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Effect vs Ts-pattern

Side-by-side NPM package comparison

effect

Very Popular

Version 3.19.19

85
Excellent

The missing standard library for TypeScript, for writing production-grade software.

Weekly Downloads
7.2M
2%Stable
Bundle (gzip)
1.5 KB
Updated
Vulns
0

Health Score Breakdown

Maintenance
100
Popularity
100
Quality
50
Security
100
Stability
70

ts-pattern

Very Popular

Version 5.9.0

80
Excellent

The exhaustive Pattern Matching library for TypeScript.

Weekly Downloads
3.3M
↑41%
Bundle (gzip)
132.5 KB
Updated
Vulns
0

Health Score Breakdown

Maintenance
60
Popularity
100
Quality
80
Security
100
Stability
70

Choosing between Effect and Ts-pattern? 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

Effect leads with 7.2M weekly downloads — roughly 2.2x more. Ts-pattern has 3.3M weekly downloads. Higher download counts generally indicate broader community adoption and a larger ecosystem of tutorials, plugins, and support.

Bundle Size

Effect has the smallest gzipped bundle at 1.5 KB. Ts-pattern comes in at 132.5 KB. A smaller bundle size means faster page loads, which improves user experience and Core Web Vitals scores.

Health Score Comparison

Effect has an overall health score of 85/100 (very good), with strong maintenance, security, popularity scores. Ts-pattern has an overall health score of 80/100 (very good), with strong quality, security, popularity scores. Health scores are calculated from maintenance activity, code quality, security posture, popularity, and stability metrics.

When to Choose Each

Choose Effect if you value large community support, minimal bundle footprint, actively maintained, strong security track record. Choose Ts-pattern if you value large community support, strong security track record.

Our Verdict

Both Effect and Ts-pattern are solid choices for JavaScript development. Effect 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 effect better than ts-pattern?
It depends on your needs. Effect has a health score of 85/100 while Ts-pattern scores 80/100. Effect has more weekly downloads (7.2M), 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, effect or ts-pattern?
Effect has the smaller gzipped bundle at 1.5 KB. A smaller bundle means faster load times for your users, which can positively impact SEO and user experience.
How many developers use effect vs ts-pattern?
Based on npm download statistics, Effect has approximately 7.2M weekly downloads and Ts-pattern has approximately 3.3M weekly downloads. These numbers reflect package installations, not unique developers, but they indicate relative adoption levels.
Which is better maintained, effect or ts-pattern?
Effect currently has the higher overall health score at 85/100. Effect has a maintenance score of 100/100 and Ts-pattern scores 60/100 on maintenance.

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