Use a Hindi keyboard layout or input method
On Windows, add Hindi in Language settings and switch with Alt + Shift or Windows + Space
On Mac, add Hindi in Keyboard settings and switch input sources from the menu bar
On Android, enable Hindi keyboard in Gboard or your preferred keyboard app
On iPhone, add the Hindi keyboard in Settings > General > Keyboard > Keyboards
Type Hindi using transliteration if available, where you type English sounds and it converts to Hindi
Use an online Hindi typing tool if you do not want to install a keyboard
Learn the Devanagari script for direct typing
Practice common Hindi letters and words to improve speed
Copy and paste Hindi text if you only need occasional use