ConceptBase is a multi-user deductive and object-oriented database system for metamodeling and method engineering. The system includes a graphical client that builds upon the logic-based features of the ConceptBase server. The data model is O-Telos.
ConceptBase is distributed under a FreeBSD-style copyright license.

cssed is a small developer editor and validator, that tries to ease the CSS editing. It features syntax highlighting, syntax validation, MDI notebook based interface, quick CSS properties and values insertion, auto-completion and dialog-based insertion of CSS complex values. Being a CSS editor, it's not limited to this language. cssed haved some support for HTML (with embbeded Javascript), XML, Javascript, Java, PHP, JSP, C, C++, Apache configuration files, .htaccess, Python, Perl, SQL, SH and other languages so it can serve quite well as multi-purpose editor.

RCUNIT is a robust C unit testing framework. Requiring only an ANSI compliant C compiler, RCUNIT is a highly portable unit testing tool.

Neptuner is a codebase management suite. It puts together a set of tools to simplify and enable easier maintenance of source code. The tool-suite includes programs for: browsing, commenting/review, reformatting, enforcing coding standards, beautification, generating unit-test/boilerplate code, refactoring etc.

The XML Benchmark Tool (XBT) is an XML performance measurement tool, provided freely by Intel. It provides a framework that allows a user to analyze the performance of various XML processing engines such as the Intel® XML Software Suite, and compare the results. The XML Benchmark Tool allows performance testing of XML parsing (SAX and DOM), XSLT, XML Schema validation, and XPath operations. It is also extendable, allowing a user to write their own drivers to test other XML processing engines. The XML Benchmark Tool is currently supporting IA-32 architecture or compatible platforms and runs on Windows* and Linux* operating systems. The framework allows the testing of Java* and C++ based XML processing engines

The AspNetSpell component provides international spell checking for your ASP.Net web forms. AspNetSpell is compatible with ASP.Net 1 and 2 (C# / VB.Net / J# / C++ .Net). The code it delivers is W3C HTML and XHTML compliant, and has a good degree of accessibility.

Notepad++ is a free source code editor and Notepad replacement that supports several languages. It runs in the MS Windows environment.

FeedForDev VCL Control and ActiveX components makes it simple to communicate with users from within your software application! Integrate components into your application, to communicate with users. Use standard RSS feeds and provide users. All you have to do is add the FeedForDev component to your existing project. Set the URL to your RSS feed, and let it do the rest. You can then ask the control for types of information from your RSS feed. Send sales messages, tech support tips and notify users of new releases and product launches.

nsiqcppstyle is aiming to provide the extensible / easy use / highly maintainable coding style checker for C/C++ source code. Rules and analysis engine are seperated and users can develop own C/C++ coding style rule. Furthermore, there is customizable rule server(Google App Engine or dJango based) as well.

Leap SE is a CASE tool that turns system requirements directly into object models for software development. More than a Requirements Management application, Leap SE shortens the systems development lifecycle and accelerates rapid application development (RAD).