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Ultimate List of Open Source Software

Hundreds of open source software applications, from accounting to graphics editors to office software, games to multimedia to security – the mega open source software list.
Posted December 21, 2010

Cynthia Harvey

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This list of open source software applications covers the gamut – and then some. After all, 'tis the season to overindulge, and in honor of the occasion we've put together a list with more open source software than anyone can digest in one sitting. Gulp.

We've updated last year's Monster List of Open Source Downloads – getting rid of the projects that are no longer active and adding the projects that were featured on Datamation for the first time this year. The result is a sprawling list of 715 noteworthy tools from the open source community.

Of course, with any list this long, some of the apps are more mature than others. And it's even possible that we may have overlooked some great open source apps. Feel free to add your suggestions for next year's open source monster list in the comments section below.

Ultimate list of open source software:

Accounting to Audio Tools // Backup to Cloud Infrastructure // Cloud Desktop to CRM // Databases to Developer Tools // Dictionary to Encryption // Emulators to Foreign Language // Forensics to Graphics Editors // Healthcare to Modeling // Multimedia to Network Simulation // Office to POS // Portable Apps to Smoking Cessation // Speech to Typing // Utilities to Web Editors

Open Source Software: Accounting

1. Edoceo Imperium

This Web-based app combines basic CRM features with accounting capabilities. While it can be accessed from any browser, you'll need a Linux server running Apache, PHP, Zend, and PostgreSQL to host the software. Operating System: Windows, OS Independent.

2. FriFinans

Aimed at small to medium-sized organizations, FriFinaans offers a cross-platform, multi-user client-server based accounting system. It tracks accounts, debtors, creditors, products, and more. Operating System: OS Independent

3. FrontAccounting

If your business is large enough to have multiple users who need access to your accounting system, FrontAccounting offers a Web-based app that also adds some ERP features. The interface is basic but easy to use, and the site includes an extensive wiki with lots of support. Operating System: OS Independent.

4. GnuCash

If you run a very small or home-based business and you've been using Quicken to track your accounts, GnuCash can give you some of the additional business features you need, like tracking customers, vendors, invoices, accounts payable and accounts receivable. And it's compatible with Quicken and OFX formats, so you can transfer you existing data. Operating System: Windows, Linux, OS X.

5. Lazy8Ledger

If you've been doing your accounting old-school, that is, keeping track of your books with a paper and pencil or a simple spreadsheet, Lazy8Ledger gives you a step up. The interface looks just like a paper-based system, so you won't have to spend any time learning something new. It's also available in a Web-based version that can be used by multiple users. Operating System: Windows, Linux, OS X.

6. osFinancials

Designed to be simple, osFinancials can be used by anyone. The basic software is free, but plug-ins and support are available for a fee. Note: because it is developed by a team in the Netherlands, a lot of the osFinancials Web site and documentation is in Dutch, but English is also available. Operating System: Windows

7. Phreebooks

This Web-based accounting and ERP package for small businesses compares favorably with Sage and QuickBooks. It's available on an SaaS basis from Phreebooks hosting partner UniMatrix. Operating System: OS Independent.

8. TurboCASH

This bookkeeping app boasts more than 80,000 users and invites users to compare its extensive feature list to QuickBooks and Sage. Although its owners are based in the UK, it's available in a US edition and has been localized for many other countries and languages as well. Operating System: Windows.

Open Source Software: Appliances

9. Turnkey Linux

First launched in 2008, Turnkey provides pre-configured virtual appliances based on open source applications. One of their most recent offering is a backup and migration appliance, and they also offer LAMP stack, Drupal, Joomla, WordPress, File server, Ruby on Rails, and dozens of other appliances. Operating System: Linux.

Open Source Software: Address Book

10. Rubrica

Written using GNOME and GTK+, Rubrica stores contact information as XML data. It can import/export from a variety of formats, including GnomeCard, KAddressbook, Evolution, and csv file format. Operating System: Linux/Unix.

Open Source Software: Anti-Spam

11. ASSP

Stop spam at your SMTP server with ASSP, the "Anti-Spam SMTP Proxy." It uses whitelists and Bayesian filtering and supports a wide variety of servers, including Exchange, Lotus Notes, and many others. Note that this is software, not an appliance like Barracuda, and it only stops spam, not malware. Operating System: OS Independent.

12. SpamAssassin

The highly acclaimed "#1 open-source spam filter," SpamAssassin, uses a number of different features to identify spam, including header tests, body phrase tests, Bayesian filtering, blacklists and whitelists, and others. It can be used on its own, but it's also been incorporated into a number of other commercial and open-source applications. Operating System: OS Independent.

13. Spamato

Available as an Outlook add-on, as a Thunderbird extension, or as a stand-alone proxy, Spamato uses multiple filters to separate junk mail from the stuff you actually want to receive. Unlike some anti-spam tools, it also lets you see why a message gets classified as spam and adjust your settings as necessary. Operating System: Windows, Linux, OS X.

Open Source Software: Anti-Spyware

14. Nixory

Nixory works along with your existing firewall and anti-virus software to eliminate data-mining and spyware threats. While Spy Sweeper works with all browsers, Nixory is specifically designed for Firefox users. Operating System: OS Independent.

15. xpy

For Windows XP only (hence the name) this 60KB program improves the privacy, security, and performance of the OS. It disables the Windows "calling home" features, tweaks the settings on Internet Explorer and Windows Media Player, removes Windows Messenger, and more. Operating System: Windows.

Open Source Software: Anti-Virus/Anti-Malware

16. ClamAV

One of the best-known open source security software, ClamAv's anti-virus capabilities have earned it a stellar reputation. The version available at this site works on Linux/UNIX and is most suitable for larger organizations. Operating System: Linux.

17. ClamAV for Windows

Recently released, the official ClamAV for Windows is a partnership between SourceFire (the owner of ClamAV) and cloud-based security provider Immunet. Because it runs in the cloud, this anti-virus software doesn't drain system resources, and it's able to use community-based protection to improve security. And while both Panda Cloud Antivirus and ClamAV for Windows are free, only ClamAV has source code available. Operating System: Windows.

18. ClamTK

Like ClamAV for Windows, ClamTK provides a front end for the ClamAV engine, this time for the Linux OS. It allows you to schedule system scans, but it does not provide real-time scanning for incoming files. Operating System: Linux.

19. ClamWin

Suitable for home users, this front-end for the ClamAV antivirus offers good protection from viruses and integrates into Windows Explorer and Microsoft Outlook. Unlike the commercial products, however, ClamWin doesn't automatically scan files in real time as you download them—you'll have to schedule a scan of your system or manually click on a file to scan it individually. Operating System: Windows.

20. Moon Secure

This app also uses the Clam AV engine (though developers claim to be working on one of their own), but offers a different interface and some different features. Operating System: Windows.

21. P3Scan

This e-mail proxy server scans both incoming and outgoing messages for viruses, worms, trojans, spam, and other malware. Like most open-source anti-virus tools, it's based in part on the ClamAV engine. Operating System: Linux.

22. Rootkit Hunter

This no-frills tool scans for rootkits and other malware on Linux system. While it does not provide live or scheduled scanning, the Web site explains how to set up your system to scan daily. Operating System: Linux, Unix.

23. Viralator Still getting the occasional network virus even after you install anti-virus software? Viralator supplements the existing anti-virus software on your proxy server to block malware that might otherwise slip in when users access free webmail accounts. Operating System: Linux, Unix.

Open Source Software: Application Firewall

24. AppArmor

Part of openSUSE and SUSE Linux Enterprise, Novell's application firewall uses policy-based profiles to control who can access various applications. This is not an appliance like the Barricuda product, but it does perform many of the same functions. Operating System: Linux.

25. ModSecurity

ModSecurity provides a wide range of protection for Web applications. You can also purchase an appliance from Breach Security. Operating System: OS Independent.

26. SELinux

Developed by the NSA, Security Enhanced Linux adds mandatory access control features to the Linux OS. It enforces complete separation of information to make it more difficult to bypass application security mechanisms. Operating System: Linux, Unix.

Open Source Software: Astronomy

27. Celestia

If you're tired of staring at your cubicle walls, why not take a break and fly around the galaxy for a while. Celestia lets you see the skies at any time from any point in the known universe, using real images wherever possible. Operating System: Windows, Linux, OS X.

28. KStars

Developed by the KDE Education Project, KStars is a planetarium program that's very similar to Stellarium (see below). Unique features include an altitude vs. time tool, what's up tonight tool, and an AAVSO Lightcurve Generator. Operating System: Linux.

29. Space Trajectory Analysis

This app lets researchers analyze, simulate, and visualize the paths of objects that have been launched into space. It's currently being used by the European Space Agency and a number of international universities. Operating System: Windows, Linux, OS X.

30. Stellarium

If you're thinking of taking up astronomy as a hobby but don't want to buy a telescope or stay up late, try Stellarium. It offers a view of the night skies from any point on earth, and it's so accurate, it's even used by many planetariums. Operating System: Windows, Linux, OS X.

Open Source Software: Audio Tools

31. Amarok

Amarok plays music, creates playlists, displays lyrics and cover art, and integrates with a number of Web services for listening to or purchasing tracks. The interface has improved with time, and the latest version offers some great new features like the automatic playlist generator. Operating System: Windows, Linux, OS X.

32. Aqualung

Originally designed for Linux, this multi-platform tool plays audio CDs, internet radio streams, podcasts, and "soundfiles in just about any audio format." At the top of its long list of features is the ability to play multiple tracks without gaps in between—a real plus for concert recordings or other albums designed to flow seamlessly from one song to the next.. Operating System: Windows, Linux, OS X.

33. aTunes

Java-based aTunes plays and manages your music, much like its obvious namesake. The interface isn't as pretty as some of the other music players, but its easy to use and provides contextual info for the artists, like cover art, YouTube videos, etc. Operating System: OS Independent.

34. Audacity

Audacity does not offer the quality of features that professionals would need, but it can handle just about any audio recording and editing task most home users and garage bands need. Features include pitch change, tempo change, noise removal, and a number of special effects. Operating System: Windows, Linux, OS X.

35. AC3Filter

This audio decoder and processor filter allows media players to play AC3 and DTS audio tracks from movies. It also allows you to mix audio tracks and adjust sound quality. Operating System: Windows.

36. BonkEnc

This tool rips CDs and converts audio files to MP3, MP4/M4A, WMA, Ogg Vorbis, FLAC, AAC, WAV and Bonk formats. It's also optimized for multi-core systems for fast performance. Operating System: Windows

37. CDex

Tremendously popular, CDex has been downloaded more than 38 million times. In addition to creating WAV files, it also supports Lame MP3 encoder, APE lossles audio format, Ogg Vorbis encoder, Windows WMA8 encoder, and many others. Operating System: Windows

38. Cdrtools

If you're comfortable working from the command line, this set of tools will let you record audio, burn CDs/DVDs, and perform a variety of other tasks. It also now supports Blu-Ray. Operating System: Linux.

39. CoolPlayer This audio-only player boasts a small file size and "blazing fast" speed when you just want to play audio tracks. Other features include an 8-band equalizer, MP3 to WAV conversion, playlist editor and support for streaming content. Operating System: Windows.

40. DrumTrack

Want to add a drum track to your composition, but don't own drums? This app lets you take real rhythm samples and arrange them as you see fit. Operating System: Windows.

41. EasyTAG

EasyTAG allows users to view and edit the tag fields on MP3, MP2, MP4/AAC, FLAC, Ogg Vorbis, MusePack, Monkey's Audio, and WavPack files. It includes a tree-based browser and CDDB support for manual and automatic searches. Operating System: Windows, Linux.

42. Frinika

Like Audacity, Java-based Frinika offers music recording and editing features suitable for amateur musicians. It also lets you create music right from your PC, using your keyboard to add synthesizer and drum beat tracks. Operating System: OS Independent.

43. Hydrogen Replaces: DrumCore

For Linux and Mac users, Hydrogen offers similar functionality as DrumTrack. Its feature set is also more robust than DrumTrack's, making it suitable for professionals. Operating System: Linux, OS X.

44. Jajuk

Designed for people with large and/or scattered music collections, Jajuk aims to make organizing your music easier. It looks and feels similar to aTunes, and it's been called "the most powerful jukebox out there." Operating System: OS Independent

45. Jukes This twelve-year-old app was recently rewritten to be cross-platform and renamed (from "Put up your Jukes"). It's highly customizable with great management features. Operating System: Windows, Linux, OS X.

46. Juice

Juice makes it easy to capture and listen to podcasts, any time, anywhere. It includes a directory of thousands of online podcasts, so it’s also easy to find the one you want. Operating System: Windows, Linux, OS X.

47. KMid

Turn your PC into a karaoke player with this KDE app. It also plays Midi files and includes features like pitch control, a visual metronome and a piano player window. Operating System: Windows.

48. LAME

Although LAME stands for "Lame Ain’t No MP3 Encoder," the first line on its Web site states, "LAME is an MPEG Audio Layer III (MP3) encoder." It was intended as an educational tool for those interested in improving the speed and quality of MP3 files. Operating System: Windows, Linux, OS X.

49. Linux MultiMedia Studio

This app lets you create your own melody, drum track, bass line, and import samples, then mix them all together. Note that although it says "Linux" in the name, it is also available for Windows. Operating System: Windows, Linux

50. Mixere

While not as advanced as the professional tools above, Mixere lets you mix sound during a live performance with an easy-to-understand spreadsheet-like interface. Key features include dynamic looping, auto-triggering of audio, fully automated sliders, gradual muting, and crossfading. Operating System: Windows.

51. Mixxx

Much more robust than Mixere, Mixxx offers a real alternative to the commercial tools. Even if you're new to DJing, Mixx makes it easy to beatmatch songs, add effects, and scratch. Operating System: Windows, Linux, OS X.

52. MOC

Simply select a directory, and the MOC (Music On Console) audio player will play all files in that directory. Supported file formats include MP3, Ogg Vorbis, FLAC, Musepack, Speex, WAVE, AIFF, and AU. Operating System: Linux/Unix, OS X.

53. Moosic

While most of the other apps in this category have fairly nice GUIs, Moosic is sort of an iTunes for command-line junkies. If you want to organize and play your music by typing in shell commands, this is the option for you. Operating System: Linux/Unix.

54. MP3Gain

Tired of constantly adjusting the volume when playing MP3s? MP3Gain uses statistical analysis to gauge how loud songs sound in the human ear, and then modifies the volume appropriately without degrading the quality of playback. Operating System: OS Independent.

55. Mp3splt

Mp3splt is an audio utility that does just one thing—it lets you cut mp3 and ogg files into smaller files and rename them. It’s especially useful if you need to split an entire album into individual tracks. Operating System: Windows, Linux, OS X.

56. Pandora Radio Desktop App

You don't have to upgrade to Pandora One in order to get a desktop app to listen to the free Pandora service. This lightweight app minimizes to your system tray and removes banner ads. Operating System: Windows.

57. pulpTunes

Want to access your home iTunes library while you’re at work? Install pulpTunes and you can access your music from any Web-connected computer. Operating System: OS Independent.

58. Radio Downloader

If your favorite online radio station only offers streaming content, you can turn it into a podcast you can listen to any time with Radio Downloader. It comes with built-in support for BBC content and a helpful "favourites" tab. Operating System: Windows.

59. Songbird

One of the best open source iTunes alternatives, Songbird offers an attractive interface, both audio and video playback, track and concert ticket purchase, and much more. It's also now available on many Android phones. Operating System: Windows, Linux, OS X, Android.

60. StreamRipper

StreamRipper allows you to record and save Shoutcast streams and other Internet audio. Its key feature is the ability to find silences and mark them as possible points of track separation. Operating System: Windows, Linux/Unix.

61. Zinf Like CoolPlayer, Zinf is a barebones music player. It plays most types of audio files, allows creation of playlists and displays album art. Operating System: Windows, Linux.

Ultimate list of open source software:

Accounting to Audio Tools // Backup to Cloud Infrastructure // Cloud Desktop to CRM // Databases to Developer Tools // Dictionary to Encryption // Emulators to Foreign Language // Forensics to Graphics Editors // Healthcare to Modeling // Multimedia to Network Simulation // Office to POS // Portable Apps to Smoking Cessation // Speech to Typing // Utilities to Web Editors

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