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FBReader vs ONLYOFFICE

Professional comparison and analysis to help you choose the right software solution for your needs.

FBReader icon
FBReader
ONLYOFFICE icon
ONLYOFFICE

FBReader vs ONLYOFFICE: The Verdict

⚡ Summary:

FBReader: FBReader is a popular and customizable ebook reader available on multiple platforms including Windows, Linux, Android and iOS. It supports a variety of ebook formats and allows for adjustments to fonts, colors, margins and more for a personalized reading experience.

ONLYOFFICE: ONLYOFFICE is an open-source office suite that includes online document editors for text documents, spreadsheets, and presentations. It can be integrated into various platforms to provide editing capabilities.

Both tools serve their respective audiences. Compare the features, pricing, and user ratings above to determine which best fits your needs.

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature FBReader ONLYOFFICE
Sugggest Score — —
Category News & Books Office & Productivity
Pricing Open Source Open Source

Product Overview

FBReader
FBReader

Description: FBReader is a popular and customizable ebook reader available on multiple platforms including Windows, Linux, Android and iOS. It supports a variety of ebook formats and allows for adjustments to fonts, colors, margins and more for a personalized reading experience.

Type: software

Pricing: Open Source

ONLYOFFICE
ONLYOFFICE

Description: ONLYOFFICE is an open-source office suite that includes online document editors for text documents, spreadsheets, and presentations. It can be integrated into various platforms to provide editing capabilities.

Type: software

Pricing: Open Source

Key Features Comparison

FBReader
FBReader Features
  • Supports a wide variety of ebook formats including EPUB, PDF, MOBI, FB2, RTF, HTML, TXT, CHM and more
  • Customizable interface with options to adjust font, text size, colors, margins, etc
  • Built-in dictionary/wikipedia lookup
  • Bookmarks, highlights and notes
  • Sync reading position across devices
  • Supports plugins and extensions
  • Text-to-speech
  • Multiple language support
ONLYOFFICE
ONLYOFFICE Features
  • Word processor
  • Spreadsheet editor
  • Presentation editor
  • Collaborative editing
  • Version history
  • Third-party integration
  • Plugins and extensions
  • Mobile apps

Pros & Cons Analysis

FBReader
FBReader

Pros

  • Free and open source
  • Highly customizable reading experience
  • Available on many platforms
  • Active development and support

Cons

  • Limited formatting options for some ebook types
  • Syncing highlights/notes requires plugin
  • Some platforms not officially supported
ONLYOFFICE
ONLYOFFICE

Pros

  • Free and open source
  • Good compatibility with Microsoft Office formats
  • Real-time co-editing
  • Available on multiple platforms
  • Customizable and extensible

Cons

  • Limited features compared to Microsoft Office
  • Limited template options
  • Can be slow with large documents
  • Limited charts and analysis tools in spreadsheet editor

Pricing Comparison

FBReader
FBReader
  • Open Source
ONLYOFFICE
ONLYOFFICE
  • Open Source

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Learn More About Each Product

FBReader
FBReader
Reviews, pricing & alternatives →
ONLYOFFICE
ONLYOFFICE
Reviews, pricing & alternatives →

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