The Best Open Source Okular AlternativesTop PDF & Ebook Readers like Okular

The best open source alternative to Okular is SumatraPDF. If that doesn't suit you, our users have ranked more than 100 alternatives to Okular and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Okular are Evince, MuPDF, Firefox PDF Viewer (PDF.js) and Foliate.

Okular alternatives are mainly PDF Readers but may also be Ebook Readers or PDF Editors. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Okular.

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Android + Open Source

Okular

382

Free • Open Source
PDF Reader

Multi-platform, fast and packed with features, Okular allows you to read PDF documents, comics and EPub books, browse...

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Okular alternatives page was last updated

SumatraPDF
Is this is a good alternative?
Yes
No
Free • Open Source
PDF Reader
Ebook Reader
Text to Speech Service
Windows
102 SumatraPDF alternatives
Sumatra PDF is a free PDF, eBook (ePub, Mobi), XPS, DjVu, CHM, Comic Book (CBZ and CBR) viewer for Windows.
- - SumatraPDF is the most popular Windows alternative to Okular.
- - SumatraPDF is the most popular Open Source & free alternative to Okular.
Suggest and vote on features
SumatraPDF Features
1. LightweightSumatraPDF consumes less device resources compared to similar apps.
2. Ad-freeSumatraPDF doesn't contain any form of external advertising.
3. PortableSumatraPDF can be used from a USB stick or similar with no prior installation.
4. No registration requiredYou can use most of the features in SumatraPDF without registration.
5. Works OfflineSumatraPDF can be used without the need to connect to the internet.
6. PDF annotationSumatraPDF support PDF Annotation for highlighting, notes etc
7. Dark ModeSumatraPDF supports dark mode for comfortable usage in low light conditions.
8. Privacy focusedSumatraPDF is considered a privacy friendly alternative.
9. Text to SpeechSumatraPDF allows you to transform written text into spoken text.
Low memory usage
Optimal performance
Tabbed interface
Multi Format Reader
Highlighter
Global bookmarks
Quick search
XOD File Reader
OXPS File Reader
AzW Reader
Comments about SumatraPDF as a Alternative to Okular
Some users think SumatraPDF is a great Okular alternative, some don't.
Guest
Sumatra doesn't have comments and fill forms functionality as Okular does.
Negative comment •
13

idlesHand
Tabs! and is also open source
Positive comment •
0
Evince
Is this is a good alternative?
Yes
No
Free • Open Source
PDF Reader
Linux
PortableApps.com
110 Evince alternatives
Evince (or GNOME Document Viewer) is a document viewer for multiple document formats: PDF, Postscript, djvu, tiff, dvi, XPS, SyncTex support with gedit, comics books (cbr,cbz,cb7 and cbt) and others. See Supported Document Formats for details.
Suggest and vote on features
Evince Features
1. LightweightEvince consumes less device resources compared to similar apps.
2. PDF annotationEvince support PDF Annotation for highlighting, notes etc
3. PortableEvince can be used from a USB stick or similar with no prior installation.
4. Dark ModeEvince supports dark mode for comfortable usage in low light conditions.
5. Ad-freeEvince doesn't contain any form of external advertising.
6. Works OfflineEvince can be used without the need to connect to the internet.
7. No registration requiredYou can use most of the features in Evince without registration.
Invert colours
Multiple languages
Handwriting recognition
Windows Compatible
Minimalistic
Comments about Evince as a Alternative to Okular
Most users think Evince is a great Okular alternative.
dszalkowski
Gnome's project supplies no link of a Windows version.
Negative comment •
1

Guest
There is windows compatible version this program.
Positive comment •
0
MuPDF
Is this is a good alternative?
Yes
No
Free • Open Source
PDF Reader
Windows
Linux
Android
iPhone
iPad
F-Droid
Xfce
84 MuPDF alternatives
MuPDF is a highly versatile, customizable PDF and XPS interpreter solution that can be used across a wide range of applications as a PDF renderer, viewer, or toolkit.
Suggest and vote on features
MuPDF Features
1. LightweightMuPDF consumes less device resources compared to similar apps.
2. PortableMuPDF can be used from a USB stick or similar with no prior installation.
3. PDF annotationMuPDF support PDF Annotation for highlighting, notes etc
4. Ad-freeMuPDF doesn't contain any form of external advertising.
Vim key mapping
Firefox PDF Viewer (PDF.js)
Is this is a good alternative?
Yes
No
Free • Open Source
PDF Reader
Google Chrome
Opera
Firefox
72 Firefox PDF Viewer (PDF.js) alternatives
PDF Viewer (aka pdf.js) is a new revolutionary extension using web standard technologies that allows you to display within Mozilla Firefox almost all PDF files found on the web without a plugin.
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Firefox PDF Viewer (PDF.js) Features
1. LightweightFirefox PDF Viewer (PDF.js) consumes less device resources compared to similar apps.
2. PDF annotationFirefox PDF Viewer (PDF.js) support PDF Annotation for highlighting, notes etc
Browser integration
Add/remove pages
Browser extension
Opera extension
Support for Javascript
Comments about Firefox PDF Viewer (PDF.js) as a Alternative to Okular
pros, cons and recent comments
Guest
It works well and it works in Firefox
Positive comment •
0
Foliate
Is this is a good alternative?
Yes
No
Free • Open Source
Ebook Reader
Ebook Library
Text to Speech Service
Linux
BSD
Snapcraft
Flathub
42 Foliate alternatives
A simple and modern eBook viewer for Linux desktops.
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Foliate Features
1. Dark ModeFoliate supports dark mode for comfortable usage in low light conditions.
2. Built-in DictionaryFoliate has a built-in dictionary where you can look up broader definitions of words.
3. Works OfflineFoliate can be used without the need to connect to the internet.
4. Privacy focusedFoliate is considered a privacy friendly alternative.
5. Full-Text SearchFoliate lets you search for specific words or phrases from inside a document or database.
6. Text to SpeechFoliate allows you to transform written text into spoken text.
7. No registration requiredYou can use most of the features in Foliate without registration.
8. Ad-freeFoliate doesn't contain any form of external advertising.
9. Support for ThemesYou can use themes and templates to change the look and feel of Foliate.
Text Highlighting
Export annotations
Text annotation
Flipping pages
Plain text flows
Multiple languages
KOReader
Is this is a good alternative?
Yes
No
Free • Open Source
Ebook Reader
PDF Reader
Ebook Library
Linux
Android
AppImageHub
Kobo
PocketBook Reader
Flathub
F-Droid
Kindle Fire
38 KOReader alternatives
KOReader is a document viewer for E Ink devices. Supported fileformats include EPUB, PDF, DjVu, XPS, CBT, CBZ, FB2, PDB, TXT, HTML, RTF, CHM, DOC, MOBI and ZIP files. It’s available for Kindle, Kobo, PocketBook, Android and desktop Linux.
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KOReader Features
1. Built-in DictionaryKOReader has a built-in dictionary where you can look up broader definitions of words.
2. Ad-freeKOReader doesn't contain any form of external advertising.
3. Dark ModeKOReader supports dark mode for comfortable usage in low light conditions.
Wallabag integration
Wikipedia integration
Koodo Reader
Is this is a good alternative?
Yes
No
Free • Open Source
Ebook Reader
PDF Reader
Text to Speech Service
Mac
Windows
Linux
Online
Flathub
11 Koodo Reader alternatives
Koodo Reader is an all-in-one e-book reader that can help you better manage and study your e-books. It's free and open-source.
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Koodo Reader Features
1. Dark ModeKoodo Reader supports dark mode for comfortable usage in low light conditions.
2. PDF annotationKoodo Reader support PDF Annotation for highlighting, notes etc
3. Works OfflineKoodo Reader can be used without the need to connect to the internet.
4. No registration requiredYou can use most of the features in Koodo Reader without registration.
5. Ad-freeKoodo Reader doesn't contain any form of external advertising.
6. Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
7. Privacy focusedKoodo Reader is considered a privacy friendly alternative.
8. Text to SpeechKoodo Reader allows you to transform written text into spoken text.
FOSS
Customizable
Web-Based
Document Viewer
Is this is a good alternative?
Yes
No
Free • Open Source
PDF Reader
Ebook Reader
Android
Android Tablet
F-Droid
139 Document Viewer alternatives
Document Viewer is a highly customizable document viewer for Android, fork of the last GPL version of EBookDroid .
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Document Viewer Features
Customizable
Discontinued
The last version (2.7.4) was released in March 2016.
Skim
Is this is a good alternative?
Yes
No
Free • Open Source
PDF Reader
Note-taking Tool
Mac
78 Skim alternatives
Skim is a PDF reader and note-taker for OS X. It is designed to help you read and annotate scientific papers in PDF, but is also great for viewing any PDF file.
Suggest and vote on features
Skim Features
1. LightweightSkim consumes less device resources compared to similar apps.
2. PDF annotationSkim support PDF Annotation for highlighting, notes etc
3. Ad-freeSkim doesn't contain any form of external advertising.
Clean design
Note extraction
Export annotations
Opinions about Skim as a Alternative to Okular
This alternative is disputed. Skim is still a legitimate Okular alternative, but it might have issues that some users think are important.
MJ PDF Reader
Is this is a good alternative?
Yes
No
Free • Open Source
PDF Reader
Android
57 MJ PDF Reader alternatives
A totally free of cost and ads PDF documents reader.
Suggest and vote on features
MJ PDF Reader Features
1. LightweightMJ PDF Reader consumes less device resources compared to similar apps.
2. Ad-freeMJ PDF Reader doesn't contain any form of external advertising.
3. Works OfflineMJ PDF Reader can be used without the need to connect to the internet.
4. Dark ModeMJ PDF Reader supports dark mode for comfortable usage in low light conditions.
5. Privacy focusedMJ PDF Reader is considered a privacy friendly alternative.
6. Full-Text SearchMJ PDF Reader lets you search for specific words or phrases from inside a document or database.
7. No registration requiredYou can use most of the features in MJ PDF Reader without registration.