Head-to-head · Certificate Management Software
ManageEngine Key Manager Plus vs DigiCert ONE
ManageEngine Key Manager Plus leads on 1 check, DigiCert ONE on 0, and 5 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreManageEngine Key Manager Plus · 8.4/10
- Free planonly ManageEngine Key Manager Plus
ManageEngine Key Manager Plus scores higher on our rubric for certificate management software: 8.4 against 8.2 out of 10; our editors rank them #2 and #3.
ManageEngine Key Manager Plus offers free plan; DigiCert ONE doesn't publish it.
ManageEngine Key Manager Plus is the better fit for budget-conscious teams needing broad management. DigiCert ONE is the better fit for large organizations needing full lifecycle control.
- ManageEngine Key Manager Plus fits best
Budget-conscious teams needing broad management
- DigiCert ONE fits best
Large organizations needing full lifecycle control
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Side by side
| Feature | ManageEngine Key Manager Plus 8.4/10 Visit ↗ | DigiCert ONE 8.2/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 8.4 | 8.2 |
| Ranking | #2 in Certificate Management Software | #3 in Certificate Management Software |
| Best for | Budget-conscious teams needing broad management | Large organizations needing full lifecycle control |
| Pricing model | Free plan + paid | Paid |
| Starting price | $59/mo | Not published |
| Free plan | ✓ (best) | Not published |
| Free trial | — | — |
| Deployment | Cloud, Self-hosted | Cloud, Self-hosted |
| Platforms | Web, Windows, Linux | Web |
| Support | Email, Phone, Community, Docs | Email, Live chat, Phone, Docs · 24/7 |
| Integrations | 11 integrations | 12 integrations |
| Built for | Small business, Mid-market, Enterprise | Mid-market, Enterprise |
| Features ManageEngine Key Manager Plus 5/5 · DigiCert ONE 5/5 | ||
| Certificate discovery | ✓ | ✓ |
| Automatic renewal | ✓ | ✓ |
| Deployment automation | ✓ | ✓ |
| Revocation workflows | ✓ | ✓ |
| CA integrations | ✓ | ✓ |
| Specs | ||
| Certificate types | Tls | Tls |
| Our review | ||
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| Our verdict | ManageEngine Key Manager Plus is a certificate lifecycle management product for IT teams overseeing SSL/TLS certificates across enterprise environments. It discovers certificates across servers, domains, load balancers, mail servers,… Read the review → |
DigiCert ONE is a digital trust platform that brings together PKI, DNS, certificate lifecycle management, and related trust workflows. Its certificate capabilities cover discovery, inventory, issuance, renewal, deployment, revocation, and… Read the review → |
Strengths and trade-offs
ManageEngine Key Manager Plus — where it wins
- Discovers certificates across servers, domains, cloud environments, and certificate stores
- Automates renewal alerts, deployment, post-deployment actions, and revocation
- Connects with major certificate authorities, cloud platforms, and ITSM tools
Where it doesn't
- The free edition is limited to five keys
- Multiple licensing structures make price comparison less direct
- Does not include AI features
DigiCert ONE — where it wins
- Discovers and inventories certificates across networks, cloud, servers, and containers
- Automates renewal, installation, delivery, and revocation workflows
- Connects with major public and private certificate authorities and cloud platforms
Where it doesn't
- Pricing requires contacting sales or signing in for plan comparison
- Its broad trust-management scope may exceed narrow TLS requirements
- Lifecycle governance can be more than smaller teams need
- ManageEngine Key Manager Plus8.4/10 · Free plan · paid from $59/mo · 30-day trial
Broad certificate discovery and automation with flexible licensing and a five-key free edition.
Visit ManageEngineFull verdict → - DigiCert ONE8.2/10 · Pricing on request
Full certificate lifecycle control for large organizations managing diverse trust environments.
Visit DigiCert ONEFull verdict →
More comparisons
- DigiCert Trust Lifecycle Manager vs ManageEngine Key Manager Plus
- DigiCert Trust Lifecycle Manager vs DigiCert ONE
- ManageEngine Key Manager Plus vs Keyfactor Platform
- ManageEngine Key Manager Plus vs TigerTrust
- ManageEngine Key Manager Plus vs Sectigo Certificate Manager
- ManageEngine Key Manager Plus vs Certify The Web
- ManageEngine Key Manager Plus vs Entrust Certificate Manager
- DigiCert ONE vs Keyfactor Platform
All certificate management software comparisons → · Full ranking →
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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026
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