If you don't know it yet, Atlas is the Cloud solution to host your Mongo database.
It's dead simple to set up, and the team behind MongoDB makes it. So it's a pretty reliable solution when you're looking to host your database.
And the best part is that you can start for free and pay as you grow!

Robo 3T is a powerful MongoDB GUI that allows you to visualize, create, update/patch & delete documents. Connected to Atlas, you can easily maintain and manage your collections & documents.

If you already have a Cluster ready, feel free to go to the second part of this article.

First - Let's create and set up our first Atlas Cluster.
A Cluster is like a server. It's your personal space where your whole MongoDB ecosystem lives.

To create a free Cluster, we'll need :
1 - To create an Atlas account and to choose the right Cluster
2 - To create an admin user, a super-user that can access all your Collections
3 - To add your IP address in the Allowed list
4 - and finally, create some "dummy" collections, for demo purpose

1 - Create an Atlas account https://www.mongodb.com/cloud/atlas

(Atlas Server Setup)[https://i.imgur.com/jYOug1g.png]

2 - You made it! Your Cluster is now ready to be set up
Create an admin user

3 - You now have an Admin user that can access all your Cluster's collections. Time to add your IP address to the Allowed list

4 - Your Cluster is ready to get Collections! Let's load some sample Collections data.

Second - Now that everything is ready, we can connect Robo3T to our Cluster.

To do that, we'll need:
1 - to copy the Replica set
2 - to create a new connection into Robo3T

1 - let's copy our replica set

Click on your Clusters name

Go to your replica set

Copy all the replica

2 - Download https://robomongo.org/ and open it.

Click on "create."

Once set up, double click on your connection. You're now connected to your Cluster!