Sandbox
ELI5 — The Vibe Check
A sandbox is a safe, isolated play area where code can run without affecting anything real. Break things in the sandbox all you want — it can't escape and mess up production. Payment sandboxes let you test checkouts without charging real cards.
Real Talk
A sandbox is an isolated execution environment where code or processes run with restricted access to resources. Used for testing, security isolation, and development. Examples include payment test environments, browser iframes, containerised builds, and OS-level process isolation.
When You'll Hear This
"Test the webhook against the Stripe sandbox." / "Run untrusted code in a sandbox so it can't access the filesystem."
Related Terms
Deploy
Deploying is taking your code from your computer and making it live on the internet for real users. Before: only you can see it.
Localhost
Localhost is your computer pretending to be a web server just for you.
POC (POC)
A POC is a quick experiment to prove an idea can work before you spend months building it properly. It's the 'will this even work?' test.
Virtual Environment
A virtual environment is an isolated bubble for your Python project's packages.