This app converts text encoding of Persian (Farsi) or Arabic .srt subtitle files to UTF-8 so they can be used in almost every video player. The app is currently available on the Mac App Store: https://shaa.in/subfixerapp.
The dropped subtitle file(s) in the app will be loaded in a hidden webView using Windows-1256 encoding. After it completely loaded, the app saves the loaded document with UTF-8 encoding to a new location.
There are several areas to improve the application. Your contribution is so welcome. You may check the issues tab to find current issues and features requests. If you are a user of this app, feel free to add your ideas and/or findings.