CodeSandbox vs StackBlitz
CodeSandbox vs StackBlitz, compared side by side on 19 data points: what each one does, how big it is, what it has raised, the tech running each site, and what users report. We score both out of 100 on traction, team and visibility: CodeSandbox is on 50/100 and StackBlitz on 57/100.
Where each one leads
CodeSandbox
Leads on none of the measures we hold for both companies.
StackBlitz
- our overall score: 57/100 against 50/100
- agent readiness: 31/100 against 25/100
- funding raised: $113M against $15.2M
At a glance
| Measure | CodeSandbox | StackBlitz |
|---|---|---|
| What it is | Instant cloud development environments for coding, collaboration, and AI agent execution. | Browser-based IDE powered by WebContainers for instant web development environments. |
| Category | Developer Tools, Cloud Infrastructure, API Platform, Agentic AI | Developer Tools, Cloud Infrastructure, Web Development, IDE |
| Sells toBusiness model | Freemium | B2B |
| Offering | Platform | Platform |
| Founded | 2017 | 2017 |
| Headquarters | Amsterdam, Netherlands | Berlin, Germany |
| Status | Active | Active |
Size, funding and growth
| Measure | CodeSandbox | StackBlitz |
|---|---|---|
| Total funding | $15.2M | $113M |
| Latest round | Series A | Series B |
| Valuation | Not published | $700M |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | CodeSandbox | StackBlitz |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 50/100 | 57/100 |
| Traction | 36/100 | 40/100 |
| Team | 70/100 | 60/100 |
| Search visibility | 15/100 | 16/100 |
| Quality | 58/100 | 70/100 |
| Agent readinessHow well an AI agent can read and act on the site | F (25/100) | F (31/100) |
| Domain ratingLink authority, 0-100 | 86/100 | 83/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | CodeSandbox | StackBlitz |
|---|---|---|
| Hosting | Not detected | AWS |
| CDN | Cloudflare | Cloudflare |
| Frameworks | Next.js | Astro |
| Analytics | Not detected | Google Tag Manager |
| Open source | Yes | Yes |
CodeSandbox vs StackBlitz: common questions
Which is better, CodeSandbox or StackBlitz?
On our 0-100 score StackBlitz rates higher (57/100 against 50/100). The score weights traction, team, visibility and profile completeness, so it reflects company strength rather than which product suits you. We compare the two on 19 data points above: read the rows that match what you are buying for.
How do CodeSandbox and StackBlitz compare on the numbers?
StackBlitz leads on our overall score (57/100 against 50/100), agent readiness (31/100 against 25/100), funding raised ($113M against $15.2M).
Read the full CodeSandbox review and pricing or the StackBlitz review and pricing. You can also browse other CodeSandbox alternatives we track.