When building small online utilities, one question comes up surprisingly often: Does the user's data really need to leave their browser? For many types of tools, the answer is no. That's one of the principles behind Giga Useful Tools : whenever possible, tools should perform their processing di...
Source: [Dev.to](https://dev.to/mdp88/how-i-built-browser-based-tools-without-sending-user-data-to-a-server-1852)