nimbus

Nimbus

Give every agent its own computer. Instant, unlimited, POSIX-like sandboxes powered by Cloudflare’s network.

GitHub

Fresh 10 GB sandboxURL is shareableBoots in ~1s

inside your sandbox 
$ git clone https://github.com/you/your-app.git
$ cd your-app && npm install
$ npm run dev
  ➜  VITE ready — preview is live
nimbus — ~/app 

      

    


    
    

      

        

          Programmatic SDK
          
Run sandboxes from your own code.

          
Create a persistent Nimbus workspace, write a file, start a server, and hand the preview URL back to your user.

          

            Read SDK docs
            npm package
          

        


        

          

            
            
sdk-demo.ts

            TypeScript
          

          

            install
            npm install @nimbus-sh/sdk
          

          

            
    
              
  1. import { Nimbus } from '@nimbus-sh/sdk';
    2. 
              
    3. 
              
  3. export default {
    4. 
              
  4.   async fetch(req: Request, env: Env) {
    5. 
              
  5.     const endpoint = new URL(req.url).origin;
    6. 
              
  6.     const nimbus = Nimbus.fromEnv(env, { endpoint });
    7. 
              
  7.     const box = nimbus.sandbox('demo-app');
    8. 
              
    9. 
              
  9.     await box.files.write('/home/user/app.js', serverSource);
    10. 
              
  10.     await box.startProcess('PORT=3000 node app.js');
    11. 
              
  11.     const preview = await box.ports.expose(3000);
    12. 
              
    13. 
              
  13.     return Response.json({ previewUrl: preview.url });
    14. 
              
  14.   },
    15. 
              
  15. };
    16. 
            

          

          

            preview /s/demo-app/port/3000/
            runtime node
          

        

      

    


    
    

      
Everything a dev environment needs. Nothing you don’t.

      

        

          
real shell

          
60+ Unix commands. Pipes, redirects, jobs, globs, heredocs. Not a toy — a bash-compatible interpreter.

        

        

          
10 GB filesystem

          
Persistent SQLite VFS inside a Durable Object. Survives reloads, device changes, and hibernation.

        

        

          
npm + node

          
Production installer with content-addressed cache. Node.js runs in sandboxed V8 isolates.

        

        

          
git

          
Full isomorphic-git over the real network. Clone, branch, commit, push — same flows you know.

        

        

          
vite dev server

          
In-process HMR, Tailwind, React Router basename auto-injection, runtime error overlay. No local tooling.

        

        

          
shareable URLs

          
Every sandbox gets a human-readable URL. Send it to a teammate — they join the same session instantly.