Free / Libre / Open Source software
https://en.wikipedia.org/wiki/Free_and_open-source_software#FLOSS
Microsoft | WikiSuite |
Windows Server | Linux with Virtualmin |
Skype and Lync | Server-side: Openfire + Converse (XMPP) with Jitsi Meet (WebRTC) Desktop client: Pàdé, a Chrome extension with many features. See Pàdé Presentation phone system: FreeSWITCH & FusionPBX. |
Exchange | JMAP |
OneDrive | Tiki File Gallery, and Syncthing for automated file synchronization. |
Project | Tiki Trackers and other features in Tiki can be configured to be a project management tool for a typical organization (most people use a spreadsheet for project management anyway). New to Tiki19: https://doc.tiki.org/PluginGanttChart |
Visio | Tiki Diagram (MxGraph / draw.io) |
SharePoint | Forms: Tiki Trackers, Files: Tiki File Gallery. Tiki is the the most popular alternative to SharePoint on alternativeto.net |
SQL Server | For end user databases: Tiki Trackers. For a more traditional relational database, use the same as Tiki: MySQL or MariaDB. |
Power BI | PluginPivotTable and Plotly |
Office | Tiki Wiki CMS Groupware for most data management as it is the Free/Libre/Open Source Web Application with the most built-in features. |
Word | Tiki Wiki with or without WYSIWYG |
Excel | Tiki Spreadsheet |
PowerPoint | Tiki Slideshow |
Access | Tiki Trackers |
Outlook | JMAP |
OneNote | Tiki Notepad |
Publisher | Tiki offer very good PDF generation with mPDF and plans/ideas to improve as an Online Publishing House |
Visual Studio | For End user programming, use the existing feature set in Tiki. Especially Tiki Trackers. JavaScript, jQuery and many other Wiki Plugins can be used. For more advanced use cases, you can use Tiki as Framework or even direct PHP and JavaScript. |
Bing | We won't do a search of public data, but for all your internal data: We have a search engine, including Search within files and increasingly some Natural Language Processing (NLP) features. |
Dynamics | Tiki Trackers can be configured as a CRM, and the mail integration is being work on via JMAP |
Yammer | Tiki can be configured to make your own Social Networking site. |
Windows | Lubuntu |
System Center | not yet, but it's on the radar. |
Azure | not yet, but it's on the radar. |