Best Free Open Source Office Software on Windows 10 For School & Business 2021 English Edition
The Complete List of Free Opensource Office Suite Software Available on Windows 10 For School & Work
1. Calligra Suite
Calligra Suite is an office and graphic art suite by KDE. It is available for desktop PCs, tablet computers, and smartphones.
It contains applications for word processing, spreadsheets, presentation, vector graphics, and editing databases.
2. Apache OpenOffice
Apache OpenOffice is the leading open-source office software suite for word processing, spreadsheets, presentations, graphics, databases and more. It is available in many languages and works on all common computers.
It stores all your data in an international open standard format and can also read and write files from other common office software packages. It can be downloaded and used completely free of charge for any purpose.
3. Libre Office
Libre Office is a free and open-source office suite software, a project of The Document Foundation. It was forked in 2010 from OpenOffice.org, which was an open-sourced version of the earlier Star Office Suite. The Libre Office suite consists of programs for word processing, creating and editing of spreadsheets, slideshows, diagrams and drawings, working with databases, and composing mathematical formulae.
As its native file format to save documents for all of its applications, LibreOffice uses the Open Document Format for Office Applications (ODF), or OpenDocument, an international standard developed jointly by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). Libre Office also supports the file formats of most other major office suites, including Microsoft Office, through a variety of import and export filters.
4. Only Office
Only Office, stylized as ONLY OFFICE, is a free software office suite developed by Ascensio System SIA, a company headquartered in Riga, Latvia. It features online and offline document editors, platform for document management, corporate communication, mail and project management tools.
Only Office Desktop is an offline version of Only Office editing suite software. Desktop application supports collaborative editing features when connected to the portal, Nextcloud or ownCloud. Application is offered free of charge for both personal and commercial usage.
Desktop editors are cross-platform available for Windows 10, 8.1, 8, 7, Vista, and XP (x32 and x64), Debian, Ubuntu and other Linux distributions based on RPM, Mac OS 10.10 and newer. Besides platform-specific versions there is also a portable option. OnlyOffice Desktop Editors are available for installation as a snap package and AppImage.
5. AbiWord
AbiWord is a free and open-source software word processor. It is written in C++ and since version 3 it is based on GTK+ 3. The name “AbiWord” is derived from the root of the Spanish word “abierto”, meaning “open”.
AbiWord was originally started by SourceGear Corporation as the first part of a proposed AbiSuite but was adopted by open source developers after SourceGear changed its business focus and ceased development.
It now runs on Linux, ReactOS, Solaris, AmigaOS 4.0 (through its Cygwin X11 engine), MeeGo (on the Nokia N9 smartphone), Maemo (on the Nokia N810) QNX and other operating systems. AbiWord is part of the AbiSource project which develops a number of office-related technologies.
6. WPS Office
WPS Office is an office suite for Microsoft Windows, macOS, Linux, iOS and Android .Developed by Zhuhai-based Chinese software developer Kingsoft. WPS Office is made up of three primary components: WPS Writer, WPS Presentation, and WPS Spreadsheet.
The personal basic version is free to use. A fully featured professional-grade version is also available for a subscription fee. WPS Office 2016 was released in 2016. As of 2019, the Linux version is developed and supported by a volunteer community rather than Kingsoft itself. By 2019, WPS Office reached a number of more than 310 milion monthly active users.
The product has had a long history of development in China under the name “WPS” and “WPS Office”. For a time, Kingsoft branded the suite as “KSOffice” in an attempt to gain an international market foothold, but later returned to “WPS Office”. Since WPS Office 2005 the user interface is similar to that of Microsoft Office products, and supports Microsoft document formats besides native Kingsoft formats.
7. SoftMaker FreeOffice
SoftMaker Office is an office suite developed since 1987 by the German company SoftMaker Software GmbH based in Nuremberg. SoftMaker is available as a one-time purchase option, in Standard and Professional editions, as well as a subscription-based version known as SoftMaker Office NX (available as Home and Universal editions).
A freeware version is released as well, under the name of SoftMaker FreeOffice. FreeOffice supersedes SoftMaker Office 2006 and 2008, which were released as freeware.
SoftMaker Office has similar functionality to other office suites such as Microsoft Office or LibreOffice, and can also run from USB flash drives and supports integrated reference works. Multi-language spell-checking, hyphenation and thesaurus is supported, and it has an integrated five-language translation dictionary (English, German, French, Italian, and Spanish).
It has its own native formats, and can read and write file formats of Microsoft Office, OpenDocument format (word processor only), RTF and HTML. Support for the OpenDocument spreadsheet (ODS) format was added in the Anniversary update released for SoftMaker Office 2018. It can export to PDF and EPUB.
The user interface is similar to the Ribbon utilized in Microsoft Office 2007 and later, and there is an option to use menus and toolbars instead of the Ribbon. A dark mode is available. Documents can be opened as tabs in a single window, to allow easy switching between multiple documents.
