esm.run vs esm.sh: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for esm.run and esm.sh side by side. This page compares data; it is not a hands-on review.
On the data: On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
esm.run
Load modern JavaScript packages on-demand with global CDN performance.
Best for you if:
- • You want simplifies JavaScript module loading without a build step
esm.sh
Serve NPM packages as modern ES modules directly in browsers and Deno, no build tools needed.
Best for you if:
- • You want simplifies modern web development by removing build steps
| At a Glance | esm.run | esm.sh |
|---|---|---|
Starts at | Free 100% free | Free 100% free |
Category | Developer Tools Hosting & Deployment | CDN Hosting & Deployment |
Rating | 4.3/5 SourceForge 4.3 67 reviews | n/a |
Free plan | Yes | Yes |
Choose esm.run or esm.sh?
Choose esm.run if
- You want simplifies JavaScript module loading without a build step
- You want ensures high performance and uptime globally
- You work in developer tools, not CDN
Choose esm.sh if
- You want simplifies modern web development by removing build steps
- You want provides direct access to a vast ecosystem of NPM packages
- You work in CDN, not developer tools
In-Depth Analysis
esm.run
Load modern JavaScript packages on-demand with global CDN performance.
The pricing for esm.run is exceptionally generous as it offers a fully-featured CDN for JavaScript modules completely free of charge.
Strengths
- Pro: Simplifies JavaScript module loading without a build step
- Pro: Ensures high performance and uptime globally
- Pro: Utilizes advanced web delivery optimizations
- Pro: Suitable for quick demos and prototyping
- Pro: Free to use
Weaknesses
- Con: Currently in beta for production use
- Con: Limited information available on the website beyond core functionality
Key features
esm.sh
Serve NPM packages as modern ES modules directly in browsers and Deno, no build tools needed.
Strengths
- Pro: Simplifies modern web development by removing build steps
- Pro: Provides direct access to a vast ecosystem of NPM packages
- Pro: Optimizes performance through bundling and tree shaking options
- Pro: Supports various module registries for flexibility
Weaknesses
- Con: Reliance on an external CDN for module delivery
- Con: URL-based configuration can become lengthy for complex setups
- Con: Potential for issues if CDN experiences downtime or performance degradation
Key features
Plans and prices: esm.run vs esm.sh
| Tool | Plans and prices | Source |
|---|---|---|
| esm.run |
| esm.run read Sep 30, 2026 |
| esm.sh | No plan prices on file | esm.sh/pricing |
Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on esm.run pricing and esm.sh pricing.
Key Takeaways
esm.run
- Choose if you want load modern JavaScript packages on-demand with global CDN performance
esm.sh
- Choose if you want serve NPM packages as modern ES modules directly in browsers and Deno, no build tools needed
What the data shows
On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
- Only esm.run has a published user rating (4.3/5 from 67 reviews); esm.sh has none we can show.
- Both have a free plan.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
Frequently Asked Questions
How do esm.run and esm.sh compare in 2026?
On the data below the two are close or not directly comparable, so we do not name a winner for this pair. Only esm.run has a published user rating (4.3/5 from 67 reviews); esm.sh has none we can show. Both have a free plan.
What are esm.run and esm.sh used for?
esm.run: Load modern JavaScript packages on-demand with global CDN performance. esm.sh: Serve NPM packages as modern ES modules directly in browsers and Deno, no build tools needed.
What does esm.run cost vs esm.sh?
esm.run is free. esm.sh is free. Prices read on the vendors' pricing pages, latest check Sep 30, 2026.
What's the main difference between esm.run and esm.sh?
esm.run's main strength: simplifies JavaScript module loading without a build step. esm.sh's main strength: simplifies modern web development by removing build steps.