undici
High performance HTTP client with zero dependencies.
Pricing
Free tier
Flat rate
Adoption
→StableLicense
Open Source
Data freshness
Aging · Jun 8, 2026Overview
What is undici?
Undici is a high-performance HTTP client for Node.js, built from scratch without any external dependencies. It offers improved performance and reliability over the default Node.js HTTP module.
Key differentiator
“Undici stands out as a lightweight, dependency-free HTTP client designed specifically to enhance performance and reliability in Node.js applications.”
Capability profile
Capability Radar
Honest assessment
Strengths & Weaknesses
↑ Strengths
↓ Weaknesses
The official documentation lacks detailed guides and practical examples, making it difficult for developers to fully leverage its capabilities.
Fewer community contributions and slower response times on forums and issues due to the newer status of Undici.
Undici is designed for modern Node.js environments, which may lead to incompatibility or performance degradation when used with older versions.
Fit analysis
Who is it for?
✓ Best for
Node.js developers who need a high-performance, dependency-free HTTP client.
Projects requiring optimized HTTP request handling to improve application speed and reliability.
✕ Not a fit for
Developers looking for a full-featured web framework with built-in HTTP capabilities.
Applications that require extensive customization of the HTTP client beyond what Undici offers.
Cost structure
Pricing
Free Tier
Available
Open source — free to use
Starts at
$0
Model
Flat rate
Enterprise
None
Performance benchmarks
How Fast Is It?
Ecosystem
Relationships
Alternatives
Next step
Get Started with undici
Step-by-step setup guide with code examples and common gotchas.