The Text Encoding Language Converter is a free Android app developed by Mochi Mochi that can decode and convert text files into the language of your choice. If you have ever opened a text file and found gibberish characters, it is likely that the file is using a charset that your app cannot read. This app can auto-detect the language and encoding of your text file and convert it to a readable format.

This app supports virtually all charsets through ICU4J, including GB18030, BIG5, and more. You can also choose to open the converted file in any app of your choice. The best part is that it can quickly convert large files without any issues.