GUI Options like Mongo Compass, but Free and / or Open Source

I’m hoping some of you great Meteor folks can help me find a nice GUI based Mongo tool / toolset that gives information on performance, has some built in CRUD, and so on. I found Compass by the Mongo team which looks awesome, and a few others.

I’m just working on an open source project for free, so no money to invest in these tools right now.

Are there any options any of you can suggest that are free, open source, and fairly easy to setup and use?

I know, not asking for much right?

I’m editing this a bit, as I also want to ask, are there any good tutorials you guys can link to that cover sharding, replication in Mongo, particularly with respect to Meteor (if it’s different for any reason)?

I appreciate any input and help,