CodeSandbox
Free, instant, collaborative sandboxes for rapid web development.
StackBlitz
StackBlitz is an instant fullstack web IDE for the JavaScript ecosystem.
Updated February 2026
| CodeSandbox | StackBlitz | |
|---|---|---|
| Rating | 5.0★ | 5.0★ |
| Reviews | 10 | 5 |
| Pros | 8 | 4 |
| FactScore™ | 52.1 | 38.9 |
FactScore™ Comparison
FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.
Pros & Cons
Only in CodeSandbox — Pros
Fast performance Sandpack library Code sharing Live code editing No setup required Open source Responsive support teamBoth tools — Pros
Browser-based developmentOnly in StackBlitz — Pros
Debugging in browser Next.js support Proof of conceptOnly in CodeSandbox — Cons
Buggy Read-only limitationsBoth tools — Cons
—Only in StackBlitz — Cons
Pro subscription issues Support responseDetails
| CodeSandbox | StackBlitz | |
|---|---|---|
| Categories | Team collaboration software, Code editors, Cloud Computing Platforms | Code editors, Cloud Computing Platforms |
| Platforms | Web | Web |
| Became Popular | June 12, 2017 | August 4, 2017 |
| Website | codesandbox.io | stackblitz.com |
Who Should Pick Which?
Choose CodeSandbox if...
- Fast performance
- Sandpack library
- Code sharing
Choose StackBlitz if...
- Debugging in browser
- Next.js support
- Proof of concept
With a FactScore™ of 52.1 vs 38.9, CodeSandbox leads in community reception. CodeSandbox uniquely offers Fast performance and Sandpack library, while StackBlitz stands out for Debugging in browser and Next.js support.
What Users Say
CodeSandbox
The most crucial feature in Sketch2App is previewing and exporting the generated app and this wouldn't be possible without the Sandpack library recently launched by CodeSandbox team.
Live code, real fast! CodeSandbox powers our file uploader demos, giving users a seamless hands-on experience without setup hassle. Perfect for showcasing live examples 💻⚡
Their SDK was key to powering our live previews and micro VMs, helped us move fast with a super responsive team behind it
StackBlitz
Hey StackBlitz team! StackBlitz is AMAZING!! the way you’re enabling developers to write, run, and debug code directly in the browser is truly incredible. I sent an email to Albert with some though...
The StackBlitz sandbox is amazing and allows users to run full Next.js 14 apps
StackBlitz and Bolt.new both helped me visualize the look and functionality of this product from early on.
Related Comparisons
Frequently Asked Questions
Which is better, CodeSandbox or StackBlitz?
Based on FactScore™, CodeSandbox leads with a score of 52.1 vs 38.9. CodeSandbox has a higher rating of 5.0★ compared to 5.0★.
What are the pros of CodeSandbox compared to StackBlitz?
CodeSandbox uniquely offers: Fast performance, Sandpack library, Code sharing, Live code editing, No setup required.
What are the pros of StackBlitz compared to CodeSandbox?
StackBlitz uniquely offers: Debugging in browser, Next.js support, Proof of concept.
Is CodeSandbox better rated than StackBlitz?
CodeSandbox is rated 5.0★ from 10 reviews. StackBlitz is rated 5.0★ from 5 reviews.
What is the FactScore™ of CodeSandbox and StackBlitz?
FactScore™ weighs rating and review volume together. CodeSandbox scores 52.1 and StackBlitz scores 38.9.
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