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Comparison guide

Auth0 vs Clerk

Side-by-side NPM package comparison

Hero image for Auth0 vs Clerk

Quick Verdict

Smallest Bundle

Clerk

2.3 KB gzipped

Most Popular

Auth0

0 weekly downloads

Best Maintained

Auth0

100/100 maintenance score

Highest Quality

Auth0

50/100 quality score

Overall Pick

Clerk

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

auth0 icon

auth0

Niche

Version 6.3.0

0
67
Good

Auth0 Node.js SDK for the Management API v2.

Weekly Downloads
0

Trend data unavailable

Bundle (gzip)
77.8 KB
Updated
Vulns
0

Health Score Breakdown

Maintenance
100
Popularity
10
Quality
50
Security
100
Stability
70
clerk icon

clerk

Niche

Version 3.2.0

0
67
Good

Clerk CLI

Weekly Downloads
0

Trend data unavailable

Bundle (gzip)
2.3 KB
Updated
Vulns
0

Health Score Breakdown

Maintenance
100
Popularity
10
Quality
50
Security
100
Stability
70

Choosing between Auth0 and Clerk? 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

Auth0 and Clerk both have 0 weekly downloads, indicating equal adoption in the ecosystem.

Bundle Size

Clerk has the smallest gzipped bundle at 2.3 KB. Auth0 comes in at 77.8 KB. A smaller bundle size means faster page loads, which improves user experience and Core Web Vitals scores.

Health Score Comparison

Auth0 has an overall health score of 67/100 (good), with strong maintenance, security scores. Clerk has an overall health score of 67/100 (good), with strong maintenance, security scores. Health scores are calculated from maintenance activity, code quality, security posture, popularity, and stability metrics.

When to Choose Each

Choose Auth0 if you value actively maintained, strong security track record. Choose Clerk if you value minimal bundle footprint, actively maintained, strong security track record.

Our Verdict

Both Auth0 and Clerk are solid choices for JavaScript development. Auth0 has the edge in overall health score (67/100), 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 auth0 better than clerk?
It depends on your needs. Auth0 has a health score of 67/100 while Clerk scores 67/100. Auth0 has more weekly downloads (0), 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, auth0 or clerk?
Clerk has the smaller gzipped bundle at 2.3 KB. A smaller bundle means faster load times for your users, which can positively impact SEO and user experience.
How many developers use auth0 vs clerk?
Based on npm download statistics, Auth0 has approximately 0 weekly downloads and Clerk has approximately 0 weekly downloads. These numbers reflect package installations, not unique developers, but they indicate relative adoption levels.
Which is better maintained, auth0 or clerk?
Auth0 currently has the higher overall health score at 67/100. Auth0 has a maintenance score of 100/100 and Clerk scores 100/100 on maintenance.

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One PDF: the best package for every category (ORMs, bundlers, auth, testing, state management). Used by 500+ devs. Free, updated monthly.