Harbor
MongoDB
| Feature | Harbor | MongoDB |
|---|---|---|
| Pricing | Free only | Free / from $0.1/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.3 / 5 | 4.5 / 5 |
| Best For | enterprise-devops, container-teams, security-teams, regulated-industries | startups, app-developers, content-management, iot-applications |
| Founded | 2016 | 2007 |
| Container Registry | ✓ | ✗ |
| Vulnerability Scanning | ✓ | ✗ |
| Rbac | ✓ | ✗ |
| Image Signing | ✓ | ✗ |
| Replication | ✓ | ✗ |
| Garbage Collection | ✓ | ✗ |
| Audit Logs | ✓ | ✗ |
| Document Storage | ✗ | ✓ |
| Atlas Cloud | ✗ | ✓ |
| Aggregation Pipeline | ✗ | ✓ |
| Full Text Search | ✗ | ✓ |
| Change Streams | ✗ | ✓ |
| Sharding | ✗ | ✓ |
| Time Series | ✗ | ✓ |
| Atlas Search | ✗ | ✓ |
✓ Harbor Pros
- Completely free and CNCF graduated project
- Built-in vulnerability scanning (Trivy integration)
- Image signing and policy enforcement
- Multi-registry replication for geo-distribution
✗ Harbor Cons
- Requires self-hosting and infrastructure management
- UI is functional but not modern
- Initial setup complexity for production
✓ MongoDB Pros
- Flexible document model handles varied data structures
- Atlas cloud service simplifies deployment and scaling
- Excellent developer experience and documentation
- Strong aggregation framework for complex queries
- Horizontal scaling with built-in sharding
✗ MongoDB Cons
- Not ideal for highly relational data
- Atlas costs can escalate with heavy usage
- Transactions less mature than relational databases
The Verdict
Harbor is built for enterprise devops and container teams, with a focus on container-registry and vulnerability-scanning. MongoDB targets startups and app developers and leads with document-storage and atlas-cloud.
Harbor uses custom enterprise pricing, while MongoDB starts at $0.1/mo — a tangible advantage for teams with a fixed budget.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
Feature-wise, MongoDB offers broader built-in capabilities (8 features vs 7), while Harbor takes a more focused approach — which can mean a simpler, faster onboarding experience.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.