SlamData (http://slamdata.com) is open source and lets you perform analytics on data in MongoDB.

The 2.0 version will have data visualization baked in, but the current one doesn't have that just yet. :(

If you're okay with writing your own queries and some basic HTML, you could use something like d3.js to render graphs.

If you're looking for more of an Excel pivot table on your MongoDB, there's a category of enterprise software that does this basically called "analytics dashboards" or "business intelligence dashboards" like Pentaho or Jaspersoft (1st google results, not recommending necessarily).

Most of those products come with the associated enterprise price tag ("call for pricing"). I'm not aware of any free ones

Gotcha, yeah I found Pentaho and Jaspersoft (and RJ Metrics) all expensive enterprise solutions heh. May have to go the build my own route.

you could clearly build a small web app and use d3js. The cool thing here is you can get your data back in json format from mongo and d3js (or many other charting libraries) just work fine with json.

If you are a python person, this article might help

http://adilmoujahid.com/posts/2015/01/interactive-data-visua...