Node-fetch vs Undici

Side-by-side NPM package comparison

node-fetch

Extremely Popular

Version 3.3.2

61
Good

A light-weight module that brings Fetch API to node.js

Weekly Downloads
114.5M
35%
Bundle (gzip)
22.6 KB
Updated
Vulns
0

Health Score Breakdown

Maintenance
20
Popularity
100
Quality
50
Security
100
Stability
70

undici

Extremely Popular

Version 7.22.0

85
Excellent

An HTTP/1.1 client, written from scratch for Node.js

Weekly Downloads
58.1M
57%
Bundle (gzip)
451.8 KB
Updated
Vulns
0

Health Score Breakdown

Maintenance
100
Popularity
100
Quality
50
Security
100
Stability
70

Choosing between Node-fetch and Undici? Here's a data-driven comparison based on real npm data — downloads, bundle size, health scores, and more — to help you decide which package fits your project best.

Downloads & Popularity

Node-fetch leads with 114.5M weekly downloads — roughly 2.0x more. Undici has 58.1M weekly downloads. Higher download counts generally indicate broader community adoption and a larger ecosystem of tutorials, plugins, and support.

Bundle Size

Node-fetch has the smallest gzipped bundle at 22.6 KB. Undici comes in at 451.8 KB. A smaller bundle size means faster page loads, which improves user experience and Core Web Vitals scores.

Health Score Comparison

Undici has an overall health score of 85/100 (very good), with strong maintenance, security, popularity scores. Node-fetch has an overall health score of 61/100 (good), with strong security, popularity scores. Health scores are calculated from maintenance activity, code quality, security posture, popularity, and stability metrics.

When to Choose Each

Choose Node-fetch if you value massive community and ecosystem, strong security track record. Choose Undici if you value massive community and ecosystem, actively maintained, strong security track record.

Our Verdict

Both Node-fetch and Undici are solid choices for JavaScript development. Undici has the edge in overall health score (85/100), while each package brings unique strengths to the table. Evaluate them based on your project's priorities — whether that's community size, bundle efficiency, or maintenance activity — and choose the one that aligns best with your requirements.

Frequently Asked Questions

Is node-fetch better than undici?
It depends on your needs. Node-fetch has a health score of 61/100 while Undici scores 85/100. Node-fetch has more weekly downloads (114.5M), suggesting broader adoption. Consider your specific requirements — bundle size, community support, and feature set — to decide which is the better fit.
Which has a smaller bundle size, node-fetch or undici?
Node-fetch has the smaller gzipped bundle at 22.6 KB. A smaller bundle means faster load times for your users, which can positively impact SEO and user experience.
How many developers use node-fetch vs undici?
Based on npm download statistics, Node-fetch has approximately 114.5M weekly downloads and Undici has approximately 58.1M weekly downloads. These numbers reflect package installations, not unique developers, but they indicate relative adoption levels.
Which is better maintained, node-fetch or undici?
Undici currently has the higher overall health score at 85/100. Node-fetch has a maintenance score of 20/100 and Undici scores 100/100 on maintenance.

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