CertMate is described as 'Self-hosted certificate lifecycle management: issue, renew, discover, inventory and deploy TLS certificates across your infrastructure' and is an app in the development category. There are more than 10 alternatives to CertMate for a variety of platforms, including Linux, Self-Hosted, Windows, Mac and Web-based apps. The best CertMate alternative is Certbot, which is both free and Open Source. Other great apps like CertMate are xca - X Certificate and Key management, acme.sh, Dogtag Certificate System and Smallstep Certificates.
Certbot is an open source tool from EFF for automating HTTPS deployment on websites, supporting servers like Apache and nginx. Works with Let's Encrypt for free certificates, accessible via command line, ensuring security with automatic renewal and optional HTTP to HTTPS redirection.
X Certificate and Key management is an interface for managing asymetric keys like RSA or DSA. It is intended as a small CA for creation and signing certificates. It uses the OpenSSL library for the cryptographic operations.
The Dogtag Certificate System is an enterprise-class open source Certificate Authority (CA). It supports all aspects of certificate lifecycle management, including key archival, OCSP and smartcard management, and much more.
A private certificate authority (X.509 & SSH) & ACME server for secure automated certificate management, so you can use TLS everywhere & SSO for SSH.
CertKit provides automated SSL/TLS certificate management software that eliminates the complexity of maintaining certificates across modern infrastructure. Founded by engineers who spent too many hours debugging certificate renewals and watching competent teams waste days on...
TLS Checker is a Free TLS / SSL Expiry Monitoring Service which includes Discovery, Inventory and Management of certificates. For Free.
Look no further if you are you looking for a simple way to mass produce certificates.
TokenTimer is a certificate lifecycle automation and expiration management platform for DevOps, SRE, platform engineering, security and IT teams.
A private Certificate Authority for internal (lab) use, based on the open source ACME Automated Certificate Management Environment implementation from Let's Encrypt (tm).
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