Skip to content

i3 vs Okular

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

i3 icon
i3
Okular icon
Okular

i3 vs Okular: The Verdict

⚡ Summary:

i3: i3 is a tiling window manager for Linux and other Unix-like operating systems. It is designed to be simple, fast, and lightweight while still being customizable and flexible. i3 organizes application windows in a tree-like structure and allows efficient window switching and placement.

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.

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 i3 Okular
Sugggest Score — —
Category Os & Utilities Office & Productivity
Pricing Free Free

Product Overview

i3
i3

Description: i3 is a tiling window manager for Linux and other Unix-like operating systems. It is designed to be simple, fast, and lightweight while still being customizable and flexible. i3 organizes application windows in a tree-like structure and allows efficient window switching and placement.

Type: software

Pricing: Free

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

Key Features Comparison

i3
i3 Features
  • Tiling window manager
  • Tree-like window organization
  • Customizable keyboard shortcuts
  • Simple, lightweight and fast
  • Support for multiple workspaces
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

Pros & Cons Analysis

i3
i3

Pros

  • Very efficient use of screen space
  • Highly customizable
  • Light on system resources
  • Keyboard-driven workflow
  • Stable and mature codebase

Cons

  • Steep learning curve
  • Manual configuration required
  • Not designed for touchscreens
  • Less flexibility in window arrangements
  • Less integrated with desktop environment
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

Pricing Comparison

i3
i3
  • Free
Okular
Okular
  • Free

Related Comparisons

Adobe Acrobat Reader
vs i3 vs Okular
Adobe Acrobat DC
vs i3 vs Okular
SumatraPDF
vs i3 vs Okular
Hyprland
vs i3 vs Okular
GridWM (Grid Window Manager)
vs i3 vs Okular

Learn More About Each Product

i3
i3
Reviews, pricing & alternatives →
Okular
Okular
Reviews, pricing & alternatives →

Ready to Make Your Decision?

Explore more software comparisons and find the perfect solution for your needs

i3 Alternatives
Okular Alternatives
Browse More Software