Powerful dev containers.
Improve predictability and team efficiency with limitless, standardized dev containers.


Set up once,
reuse forever.
Configure a dev environment for every branch once, and it automatically becomes available to everyone.

No surprises.
Get everyone using the same setup.
Improve predictability
Provide everyone with the same powerful setup and ensure an identical experience from any device.
Efficient onboarding
With no setup needed, new team members can just checkout and start working on your codebase.
Automate team tasks
Set up powerful tasks and automations for lint, preview, build, terminals, database servers and much more.
microVMs
Unleash the power of the cloud.
Save 5+ hours per week per developer.
microVMs
Give every developer a powerful microVM that outperforms any laptop and ensures consistency.
Code always ready
Open any environment with a click and it will resume in 2 seconds. This cuts onboarding time by 90%.
Virtually limitless
Use the built-in Docker support to run anything: servers, databases, microservices, and much more.
Faster Code Reviews
A live dev environment for every PR.


CodeSandbox GitHub App
We provision always-running environments for every PR, making it easy for anyone to open it and immediately start reviewing your code, no setup needed.
Editable deployment previews
By clicking a URL, anyone in your team can preview your code, leave comments, and approve the PR with a click.
Add databases and servers
Because we run Docker, you can configure your database to run in CodeSandbox. This way, you have a unique database for every pull request and every branch.
Private, reliable, secure.
We found this technology to be the best on the market today to sustain a very high load of requests and appreciate the unique support from the team behind it.

It dramatically improved my experience of sharing ideas.

It feels much more like my local environment.

Many reasons to start now.
Collaborate with anyone
Collaborate asynchronously using comments or host live sessions to code together and guide anyone through your code.
Save hours reviewing PRs
Review PRs in record time with our editable deployment previews.
Create dev containers
Get your whole dev team using fast, standardized dev environments.
Use our GitHub App
Get a live dev environment for every PR, powered by our powerful microVMs.
Brancheable databases
Test schema changes inside a PR without having to roll back or migrate in your own development environment.
Join the future of building
Start for free