Apps similar to CertKit include Certbot, which is free and open source. Other options are ZeroSSL, acme.sh, Certificate Expiry Monitor and TokenTimer. In total there are nine Certificate Authorities like CertKit for self-hosting, Linux, the web, Mac and Windows.
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.
United States
Free SSL certificates issued instantly online with Free SSL Certificate Wizard. Downloadable client for all platforms and Docker image available.
Austria
EU
TokenTimer is a certificate lifecycle automation and expiration management platform for DevOps, SRE, platform engineering, security and IT teams.
Self-hosted certificate lifecycle management: issue, renew, discover, inventory and deploy TLS certificates across your infrastructure.
CompliBase is a compliance document control platform for businesses operating across more than one site. It tracks every permit, licence, certificate and vendor record in one workspace, with expiry dates and automated renewal reminders so documents don't lapse unnoticed.
South Africa
