.
What you will need to wire up
- Lovable AI Gateway (script + TTS)
- Video rendering service (Shotstack or Remotion pipeline)
- Lovable Cloud (Postgres, storage)
- Product feed API (Shopify/CSV)
- Stripe
Build order
- Nail one template end to end. Do not build three ad templates at once. Get the unboxing-style template rendering a full video from a real product URL, including music and captions, before adding the second style.
- Separate script generation from rendering. Rendering a video costs real money and takes real time, so let the user approve the voiceover script as plain text first. Only send the approved script to the renderer, otherwise you burn render credits on drafts nobody wanted.
- Cache rendered segments. When a user swaps only the music track, do not re-render the whole video from scratch. Structure the pipeline so visuals, voiceover, and music are composited as separate layers that can be recombined without a full re-render.
- Charge per rendered ad, not per generation attempt. Script drafts and thumbnail previews should be free to iterate on, and the meter should click only when someone downloads a finished video, which is the moment real value changed hands.
Where this usually breaks
- Auto-fetched product photos are often low resolution or have a busy background, and the rendered video looks amateurish. Add a background removal step and reject images below a resolution threshold before they enter the pipeline.
- Text-to-speech voiceovers mispronounce brand names and product jargon consistently. Let users type a phonetic override for specific words and store it per brand so it never has to be corrected twice.
How it makes money
- Credit pack per finished video. Matches your render cost directly and lets small brands buy in small batches around a campaign launch.
- Monthly plan with an ad volume cap. Better for agencies running many brands, since predictable billing beats a metered invoice for their own client budgeting.
Build this on Lovable
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