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Bun vs Fiber

Side-by-side comparison of Bun and Fiber. Data-driven analysis for CTOs and engineering leaders.

Technical Profile

Bun

Scalability
high
Performance
very high
Learning Curve
easy
Maturity
stable
Languages: JavaScript, TypeScript, Zig

Fiber

Scalability
very high
Performance
very high
Learning Curve
easy
Maturity
stable
Languages: Go

When to Use

Bun

  • +Performance critical applications
  • +Greenfield projects
  • +Development tooling
  • +Want faster builds

Avoid Bun when

  • -Need stability guarantees
  • -Large enterprise systems
  • -Heavy native module usage

Fiber

  • +High-performance APIs
  • +Express developers moving to Go
  • +Real-time services

Avoid Fiber when

  • -net/http compatibility needed
  • -Complex middleware chains
  • -Enterprise standards

Compliance & Security

Bun

SOC 2GDPRHIPAAPCI-DSS

Security Features

EncryptionAudit LogsRBACMFA

Fiber

SOC 2GDPRHIPAAPCI-DSS

Security Features

EncryptionAudit LogsRBACMFA

Operations

Bun

Maintenance
low
Monitoring
low
Backup/Recovery
simple
Hosting: self-hosted, cloud

Fiber

Maintenance
low
Monitoring
low
Backup/Recovery
simple
Hosting: self-hosted, cloud

Frequently Asked Questions

How does scalability compare between Bun and Fiber?

Bun offers high scalability, while Fiber offers very-high scalability. Consider your expected traffic and data volume when choosing.

Which has the easier learning curve: Bun or Fiber?

Bun has a easy learning curve, while Fiber has a easy learning curve. Factor in your team's existing skills and onboarding timeline.

What are the pricing differences between Bun and Fiber?

Bun uses a free pricing model with a free tier. Fiber uses a free pricing model with a free tier. Evaluate total cost of ownership including operational overhead.

Which option is better for compliance: Bun or Fiber?

Bun supports SOC 2, GDPR, HIPAA, PCI-DSS. Fiber supports limited compliance certifications. Always verify current certifications directly with the vendor.

Need help deciding between Bun vs Fiber?

Use our interactive decision tool for a personalized recommendation.