(Newcomer) Need local Windows server for JSON DB

Is MongoDB Atlas or Community appropriate as a local Window Service to provide JSON DB services to local PHP programs running in browsers? What are the capabilities of a free solution? I’ve tried looking through the documentation but just got lost. Don’t want to use a cloud solution due to security concerns for my clients. I’m an experienced software developer who prefers low-level solutions.

For a local, self hosted service you can use Community Edition or Enterprise Edition(if you pay for it).

Atlas is the DBaaS/Cloud offering from MongoDB.

I have downloaded and installed Community MongoDB as a service in Windows. I will take the MongoDB University course to learn about Mongo DB. Thanks.