All › Productivity › Okular

Okular

KDE's universal document viewer

An open-source document viewer from KDE for PDF, EPUB, comic books and more, with annotations and form filling.

Visit Okular ↗

Pricing: Free

Platforms: Linux, Windows

Categories: Productivity, Reading

Okular is an alternative to

Adobe Reader

Okular compared with similar tools

Product	Price	Open source	Self-host	Platforms
Okular	Free	Yes	–	Linux, Windows
Skim	Free	Yes	–	Mac
SumatraPDF	Free	Yes	–	Windows
Taskwarrior	Free	Yes	–	Mac, Linux, Windows
Documenso	Free plan	Yes	Yes	Web, Self-hosted, API
calibre	Free	Yes	–	Windows, Mac, Linux
Readwise Reader	Paid	–	–	Web, Mac, Windows, iOS, Android, Browser extension

Similar to Okular

Skim

Free PDF reader and note-taker for macOS

Skim is an open-source PDF viewer for the Mac designed for reading and annotating scientific papers, with notes and highlights.

Free · Mac · Website ↗

SumatraPDF

Lightweight, open-source PDF and ebook reader for Windows

A small, fast, open-source reader for PDF, EPUB, MOBI, XPS, DjVu and comic book files on Windows.

Free · Windows · Website ↗

Taskwarrior

Command-line task manager

A free, open-source command-line tool for managing to-do lists with tags, projects, priorities, filters and reports. For terminal users who want fast task management.

Free · Mac, Linux, Windows · Website ↗

Documenso

Open-source DocuSign alternative for e-signatures

An open-source document signing platform for sending and signing documents electronically, available as cloud or self-hosted.

Free plan · Web, Self-hosted, API · Website ↗

calibre

Free e-book manager, converter and reader

calibre is an open-source app for organizing an e-book library, converting between formats, editing e-books and syncing them to e-readers.

Free · Windows, Mac, Linux · Website ↗

Readwise Reader

Read-later app for articles, PDFs, newsletters and RSS

A reading app that collects web articles, PDFs, EPUBs, newsletters, RSS feeds and YouTube transcripts in one place with highlighting and AI summaries.

Paid · Web, Mac, Windows, iOS, Android, Browser extension · Website ↗

Mailspring

Free, fast desktop email client

An open-source desktop email client with a unified inbox, snooze, send later and optional paid features like read receipts.

Free plan · Mac, Windows, Linux · Website ↗

PDF Expert

PDF editor and reader for Mac, iPhone and iPad

A PDF app from Readdle for reading, annotating, editing text and images, filling forms and signing PDFs.

Free plan · Mac, Windows, iOS · Website ↗

Questions

Is Okular free?

Okular is free.

Is Okular open source?

Yes, Okular is open source.

What platforms does Okular run on?

Okular is available for Linux, Windows.

What are some alternatives to Okular?

Similar indie products include Skim, SumatraPDF, Taskwarrior, Documenso and 4 more.

Is this your product? Submit an update.