For my Thai study, I have been using books from Paiboon Publishing: Thai For Beginnners by Benjawan Poomsan Becker. The book uses a scheme of Thai transliteration that is difficult to type in using keyboard because it uses some special characters for tone mark (such as mâi mai mai mǎi mai).
To make it easy for me when typing those characters (for example when creating a note for myself), I created a simple app that will allow me to type in the characters easily, for example to type: mâi, i jus type it as mai.
You can test the app here (online): http://yohan.es/thaithone/
Or to use it offline on your desktop, install this: http://yohan.es/files/ThaiToneMark-1.0.0.exe
Copyright © 2009-2018 Yohanes Nugroho