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Comparison guide

Effect vs Ts-pattern

Side-by-side NPM package comparison

Quick Verdict

Smallest Bundle

Ts-pattern

2.6 KB gzipped

Most Popular

Effect

30.1M weekly downloads

Best Maintained

Effect

100/100 maintenance score

Highest Quality

Effect

80/100 quality score

Overall Pick

Effect

Best all-around based on popularity, size, maintenance & quality

  1. effect

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

    30.1M weekly downloads · 229.4 KB gzip · Health 92/100

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  2. ts-pattern

    The exhaustive Pattern Matching library for TypeScript.

    3.8M weekly downloads · 2.6 KB gzip · Health 92/100

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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 30.1M weekly downloads — roughly 7.8x more. Ts-pattern has 3.8M weekly downloads. Higher download counts generally indicate broader community adoption and a larger ecosystem of tutorials, plugins, and support.

Bundle Size

Ts-pattern has the smallest gzipped bundle at 2.6 KB. Effect comes in at 229.4 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 92/100 (excellent), with strong maintenance, quality, security, popularity scores. Ts-pattern has an overall health score of 92/100 (excellent), with strong maintenance, 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 massive community and ecosystem, actively maintained, strong security track record. Choose Ts-pattern if you value large community support, minimal bundle footprint, actively maintained, 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 (92/100), 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 92/100 while Ts-pattern scores 92/100. Effect has more recorded weekly downloads (30.1M). 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?
Ts-pattern has the smaller gzipped bundle at 2.6 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?
Effect has more recorded weekly downloads (30.1M). Download counts reflect package installations, not unique developers.
Which is better maintained, effect or ts-pattern?
Effect has a maintenance score of 100/100. Effect scores 100/100 and Ts-pattern scores 100/100 on maintenance.

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