This page catalogs truly open source software as defined below. Also see: Best Free Software for a page which combines this list with free proprietary software.

From the Free Software Foundation's Free Software Definition:

"Free software is a matter of liberty, not price. To understand the concept, you should think of free as in free speech, not as in free beer.

Free software is a matter of the users' freedom to run, copy, distribute, study, change and improve the software. More precisely, it refers to four kinds of freedom, for the users of the software:

• The freedom to run the program, for any purpose (freedom 0).
• The freedom to study how the program works, and adapt it to your needs (freedom 1). Access to the source code is a precondition for this.
• The freedom to redistribute copies so you can help your neighbor (freedom 2).
• The freedom to improve the program, and release your improvements to the public, so that the whole community benefits (freedom 3). Access to the source code is a precondition for this.

A program is free software if users have all of these freedoms. Thus, you should be free to redistribute copies, either with or without modifications, either gratis or charging a fee for distribution, to anyone anywhere. Being free to do these things means (among other things) that you do not have to ask or pay for permission."

For case study reports on implementing enterprise-wide open source solutions, see: COSN Open Technology Project.

Contents 1 AntiVirus Software 1.1 Clam 2 Anti-Spam Filtering 2.1 ASSP 3 Blog Servers 3.1 Drupal 4 Computer-Based Assessment 4.1 TCExam 5 Concept Mapping 5.1 Freeplane 5.2 FreeMind 5.3 CMap 6 Content Management Systems 6.1 opensourceCMS.com 6.2 See Also:Content Management Systems 7 CourseWare 8 Help desk software 9 Image Management/Editing 9.1 Gallery 9.2 TuxPaint 9.3 The GIMP 9.4 IrfanView 10 Internet Filtering 10.1 DansGuardian 11 Library Catalog Software 11.1 Koha 12 Math 12.1 GeoGebra 13 Miscellaneous 13.1 Grass GIS 13.2 NASA WorldWind 13.3 Open Source Mac 14 Network Managment & Monitoring 15 Office Suites 15.1 Open Office 15.2 Neo J Office 15.3 Zoho Online 16 Page Layout 16.1 Scribus 17 PDF Converters/Creators 17.1 PDF Creator 17.2 DocMorph 18 RSS Feed Compiler/Display 18.1 BlogLines 18.2 RSSBandit 18.3 RSS Owl 18.4 Vienna 18.5 BlogBridge 19 Sound Management/Editing 19.1 Audacity 20 Programming and 3D Modeling 20.1 Alice 20.2 FMSLogo 20.3 Blender 21 Web Authoring 21.1 NVU 22 Word Processors 22.1 AbiWord 22.2 OpenOffice 22.3 VoodooPad 23 Other Sites Which Catalog Free Software

AntiVirus SoftwareEdit

ClamEdit

Open source antivirus software (Win version at http://www.clamwin.com/) More on ClamAV

Anti-Spam FilteringEdit

ASSPEdit

Blog ServersEdit

DrupalEdit

See Blogging page for information.

Computer-Based AssessmentEdit

TCExamEdit

TCExam is a Computer Based Assessment (CBA) software system (also know as CBT - Computer Based Testing or e-exam) that enables educators and trainers to author, schedule, deliver, and report on surveys, quizzes, tests and exams.

Concept MappingEdit

FreeplaneEdit

A new fork of the classic FreeMind software. Runs on all platforms. Special feature is ability to view the map in an outline format.

FreeMindEdit

Powerful free concept-mapping softwar for Mac, Windows, and Linux. Great keyboard shortcuts to make the mapping process easy. Somewhat modeled after the commercial MindManager software from Mindjet. You can see screenshots here.

CMapEdit

Sophisticated concept mapping. Also allows users to collaborate on maps. Has a free server product as well.

Content Management SystemsEdit

opensourceCMS.comEdit

See Also:Content Management SystemsEdit

CourseWareEdit

See Course_Management_Systems for more information.

See Digital Video for more on this topic.

Help desk softwareEdit

See Help Desk Software

Image Management/EditingEdit

GalleryEdit

Upload, catalog, share images

TuxPaintEdit

Drawing & painting program like KidPix

The GIMPEdit

The GNU image manipulation program. Mac, Windows, Linux versions. Open source.

IrfanViewEdit

Internet FilteringEdit

DansGuardianEdit

Library Catalog SoftwareEdit

KohaEdit

Also See: Library Circulation and Catalog Software

MathEdit

GeoGebra Edit

GeoGebra is a free and multi-platform dynamic mathematics software for schools that joins geometry, algebra and calculus.

MiscellaneousEdit

Grass GISEdit

Geographic Information Systems

NASA WorldWindEdit

World Wind provides a rich set of features for displaying and interacting with geographic data and representing a wide range of geometric objects

Open Source MacEdit

A list of free open source software for OS X

Network Managment & MonitoringEdit

For discussion of network optimization, see Internet & Network Bandwidth & Monitoring & QOS

Office SuitesEdit

Open OfficeEdit

Neo J OfficeEdit

Zoho OnlineEdit

The OS X port of Open Office

Page LayoutEdit

ScribusEdit

PDF Converters/CreatorsEdit

PDF CreatorEdit

DocMorphEdit

Online conversion

RSS Feed Compiler/DisplayEdit

BlogLinesEdit

Easy way to collect content from sites offering RSS feeds. Also includes a blog. Completely web-based.

RSSBanditEdit

Includes advanced features like flagging items for follow-up, web search, tracking comments submitted.

RSS OwlEdit

Open souce, elegant RSS reader for Mac, Windows or Linux. Works with RSS, RDF and Atom feeds.

ViennaEdit

Great RSS reader for Mac's. Free, open source and reads RSS/Atom feeds. Has a built in web browser for when you click links. Smart folders available (like many Mac OS X programs) which can be programmed to show only certain groups at a time. Change styles with custom css'ing.

BlogBridgeEdit

Sound Management/EditingEdit

AudacityEdit

Powerful audio tool including ability to record, mix, export to MP3 and other formats.

Programming and 3D ModelingEdit

AliceEdit

Good intro-level programming

FMSLogoEdit

A modern implementation of the Logo programming language for kids, you can create animated GIFs with it or images like these: http://neoparaiso.com/logo/galeria-mswlogo.html

BlenderEdit

Web AuthoringEdit

NVUEdit

Similar functionality to FrontPage or Dreamweaver.

Word ProcessorsEdit

AbiWordEdit

compatible on all platforms.

OpenOfficeEdit

word processor, spreadsheet, drawing, database suite available for PCs. For Macs, use NeoOffice. For technical support for OpenOffice.org use Plan-B, specializing in non technical users.

VoodooPadEdit

Free demo version of a notepad that works just like a wiki. Paid version as well. Use it to create multiple links within the document or to pages on your hard drive or the web. Great note-taking resource for students. Macs only.

Other Sites Which Catalog Free SoftwareEdit

Freshmeat (http://www.freshmeat.net) - read the fine print for the type of license - includes software for all platforms

Sourceforge (http://sourceforge.net/) - all open source

Savannah (http://savannah.gnu.org/) - repository for GNU projects

Seul/Edu Educational Application Index (http://richtech.ca/seul/) - all open source

The KDE Edutainment Project (http://edu.kde.org/)

Edubuntu (http://www.edubuntu.org/) - Linux distribution geared to K-12 - "Edubuntu includes more than 16,000 pieces of software, but the core installation fits on a single CD. Edubuntu starts with the Linux kernel version 2.6 and Gnome 2.12, and covers every standard desktop application from word processing and spreadsheet applications, educational software (such as GCompris and the KDE education suite) to internet access applications, web server software, email software, programming languages and tools and of course several games."

Skolelinux (http://www.skolelinux.org/portal/) - a customized Debian distribution for schools

Educational Freeware(http://www.educational-freeware.com/) - lists free learning software for Windows.

Play Open Source Tux Games Online: (http://www.auntlee.com/kids/games_tux.html) Tux Typing, Super Tux!

Free Business Software: (http://www.businessbookmall.com/Free%20Business%20Software%20Internet%20Library.htm)

Free Software Tutorials: (http://www.businessbookmall.com/Software%20Tutorials%20Internet%20Library.htm)