# Certificate Expiry Monitor vs Entrust Certificate Manager: side-by-side comparison (2026) [Certificate Expiry Monitor](https://cybersectools.com/tools/certificate-expiry-monitor) is a free [certificate lifecycle management](https://cybersectools.com/categories/clm) solution. [Entrust Certificate Manager](https://cybersectools.com/tools/entrust-certificate-manager) is a commercial [certificate lifecycle management](https://cybersectools.com/categories/clm) solution by [Entrust](https://cybersectools.com/companies/entrust). Features, integrations, deployment and the company behind each one, side by side. ## Side-by-side comparison | | Certificate Expiry Monitor | Entrust Certificate Manager | |---|---|---| | Pricing model | Free | Commercial | | Category | Certificate Lifecycle Management | Certificate Lifecycle Management | | Verified | No | No | | Deployment type | On-Premises | Hybrid | | Company size fit | SMB, Mid-Market, Enterprise | Mid-Market, Enterprise | | GitHub stars | 168 | – | | Last commit | Jun 2022 | – | | Company | – | Entrust | | Headquarters | – | – | ### Use cases and capabilities | | Certificate Expiry Monitor | Entrust Certificate Manager | |---|---|---| | Kubernetes | Yes | – | | TLS | Yes | Yes | | SSL | Yes | Yes | | Alerting | Yes | – | | Encryption | – | Yes | | Quantum Safe | – | Yes | | Zero Trust Architecture | – | Yes | | Crypto | – | Yes | ### Core features **Certificate Expiry Monitor** No features listed. **Entrust Certificate Manager** 8 features listed. Sign in on the page to see them. ### Integrations **Certificate Expiry Monitor** No integrations listed. **Entrust Certificate Manager** 2 integrations listed. Sign in on the page to see them. ## Which one fits you Based on what each listing shows: deployment, company size, price and open source. - [Certificate Expiry Monitor](https://cybersectools.com/tools/certificate-expiry-monitor) fits if you need to run it on your own servers, you are a small business, you need a free product and you want an open-source product. - [Entrust Certificate Manager](https://cybersectools.com/tools/entrust-certificate-manager) fits if you need both cloud and on-premises options. ## Certificate Expiry Monitor vs Entrust Certificate Manager FAQ Common questions when comparing Certificate Expiry Monitor vs Entrust Certificate Manager for certificate lifecycle management. ### What is the difference between Certificate Expiry Monitor and Entrust Certificate Manager? **Certificate Expiry Monitor**: A Docker-based utility that monitors TLS certificate expiration dates and exposes the data as Prometheus metrics with support for Kubernetes ingress discovery and configurable domain filtering. **Entrust Certificate Manager**: Automates discovery, issuance, renewal, and revocation of digital certificates at scale, built by Entrust. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes Certificate Expiry Monitor and Entrust Certificate Manager? **Certificate Expiry Monitor** is open-source with 168 GitHub stars. **Entrust Certificate Manager** is made by Entrust. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is Certificate Expiry Monitor a good alternative to Entrust Certificate Manager? Often, yes. Certificate Expiry Monitor and Entrust Certificate Manager are both Certificate Lifecycle Management products, and both cover SSL, TLS. Key differences: Certificate Expiry Monitor is Free while Entrust Certificate Manager is Commercial, Certificate Expiry Monitor is open-source. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [Certificate Expiry Monitor vs Evertrust](https://cybersectools.com/compare/certificate-expiry-monitor-vs-evertrust) - [Certificate Expiry Monitor vs TrustFour T4 Control Plane](https://cybersectools.com/compare/certificate-expiry-monitor-vs-trustfour-t4-control-plane) - [Certificate Expiry Monitor vs eMudhra CERTInext](https://cybersectools.com/compare/certificate-expiry-monitor-vs-emudhra-certinext) - [Entrust Certificate Manager vs Evertrust](https://cybersectools.com/compare/entrust-certificate-manager-vs-evertrust) - [Entrust Certificate Manager vs TrustFour T4 Control Plane](https://cybersectools.com/compare/entrust-certificate-manager-vs-trustfour-t4-control-plane) - [Entrust Certificate Manager vs eMudhra CERTInext](https://cybersectools.com/compare/emudhra-certinext-vs-entrust-certificate-manager) ## Alternatives to each - [See all Certificate Expiry Monitor alternatives](https://cybersectools.com/alternatives/certificate-expiry-monitor) - [See all Entrust Certificate Manager alternatives](https://cybersectools.com/alternatives/entrust-certificate-manager) --- Source: https://cybersectools.com/compare/certificate-expiry-monitor-vs-entrust-certificate-manager For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/certificate-expiry-monitor.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on Certificate Expiry Monitor and Entrust Certificate Manager: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md