Freely available Unicode-based technologies in Java. Includes number format classes, calendar classes, string search and string processing classes. [Open Source, X license]

Components offering OCR capabilities. Can receive faxes and PDF files, or scan documents to extract business information from images. Site includes documentation and download option. [Commercial]

C-style printf with variable number of parameters for formatting strings in Java. [Free for non-commercial]

Webtrans: a document translation architecture in Java. Wiki: an application of Webtrans which is an editable website. [Open Source, LGPL]

A Java API for providing text-checking functionality (spell checkers, grammar checkers, style checkers) to Java programs. [Open source, LGPL].

Java spell checker component from Keyoti Software.

A syntax highlighting package designed for use in text editors. The default implementation will produce colored HTML files from source files. It currently supports Java, C/C++, and HTML. [Open Source, GPL]