If you’re creating or have already created a WordPress plugin, you can also use WordPress internationalization functions (i18n) to make it ready for translation into the native language of your plugin users.
I created a short video to get you started, with tips to ensure your output is properly escaped and how to handle things like HTML links with translatable text mixed in:
Want more detail on how to launch and grow your premium WordPress plugin? Check out the Making Pro Plugins course.