Now you can draw a schematics online using EDA tools it,s an easy to use .
1) Open The Link https://easyeda.com/editor
2) You can Create a new Project by clicking New Project button in the Upper corner.
3) You can modify your project by selecting Modify the Project.
The use of the EDA tool is very easy you can make any-kind of schematics before going to Solder it. if you dont like this so proteus is one of the Best offline Simulation software for Electronic Engineers Download it from Our Website by Double Clicking on Downloads Tab .