jFrets

This project aims to create a guitar training and tab writing software. It displays the note/chord and plays the sounds as well. The user can also create their own songs by using the graphical neck to select the notes, and they are translated into guitar tablature. You can create songs by creating song parts and add the note names to the parts. You them just add the parts to create a song.

Source: https://jfrets.dev.java.net/

Power Tab

Power Tab Editor is a tablature authoring tool for the Windows operating system. It is intended to be used to create guitar sheet music, more commonly known to musicians as guitar tablature and bass tablature. (aka guitar tab/bass tab). The program provides the most commonly used symbols in tablature, including chord names, chord diagrams, rhythm slashes, bends, slides, hammer-ons/pull-offs, harmonics and palm muting. A useful piece of software for people who want to learn how to play guitar, and for experienced guitarists who want to transcribe their own music and/or guitar lessons. The software can be used by both acoustic and electric guitar players alike.

Link