What is WebContainer API?
From interactive tutorials to full-blown IDEs, build instant, interactive coding experiences backed by WebContainers: the trusted, browser-based runtime from StackBlitz. Run Node.js in your browser with unmatched speed and no remote VMs involved.
Do you use WebContainer API?
![WebContainer API gallery image](https://ph-files.imgix.net/7384ae6e-6abe-469b-ac15-4efe2c89016b.png?auto=compress&codec=mozjpeg&cs=strip&auto=format&w=368&h=220&fit=max&frame=1)
![WebContainer API gallery image](https://ph-files.imgix.net/ffbd57da-f7eb-4bc2-9c57-a0ee3731fd6e.png?auto=compress&codec=mozjpeg&cs=strip&auto=format&w=368&h=220&fit=max&frame=1)
![WebContainer API gallery image](https://ph-files.imgix.net/723d928e-0802-4c85-bbef-305218d6ebec.png?auto=compress&codec=mozjpeg&cs=strip&auto=format&w=368&h=220&fit=max&frame=1)
Recent WebContainer API Launches
WebContainer API Alternatives
![Nimbus](https://ph-files.imgix.net/826c0198-6e29-40a2-87ff-ac25e3ef7b32.png?auto=compress&codec=mozjpeg&cs=strip&auto=format&w=32&h=32&fit=crop&frame=1)
Nimbus
12 reviews
Review WebContainer API?
5/5 based on 2 reviews
Maker reviews of WebContainer API
![Otto Engineer](https://ph-files.imgix.net/8adc03ad-56f4-4460-80cd-a13363707f53.png?auto=compress&codec=mozjpeg&cs=strip&auto=format&w=40&h=40&fit=crop&frame=1)
![Matt Granmoe](https://ph-avatars.imgix.net/6888414/original.png?auto=compress&codec=mozjpeg&cs=strip&auto=format&w=24&h=24&fit=crop&frame=1)
Otto runs entirely in the browser in an isolated environment with zero setup required thanks to web containers!
Reviews
•2 reviews
The WebContainers API by StackBlitz is a revolutionary technology that redefines browser-based development. Its ability to run Node.js natively inside the browser without relying on cloud VMs or local installations is groundbreaking. I was particularly impressed by its speed, spinning up entire development environments in milliseconds, and its seamless offline support. The feature to run servers directly in the browser using a virtualized TCP network stack offers unmatched convenience and significantly reduces latency, often outperforming localhost.
Security is another standout aspect. WebContainers execute all code within the browser's security sandbox, minimizing risks associated with localhost scraping or malicious actors. Additionally, the zero-footprint design ensures that no unnecessary files, such as node_modules, clog the local system, as each environment refreshes cleanly with just a page reload.
Beyond performance and security, its versatility for interactive coding, tutorials, and browser-based IDEs positions it as a game-changer for modern web development. Its compatibility with modern toolchains like Webpack and Vite, coupled with its cost-efficiency by eliminating server dependency, makes it ideal for scaling development workflows.
This API truly feels like the future of software development, blending desktop-grade capabilities into a browser experience. A big thank you to StackBlitz for pushing the boundaries of what's possible on the web!