Open Source Java Documentation Software

Doxygen is a JavaDoc like documentation system for C++, C, Java and IDL.

PlantUml allows to quickly create some UML diagram using a simple textual description language.

Free video screencam tutorials for Eclipse and Java. Includes "Eclipse and Java for Total Beginners", "Using the Eclipse Workbench", "Introducing Persistence", and "Using the Debugger". Intended for beginning and intermediate users and programmer. You can view the Total Beginners tutorials on Youtube at https://www.youtube.com/playlist?list=PLv6UtFrA7VEu4PtzJaGHHSeZBi6mdJtwv. You can read descriptions and download all of the tutorials at http://eclipsetutorial.sourceforge.net.

With 50+ client generators, you can easily generate code to interact with any server which exposes an OpenAPI document. Maintainers of APIs may also automatically generate and distribute clients as part of official SDKs. Each client supports different options and features, but all templates can be replaced with your own Mustache-based templates. Getting started with server development can be tough, especially if you're evaluating technologies. We can reduce the burden when you bring your own OpenAPI document. Some generators support Inversion of Control, allowing you to iterate on design via your OpenAPI document without worrying about blowing away your entire domain layer when you regenerate code. Ever wanted to iteratively design a MySQL database, but writing table declarations was too tedious? OpenAPI documents allow you to convert the metadata about your API into some other format.

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

Java provides the concurrent library that simplifies concurrent programming, but this is hard to learn and visualize. This project is a series of animations each illustrating the coding and usage of a component in the java concurrent library.

Requirements management tool designed to achieve full SDLC traceability for features, requirements, design, implementation and testing. UI for requirements derivation, version control, attributes etc. Upgrade path also available at https://sourceforge.net/projects/nimble

A fast and reliable tool, written in Java 8, for generating professional UML sequence diagrams from text. Supports actors, con-/destructors, threads, broadcasts, notes, and fragments. Can serve as a Javadoc taglet. Exports PDF, (E)PS, SVG, PNG, ... The source code is hosted at http://github.com/sdedit/sdedit

CatMDEdit is a metadata editor tool for describing resources, mainly geographic information. Developed by IAAA (University of Zaragoza) and GeoSpatiumLab S.L., sponsored by IGN Spain. Technical details: Java, XML, multiplatform, multilingual.

SonicReader is used to view and save reports of the internals of a Sonicwall Configuration file. This is useful for those people that wish to know the settings within their saved Sonicwall Configs. I have no affiliation with Dell Sonicwall. Please do not contact Dell Sonicwall regarding the use of this program.

StatSVN is a metrics-analysis tool for charting software evolution through analysis of Subversion source repositories.

DEP4E integrates DocBook XML and DocBook XSL into Eclipse IDE to create, edit and process DocBook projects.

A reStructuredText editor plugin for Eclipse. This project aims to provide a good support for Sphinx documentation generation in the Eclipse IDE.

Piggydb is a flexible and scalable knowledge building platform that supports a heuristic or bottom-up approach to discover new concepts or ideas based on your input. You can begin with using it as a flexible outliner, diary or notebook, and as your database grows, Piggydb helps you to shape or elaborate your own knowledge. Piggydb is a Web application provided as a self-contained package that contains a Web server and database engine. With Piggydb, you can create highly structured content by connecting knowledge fragments to each other to build a network structure, which is more flexible and expressive than a tree structure. Fragments can also be classified using hierarchical tags.

Docmenta is a Java web-application for single source publishing and help authoring. The application allows collaborative creation of documentation, e-books and online-help. Supported output formats are PDF, HTML, WebHelp, EPUB (eBook) and DocBook. For more information, visit: http://www.docmenta.org

DEFT, the Development Environment For Tutorials, allows you to easily write and maintain tutorials which contain source code examples. If the code you're documenting changes, your examples in the tutorial will change as well.

This Java application serves to transform W3C XML Schema instances into interactive diagrams in SVG format. The diagram represents structure of XML files and provides information about individual items – elements and attributes.

An Eclipse plugin for the APT (Almost Plain Text) format. Accelerates documentation by generating a formatted version of a (almost) plain text file.

JDiff is a Javadoc doclet which emits an HTML report of all the packages, classes, methods, and so on, which are different (the "diff" part) when two Java APIs are compared. Great for reporting what has changed between two releases of your product.

Experimental browser that natively supports HTML, PDF, man pages, TeX DVI, scanned paper. Annotate with hyperlinks, highlights, notes, executable copy editor markup. [PDF tools for compress, impose, decrypt/encrypt, split/merge have been moved.]

CSSToXSLFO is a conversion utility from CSS2 to XSL-FO, which can be converted to PDF, PostScript, etc. It has special support for XHTML. The tool has a number of page-related CSS extensions. It comes with an API in the form of an XML filter.

The DITA Open Platform is a free, open-source project which goal is to provide an enterprise platform for the edition, management and processing of DITA documents.

The Tag Cloud Maker application allows the specification of a source folder containing files that are parsed and the words counted and displayed in an HTML word tag cloud.

PlantUml Dependency allows to parse / reverse engineering source files (only Java is supported by now) to generate a PlantUml description, allowing to draw the UML class diagram associated to the source code.

XML related tools: xsddoc (documentation tool for W3C XML Schema), xsddoc maven plugin, swing: JXTable (JTable with frozen columns)