Tools Practical By Samson Tanimawo, PhD Published Jan 15, 2026 4 min read

mkcert for Local TLS

Local development TLS without certificate fights.

Install

mkcert -install adds a local CA to system trust.

One-time setup per workstation.

mkcert example.test generates cert for the local domain.

Signed by your local CA; trusted by your browser.

Local dev requiring HTTPS. OAuth callbacks, secure cookies.

Saves the 'unsecured' browser warnings.