In order to read tabs found on GTabs.org, You will need one of the following tools.

Guitar-Pro screenshot Guitar Pro is a multitrack tablature editor for guitar, banjo and bass. Besides writing scores, Guitar Pro is a useful resource for guitarists from beginner to experienced levels to progress, compose , or simply accompany themselves.

More information about Guitar-Pro here .

Download: Guitar-Pro (Commercial) ; DGuitar (Freeware)
Power Tabs screenshot Power Tab is a tablature authoring tool for the Windows operating system. It is intended to be used to create scores for the two most popular forms of tablature found on the Internet: guitar and bass.

More information about Power-Tab here .

Download: Power-Tab (Freeware)