ZeroSSL

ZeroSSL is an incredibly sleek, highly tactical European disruptor that mathematically attacked the "Let's Encrypt Usability" bottleneck. Let's Encrypt requires command-line knowledge; ZeroSSL engineered a beautifully simple web UI on top of the ACME protocol. It is the absolute weapon of choice for non-technical bloggers, small business owners, and developers who mathematically demand 100% free SSL certificates, but physically want to click buttons in a browser instead of writing bash scripts in a Linux terminal.