Open source alternatives to proprietary enterprise software

Proprietary Software Name Open Source alternative(s) Saas alternative(s)
Adobe Acrobat PDFCreator, GNU Ghostscript, Xpdf
ATG Commerce Magento, PrestaShop, Drupal Commerce Demandware, Venda
BizTalk Server
BMC IT Service Support for the Midsized Business (formerly Magic) RT – Request Tracker, OTRS – Open source Ticket Request System ZenDesk
BMC Remedy for IT Service Providers OTRS – Open source Ticket Request System, RT – Request Tracker ZenDesk
BMC Remedy IT Service Management OTRS – Open source Ticket Request System, RT – Request Tracker ZenDesk
Documentum Alfresco, Nuxeo 5 SpringCM
Exchange Server Bluemind, Sendmail Zimbra
Forefront Threat Management Gateway 2010
HEAT Product Suite OTRS – Open source Ticket Request System, RT – Request Tracker
Hybris PrestaShop, Magento, Pimcore, Akeneo PIM, Drupal Commerce Venda, Demandware
IBM WebSphere Portal JBoss Portal Google Sites
Intershop 7 Drupal Commerce, Magento, PrestaShop Demandware, Venda
JIRA Mantis, Bugzilla, Redmine, OTRS – Open source Ticket Request System ZenDesk, JIRA
Jitterbit Talend Open Studio
Mac Expression
Mac Office
Microsoft Dynamics CRM Sugar Open Source, vTiger CRM Salesforce CRM, Zoho CRM
Microsoft My Phone
Microsoft Tag
Micrososft SQL Server Integration Services -SSIS Talend Open Studio, Kettle, Jitterbit
MindTouch Core MediaWiki, xWiki
NewsGator Social Sites Drupal Commons Yammer
Office for Mac
PDFCreator Xpdf, GNU Ghostscript
SAP CRM vTiger CRM, Sugar Open Source Salesforce CRM, Zoho CRM
SDL Tridion Drupal, eZ Publish, Typo3, Modx
Sharepoint Drupal, GateIn, Alfresco
Splunk Logstash, Fluentd, ElasticSearch
SQL Server
Track-It Mantis, Bugzilla
Vignette Application Portal
Windows Server