Step - 1 : Download 4 files. and run speech.html file.
Step - 2 : Give microphone permission.
Step - 3 : Use voice typing and Voice Commands.you can use Sinhala , Tamil , English voice typing using this files.
If you get error like this please use another browser because Web Speech API doesn't support most of browsers.
Update v1.0.1
Added Google Search with serach command (Ex: If you say "search usd to lkr", the program will open a new tab and search usd to lkr in Google.)