A stand-alone PHP-only library for parsing BBCode-like tags
FCKeditor (retired)
Detexter is an app designed to extract text from PDF files.
TextBlob is a Python library for processing textual data
a font chooser component for java.
a gui based property file editor in java. for java.
Extensible binary and text editor.
The Java text processor.
Trim Lines removes trailing whitespace from source code files
Simple math parsing library for C++