I\'ve googled around but couldn\'t find a working MongoDB viewer or data browser.
An ideal (for my needs) tool would be a web based viewer with dead simple features
genghisapp is what you want.
It is a web-based GUI that is clean, light-weight, straight-forward, offers keyboard shortcuts, and works awesomely. It also supports GridFS.
Best of all, it's a single script!
To install it
$ gem install genghisapp bson_ext
(bson_ext is optional but will greatly improve the performance of the gui)
To run it (this will automatically open your web browser and navigate to the app as well)
genghisapp
To stop it
genghisapp --kill