Julian Knight's Library tagged library →  View Popular

"Closure Library is a powerful, low level JavaScript library designed for building complex and scalable web applications. It is used by many major Google web applications, such as Gmail and Google Docs."
"user interface widgets, an event framework, a packaging and dependency resolution system, tools for DOM manipulation, tools for creating animation effects (including drag and drop), communication utilities, a unit testing framework, and a wide variety of other packages."
Used internally my Google. See http://closure-library.googlecode.com/svn/trunk/closure/goog/docs/index.html for the list and docs.

There is also a "compiler" (in java) that shrinks code and checks for some common errors.

code.google.com/closure-library - Preview

development javascript library

"The missing UI library for the web". Tabs, Tooltips, overlay, expose, scrollable, flashembed.

flowplayer.org/index.html - Preview

javascript development jquery library

documentcloud.github.com/underscore - Preview

javascript development library

teethgrinder.co.uk/open-flash-chart - Preview

freeware development programming scripting html flash javascript library

raphaeljs.com - Preview

javascript graphics library programming scripting

an open-source platform for XML and RDF processing

4Suite allows users to take advantage of standard XML technologies rapidly and to develop and integrate Web-based applications. It also puts practical technologies for knowledge management projects in the hands of developers. It is implemented in Python with C extensions.

At the core of 4Suite is a library of integrated tools (including convenient command-line tools) for XML processing, implementing open technologies such as DOM, RDF, XSLT, XInclude, XPointer, XLink, XPath, XUpdate, RELAX NG, and XML/SGML Catalogs. Layered upon this is an XML and RDF data repository and server. The server supports multiple methods of data access, query, indexing, transformation, rich linking, and rules processing. It provides the data infrastructure of a full database management system, including transactions and concurrency support, access control and a variety of management tools. For purposes of integration with other tools, it supports remote, cross-platform and cross-language access through HTTP, RPC, and FTP. It also has APIs for Python and XSLT.

4suite.org/index.xhtml - Preview

development programming software library python xml

taffydb.com - Preview

javascript database programming library development scripting

www.aditus.nu/jpgraph - Preview

freeware development programming scripting php library graphics