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Okular vs Xabber

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

Okular icon
Okular
Xabber icon
Xabber

Okular vs Xabber: The Verdict

⚡ Summary:

Okular: Okular is a versatile document viewer software for KDE. It supports viewing PDFs, EPUBs, ODT, and other document formats. Okular allows annotating, highlighting, commenting on documents as well as filling forms.

Xabber: Xabber is an open-source chat client for Windows, Linux, MacOS, Android, and iOS that allows users to connect to multiple chat networks and services like Google Talk, Facebook, Jabber/XMPP, MSN, Yahoo and more from one application.

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 Okular Xabber
Sugggest Score — —
Category Office & Productivity Social & Communications
Pricing Free Open Source

Product Overview

Okular
Okular

Description: Okular is a versatile document viewer software for KDE. It supports viewing PDFs, EPUBs, ODT, and other document formats. Okular allows annotating, highlighting, commenting on documents as well as filling forms.

Type: software

Pricing: Free

Xabber
Xabber

Description: Xabber is an open-source chat client for Windows, Linux, MacOS, Android, and iOS that allows users to connect to multiple chat networks and services like Google Talk, Facebook, Jabber/XMPP, MSN, Yahoo and more from one application.

Type: software

Pricing: Open Source

Key Features Comparison

Okular
Okular Features
  • Supports viewing PDF, PostScript, DjVu, CHM, XPS, ePub and other formats
  • Allows annotating, highlighting and adding comments to PDFs
  • Has different view modes like single page, facing, overview grid
  • Supports tabs for opening multiple documents
  • Has presentation mode for slideshows
  • Can fill interactive PDF forms
  • Allows saving filled forms as PDF or text
  • Has search functionality to find text in documents
  • Can encrypt PDF files
  • Has document information and metadata viewer
  • Supports table of contents navigation
  • Has different reflow modes for reading ePubs
  • Can print documents to system printer
Xabber
Xabber Features
  • Multi-protocol support (XMPP/Jabber, Google Talk, Facebook, MSN, Yahoo etc)
  • Group chat
  • Push notifications
  • File transfers
  • Encryption
  • Customizable interface

Pros & Cons Analysis

Okular
Okular

Pros

  • Free and open source
  • Clean and intuitive interface
  • Good performance with large PDFs
  • Lots of annotation and markup tools
  • Supports many document formats
  • Available on Linux, Windows, macOS

Cons

  • Limited format support compared to some alternatives
  • Annotation features may be limited for some users
  • No cloud storage integration
  • Less features than paid alternatives
Xabber
Xabber

Pros

  • Open source and free
  • Available on multiple platforms
  • Supports many chat protocols
  • Good security features
  • Active development and updates

Cons

  • Some features only in paid version
  • Setup can be complex for less tech-savvy users
  • Some bugs and issues reported
  • Lacks some features of proprietary apps

Pricing Comparison

Okular
Okular
  • Free
Xabber
Xabber
  • Open Source

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Learn More About Each Product

Okular
Okular
Reviews, pricing & alternatives →
Xabber
Xabber
Reviews, pricing & alternatives →

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