My Favourite IDE - aside.io

Here is article about web based IDE aside.io which I like the most

1) Login into aside with the Salesforce Credentials

2) APEX Class, trigger, Visualforce Page can be edited.

3) Debug logs can be checked and downloaded

4) Run the unit test on the test class and check the code coverage

5) Download the source code - classes, trigger, workflows etc.. 

6) Query the data in aside

7) Settings tab provide whole of handy things for aside to be used.