Bevel Curve Tools
Blender addons that helps you with creating and maintaining beveled curve.
This addon works on both Blender 2.79 and Blender 2.80.
It will gives you warning if you try to enable it on Blender 2.79, but it will works just fine.
Blender 2.79: View 3D > Tool Shelf > Curve
Blender 2.80 or greater: View 3D > Sidebar > Curve