A Foochow Romanized keyboard/IME. 蜀隻平话字输入法。
Type the regular letters using your keyboard. Press the buttons to add diacritics, or use the following key combinations to add tones:
Alt+6: 33 (same tone as 2 in qilinbayin)
Alt+8: 5 (same diacritic as 1)
Alt+0: two dots under
Text will automatically save to local storage.