Robomongo is a shell-centric, cross-platform, open-source MongoDB-management tool (i.e., admin GUI).
Full Power of MongoDB Shell
Robomongo 0.8.x embeds the same JavaScript engine (based on Mozilla SpiderMonkey) that powers MongoDB's v2.2 mongo shell. It means that you can reuse your existing skills of MongoDB shell in Robomongo! Robomongo provides you with syntax highlighting, autocompletion, different view modes (text, tree, custom), and more.
Multiple Shells
Open as many shells as you need. Every tab in Robomongo -- is a MongoDB shell, fully isolated from each other. You can have many opened shells for single MongoDB database, or many shells for many different databases.
Multiple Results
Robomongo executes your code in statement by statement way. That means that you will receive as a result for each statement you have. This feature can assist you, for instance, when you would like to view and analyse documents side by side.
Autocompletion
Robomongo provides you with autocompletion for all objects (and thus functions) that are known by the JavaScript runtime, including autocompletion for databases, collections, and even your document objects. To assist Robomongo autocompletion -- execute your code. This will make your objects available to JavaScript runtime, and autocompletion will work even for your custom functions and documents.