osis2epub is a a program that converts a Bible text stored in Open Scripture Information Standard (OSIS) format to an EPUB book. The resulting eBook can then be read on various eReaders or converted to another format. Conversion to a simple text format and to a collection of HTML files with an accompanying stylesheet and file list (for direct viewing or subsequent conversion) is also supported.
Klen-library is a program for creating electronic books. It consists of three modules, for editing books, reading books, and creating tests. It offers password protection of every book and the editing mode. The print function makes it self-sufficient, as it allows creation of books without using third-party text editors. It uses SQLite, so you don't have to install a database server. It can export to the XWB, HTML, TXT, PDF, PostScript, and RTF formats, and can import from XWB, HTML, and TXT.