Show HN: Thumbnail.ai – Automatically generate thumbnails for your blog posts

Every time you accept user-controlled input you need to think about filtering, and sanity-checking.

For example:

https://thumbnail.ai/create?link=http://127.0.0.1/server-sta...

Damn that is useful. I love it. Just put in a URL to a blog post of mine that had an infographic, but not a featured thumbnail, and it pulled in something from the infographic, and created it for me. I like it. thanks for sharing! Though I think I'd like an option where it doesn't pull the logo from my site and just gives me the image.

Hi HN, I built this MVP because using an image editor to create thumbnails for my blog posts was time consuming.

Good thumbnails can bring a lot of traffic to a post specially when shared on social networks. There are just 4 templates now and will add more. Would love your feedback.