Open Source Java Text Processing Software

OmegaT is a free and open source multiplatform Computer Assisted Translation tool with fuzzy matching, translation memory, keyword search, glossaries, and translation leveraging into updated projects.

A Swiss Army Knife GUI application for PDF documents: combine, split, rotate, reorder (n-up, booklet), watermark, edit bookmarks/fileinfo/pagetransition, compress, encrypt, decrypt, sign, repair, edit attachments and more.

Command-line/Ant-task/embeddable text file preprocessor. Macros, flow control, expressions. Recursive directory processing. Extensible in Java to display data from any data sources (as database). Can generate complete homepages (tree of HTML-s, images, etc.)

ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files. It's widely used to build languages, tools, and frameworks. From a grammar, ANTLR generates a parser that can build and walk parse trees. It’s widely used in academia and industry to build all sorts of languages, tools, and frameworks. Twitter search uses ANTLR for query parsing, with over 2 billion queries a day. The languages for Hive and Pig, the data warehouse and analysis systems for Hadoop, both use ANTLR. Lex Machina uses ANTLR for information extraction from legal texts. Oracle uses ANTLR within SQL Developer IDE and their migration tools. NetBeans IDE parses C++ with ANTLR. The HQL language in the Hibernate object-relational mapping framework is built with ANTLR.

Please note that project moved to GitHub: https://github.com/xmlark/xslthl This is an implementation of syntax highlighting as an extension module for XSLT processors (Xalan, Saxon), so if you have e.g. article about programming written in DocBook, code examples can be automatically syntax highlighted during the XSLT processing phase.

iText is an open-source PDF library available for Java and .NET (C#). iText allows you to effortlessly generate and manipulate standards-compliant PDF documents with a powerful and feature-rich SDK. With iText, you can create archivable and accessible PDFs, split and merge documents, fill and flatten forms, digitally sign documents, and more. iText add-ons enable additional functionality, such as PDF creation from HTML templates, secure redaction, OCR, and much more. The latest versions of iText build on the success of previous versions and feature an improved document engine, high and low-level programming capabilities, and a more efficient modular structure. iText represents the next level for developers looking to leverage PDF in document workflows. The main project page for iText is now on GitHub, and all the latest releases, code samples, open source add-ons and tools, etc. can be found at https://github.com/itext/.

Search and replace operations on file content accross multiple files. Recursive operations within entire directory trees. FAR comes with support for regular expressions (regex) over multiple lines, automatic backup and various character encodings. Run grep like extractions to condense or rearrange sources, or perform bulk file renaming.

ConcatPDF is the tool to concatenate PDF files. It can concatenate, extract, encrypt, decrypt, configure PDF files, convert image files to PDF. GUI version and CUI version are both available. iText.NET is iText porting on .NET Framework by J#. This library allows you to generate PDF, (X)HTML, XML, RTF files on Microsoft.NET Framework including ASP.NET.

Colorer provides source text syntax highlighting services. It colorizes source codes in editor systems (more than 200 syntaxes). Uses powerful HRC format(XML, RE, context free grammas), allowing to support any language. Available as Eclipse plugin.

Vrapper is an eclipse plugin which acts as a wrapper for existing eclipse text editors to provide a Vim-like input scheme for moving around and editing text. Eclipse Update Site: http://vrapper.sourceforge.net/update-site/stable

Jaxe is a free Java XML editor with a configurable GUI, using XML schemas for validation and XSL for exports in HTML or XML.

The DITA Open Toolkit is an implementation of the OASIS DITA XML Specification. The Toolkit transforms DITA content into many deliverable formats. See https://www.dita-ot.org/ for documentation and links to downloads. The source code and issue trackers have been moved to https://github.com/dita-ot/dita-ot

FCKeditor is the previous version of CKEditor and has been discontinued after version 2. The new CKEditor is redesigned from the ground up, offering more WYSIWYG text editing features, enhanced security and better integration. Don’t force yourself with retro FCKeditor. Switch to the new, cool CKEditor at ckeditor.com

ChordSmith is a chordpro editor that can display, transpose and print song sheets containing chords and lyrics. It can also edit and convert song sheet formats (including Harmonica tabs) between chordpro format (chords in square brackets in line with lyrics) and two-line format (chords above lyrics). You can find many free sources of song sheets in both formats on the Internet. More information at https://chordsmith.sourceforge.io/ Here are just a few of ChordSmith's many features:

Anaphraseus is a CAT (Computer Aided Translation) tool, OpenOffice.org 2-3 macro set for OpenOffice/LibreOffice Writer similar to famous Wordfast. It works with the Wordfast Translation Memory format (*.TXT), and supports text segmentation.

JSesh is an ancient Egyptian hieroglyphic text processor, currently used by professionnals and amateurs alike. It runs on all platforms supporting java (Mac, Windows, Linux). It can be used as a library for your own softwares too. SOURCES HAVE MOVED TO GITHUB: https://github.com/rosmord/jsesh

ADAPRO is a free-to-use word processor geared towards individuals with a learning difficulty like dyslexia or a developmental disorder such as autism. Its adapted, seamless and configurable interface provides a simplified environment that can be relied, fostering the user's sustained attention. It can be downloaded and used completely free of charge for any purpose. Supports English, Spanish and Portuguese. If Java 6 or higher is already present on the computer, it does not even require installation. This project has been part-funded by the European Regional Development Fund under the PCT-MAC 2007-2013 programme.

Early Access iText, a PDF generation library in Java

PDFBox is a Java PDF Library. This project will allow access to all of the components in a PDF document. More PDF manipulation features will be added as the project matures. This ships with a utility to take a PDF document and output a text file.

Jericho HTML Parser is a java library allowing analysis and manipulation of parts of an HTML document, including server-side tags, while reproducing verbatim any unrecognised or invalid HTML.

Regular Expressions (aka regex, regexp) made easy. This simple tool manipulates text with regular expressions. Highlighting of regular expression results. See the real power of regex! Use Scala to do manipulate your search results even more.

JODReports is a solution for generating dynamic documents and reports in Java based on the OpenDocument format (ODF). Templates can be easily composed with a word processor such as OpenOffice.org Writer. Data sources include POJOs and XML.

RTextDoc is an editor for structured text documents such as LaTeX, AsciiDoc, DocBook. RTextDoc has proofreading capabilities: on-the-fly spelling, instant grammar checking and built-in free dictionaries. RTextDoc has syntax highlighting, bracket matching, folding, document structure browser for sections and labels, bookmarks, manager for LaTeX symbols, an editor for mathematical equations,integrated BibTeX database manager and several tools to convert LaTeX to HTML and back. AsciiDoc files can be converted to DocBook, HTML and PDF files.

The Text Trix editor is an open-source, cross-platform text editor with a mind for user-friendly file and text navigation. See our new GitHub home for the latest and greatest Text Trix development: https://github.com/the4thchild/texttrix