Over the years, I've used my fair share of these little online tools — converting currencies, turning files or images from one format into another. And always with the same hope: free, no spam, no ads, no subscription wall. Do you know the feeling? I bet you do. We've all been there at least once. So I decided to build my own. With my teammate Claude, I generated a set of HTML apps that work flawlessly and do exactly what they promise — for free, with no spam and no subscript