1. Firefoxhttp://www.getfirefox.com/Replaces Internet ExplorerIf you haven’t switched to Firefox for your web browsing needs, do it now. It stops annoying popups and it has tons of amazing plugins that can make surfing the web even better. I could evangelize all day about Firefox, but one thing’s for sure: the first thing I do on any new Windows machine is run Internet Explorer just long enough to download Firefox.

2. Thunderbirdhttp://www.mozilla.org/thunderbird/Replaces Microsoft Outlook or EudoraThunderbird is an email client that has five big things going for it: it’s free, it’s full featured, it’s lightweight and runs quick, it has an unparalleled spam filter, and it protects you from those ridiculous phishing attacks by clearly indicating which emails send you to a bogus website. If you’re not already using a web-based email solution, Thunderbird should be your client.

3. Sunbirdhttp://www.mozilla.org/projects/calendar/sunbird/Replaces Microsoft Outlook’s calendaring functionsMight as well get the Mozilla trifecta out of the way by mentioning Sunbird, which is the Mozilla Foundation’s calendaring program. It’s extremely easy to use (I figured out everything I needed in a minute or two) and easy to share your calendar with others. I consider a calendaring tool to be essential if you’re using a laptop, and this is no different.

4. Abiwordhttp://www.abisource.com/Replaces Microsoft WordWant a good word processor but find Microsoft Word too expensive? AbiWord is my favorite replacement for Word. It’s lightweight (meaning it runs quickly) and includes pretty much every feature that I use regularly in a word processor, plus it can save files in formats that you can exchange with Word and WordPerfect users, plus open any of their files, too.

5. OpenOfficehttp://www.openoffice.org/Replaces Microsoft Excel and Microsoft PowerPointIf you want to replace the rest of the Office suite, your best bet is OpenOffice. It includes very nice replacements for Excel and PowerPoint (and workable replacements for Access

and other Office elements). In fact, I actually prefer their Excel and PowerPoint replacements to the real thing.

6. ClamWinhttp://www.clamwin.com/Replaces Norton AntiVirus or McAfeeClamWin is a slick anti-virus software that’s quite easy to manage and is unobtrusive while keep your system free of viruses. That’s pretty much all I want from a package, so why pay money for McAfee to keep bugging me all the time?

7. Gaimhttp://gaim.sourceforge.net/Replaces AIM, Windows Messenger, etc.This is a very clean instant messaging program that allows you to be on AOL Instant Messenger, Windows (MSN) Messenger, and Yahoo Messenger simultaneously with one program. There are other free packages that do this, but Gaim is stable and clean and simple.

8. BitTorrenthttp://www.bittorrent.com/Original but essentialFrom their website, “BitTorrent is a peer-assisted, digital content delivery platform that provides the fastest, most efficient means of distributing, discovering, and consuming large, high-quality files on the Web. Our mission is simple: to deliver the content that entertains and informs the digital world.” In other words, BitTorrent allows you to download large media files and also use your bandwidth to help others download these files. Search for media files you want and download ‘em.

9. GIMPShophttp://www.gimpshop.net/Replaces Adobe PhotoshopThis is a version of the GNU Image Manipulation Program that does a pretty solid job of imitating Adobe Photoshop – a regular user of Photoshop (like me) can adapt to it quite quickly. It’s very richly featured and runs quite well – in fact, I see no reason to ever go back, even if Photoshop were free.

10. Gnucleushttp://www.gnucleus.com/Gnucleus/Replaces LimeWire, BearShare, etc.Sure, LimeWire and BearShare are free, but why not just get the same basic software without all of the spyware? Gnucleus is pretty much identical to those software packages – but without all that extra junk that slows down your computer.

11. VLC Media Playerhttp://www.videolan.org/vlc/Replaces Windows Media Player, Quicktime, RealPlayer, etc.If you get tired of having tons of media players on your computer, get this package that runs pretty much every media type you’ll run across without breaking a sweat.

12. Juicehttp://juicereceiver.sourceforge.net/Unique but essentialJuice lets you effortlessly subscribe to podcasts, organize them, and listen to them at your convenience. In conjunction with PodNova, I find it easier to use Juice to organize podcasts than using iTunes itself.

13. Audacityhttp://audacity.sourceforge.net/Unique but essential (for some)If you’re interested in recording your own podcast (or just want to make your own voice recordings for whatever reason), Audacity and a microphone are pretty much all you need to get the job done. I’m not much for podcasting (let’s just say I don’t have a radio voice), but I use Audacity for other voice recording purposes.

14. RSSOwlhttp://www.rssowl.org/Unique but essentialRSSOwl is one of many open source RSS readers. In other words, it enables you to use one program to keep track of the content of a lot of different blogs; if you read a lot of blogs, it’s the only way to keep tabs on all of them without devoting hours jumping from site to site. If you have a laptop, it’s preferable to using sites like Bloglines, but if you’re on a desktop, a web-based feed manager might be better.

15. Filezillahttp://filezilla.sourceforge.net/Replaces WinFTPMany people occasionally have a need to FTP files to other computers; if you ever have the need to transfer files in such a fashion, FileZilla will do the job slickly and quickly.

16. Keynotehttp://www.tranglos.com/free/keynote.html

Unique but essentialKeynote is basically designed specifically for the task of taking notes on a laptop. If you ever find yourself in a meeting or a presentation with your laptop open and want to jot down notes and organize them just a bit, Keynote is unquestionably the program for you. It’s not good at quality word processing, but that’s not the point. In my professional work, I find myself using Keynote almost as often as any other utility.

17. MusikCubehttp://www.musikcube.com/Replaces iTunesIf you’re not already committed to downloaded music from the iTunes Music Store, then MusikCube is the best choice available for a music organizer and player. It organizes your mp3s, makes it really easy and really fast to find them, and allows you to make some incredibly clever smart playlists.

18. Handbrakehttp://handbrake.m0k.org/Unique but essentialHandbrake enables you to stick a DVD in your DVD drive and have the contents of that film stored to your hard drive in a form that can be read by pretty much any media player. I often use it to put a few movies on my laptop for travel purposes, so I don’t have to worry about keeping track of DVDs while on the road.

19. X-Chat 2http://www.silverex.org/Replaces mIRCX-Chat is a free IRC client. For those unfamiliar with IRC, it’s a place for technical people (and, as my wife loves to point out, nerds) to meet and discuss topics in an open environment. I often find it very useful when piecing through difficult technical issues.

20. KeePasshttp://keepass.sourceforge.net/Unique but essentialKeePass is a program that securely stores and manages the abundance of passwords we all use on a daily basis. I have literally hundreds of usernames and passwords spread out all over the place; KeePass keeps them all for me and keeps them safe.

21. TrueCrypthttp://www.truecrypt.org/Unique but essential

TrueCrypt enables you to convert a memory stick into a strongly encrypted data storage device, meaning that you can store personal data on it without worrying about losing it and having personal information get out and about. I use it to keep some of my most personal data off of my laptop and strongly secured, just in case.

22. PDFCreatorhttp://sourceforge.net/projects/pdfcreator/Replaces Adobe AcrobatPDFCreator creates a virtual printer on your computer that, if you print a document to it from any program, creates a PDF of that document that can be read on any computer with Acrobat Reader on it. After installing PDFCreator, all you have to do is print like normal and out comes a PDF!

23. Freemindhttp://freemind.sourceforge.net/Unique but EssentialFreemind is a “mind mapping” software program. In essence, it enables you to brainstorm and link together ideas quickly, creating “maps” of concepts similar to what you might do on a whiteboard. I find it incredibly useful when putting together ideas for new posts or planning small projects or assembling the backbone of a writing project.

24. NASA Worldwindhttp://worldwind.arc.nasa.gov/Replaces Google EarthWorldWind is very similar to Google Earth in that it allows you to browse the globe. While it isn’t strong for creating maps (but why not just use Google Mapsfor that?), it is utterly incredible for viewing three-dimensional landscapes of any place on earth.

25. Notepad2http://www.flos-freeware.ch/notepad2.htmlReplaces NotepadNotepad2 is a replacement for the traditional Windows Notepad that just adds a few sweet little features: multiple documents; line, word, and character counts; and some highlighting of tags. In fact, I’m using Notepad2 as I draft this post (after using Freemind to organize it).

26. HealthMonitorhttp://healthmonitor.zucchetti.com/Unique but usefulHealthMonitor enables you to keep an eye on the health of your computer. It identifies slowdowns and other system issues quickly and lets you know (for example, it gives a popup if your system memory gets to a certain percentage of fullness, or if your hard

drive has only 10 GB free). This can keep you out of trouble and also give you clues to problems your machine might be having.

27. Workravehttp://www.workrave.org/Unique but usefulSometimes late into a writing session, my wrists get sore from too much repetitive movement. Workrave basically jumps in before this happens and locks down the computer for a while, preventing me from working too much and causing repetitive stress injury. Since I’ve started using it, it hasn’t significantly hurt my productivity at all and my wrists are thanking me!

28. GanttPVhttp://www.pureviolet.net/ganttpv/Replaces Microsoft ProjectIf you do any project management (or have a need to dip your toes in the water), GanttPV does a brilliant job of managing the task quickly, easily, and freely. If you need to move to MS Project later, you can export from GanttPV to Project, but once you start digging into GanttPV, you’ll likely have no reason to use Project.

29. GnuCashhttp://www.gnucash.org/Replaces Microsoft Money or QuickenGnuCash is a slimmed-down version of the bloated Microsoft Money and Quicken packages, but it contains all of the features I want for managing my money. The interfaces are incredibly simple – it functions much like a checkbook ledger on your computer – but there’s a lot of meat hidden throughout the software.

30. True Combat: Elitehttp://www.truecombatelite.net/Replaces Quake IV, Halo, etc.After all this downloading, you’re going to need to blow off a little steam, and I’ve yet to find a more enjoyable free game than this one. It’s basically a third person combat game, but the graphics are spectacular and the game is quite engrossing.

If you’ve downloaded and installed all of these, you’ve got access to all the productivity software you’ll likely need, clean and open and best of all free.

Artificial intelligence[edit source | editbeta]

General

OpenCog  A project that aims to build an artificial general intelligence (AGI) framework. OpenCog Prime is a specific set of

interacting components designed to give rise to human-equivalent artificial general intelligence.

Computer Vision

AForge.NET  Computer Vision, Artificial Intelligence and Robotics library for the .NET Framework

OpenCV  Computer Vision Library in C++

Machine Learning

See Data Mining below

See R programming language—packages of statistical learning and analysis tools

Planning

TREX  Reactive planning

Robotics

ROS  Robot Operating System

CAD[edit source | editbeta]Main category: Free computer-aided design software

Electronic design automation (EDA)[edit source | editbeta]Main category: Free electronic design automation software

Computer simulation[edit source | editbeta]

Blender ; 3D modeling software written in Python and C++ that can make animations and games

SimPy ; queue-theoretic event-based simulator written in Python

flightgear  is an open source flight simulator written for windows,mac and linux.

Finance[edit source | editbeta]

Adempiere  — ERP Business Suite

Bitcoin  — Peer to peer decentralised digital currency.

Bonita Open Solution  — Business Process Management

bookyt  — Simple web-based Double-entry book-keeping software in Ruby on Rails

Compiere  — ERP solution automates accounting, supply chain, inventory and sales orders

Ebase  — Constituent relationship management developed especially for non-profit organizations

Frontaccounting  — web-based Double-entry book-keeping and ERP system

GnuCash  — Double-entry book-keeping

Grisbi  — Single-entry

HomeBank  — for personal use

jFin

JFire  — an ERP Business Suite written with Java and JDO

JGnash  — Java-based, double-entry book-keeping

JQuantLib  — Java-based Quantitative Finance API framework for financial instrument valuation and more...

KMyMoney  — Double-entry book-keeping

LedgerSMB  — Double-entry book-keeping

MibianLib  — Options pricing library written in python

Mifos  — Microfinance Institution management software

Octopus Micro Finance Suite  — Microfinance Institution management software

Openbravo

OpenERP  — ERP system

OrangeHRM  — Commercial Human Resource Management

Postbooks  — Integrated Accounting and ERP Business Suite

QuickFIX  — FIX protocol engine written in C++ with additional C#, Ruby, and Python wrappers

QuickFIX/J  — FIX protocol engine written in Java

ReOS  — Web-based real estate listing management application

SQL Ledger  — Double-entry book-keeping

SugarCRM  — Commercial Customer Relationship Management

Tryton

TurboCASH  — Double-entry book-keeping for Windows

vtiger CRM  — Customer Relationship Management(CRM) software with Sales force automation, marketing management,Customer

Service/Support,Inventory Management

WebERP  — web-based ERP system

See also: Comparison of accounting software

Integrated Library System[edit source | editbeta]

Evergreen

Koha

NewGenLib

OpenBiblio

PMB

refbase  — Web-based institutional repository and reference management software

Image editor[edit source | editbeta]

GIMP  — GNU Image Manipulation Program

Mathematics[edit source | editbeta]For a more comprehensive list, see List of open-source software for mathematics.

Reference management software[edit source | editbeta]

See Comparison of reference management software.

Science[edit source | editbeta]Main category: Free science software

Bioinformatics[edit source | editbeta]

See List of open source bioinformatics software.

Cheminformatics[edit source | editbeta]

Chemistry Development Kit

JOELib

OpenBabel

Geographic Information Systems[edit source | editbeta]Main category: Free GIS software

Grid Computing[edit source | editbeta]

P-GRADE Portal  — Grid portal software enabling the creation, execution and monitoring of workflows through high-level Web

interfaces

Microscope image processing[edit source | editbeta]

CellProfiler

Endrov

FIJI (software)

ImageJ

Molecular dynamics[edit source | editbeta]

Ascalaph Designer

GROMACS

LAMMPS

MDynaMix

NAMD

Molecule viewer[edit source | editbeta]

Avogadro

BALLView

Jmol

Molekel

MeshLab , able to import PDB dataset and build up surfaces from them

PyMOL

QuteMol

RasMol

Nanotechnology[edit source | editbeta]

Ninithi  — visualize and analyze the carbon allotropes such as Carbon nanotube, Fullerene, Graphene nanoribbons

Plotting[edit source | editbeta]Main category: Free plotting software

Statistics[edit source | editbeta]Main category: Free statistical software

Surveys[edit source | editbeta]

LimeSurvey  — Online survey system

Assistive technology[edit source | editbeta]

Speech (synthesis and recognition)[edit source | editbeta]

CMU Sphinx  — Speech recognition software from Carnegie Mellon University

Emacspeak  — Audio desktop

ESpeak  — compact software speech synthesizer for English and other languages

Festival Speech Synthesis System

Modular Audio Recognition Framework  — voice, audio, speech NLP processing

NonVisual Desktop Access  — (NVDA) Screen reader for Windows

Text2Speech  — Lightweight and easy to use Text To Speech (TTS) Software

Other assistive technology[edit source | editbeta]

Dasher  — Unique text input software

Gnopernicus  — AT suite for GNOME 2

Virtual Magnifying Glass  — a multiplatform, screen magnification tool.

Data storage and management[edit source | editbeta]

Backup software[edit source | editbeta]Main category: Free backup software

Database management systems (including administration)[edit source | editbeta]Main category: Free database management systems

Data mining[edit source | editbeta]

Environment for DeveLoping KDD-Applications Supported by Index-Structures (ELKI)  — data mining software framework written in

Java with a focus on clustering and outlier detection methods.

SCaViS  — Java-based data analysis framework

Konstanz Information Miner (KNIME)

Orange (software)  — data visualization and data mining for novice and experts, through visual programming or Python scripting.

Extensions for bioinformatics and text mining.

RapidMiner  — data mining software written in Java, fully integrating Weka, featuring 350+ operators for preprocessing, machine

learning, visualization, etc.

Scriptella ETL  — ETL (Extract-Transform-Load) and script execution tool. Supports integration with J2EE and Spring. Provides

connectors to CSV, LDAP, XML, JDBC/ODBC and other data sources.

Weka  — data mining software written in Java featuring machine learning operators for classification, regression, and clustering.

JasperSoft  — data mining with programmable abstraction layer.

Data Visualization Components[edit source | editbeta]

ParaView  plotting and visualization functions developed by Sandia National Laboratory, capable of massively parallel flow visualization

utilizing multiple computer processors

VTK  is a toolkit for 3D computer graphics, image processing and visualization.

Disk partitioning software[edit source | editbeta]Main category: Free partitioning software

Enterprise search engines[edit source | editbeta]

ApexKB , formerly known as Jumper

Lucene

Nutch

Solr

Xapian

ETLs (Extract Transform Load)[edit source | editbeta]

CloverETL (Community Edition)

Konstanz Information Miner (KNIME)

Pentaho

SpagoBI

Talend

File archivers[edit source | editbeta]Main category: Free data compression software

File Systems[edit source | editbeta]

OpenAFS  — a distributed file system supporting a very wide variety of operating systems

Tahoe-LAFS  — a distributed file system/Cloud storage system with integrated privacy and security features

CephFS  — a distributed file system included in the Ceph storage platform.

Networking and Internet[edit source | editbeta]

Advertising[edit source | editbeta]

OpenX

Communication-related[edit source | editbeta]

Asterisk  — Telephony and VoIP server

Ekiga  — Video conferencing application for GNOME and Microsoft Windows

FreePBX  — Front-end and advanced PBX configuration for Asterisk

FreeSWITCH  — Telephony platform

ICTDialer  — Unified autodialer application supporting sms, voice , fax broadcasting

ICTFax  — Fax over IP application featured with email to fax and fax to email

Jitsi  — Java VoIP and Instant Messaging client

OpenSER — SIP proxy server, call router, and user agent registration server.

QuteCom  — Free Voice, Video and IM client application

sipX  — SIP Communications Server

Slrn  — a newsreader

Twinkle  — VOIP softphone

E-mail[edit source | editbeta]Main category: Free email software

File transfer[edit source | editbeta]Main category: Free file transfer software

Instant messaging[edit source | editbeta]Main category: Free instant messaging clients

IRC Clients[edit source | editbeta]Main category: Free Internet Relay Chat clients

Middleware[edit source | editbeta]

Apache Axis2  — Web service framework (implementations are available in both Java & C)

Apache Geronimo

Bonita Open Solution (software) — a J2EE web application and java BPMN2 compliant engine

GlassFish Application Server

Jakarta Tomcat  — a servlet container and standalone webserver

JBoss Application Server  an application server

ObjectWeb JOnAS  — Java Open Application Server, a J2EE application server

SmartVariables  — a generic network-shared object application server

TAO (software)  — C++ implementation of the OMG's CORBA standard

RSS/Atom readers/aggregators[edit source | editbeta]

Akregator  — Platforms running KDE

Liferea  — Platforms running GNOME

RSS Bandit  — Windows - .NET

RSSOwl  — Windows, Mac OS X, Solaris, Linux - Java SWT Eclipse

Sage (Mozilla Firefox extension)

Peer-to-peer file sharing[edit source | editbeta]Main category: Free file sharing software

See also category: Free BitTorrent clients

Portal Server[edit source | editbeta]

Drupal

Liferay

Oxwall  — Community site software

Sun Java System Portal Server

uPortal

Remote access and management[edit source | editbeta]

FreeNX

OpenVPN

rdesktop

Synergy

VNC  (RealVNC, TightVNC, UltraVNC)

FreeRDP

Routing software[edit source | editbeta]Main category: Free routing software

Web browsers[edit source | editbeta]Main category: Free web browsers

Webcam[edit source | editbeta]

Cheese

Webgrabber[edit source | editbeta]

cURL

HTTrack

Wget

Web-related[edit source | editbeta]

Apache Cocoon  — a web application framework

Apache  — the most popular web server

AWStats  — a log file parser and analyzer

BookmarkSync  — a tool for browsers

Cherokee  — Speedy, feature rich HTTP Server

CougarXML  — a Javascript framework for parsing and manipulating XML code, based on W3C DOM Level-3 specifications.

curl-loader  — a powerful HTTP/HTTPS/FTP/FTPS loading and testing open-source tool

Hiawatha  — Secure, high performance and easy-to-configure HTTP Server

HTTP File Server  — a user friendly file server software with a drag and drop interface

ICDL Crawling  — a distributed web crawler based on Website Parse Template

lighttpd  — Resource sparing but also fast and full featured HTTP Server

nginx  — lightweight, high performance web server/reverse proxy and e-mail (IMAP/POP3) proxy

NetKernel  — an internet application server

Piwik  — a web analytics system

Qcodo  — a PHP5 framework

Railo  — CFML Application Server

Squid (software)  — web proxy cache

XAMPP  — a package of web applications including Apache and MySQL

Zope  — a web application server

Other networking programs[edit source | editbeta]

JXplorer  — a LDAP client

OpenLDAP  — a LDAP server

openVXI  — a VoiceXML interpreter

YaCy  — P2P-based search engine

Educational[edit source | editbeta]

Educational suites[edit source | editbeta]

ATutor  — a web-based Learning Content Management System (LCMS)

Chamilo  — a web-based e-learning and content management system

DoceboLMS

eFront  — an icon-based learning management system

GCompris

Gnaural  — Brainwave entrainment software

IUP Portfolio

ILIAS  — a web-based learning management system (LMS)

Moodle

Omeka

openSIS  — a web-based Student Information and School Management System system

Sakai Project  — a web-based learning management system

SWAD  - a web-based learning management system

Tux Paint  — a paint application for 3–12 year olds

Geography[edit source | editbeta]

KGeography

Learning support[edit source | editbeta]Main category: Free learning support software

Language[edit source | editbeta]

Kiten

KVerbos

Typing[edit source | editbeta]

KTouch

Tux Typing

Other educational programs[edit source | editbeta]

KEduca

File managers[edit source | editbeta]

Main category: Free file managers

Games[edit source | editbeta]

Main article: List of open source games

Application layer[edit source | editbeta]

WINE

Genealogy[edit source | editbeta]

Main category: Free genealogy software

Graphical user interface[edit source | editbeta]

Desktop environments[edit source | editbeta]Main category: Free desktop environments

Window managers[edit source | editbeta]Main category: Free X window managers

Windowing system[edit source | editbeta]Main category: Free windowing systems

Groupware[edit source | editbeta]

Main category: Free groupware

Content management systems[edit source | editbeta]Main category: Free content management systems

Wiki software[edit source | editbeta]Main category: Free wiki software

Healthcare software[edit source | editbeta]

Main article: List of open source healthcare software

Main article: List of Open Source Bioinformatics software

Media[edit source | editbeta]

2D animation[edit source | editbeta]

KToon

Pencil

Synfig

Pivot Stickfigure Animator

3D animation[edit source | editbeta]

Art of Illusion

Blender

K-3D

OpenFX

Seamless3d

Audio editors / audio management[edit source | editbeta]Main article: Free audio software

CD-writing software[edit source | editbeta]Main category: Free optical disc authoring software

Flash animation[edit source | editbeta]

Pencil Animation  (for animations)

SWFTools  (for scripting)

Graphics[edit source | editbeta]Main category: Free graphics software

Image galleries[edit source | editbeta]Main category: Free image galleries

Image viewers[edit source | editbeta]

Eye of GNOME

F-spot

Geeqie

Gthumb

Gwenview

Kphotoalbum

Opticks

Viewnior

Multimedia codecs / containers / splitters[edit source | editbeta]Main category: Free multimedia codecs, containers, and splitters

Television[edit source | editbeta]Main category: Free television software

See also: Comparison of PVR software packages

Video converters[edit source | editbeta]Main category: Free video conversion software

Dr. DivX

FFmpeg

MEncoder

OggConvert

Transcode

Video editing[edit source | editbeta]See also: List of video editing software#Free_and_open-source

Avidemux

AviSynth

Blender

Cinelerra

DScaler

DVD Flick

Kaltura

Kino

Kdenlive

LiVES

OpenShot Video Editor

PiTiVi

VirtualDub

VirtualDubMod

VLMC  — VideoLAN Movie Creator is a non-linear editing software for video creation based on libVLC and running on Windows, Linux

and Mac OS X!

Video encoders[edit source | editbeta]Main article: Comparison of video encoders

Avidemux

HandBrake

Video players[edit source | editbeta]

Main article: Comparison of video player software

Other media packages[edit source | editbeta]

Celtx  — Media Pre-production Software

Gnome Subtitles

Operating systems[edit source | editbeta]

Be advised that available distributions of these systems can contain, or offer to build and install, added software that is neither free software

nor open source.

Main category: Free software operating systems

Emulation and Virtualisation[edit source | editbeta]Main category: Free emulation software

Main category: Free virtualization software

Virtual Box

Password management[edit source | editbeta]

KeePass

Password Safe

Personal information managers[edit source | editbeta]

Chandler  — developed by the OSAF.

KAddressBook

Kontact

KOrganizer

Mozilla Calendar  — A Mozilla-based, multiplatform calendar program.

Novell Evolution

OpenSync (software)

Project.net  — Commercial Project Management

TeamLab  — Platform for project management and collaboration

Programming language support[edit source | editbeta]

Main article: List of open-source programming languages

Bug trackers[edit source | editbeta]

Bugzilla

Mantis

Mindquarry

Redmine

Trac

Flyspray

Code generators[edit source | editbeta]

Bison

CodeSynthesis XSD  — XML Data Binding compiler for C++

CodeSynthesis XSD/e  — Validating XML parser/serializer and C++ XML Data Binding generator for mobile and embedded systems

Flex lexical analyser

Kodos

Open Scene Graph  — 3D graphics application programming interface

OpenSCDP  — Open Smart Card Development Platform

phpCodeGenie

SableCC  — parser generator for Java and .Net

SWIG  — Simplified Wrapper and Interface Generator for several languages

^txt2regex$

xmlbeansxx  — XML Data Binding code generator for C++

YAKINDU Statechart Tools  statechart code generator for C++ and Java

Configuration software[edit source | editbeta]

Autoconf

Automake

CMake

Debuggers (for testing and trouble-shooting)[edit source | editbeta]

GNU Debugger  — "works for many programming languages [...]"

JSystem  — Test Automation Framework

Memtest86  — Stress-tests RAM on x86 machines

Xnee  — Record and replay tests

Integrated development environments[edit source | editbeta]Main category: Free integrated development environments

Version control systems[edit source | editbeta]Main category: Free revision control software

Screensavers[edit source | editbeta]

Boinc

Electric Sheep

XScreenSaver

Security[edit source | editbeta]

Anti-virus[edit source | editbeta]

ClamAV

ClamWin

Gateway Anti-Virus

Data loss prevention[edit source | editbeta]

MyDLP

Data recovery[edit source | editbeta]

dvdisaster

Foremost

PhotoRec

TestDisk

See also: List of data recovery software

Forensics[edit source | editbeta]

The Coroner's Toolkit

The Sleuth Kit

Disk erasing[edit source | editbeta]

DBAN

srm

Encryption[edit source | editbeta]

GnuPG

GnuTLS

KGPG

OpenSSL

Seahorse

Disk encryption[edit source | editbeta]

CrossCrypt

FreeOTFE  and FreeOTFE Explorer

Firewall[edit source | editbeta]

Coyote Linux

Firestarter

IPCop

IPFilter

IPFire

ipfw

Iptables

M0n0wall

PeerGuardian

PF

pfSense

Rope

Shorewall

SmoothWall

Untangle

Vyatta

Zentyal

Network and security monitoring[edit source | editbeta]Main category: Free network management software

Secure Shell (ssh)[edit source | editbeta]

Cyberduck  — Mac OS X and Windows client (since version 4.0)

Lsh  — server and client (supporting SRP and Kerberos authentication)

OpenSSH  — client/server

PuTTY  — client only

Other security programs[edit source | editbeta]Main category: Free security software

Theology[edit source | editbeta]

Bible study tools[edit source | editbeta]

BibleDesktop  — For Cross-platform

BibleTime  — For Linux using KDE

Go Bible  — For Java Mobile Phones

jSword  — For Java

MacSword  — For Mac OS X

Marcion  — For Linux and Windows, using Qt UI Framework and embedded MySql server

openlp.org  — Worship presentation software for churches to display songs, bibles, movies etc.

SwordBible  — For Windows

The SWORD Project for Windows  — For Windows

Xiphos  The_SWORD_Project — For Linux using GNOME

Typesetting[edit source | editbeta]

Main category: Free typesetting software

See also[edit source | editbeta]

Free software portal

List of GNOME applications

List of GNU packages

List of KDE applications

List of liberated software

List of Unix programs

General directories[edit source | editbeta]

SourceForge.net

Freshmeat

Ohloh

CodePlex

References[edit source | editbeta]

1. Jump up^ Richard Stallman (July 13, 2011). "Why Open Source misses the point of Free Software". Retrieved August 24, 2011.

External links[edit source | editbeta]

General Directories[edit source | editbeta]

Free Software Directory  — The Free Software Directory of the Free Software Foundation.

Open Source Software Directory  — Provides a list of open source software organized by categories.

Open Source Living  — Open Source Living is a community-driven dynamic archive of Open Source software.

Ohloh  — Ohloh is an open source directory that anyone can edit.

Open source for Windows[edit source | editbeta]

List Of Open-source Programs (LOOP list) for Windows

TheOpenDisc.com  pre-assembled disc of OSS for Windows (successor to TheOpenCD.org)

The OSSwin project : Open Source for Windows!

Other directories[edit source | editbeta]

The OpenScience Project  — Open Source software for science and mathematics

FreeOpenSourceSoftware.org  — Wiki on FOSS including sources, directories, system & application software indexes.