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4.6/5.0
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Markdown for AI (.md)

Harbor

Open source cloud native registry securing containers and artifacts for Kubernetes environments.

Pricing

$0/mo

Free
Score

4.6/5

License
Apache-2.0
Certifications
3
Last technical review
2026-10-28
Available plansVisit website (opens in a new tab)

Technical Overview

Harbor is a CNCF graduated open source registry that secures artifacts with policies and role-based access control, ensures images are scanned for vulnerabilities, and signs images as trusted. Designed for Kubernetes and Docker platforms, it is deployed via self-hosted infrastructure and distributed under an open source license.

Analyst Evaluation: Pros and Limitations

Verified Advantages

  • CNCF graduated project with strong production adoption in Kubernetes environments.
  • Integrated vulnerability scanning and image security compliance policies.
  • Native support for OCI specifications and multiple artifact types including helm charts.

Technical Considerations

  • Requires dedicated operational maintenance as a self-hosted software solution.
  • Initial configuration of certificates and replication policies demands advanced expertise.

Technical Capabilities & Features

7/7
Included:REST & GraphQL API
Included:SSO / SAML Authentication
Included:Self-Hosted Option
Included:Full Data Export
Included:Role-Based Access Control (RBAC)
Included:Custom Domains & SSL
Included:Immutable Audit Logs
Scorecard
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Technical Scorecard: Harbor

89/100
DX & Tech Documentation
Excellent
85/100
Pricing Fairness
Excellent
100/100
Security & Governance
Excellent
90/100
Data Portability & Sovereignty
Excellent
95/100
Performance & Reliability
Favorable
75/100

Time to Value & Fit by Segment: Harbor

Estimated Time-to-Value1 - 7 days (Agile)

Standard sprint integration without complex external dependencies.

Learning CurveModerate (Standard)

Requires consulting technical documentation and basic credentials setup.

Fit Index by Organization Size

Startup & Agile Teams1 to 50 members
70%
Mid-Market & Scaleup50 to 500 members
90%
Corporate Enterprise500+ members
95%
Pricing & TCO
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Pricing

$0.00/mo

Model: FREE.

Free Tier Verification:

  • No credit card required
  • Commercial use allowed
  • Unlimited usage with no expiration
  • No mandatory watermarks
Get Harbor (opens in a new tab)

Billing Risks & Hidden Clauses: Harbor

Free Tier Limits:

Completely free and open source software available under CNCF governance.

Total Cost of Ownership (TCO) Projection: Harbor$0.00/mo
Deterministic cost estimation at 12 and 36 months based on team size, including SSO tax premiums and annual prepay discounts.
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Licensing Cost (1 to 100+ seats)
$0/forever
Unlimited team members with zero penalties
SSO Tax (SAML Enterprise)
$0no surcharge
No artificial security barriers
3-Year Investment (Software TCO)
$0total
operates under a zero-cost or open-source model. Licensing TCO is identical:
Usage Surcharges & Bill Shock Simulator: HarborWhat usage costs as you scale
Detect overage penalties before they impact engineering budget.
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Prototype / MVP (10 GB)

Included base quota in plan: 10 GB.
Low Risk / Predictable Bill
Base Monthly Rate
$0/mo
Fixed subscription or contracted tier
Overage Penalty
$0/month extra
Usage covered within plan quota
Estimated Monthly Invoice
$0/mo
Total monthly cost before taxes
Technical Mitigation Recommendation:

Suitable for development; verify concurrent connection limits.

Base Production (50 GB)

Included base quota in plan: 50 GB.
Low Risk / Predictable Bill
Base Monthly Rate
$0/mo
Fixed subscription or contracted tier
Overage Penalty
$0/month extra
Usage covered within plan quota
Estimated Monthly Invoice
$0/mo
Total monthly cost before taxes
Technical Mitigation Recommendation:

Implement table compression policies and temporal partitioning.

Active Growth (250 GB)

Included base quota in plan: 250 GB.
Low Risk / Predictable Bill
Base Monthly Rate
$0/mo
Fixed subscription or contracted tier
Overage Penalty
$0/month extra
Usage covered within plan quota
Estimated Monthly Invoice
$0/mo
Total monthly cost before taxes
Technical Mitigation Recommendation:

Offload cold backups to standard object storage (S3).

Large Scale (1.000 GB (1 TB))

Included base quota in plan: 1,000 GB.
Low Risk / Predictable Bill
Base Monthly Rate
$0/mo
Fixed subscription or contracted tier
Overage Penalty
$0/month extra
Usage covered within plan quota
Estimated Monthly Invoice
$0/mo
Total monthly cost before taxes
Technical Mitigation Recommendation:

Migrate to dedicated instance or self-hosted cluster to curtail I/O fees.

Security & Data Exit
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Compliance & Security Standards: Harbor

SOC 2 Type IIAudited
ISO 27001Audited
GDPR / RGPDAudited
HIPAANot reported
PCI-DSSNot reported
Jurisdiction & Legal Sovereignty
🇺🇸United States [US]Subject to US CLOUD ActDPA On Request
SSO Availability (SAML Enterprise)
Integrated Free SSO
Data Residency
SELF_HOSTEDAWSGCPAzure
AI Privacy Policy
Not evaluated
Data Liberation & Migration Runbook: HarborOCI CONTAINER IMAGES · HELM CHARTS
Actionable escape runbook and credential export guarantees to mitigate vendor lock-in.
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Supported Structured Export Formats
OCI CONTAINER IMAGESHELM CHARTS
Password Hash Portability
Exportable Hashes (Bcrypt / Argon2): Zero Forced Retention

Allows extracting password hashes in standard formats to migrate without forcing user resets.

CLI Command / Rescue Endpoint
docker push / docker pull
Exit Protocol & Migration Notes

Migration is performed by pushing and pulling container images and charts standardly using Docker or Helm CLI clients against the registry endpoints.

Deployment & Infrastructure Requirements: HarborApache-2.0
Hardware specs and Docker directives to run on local servers, dedicated VPS, or Kubernetes without telemetry leak to the cloud.
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Minimum Memory1 GB RAM (Recommended)
Compute CPU1 vCPU
Runtime / LanguageGo
Code LicenseApache-2.0
Docker CLI Directive
docker run -d --name harbor -p 8080:8080 harbor:latest
Companion Services & Dependencies:
PostgreSQL 15+Redis 7+
Community & Repository
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Technical Reputation of Harbor

79/100 Technical Trust

Frequent Praises in Production

  • CNCF graduated project with strong production adoption in Kubernetes environments.
  • Integrated vulnerability scanning and image security compliance policies.
  • Native support for OCI specifications and multiple artifact types including helm charts.

Reported Production Frictions

  • Requires dedicated operational maintenance as a self-hosted software solution.
  • Initial configuration of certificates and replication policies demands advanced expertise.
Commercial Treatment & Vendor Lock-in:1-Click Cancellation

Immediate cancellation from account settings without phone calls or forced retention.

Open source repository activity: Harbor29,633
Stars, forks and release cadence
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Stars29.6k
Forks5.4k
Open Issues967
SPDX LicenseApache-2.0
Latest Commit DetectedOct 28, 2026

Frequently Asked Technical Questions (Harbor)

How is Harbor installed and deployed on infrastructure?

Harbor is deployed using Docker containers via Docker Compose or directly on Kubernetes clusters using official Helm charts provided in the documentation.

Does Harbor include automated vulnerability scanning?

Yes, it integrates tools like Trivy or compatible scanners to analyze container images for known vulnerabilities prior to production deployment.

Is it possible to synchronize repositories between multiple Harbor instances?

Yes, Harbor features native replication capabilities to synchronize images, charts, and tags across geographically distributed instances or cloud environments.

Direct Alternatives

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