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, LibreOffice - Draw, MuPDF and KOReader.

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Okular alternatives are mainly PDF Readers, but if you're looking for Ebook Readers or Ebook Libraries you can filter on that. Other popular filters include Android, Linux, Android + Open Source, Mac, Open Source and Windows. These are just examples - use the filter bar below to find more specific alternatives to Okular.
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Alternatives list

  1. SumatraPDF icon

    SumatraPDF

     1662 likes
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    This free, open-source viewer for Windows supports multiple formats like PDF, eBooks (ePub, Mobi), CHM, and Comic Books (CBZ, CBR). Prioritizing simplicity and speed, it offers a lightweight, portable design with a minimalist interface, catering to users seeking fast and efficient document viewing.

    108 SumatraPDF alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Windows
    SumatraPDF screenshot 1
     
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    3
    22
    Comments about SumatraPDF as an Alternative to Okular
    Guest
    Negative
    14

    Sumatra doesn't have comments and fill forms functionality as Okular does.

    Review by a new / low-activity user.
    mirellanmal
    0

    Ugly UI, logo and icon. It's nice with FOSS, but I'll go with Okular.

    idlesHand
    Positive
    0

    Tabs! and is also open source

    Okular Icon
    SumatraPDF icon

    • Some users think SumatraPDF is a great Okular alternative, some don't.

    • SumatraPDF is the most popular Windows alternative to Okular.

    • SumatraPDF is the most popular Open Source & free alternative to Okular.

    • SumatraPDF is Free and Open SourceOkular is also Free and Open Source
  2. Evince icon

    Evince

     459 likes
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    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.

    115 Evince alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Linux
    • PortableApps.com
    • Flathub
    • GNOME
    Evince screenshot 1
     
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    2
    18
    Comments about Evince as an Alternative to Okular
    dszalkowski
    Negative
    0

    Gnome's project supplies no link of a Windows version.

    Guest
    Positive
    1

    There is windows compatible version this program.

    Review by a new / low-activity user.
    Okular Icon
    Evince icon

    • Most users think Evince is a great Okular alternative.

    • Evince is the most popular Linux alternative to Okular.

    • Evince is Free and Open SourceOkular is also Free and Open Source
    • Evince is MinimalisticOkular is not according to our users
  4. LibreOffice - Draw icon

    LibreOffice - Draw

     310 likes
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    Draw lets you produce anything from a quick sketch to a complex plan, and gives you the means to communicate with graphics and diagrams. With a maximum page size of 300cm by 300cm, Draw is a an excellent package for producing technical drawings, general posters, and much else.

    97 LibreOffice - Draw alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    • PortableApps.com
    • Flathub
    LibreOffice - Draw screenshot 1
     
  5. MuPDF icon

    MuPDF

     157 likes
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    MuPDF offers a highly versatile PDF, XPS, and eBook interpreter, customizable as a renderer, viewer, or toolkit. Features include digital signatures, redactions, form filling, annotations, and page manipulation, ideal for mobile, eBooks, and embedded apps supporting Java, C++, and Python.

    89 MuPDF alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Windows
    • Linux
    • Android
    • F-Droid
    • Xfce
    MuPDF screenshot 1
     

    • MuPDF is the most popular Android alternative to Okular.

    • MuPDF is Free and Open SourceOkular is also Free and Open Source
  6. KOReader icon

    KOReader

     71 likes
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    An ebook reader application supporting PDF, DjVu, EPUB, FB2 and many more formats, running on Kindle, Kobo, PocketBook, Linux and Android devices.

    66 KOReader alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Linux
    • Android
    • AppImageHub
    • Kobo Books
    • Flathub
    • F-Droid
    • Kindle Fire
    • Android Tablet
    KOReader screenshot 1
    KOReader screenshot 2
    KOReader screenshot 3
     

    • KOReader is the most popular Android Tablet alternative to Okular.

    • KOReader is Free and Open SourceOkular is also Free and Open Source
  7. Koodo Reader icon

    Koodo Reader

     57 likes
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    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.

    28 Koodo Reader alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Flathub
    Koodo Reader screenshot 1
     

    • Koodo Reader is the most popular Web-based alternative to Okular.

    • Koodo Reader is Free and Open SourceOkular is also Free and Open Source
    • Koodo Reader is CustomizableOkular is not according to our users
  10. Firefox PDF Viewer (PDF.js) icon

    Firefox PDF Viewer (PDF.js)

     165 likes
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    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.

    82 Firefox PDF Viewer (PDF.js) alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Google Chrome
    • Opera
    • Mozilla Firefox
    Firefox PDF Viewer (PDF.js) screenshot 1
     
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    1
    Comments about Firefox PDF Viewer (PDF.js) as an Alternative to Okular
    Guest
    Positive
    1

    It works well and it works in Firefox

    Review by a new / low-activity user.
    Okular Icon
    Firefox PDF Viewer (PDF.js) icon
    • Firefox PDF Viewer (PDF.js) is Free and Open SourceOkular is also Free and Open Source
  11. Sioyek icon

    Sioyek

     22 likes
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    Sioyek is a PDF viewer with minimal interface optimized for reading research papers and technical books.

    37 Sioyek alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    Main view
     
  13. Kavita icon

    Kavita

     26 likes
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    Lightning fast with a slick design, Kavita is a rocket-fueled self-hosted digital library which supports a vast array of file formats. Install to start reading and share your server with your friends. book reader, self hosted, manga, comics, free, manhwa, e readers, electronic...

    170 Kavita alternatives

    Cost / License

    • Freemium (Subscription)
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Self-Hosted
    • Cloudron
    Kavita screenshot 1
     

    • Kavita is the most popular Self-Hosted alternative to Okular.

    • Kavita is Freemium and Open SourceOkular is Free and Open Source
  14. uRead icon

    uRead

     9 likes
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    Discover uRead, your ultimate companion for reading and listening! Whether you’re a casual reader or a book enthusiast, uRead transforms your experience with advanced features and a user-friendly design.

    Cost / License

    • Freemium (Pay once)
    • Open Source

    Application types

    Platforms

    • Android
    • Android Tablet
    uRead screenshot 1
     
12 of 47 Okular alternatives