What are some alternatives?
When comparing karabiner-elements.pqrs.org Seil and xmodmap, you can also consider the following products
SharpKeys - SharpKeys is a utility that manages a Registry key that allows Windows to remap one key to any...
Key Remapper - Intended for remapping keys, mouse buttons and mouse wheel actions, Key Remapper allows you to:
X-Mouse Button Control - XMouse Button Control (XMBC) allows you to create application and window specific profiles.
Karabiner - Karabiner, previously called KeyRemap4MacBook, is a very powerful keyboard remapper for Mac OS X.
Key Manager - ATNSOFT Key Manager, Key Remapper, Text Paster
Stick Shift - Stick Shift saves you time by removing repetitive changes to hand position when programming.