See also: Comparison of general and technical information about office suites
In computing, an office suite is a collection of productivity software usually containing at least a word processor, spreadsheet and a presentation program. There are many different brands and types of office suites. Popular office suites include Microsoft Office, Google Workspace (formerly G Suite), Apache OpenOffice, and LibreOffice.
Calligra Suite – the continuation of KOffice under a new name
Collabora Online - LibreOffice core: Web based suite integrating with NextCloud and others. Native apps for Windows, macOS, Linux, Android, iOS and Chrome OS. Access files locally or to online storage servers. 
LibreOffice – independent fork of OpenOffice.org with a number of enhancements
Google Workspace – has applications like Google Docs, Sheets, and Slides
MobiSystems OfficeSuite – available for Windows, Android and iOS
Polaris Office - Available for Windows, Android, iOS and macOS.
SoftMaker Office – The current edition is available for a fee; a slightly feature-limited version is distributed for free under the name "FreeOffice". Available for Windows, Linux and Mac(2018)
Hancom Office Suite & ThinkFree Office - Available for Windows and Mac.
WPS Office – free and complete office suite, includes writer, spreadsheet, presentations, enjoys the features of small-size, easy-to-use and compatible, covering multiple platforms including Windows, Linux, Android, iOS and Mac
Yozo Office (formerly EIOffice (Evermore Integrated Office)) – a Polish / English / Japanese / French language integrated office suite. Available for Windows / Linux operating systems using Java
Office suites for Microsoft Windows only
Breadbox Office – DOS software, but has been successfully tested with Windows 3.x, Windows 95/98/98 SE/ME, Windows NT 4.0, Windows 2000 and the 32-bit versions of Windows XP, Windows Vista and Windows 7
Framework – historical but also still supported for Windows by the present developer, Selection & Functions Inc.
Gobe Productive – Originally written for BeOS by developers of the original ClarisWorks, GoBe Productive is a lightweight integrated Works-like office suite with a generous "Hassle-Free License."
Ichitaro JUST Suite 2008 – a full Japanese-language suite from JustSystems, the most direct competitor to Microsoft Office in Japan. For Windows only.
Microsoft Office – Note that while Microsoft makes both a Windows and Mac version of Office, the Windows only version is named just Microsoft Office and has a slightly different feature set than the Mac version, which is named "Microsoft Office for Mac". While both are part of the MS Office family, they are separate programs, as the Mac version is not simply a port of the Windows version. (see Office suites for Mac OS X only section below).
Giggle Computer Suite - an open source productivity suite
Office suites for DOS
Breadbox Office – a word processor, spreadsheet, address book and drawing program. It is part of a broader software package called Breadbox Ensemble which also includes programs such as email, web-browser and HTML editor. Breadbox Ensemble runs under the GEOS (16-bit operating system) and effectively requires a version of DOS to be installed on the host system.
Corel WordPerfect for DOS – a word processor, spreadsheet, and presentation software from Corel (containing WordPerfect 6.2, Quattro Pro 5.6, Presentations 2.1, and Shell 4.0c)
Office suites for macOS only
Open source suites
NeoOffice – a Mac-specific open-source software development project dedicated to integrating LibreOffice with native features of macOS, in addition to an aesthetic and design language suited to said operating system. While the source code is available for free, developers charge for the binary version of this application.
iWork – Apple Inc.'s Mac-only office suite. Includes Pages for word-processing, Numbers for spreadsheets, and Keynote for presentations. iWork replaces the now-discontinued AppleWorks suite.
Microsoft Office for Mac – Microsoft's office suite for macOS. Since Microsoft Office for Mac 2011, the suite requires an Intel-based Mac.Prior editions ran on both PowerPC systems and Intel based systems using Rosetta.
Office suites for Unix/Unix-like operating systems only
Free software suites
AUIS – an office suite developed by Carnegie Mellon University and named after Andrew Carnegie
Siag Office – a free office suite for Unix systems. Primarily written by programmer Ulric Erikkson, with contributions from other authors. Includes a word processor, a spreadsheet, and an animation program.
Collabora Online - enterprise-ready edition of LibreOffice. Text, Spreadsheet, Presentation. Native apps for Android, iOS and Chrome OS. Optimised screen sizes for smartphone and tablet.
LibreOffice for Android – currently under development led by The Document Foundation, Smoose, B.V., and Collabora
AndrOpen Office – a non-official port of Apache OpenOffice for Android
MobiSystems OfficeSuite (Android, iOS and Windows)
Microsoft Office Mobile (Android, iOS and Windows Mobile/Phone)
Documents To Go (Android and others)
Google Workspace – Google Docs, Sheets, and Slides
WPS Office, Free and complete office suite, includes writer, spreadsheet, presentations, enjoys the features of small-size, easy-to-use and compatible, covering multiple platforms including Windows, Linux, Android, iOS and Mac
Google Docs suite – Google Docs, Sheets, and Slides – an AJAX-based online office suite from Google. The suite includes a word processor, a spreadsheet program, and a presentation editor. Available free and as the enterprise service Google Workspace.
ONLYOFFICE Personal – online office suite; combines text, spreadsheet and presentation editors
Office Online – online office suite from Microsoft which is based on OneDrive. It includes a word processor, a spreadsheet, a presentation application and a notetaking program. Allow users to create, edit, save and share documents.
Zoho Office Suite – free online office suite from Zoho Corporation. Includes a word processor, spreadsheet, presentations, and collaboration groupware.
iWork for iCloud – a free-to-use but somewhat feature-limited online version of Apple's iWorks office suite, accessible using both Mac and PC web browsers.
Open source suites
Collabora Online - web based, integrates with NextCloud and others. Native apps for Windows, macOS, Linux, Android, iOS and Chrome OS, access files locally or can connect to online storage servers.
Feng Office (formerly OpenGoo) – open source, fully featured online office suite. The application can be downloaded and installed on a server.
LibreOffice Online – currently under development led by The Document Foundation, Collabora and IceWarp with a projected initial release in the beginning of 2016.
ONLYOFFICE Community Server – open source online office suite that can be downloaded and deployed on a server
Tiki Wiki CMS Groupware – full-featured web application, which includes a spreadsheet and webmail
ONLYOFFICE – online office suite integrated with document and project management toolset and CRM system. It includes a word processor, spreadsheet and presentation program written in HTML5 using Canvas.
Simdesk – online office suite from Simdesk Technologies, Inc. This suite offers partial compatibility with the Microsoft Office file formats (Word, Excel, and Powerpoint). With a monthly subscription to Simdesk Services (costing $3.50 – $20 per month), one is allowed to install the application anywhere. (no longer available)
ThinkFree Office – office suite written in Java, from ThinkFree, Inc. It includes a word processor (Write), a spreadsheet (Calc), and a presentation program (Show). For Microsoft Windows, Linux, and Mac OS X.
Discontinued office suites
AppleWorks was released for the Apple II in 1984, then rewritten as ClarisWorks for the Apple IIGS (1988) and Macintosh (1991). ClarisWorks continued as AppleWorks after being bought by Apple, and GoBe Productive was developed using ideas from the original. Apple discontinued this suite after the release of iWork '08 in August 2007.
IBM Lotus SmartSuite – for OS/2, Windows 9x, NT, 2000 and XP.
Jambo OpenOffice, an abandoned project to translate the OpenOffice.org project into Swahili.
Lotus Jazz – Mac sister product to Lotus Symphony
Lotus Symphony – Following the popularity of office suites made by competitors, the makers of the wildly popular Lotus 123, tried their hand at a suite for DOS. (Name resurrected by IBM in September 2007 as IBM Lotus Symphony)
Microsoft Works – discontinued in 2009 and replaced by Microsoft Office 2010 Starter Edition. 4.0 is the last version for Mac.
Open Access – integrated software by Software Products International (SPI)
Q&A – featured a flat file database whose "intelligent assistant" could answer natural language questions, and integrated word processor
StarOffice – discontinued except as part of paid Solaris licenses; continued as open source suite OpenOffice.org, which subsequent versions of StarOffice were based on
^Mehrotra, Pranob (2020-12-01). "Collabora Office suite gets a new layout for Android tablets and Chromebooks". XDA-Developers. Retrieved 2021-01-15. Collabora Office is a popular open-source alternative to the Microsoft Office suite. It’s based on Libre Office, and it’s available on a variety of platforms, including Windows, Linux, iOS, and Android. This year in July, a major update for the office suite brought support for Chrome OS devices.