I built 50+ developer tools that run entirely in your browser — here's why privacy matters and how I did it

Every week I open a new browser tab and search for something like "json formatter online" or

"jwt decoder" or "regex tester". And every week I land on a site that:

Shows me three ad banners before I can see the tool

Requires me to create an account to "save" my work

Is quietly uploading my payload to their server