10 Best Free Office Suites for Windows
You may need programs to do office work (writing documents, crunching numbers, creating presentations). Most well-known programs cost a lot of money. However, there are some great free options that offer everything you need without spending a single dollar.
In this article, you'll see the 10 best free office suites you can install on your Windows computer. We'll show you the pros and cons of each one so you can choose the best one for your needs.
📋 Contents
1. Apache OpenOffice
Apache OpenOffice is a complete and free office suite, suitable for professional and personal use. It includes programs for word processing, spreadsheets, presentations, graphics and database management. It supports multiple file formats, including Microsoft Office, and has macro capabilities for task automation. In addition, the development community is constantly improving the program, while Greek language support is complete.
Advantages
- Free and fully open
- Supports many file types
- Includes all essential office tools
- Works on Windows, Mac and Linux
Disadvantages
- Slow updates compared to other suites
- Older and less modern design
- The interface may seem complicated to beginners
2. Ashampoo Office Free
Ashampoo Office Free offers three powerful programs for word processing, spreadsheets and presentations. It is highly compatible with Microsoft Office files, allowing for easy document exchange without formatting issues. The user interface is simple and friendly, while the suite is lightweight and does not require a powerful computer. It also supports basic tools for printing, PDF creation and image embedding.
Advantages
- Compatible with Microsoft Office
- Light and fast
- Friendly and easy to use
- Good support for Greek language
Disadvantages
- Limited tools and features
- Few expansion options
- Doesn't support advanced formatting like LibreOffice
3 Atlantis Word Processor
Atlantis Word Processor is ideal for users who need a lightweight yet powerful word processing program. It offers full formatting capabilities, including text styles, headers, footers, tables, and images. It supports file encryption for security and is extremely fast even on older computers. It is suitable for writing books, reports, or other complex documents.
Advantages
- Very light and fast
- Secure with document encryption
- Low energy consumption
- Word and RTF format support
Disadvantages
- For text editing only
- Not completely free, with some paid features
4 LibreOffice
LibreOffice is one of the most popular free office suites in the world. It includes a word processor, spreadsheet, presentation, drawing, and database programs. It has a large development community that provides regular updates, new features, and bug fixes. It fully supports Microsoft Office files, as well as many other formats, and offers options for macros, templates, and extensions.
Advantages
- Full office suite
- Compatible with Microsoft Office
- Frequent updates and improvements
- Support for multiple languages, including Greek
Disadvantages
- Older interface design
- Can be slow with very large documents
5 ONLYOFFICE Documents
ONLYOFFICE Documents is a modern office suite that combines desktop work with online collaboration (cloud). It supports document, spreadsheet and presentation editing and is fully compatible with Microsoft Office files. It allows simultaneous collaboration of multiple users in real time, tracking changes, comments and version control. Ideal for teams working from different devices.
Advantages
- Excellent compatibility with Microsoft Office
- Real-time collaboration
- Modern and clean user interface
- Availability on Windows, Linux and online
Disadvantages
- Can be heavy on older computers
- Limited functionality without an internet connection
- Requires an account for full use of cloud features
6 SoftMaker Free Office
SoftMaker FreeOffice is a free, full-featured office suite that includes a word processor, spreadsheets, and presentations. Its compatibility with Microsoft Office files makes it easy to switch from other suites. It is fast, lightweight, and does not require a powerful computer, while it has a modern and clean user interface. It also supports many languages, including Greek, and offers basic templates and fonts.
Advantages
- Very good compatibility with Microsoft Office
- Fast and light
- User friendly
- Basic template and font support
Disadvantages
- Advanced tools require paid version
- Fewer font and template options than other suites
7 SSuite NoteBook Editor
SSuite NoteBook Editor is a simple and lightweight program for quick text editing. It requires no installation and opens immediately, making it ideal for taking notes or quickly writing texts. It provides basic formatting tools, such as bold, italics, bullets and numbered lists. Ideal for users who need a portable and fast solution.
Advantages
- Very light and fast
- No installation required
- Ideal for quick use and notes
Disadvantages
- Very basic program without advanced tools
- Difficulty managing large documents
8 SSuite Office Premium HD
SSuite Office Premium HD is designed for high-resolution screens, with large buttons and easy-to-read menus. It includes programs for text, spreadsheets, presentations and other office tools. It is fast, does not require a powerful computer and offers a clean work environment. Ideal for users who prefer larger interface elements and ease of navigation.
Advantages
- Many applications in one suite
- Light and fast
- Large buttons and menus for better visibility
- Does not require a powerful computer
Disadvantages
- Old interface design
- Limited support for certain file types
9 WPS Office
WPS Office is a popular free suite that includes WPS Writer, Spreadsheets and Presentation. It has a modern and friendly user interface reminiscent of Microsoft Office and fully supports Office files. It also offers cloud, collaboration and real-time document sharing features. It supports the Greek language and multiple platforms, including Windows, Linux, Android and iOS.
Advantages
- Very good compatibility with Microsoft Office
- Modern and attractive user interface
- Cloud and collaboration capabilities
- Available on many platforms
Disadvantages
- Contains ads in the free version
- Some tools require registration or payment
10 Rizonesoft Office
Rizonesoft Office is a free, lightweight office suite that includes word processing, spreadsheets, and presentations. It requires no installation, runs quickly, and is ideal for personal use or small businesses that need basic functionality at no cost. It supports simple formatting, image insertion, and tables, but lacks the advanced features of other suites.
Advantages
- Very light and free
- No installation required
- Basic and reliable office functions
- Fast use on old computers
Disadvantages
- Not fully compatible with Microsoft Office
- Fewer tools and advanced features
🎯 What to choose?
If you want a full suite: The LibreOffice and WPS Office are the best options, offering all the tools you could need for word processing, spreadsheets, presentations, and more.
If you want good compatibility with Microsoft Office: The ONLY OFFICE and SoftMaker Free Office are excellent options, as they open and save Office files without formatting issues.
If you want a light and quick solution: The Atlantis Word Processor light and SSuite NoteBook Editor they are ideal for simple use, notes or quick text editing, without consuming many computer resources.
If you want basic tools without installation: The Rizonesoft Office and SSuite Office Premium HD They offer lightweight and easy-to-use programs for simple tasks and small businesses.
(I.e. Last updated: October 2025
🏢 Comparison Table
| Software | Size | Word processors | Spreadsheet | Presentation | PDF Support | cloud sync | Mobile App | Αξιολόγηση |
|---|---|---|---|---|---|---|---|---|
| 📊 Apache OpenOffice | ~150MB | YES | YES | YES | Limited | NO | NO | ★★★★★ |
| 🎯 Ashampoo Office Free | ~200MB | YES | YES | YES | YES | NO | NO | ★ ★ ★ ★★ |
| 📝 Atlantis Word Processor | ~5MB | YES | NO | NO | Basic | NO | NO | ★★★★★ |
| 🦎 LibreOffice | ~300MB | YES | YES | YES | YES | Limited | NO | ★ ★ ★ ★ ★ |
| ☁️ ONLYOFFICE Documents | ~400MB | YES | YES | YES | YES | YES | YES | ★ ★ ★ ★ ★ |
| 🚀 SoftMaker FreeOffice | ~250MB | YES | YES | YES | YES | NO | Android | ★ ★ ★ ★★ |
| 📓 SSuite NoteBook Editor | ~8MB | YES | NO | NO | Basic | NO | NO | ★★★★★ |
| 💎 SSuite Office Premium HD | ~50MB | YES | YES | YES | Basic | NO | NO | ★★★★★ |
| 🌟 WPS Office | ~200MB | YES | YES | YES | YES | YES | YES | ★ ★ ★ ★ ★ |
| ⚡ Rizonesoft Office | ~100MB | YES | YES | Basic | Basic | NO | NO | ★★★★★ |
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