[cfssl] How to generate the custom TLS certificate in 2 mins
Nov 2025 Update ⚡ Generate instantly: OneClickTLS.com - create self-signed TLS/mTLS certificates in seconds, directly in your browser. No uploads, no storage, and no setup needed - just instant generation. If it saves you time, you can ☕ Buy me a coffee to support future tools like this. I originally wrote this post a couple of years ago to document my workflow for creating self-signed certificates. Since then, I’ve built a small online tool called OneClickTLS that lets you generate TLS and mTLS certificates instantly in your browser. Just enter your Common Name (CN) and Subject Alternative Names (SANs), and it will give you ready-to-use certificate and key files. ...