OpenDict is described as 'It supports popular computer dictionary formats including Slowo and Mova. It also acts as a client for DICT servers. OpenDict has plugin subsystem which lets create usable dictionaries from almost any data source' and is a Dictionary in the education & reference category. There are seven alternatives to OpenDict for a variety of platforms, including Mac, Linux, Android, Self-Hosted and Flathub apps. The best OpenDict alternative is GoldenDict, which is both free and Open Source. Other great apps like OpenDict are Apple Dictionary, SilverDict, Longman English Dictionary Online and dictd.