mkcert ☆
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Description:
Simple tool to make locally trusted development certificates
Type: Formula  |  Latest Version: 1.4.4@0  |  Tracked Since: Oct 10, 2025
Links: Homepage  |  @FiloSottile  |  formulae.brew.sh
Category: Security
Tags: tls certificates development security https
Install: brew install mkcert
About:
mkcert is a command-line utility that generates valid, locally-trusted TLS certificates for development environments. It automatically sets up a local Certificate Authority (CA) and configures the system trust stores, eliminating browser certificate warnings without needing internet access or complex configuration.
Key Features:
  • Automatic local CA setup and installation
  • No configuration required for most use cases
  • Supports multiple hostnames and IP addresses per certificate
  • Works with system trust stores (macOS, Linux, Windows)
Use Cases:
  • Securing local development web servers
  • Testing HTTPS-dependent applications locally
  • Developing services that require valid TLS certificates
Alternatives:
  • openssl – More complex manual process for creating trusted certificates
  • Caddy – Web server with automatic HTTPS, but heavier than mkcert for certificate generation only
Version History
Detected Version Rev Change Commit
Oct 10, 2025 3:12pm 0 VERSION_BUMP 713031ec
Sep 10, 2024 8:32am 0 VERSION_BUMP c6354f43
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