Humongous offers the ability to seamlessly export your MongoDB collections into CSV or JSON files.
To get started, head to the collection you'd like to export. Click on the More button in the collection toolbar and then click on Export.
Once the export window pops up, pick a file format (CSV or JSON) and select the fields you'd like to include into the exported file.
Once you click on Export, you'll receive an email with a link pointing to your exported file right after it's been processed.