85
ExcellentTypescript bindings for langchain
- Weekly Downloads
- 2.1M
↓9%
- Bundle (gzip)
- 99.0 KB
- Updated
- Vulns
- 0
Health Score Breakdown
Maintenance
100
Popularity
100
Quality
50
Security
100
Stability
70
Comparison guide
Langchain vs Mastra
Side-by-side NPM package comparison
Quick Verdict
Smallest Bundle
Langchain
99.0 KB gzipped
Most Popular
Langchain
2.1M weekly downloads
Best Maintained
Langchain
100/100 maintenance score
Highest Quality
Mastra
80/100 quality score
Overall Pick
Langchain
Best all-around based on popularity, size, maintenance & quality
88
Excellentcli for mastra
- Weekly Downloads
- 406.8K
↑22%
- Bundle (gzip)
- 6.0 MB
- Updated
- Vulns
- 0
Health Score Breakdown
Maintenance
100
Popularity
80
Quality
80
Security
100
Stability
70
Choosing between Langchain and Mastra? 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
Langchain leads with 2.1M weekly downloads — roughly 5.2x more. Mastra has 406.8K weekly downloads. Higher download counts generally indicate broader community adoption and a larger ecosystem of tutorials, plugins, and support.
Bundle Size
Langchain has the smallest gzipped bundle at 99.0 KB. Mastra comes in at 6.0 MB. A smaller bundle size means faster page loads, which improves user experience and Core Web Vitals scores.
Health Score Comparison
Mastra has an overall health score of 88/100 (very good), with strong maintenance, quality, security, popularity scores. Langchain has an overall health score of 85/100 (very good), with strong maintenance, security, popularity scores. Health scores are calculated from maintenance activity, code quality, security posture, popularity, and stability metrics.
When to Choose Each
Choose Langchain if you value large community support, actively maintained, strong security track record. Choose Mastra if you value actively maintained, strong security track record.
Our Verdict
Both Langchain and Mastra are solid choices for JavaScript development. Mastra has the edge in overall health score (88/100), 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 langchain better than mastra?
- It depends on your needs. Langchain has a health score of 85/100 while Mastra scores 88/100. Langchain has more weekly downloads (2.1M), 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, langchain or mastra?
- Langchain has the smaller gzipped bundle at 99.0 KB. A smaller bundle means faster load times for your users, which can positively impact SEO and user experience.
- How many developers use langchain vs mastra?
- Based on npm download statistics, Langchain has approximately 2.1M weekly downloads and Mastra has approximately 406.8K weekly downloads. These numbers reflect package installations, not unique developers, but they indicate relative adoption levels.
- Which is better maintained, langchain or mastra?
- Mastra currently has the higher overall health score at 88/100. Langchain has a maintenance score of 100/100 and Mastra scores 100/100 on maintenance.
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