gimmecert ☆

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Description:
Quickly issue X.509 server and client certificates using locally-generated CA

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Security

Tags: security tls ssl certificates development cli

Install: brew install gimmecert

About:
Gimmecert is a command-line utility that simplifies the creation of local Certificate Authorities (CA) and the issuance of X.509 certificates for servers and clients. It automates the complex OpenSSL workflow, providing a straightforward interface for generating certificates suitable for local development and testing environments. This tool eliminates the need for manual configuration files and complex command chains.

Key Features:

Automated local Certificate Authority (CA) generation
Simple commands for issuing server and client certificates
Eliminates manual OpenSSL configuration complexity
Designed for local development and testing workflows

Use Cases:

Securing local web development environments (e.g., localhost HTTPS)
Generating client certificates for mutual TLS (mTLS) authentication
Setting up secure communication between local microservices

Alternatives:

mkcert – mkcert installs a root CA into the system trust store, whereas Gimmecert keeps the CA entirely local and requires manual trust configuration.
OpenSSL – OpenSSL is a powerful but complex toolkit requiring manual configuration, while Gimmecert provides a simplified, opinionated workflow.

Version History

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