Partitioning your hard drive isn't something you do every day, but having the right tool can make it so much easier when you do.
Although a free version is available, I use MiniTool Partition Wizard Pro - Ultimate: MiniTool.
Are there alternatives? Yes, but a free partition manager of this calibre is hard to beat. Why did I pay for the Ultimate version if the free version is so good? It is the least we can do to ensure continued support and development for future versions.