What is mkcertWeb?

mkcert Web UI is a self-hosted web application that gives developers a graphical interface for the mkcert command-line tool. It lets you create locally-trusted TLS certificates for many domains and IP addresses, exporting them in PEM, CRT, and PFX formats. A built-in SCEP server handles automatic device enrollment on iOS, macOS, and Windows. Security features include protection against command injection and path traversal, plus multi-tier rate limiting. Authentication supports username/password login and OpenID Connect single sign-on with providers such as Azure AD, Google, and Okta. Certificate expiry monitoring sends automated alerts via SMTP email, ntfy push notifications, or generic webhooks. The interface offers dark and light themes with responsive design. Deployment options include Docker Compose (recommended) or local Node.js installation with mkcert and OpenSSL as prerequisites. Licensed under GPL-3.0.

Should you self-host mkcertWeb?

mkcertWeb scores 48/100 on selfhost.directory (how scoring works) and ranks #6 of 8 in Certificate Management. It has 221 GitHub stars.

It shipped 13 stable releases in the past year. The latest, v4.4.2, came out on 15 October 2026. New versions land roughly every 10 days.

Setup is moderate: expect some configuration beyond a single command. An official Docker image is available. It is GPL-3.0-licensed and written mostly in JavaScript.

Its closest alternative on selfhost.directory is Certimate (67/100, 9 410 stars). It scores higher overall, so compare the two before you pick. See mkcertWeb vs Certimate side by side.