Open Source Tools:
Open Source: Backup
1. Amanda Replaces Symantec Data Recovery Software, NovaBackup, Barracuda Backup Service
Suitable for both small and large organizations, Amanda allows IT administrators to backup up multiple multi-platform systems to tape, disk, or other media. Development of the software is now sponsored byZmanda, which provides cloud-based backup services that rely on the same software. Operating System: Windows, Linux, OS X.
2. Areca Backup Replaces Norton Ghost, McAfee Online Backup, NovaBackup
More suitable for home users, Areca Backup offers advanced features like compression, encryption, file version tracking and backup simulation, along with a fairly easy-to-use interface. It offers full (backs up the entire drive), incremental (backs up files changed since last backup), differential (backs up files changed since last full backup), and delta (backs up the portions of the files changed since the last backup) backup options. Operating System: Windows, Linux.
3. Bacula Replaces Symantec Data Recovery Software, NovaBackup, Barracuda Backup Service
This enterprise-ready network backup solution claims to be the most popular open source backup option for enterprise users. Commercial support is available through Bacula Systems. Operating System: Windows, Linux, OS X.
4. Clonezilla Replaces Symantec Data Recovery Software, Norton Ghost
Specifically designed as a replacement for Norton Ghost and other Symantec backup products, Clonezilla is an open-source backup/imaging/cloning app that allows bare metal recovery and has unicasting and multicasting capabilities. It comes in two flavors: Clonezilla Live for backing up a single machine, and Clonezilla SE which can clone more than 40 systems at once. Operating System: Linux.
5. Create Synchronicity Replaces Norton Ghost, McAfee Online Backup, NovaBackup
Extremely lightweight and easy-to-use, Create Synchronicity is great for home or small business users. It has good scheduling capabilities and is available in a number of different languages. Operating System: Windows.
6. FOG Replaces Symantec Data Recovery Software, NovaBackup, Barracuda Backup Service
FOG creates a Linux-based server that can backup both Windows and Linux systems. It's a good choice for small organizations, because it's very easy to use but also very powerful with a number of advanced features. Operating System: Linux, Windows.
7. Partimage Relaces Norton Ghost
This network tool can back up entire disks or just partitions. Note that it runs on Linux, but can also back up Windows machines connected to the network. Operating System: Linux.
8. Redo Replaces Norton Ghost, McAfee Online Backup, NovaBackup
Redo Backup and Recovery boasts that it can do a bare-metal restore in as little as 10 minutes. Unlike many other backup and recovery tools for home users, it can boot from a CD even if you can't run your operating system due to a virus or system crash. Operating System: Windows, Linux.
Open Source: Compression
9. 7-zip Replaces WinZip
This utility offers a 2-10 percent better compression ratio on zip files than WinZip. And it also lets you create self-extracting 7z files with 30-70 percent better compression than zip files. Operating System: Windows, Linux, OS X.
10. KGB Archiver Replaces WinZip
The KGB Archiver offers both good compression and good encryption capabilities, with all files protected by AES-256 encryption automatically. It's also pretty fast, but you will need a fairly robust system in order to use it. Operating System: Windows.
11. PeaZip Replaces WinZip PeaZip writes to 10 different compression file formats and extracts from 129 file types, making it one of the most versatile archiving tools available. It also offers encryption capabilities, and it's available in a portable version that you can use from a thumb drive. Operating System: Windows, Linux, OS X.
Open Source: Databases
12.Kexi Replaces Microsoft Access, FileMaker
It's Web site proclaims Kexi to be “a long-awaited competitor for programs like MS Access or Filemaker.” It's part of the KDE suite, but can also be used on its own. Operating System: Windows, Linux, OS X.
13. LucidDB Replaces Microsoft SQL Server
Unlike the other databases on our list, LucidDB was specifically designed to serve the analytics needs of data warehouse and business intelligence projects. It was created with "flexible, high-performance data integration and sophisticated query processing in mind." Operating System: Windows, Linux.
14. MySQL Replace: Microsoft SQL Server
MySQL claims to be the "world's most popular open source database." It's very popular with Web developers because of its excellent performance and scalability capabilities. In addition to the free community edition, Oracle offers a number of paid commercial editions, as well as services and training. Operating System: Windows, Linux, OS X
15. PostgreSQL Replaces Microsoft SQL Server
This database touts its reliability saying, "Unlike many proprietary databases, it is extremely common for companies to report that PostgreSQL has never, ever crashed for them in several years of high activity operation. Not even once." It offers a wide array of advanced enterprise-class features like Multi-Version Concurrency Control (MVCC), point-in-time recovery, tablespaces, asynchronous replication, nested transactions (savepoints), online/hot backups and much more. Operating System: Windows, Linux, OS X.
Open Source: Data Destruction
16. BleachBit Replaces Easy System Cleaner
Among its many functions, BleachBit can "shred" files previously stored on your system so that they can't be recovered. It also cleans up your cache, temporary files, logs, cookies, etc. to improve system performance. Operating System: Windows, Linux.
17. Darik's Boot And Nuke Replaces Kill Disk, BCWipe Total WipeOut
If you need to get rid of all of the files stored on a system, DBAN does the job quickly and easily. It runs from a disk and automatically erases all drives it can detect so that they cannot be recovered. Operating System: OS Independent.
18. Eraser Replaces BCWipe Enterprise
If you need to eliminate personal or sensitive files completely, Eraser does the job by overwriting the old file with random data. It also comes with a scheduler so you can eliminate old archives on a set date. Operating System: Windows.
19. FileKiller Replaces BCWipe Enterprise
FileKiller works much like Eraser, but it gives the user the option of determining how many times the old data is overwritten. It's also very fast. Operating System: Windows.
20. Wipe Replaces BCWipe Enterprise
Wipe also performs the same data destruction as Eraser, only for Linux instead of Windows. Operating System: Linux.
Open Source: Data Warehouse (DW) Tools
21. Clover ETL Replaces Oracle Data Integration Suite, Informatica
Designed for those with "modest data transformation and ETL requirements," the community edition of CloverETL makes it easy to move data between different types of databases and spreadsheets. For those with more advanced needs, CloverETL also offers a variety of fee-based versions. Operating System: OS Independent.
22. DataCleaner Replaces DataFlux Data Management Studio, IBM InfoSphere Master Data Management, Oracle Master Data Management Suite
DataCleaner profiles, validates, and compares data in order to ensure its quality. It can work with nearly any kind of datastore, including Oracle, MySQL, XML files, Microsoft SQL, Excel spreadsheets, and more. Operating System: OS Independent.
23. KETL Replaces Oracle Data Integration Suite, Informatica
This "premier" extract, transform, load (ETL) tool offers excellent scalability, which allows it to compete against commercial tools. It integrates with most popular security and data management tools. Operating System: Linux, Unix.
24. MailArchiva Replaces ArcMail, Barracuda Message Archiver, GFI Mail Archiver
Highly scalable, MailArchiva offers long-term storage of e-mails in an easy-to-search format for compliance purposes. In addition to the free community version, it's also available in a paid enterprise edition, which includes additional features. Operating System: Windows, Linux.
25. Talend Open Studio Replaces Oracle Data Integration Suite, Informatica
Talend offers a variety of open-source tools for data integration, data quality, master data management and application integration. In addition to the free, open-source version of their software, they also offer paid SaaS versions and commercial support, services and training. Operating System: Windows, Linux, Unix.
Open Source: Document Management Systems (DMS)
26. Epiware Replaces Documentum, Microsoft SharePoint, OpenText
Epiware merges document management capabilities with some collaboration capabilities, including calendaring, project management and a wiki. Other features include search, check-in/check-out, and access and version history. Operating System: Windows, Linux.
27. LogicalDOC Replaces: Documentum, Microsoft SharePoint, OpenText
This app aims to help enterprises replace their paper files with digital versions that make it fast and easy to find the information you need. In addition to the community version, it's also available in paid enterprise and SaaS versions. Operating System: OS Independent.
28. OpenKM Replaces: Documentum, Microsoft SharePoint, OpenText
While not quite as polished as some of the other open-source document management systems, OpenKM also offers enterprise-ready capabilities. Key features include drag-and-drop functionality, a powerful search engine, and tag clouds. Operating System: OS Independent.
Open Source: Encryption
29. AxCrypt Replaces McAfee Anti-Theft, Symantec Endpoint Encryption, CryptoForge
The "leading open source file encryption software for Windows," AxCrypt lets you encrypt files from the Windows file manager with a simple right click, and decrypting just takes a double-click. You can also use it to send self-decrypting files via e-mail. Operating System: Windows.
30. Crypt Replaces McAfee Anti-Theft, Symantec Endpoint Encryption, CryptoForge
Designed for speed, Crypt is very lightweight—just 44 kb. Note that it runs from the command line (no GUI), so it might be a little intimidating to less experienced computer users. Operating System: Windows.
31. Gnu Privacy Guard Replaces McAfee Anti-Theft, Symantec Endpoint Encryption, CryptoForge
Based on the OpenPGP standard, GPG lets you sign and encrypt both data and e-mail. Like Crypt, this app runs from the command line, but it does have a number of front-ends available if you prefer a GUI. Operating System: Linux.
32. gpg4win Replaces McAfee Anti-Theft, Symantec Endpoint Encryption, CryptoForge
If you want to use GPG on a Windows machine, this is the app for you. Operating System: Windows.
33. Mac GNU Privacy Guard
Replaces McAfee Anti-Theft, Symantec Endpoint Encryption, CryptoForge Yet another version of GPG—this time for Mac users. Operating System: OS X.
34. MailCrypt Replaces McAfee Anti-Theft, Symantec Endpoint Encryption, CryptoForge
If you want to encrypt all of your e-mail, try MailCrypt. It lets you select from PGP or GnuPGP encryption (though it recommends GnuPGP). Note that this app is not as user-friendly as some of the other options Operating System: OS Independent.
35. NeoCrypt Replaces McAfee Anti-Theft, Symantec Endpoint Encryption, CryptoForge
A better option for beginners, NeoCrypt offers a simple user interface and right-click integration with Windows Explorer. It supports 10 different encryption algorithms and has bulk encryption options for quickly protecting a lot of stored files. Operating System: Windows.
36. TrueCrypt Replaces McAfee Anti-Theft, Symantec Endpoint Encryption, CryptoForge
Downloaded more than 17 million times, this app is one of the most sophisticated and easy-to-use open-source encryption tools available. It can encrypt an entire disk or a disk partition, or create virtual encrypted disk within a file and mount it as a real disk. Operating System: Windows.
Open Source: File Managers
37. Explorer++ Replaces Windows Explorer
This utility doesn't so much replace Windows Explorer as enhance it. It adds tabbed browsing, a preview window, keyboard shortcuts and other features to the familiar interface. Operating System: Windows.
38. muCommander Replaces Windows Explorer, xplorer_
This Java-based file manager supports FTP, SFTP, SMB, NFS, HTTP, Amazon S3, Hadoop HDFS and Bonjour. Other key features include built-in compression and decompression tools and a universal bookmarks and credentials manager. Operating System: Windows, Linux, OS X.
39. PCManFM Replaces Windows Explorer, xplorer_
While it's the default file manager for LXDE, you can also use PCManFM with other Linux desktop environments. It's currently undergoing a major re-write, but you can still download the older code. Operating System: Linux.
40. QTTabBar Replaces Windows Explorer
Like Explorer++, QTTabBar adds tabs to the Windows Explorer interface. It's technically still in alpha, but has a large and enthusiastic user base. Operating System: Windows.
41. SurF Replaces Windows Explorer, xplorer_
This file manager offers a unique, tree-based view. Other key features include real-time highlighting of new and changed files, directory auto-complete search and support for advanced NTFS capabilities. Operating System: Windows.
42. TuxCommander Replaces Windows Explorer, xplorer_
For Linux only, TuxCommander offers a familiar two-panel tabbed graphical interface. It's not flashy, but easy-to-use. Operating System: Linux.
Open Source: File Transfer
43. FileZilla Replaces CuteFTP, FTP Commander
With FileZilla you can set up an Windows-based FTP server or download FTP files from another site using any operating system. It supports FTP, FTP over SSL/TLS (FTPS) and SSH File Transfer Protocol (SFTP), and it's ready for IPv6. Operating System: Windows, Linux, OS X.
44. WinSCP Replaces: CuteFTP/GlobalSCAPE, FTP Commander
This very popular FTP client has been downloaded more than 40 million times. It supports SFTP, FTP, SSH, and SCP transfers. Operating System: Windows.
Open Source: NAS Software
45. FreeNAS Replaces Isilon products, IPDATA appliances, Netgear ReadyNAS
This BSD-based app allows you to create your own NAS server. It supports CIFS (samba), FTP, NFS, TFTP, AFP, RSYNC, Unison, iSCSI (initiator and target) and UPnP. Operating System: FreeBSD.
46. Gluster Replaces Isilon products, IPDATA appliances, Netgear ReadyNAS
Gluster offers open-source scale-out storage for on-premise NAS, virtual machine images and cloud storage. In addition to the free community edition, the company offers several subscription-based support options. Operating System: Linux.
47. Openfiler Replaces , IPDATA appliances, Netgear ReadyNAS
With Openfiler, you can convert almost any standard PC into a unified NAS/SAN appliance. You will need to be fairly knowledgeable in order to use it, but support and other add-ons are available for a fee. Operating System: Linux.
48. Turnkey Linux Replaces , IPDATA appliances, Netgear ReadyNAS
Turnkey offers a variety of pre-configured appliances, including a NAS appliance, which lands it on our list. In addition, all Turnkey appliances come with TurnKey Linux Backup and Migration pre-installed. Operating System: Linux.
Open Source: Utilities
49. Bulk File Manager Replaces NoClone 2010, FalconStor Data Deduplication
This helpful utility finds duplicate files and gives users the options of deleting or moving them. It also offers bulk file moving, re-naming and secure deletion capabilities. Operating System: Windows.
50. Copy Handler Replaces standard Windows copy and move capabilities
If you're re-organizing or cleaning up your hard drive, Copy Handler can help. It's faster than the standard Windows copy and move features, and it gives you more options, like task queuing, filtering files according to specific criteria, pausing and resuming copying files and changing the copying parameters on the fly. Operating System: Windows.