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

The best open source alternative to SumatraPDF is Okular. If that doesn't suit you, our users have ranked more than 100 alternatives to SumatraPDF and loads of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to SumatraPDF are Evince, MuPDF, Stirling PDF and Librera Reader.

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

  1. Okular icon

    Okular

     509 likes

    Multi-platform document viewer supporting PDF, ePub, comics, images, and Markdown with annotation, digital signature verification, tabbed interface, sidebar navigation, text selection, text-to-speech, magnifier, search, dark mode, and plugin support.

    128 Okular alternatives

    Cost / License

    Application types

    Platforms

    • Windows
    • Linux
    • BSD
    • KDE Plasma
    • Snapcraft
    • Linux Mobile
    • Flathub
    • Haiku
    Okular screenshot 1
     
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    3
    Okular vs SumatraPDF Comments
    Guest
    Positive
    0

    Reading ePub, comics and Markdown formats additionally to PDF, and also multi-Platforms supported !

    Guest
    Positive
    1

    Because both programs are design to see documents.

    veruzian
    Positive
    0

    If you want a basic PDF viewer, this will probably fit the bill. It's simple and ligthweight. I used to use Foxit Reader, and found Okular to be a good FOSS replacement.

    • Okular is Free and Open SourceSumatraPDF is also Free and Open Source
  2. Evince icon

    Evince

     465 likes

    Supports viewing and editing PDF annotations, displays multiple formats such as PDF, Postscript, DjVu, comic books, TIFF, DVI, XPS, remembers per-document zoom and position, features search, table-of-contents navigation, SyncTeX integration, and printing.

    133 Evince alternatives

    Cost / License

    Application types

    Platforms

    • Linux
    • Flathub
    • PortableApps.com
    • GNOME
    Evince screenshot 1
     
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    4
    Evince vs SumatraPDF Comments
    Guest
    Negative
    3

    not even close to SumatraPDF!

    Holy
    Positive
    2

    It has thumbnails. Renders faster. But it's a little bit less stable and no updates for Windows for a long time

    Guest
    Positive
    0

    evince is the best and now!

    3 of 4 comments
    • Evince is Free and Open SourceSumatraPDF is also Free and Open Source
    • Evince is MinimalisticSumatraPDF is not according to our users
  4. MuPDF icon

    MuPDF

     163 likes

    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.

    108 MuPDF alternatives

    Cost / License

    Application types

    Platforms

    • Windows
    • Linux
    • Android
    • F-Droid
    • Xfce
    MuPDF screenshot 1
     
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    2
    MuPDF vs SumatraPDF Comments
    Guest
    Positive
    3

    This is the core application within SumatraPDF so should be faster but with limited menus

    Guest
    Positive
    2

    While the MuPDF library is very lightweight, this reader is more a proof of concept than a lightweight GUI. The MuPDF download is about 70 Mb, Sumatra is less than 10.

    • MuPDF is Free and Open SourceSumatraPDF is also Free and Open Source
  5. Stirling PDF icon

    Stirling PDF

     62 likes

    Locally hosted web application offering an interactive GUI to merge, split, reorganize, convert, compress, watermark, secure, sign, flatten, repair, extract images, detect blanks, apply OCR, set permissions, and enable file processing or API integration for PDFs.

    118 Stirling PDF alternatives

    Cost / License

    • Freemium
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Online
    • Self-Hosted
    • Cloudron
    • Docker Hub
    Stirling PDF screenshot 1
     
  7. Librera Reader icon

    Librera Reader

     82 likes

    Librera Reader is a highly customizable and feature-rich application for reading books in PDF, EPUB, MOBI, DjVu, FB2, TXT, RTF, AZW, AZW3, HTML, CBZ, CBR formats on Android devices.

    75 Librera Reader alternatives

    Cost / License

    • Freemium
    • Open Source

    Application types

    Platforms

    • Android
    • Android Tablet
    • F-Droid
    Librera Reader screenshot 1
     
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    1
    Librera Reader vs SumatraPDF Comments
    Guest
    Negative
    0

    It cant run on Windows as SumatraPDF does so is not a viable alternative

    • Librera Reader is Freemium and Open SourceSumatraPDF is Free and Open Source
    • Librera Reader is an Ebook Reader SumatraPDF is a PDF Reader
  9. Firefox PDF Viewer (PDF.js) icon

    Firefox PDF Viewer (PDF.js)

     169 likes

    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.

    99 Firefox PDF Viewer (PDF.js) alternatives

    Cost / License

    Application type

    Platforms

    • Google Chrome
    • Opera
    • Mozilla Firefox
    Firefox PDF Viewer (PDF.js) screenshot 1
     
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    3
    Firefox PDF Viewer (PDF.js) vs SumatraPDF Comments
    Guest
    Negative
    4

    Firefox PDF viewer is a browser extension not a desktop app it is in wrong category

    Guest
    Negative
    -1

    This is a PDF reader built into Firefox, not a standalone application.

    Guest
    Negative
    0

    It cant run securely outside of the browser as SumatraPDF does so is not a viable alternative

    • Firefox PDF Viewer (PDF.js) is Free and Open SourceSumatraPDF is also Free and Open Source
  12. Sioyek icon

    Sioyek

     24 likes

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

    Cost / License

    Application type

    Platforms

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

    LEKTRA

     19 likes

    High-performance viewer for documents and images offering split tabs, customizable single or book layouts, portals for side-by-side sections, instant search, line highlight, annotation tools, link hints, searchable highlights, session management, and TOML config.

    56 LEKTRA alternatives

    Cost / License

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    LEKTRA screenshot 1
     
12 of 52 SumatraPDF alternatives