Firefox PDF Viewer (PDF.js) AlternativesOnly apps categorised as Ebook Readers

The best Ebook Reader alternative to Firefox PDF Viewer (PDF.js) is SumatraPDF, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Firefox PDF Viewer (PDF.js) and 12 are Ebook Readers so hopefully you can find a suitable replacement. Other interesting Ebook Reader alternatives to Firefox PDF Viewer (PDF.js) are Okular, Evince, MuPDF and Papers.

Firefox PDF Viewer (PDF.js) iconFirefox PDF Viewer (PDF.js)
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PDF Viewer (aka pdf.js) is a new revolutionary extension using web standard technologies that allows you to display within...

More about Firefox PDF Viewer (PDF.js)
More about Firefox PDF Viewer (PDF.js)
Firefox PDF Viewer (PDF.js) alternatives page was last updated May 15, 2025
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  1. SumatraPDF icon

    SumatraPDF

     1624 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

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • PL flagPoland
    • European Union flagEU

    Platforms

    • Windows
    SumatraPDF screenshot 1

    Properties

    1.  Lightweight
    2.  Optimal performance
    3.  Privacy focused

    Features

    1.  Low memory usage
    2.  Ad-free
    3.  Tabbed interface
    4.  Portable
    5.  Multi Format Reader
    6.  No registration required
    7.  Works Offline
    8.  Highlighter
    9.  PDF annotation
    10.  Global bookmarks
    11.  Dark Mode
    12.  Quick search

    SumatraPDF VS Firefox PDF Viewer (PDF.js)

     
    Comments about SumatraPDF as an Alternative to Firefox PDF Viewer (PDF.js)
    Guest
    Positive •Jan 8, 2018
    0

    Fast rendering, fast scrolling and zooming. But above all else: hold right mouse button and scroll to zoom! :D

    Guest
    Negative •Jun 10, 2016
    0

    Not in-browser alternative

    Firefox PDF Viewer (PDF.js) Icon
    SumatraPDF icon

    • Most users think SumatraPDF is a great Firefox PDF Viewer (PDF.js) alternative.

    • SumatraPDF is the most popular Windows alternative to Firefox PDF Viewer (PDF.js).

    • SumatraPDF is the most popular Open Source & free alternative to Firefox PDF Viewer (PDF.js).

    • SumatraPDF is Free and Open SourceFirefox PDF Viewer (PDF.js) is also Free and Open Source
    • SumatraPDF is LightweightFirefox PDF Viewer (PDF.js) is not according to our users
  2. Okular icon

    Okular

     452 likes
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    Multi-platform document viewer offering extensive format support, including PDF, comics, images, EPUB, and Markdown, with annotation tools, sidebar previews, text-to-speech, DRM management, cross-platform compatibility, and integration with KDE Frameworks libraries.

    111 Okular alternatives

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Windows
    • Linux
    • BSD
    • KDE Plasma
    • Snapcraft
    • Linux Mobile
    • Flathub
    • Haiku
    Okular screenshot 1

    Properties

    1.  Lightweight
    2.  Privacy focused

    Features

    1.  PDF annotation
    2.  Text Highlighting
    3.  Tabbed interface
    4.  Dark Mode
    5.  Ad-free
    6.  Low memory usage
    7.  KDE
    8.  Works Offline
    9.  Customizable shortcuts
    10.  Text to Speech
    11.  Fill PDF Forms
    12.  No Tracking

    Okular VS Firefox PDF Viewer (PDF.js)

     

    • Okular is the most popular Linux alternative to Firefox PDF Viewer (PDF.js).

    • Okular is Free and Open SourceFirefox PDF Viewer (PDF.js) is also Free and Open Source
    • Okular is Lightweight and Privacy focusedFirefox PDF Viewer (PDF.js) is not according to our users
  4. Evince icon

    Evince

     455 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

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Linux
    • PortableApps.com
    • Flathub
    • GNOME
    Evince screenshot 1

    Properties

    1.  Lightweight
    2.  Minimalistic
    3.  Privacy focused

    Features

    1.  PDF annotation
    2.  Invert colours
    3.  Multiple languages
    4.  Dark Mode
    5.  Ad-free
    6.  Portable
    7.  Works Offline
    8.  No registration required
    9.  No Tracking
    10.  Handwriting recognition
    11.  Windows Compatible

    Evince VS Firefox PDF Viewer (PDF.js)

     
  5. MuPDF icon

    MuPDF

     156 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

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

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

    Properties

    1.  Lightweight

    Features

    1.  Portable
    2.  Ad-free
    3.  Vim Key Mapping
    4.  PDF annotation
    5.  Sign PDF files
    6.  PDF compression
    7.  Combine PDF
    8.  Split PDF files
    9.  Fill PDF Forms

    MuPDF VS Firefox PDF Viewer (PDF.js)

     

    • MuPDF is the most popular Android alternative to Firefox PDF Viewer (PDF.js).

    • MuPDF is Free and Open SourceFirefox PDF Viewer (PDF.js) is also Free and Open Source
    • MuPDF is LightweightFirefox PDF Viewer (PDF.js) is not according to our users
  6. Papers icon

    Papers

     11 likes
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    A document viewer for the GNOME desktop. You can view, search or annotate documents in many different formats.

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Linux
    • Flathub
    • GNOME
    • Flatpak
    A clear, simple Ul

    Properties

    1.  Privacy focused
    2.  Lightweight

    Features

    1.  Ad-free
    2.  Full-Text Search
    3.  Works Offline
    4.  No registration required
    5.  No Tracking
    6.  Dark Mode
    7.  Text to Speech

    Papers VS Firefox PDF Viewer (PDF.js)

     
  7. KDAN PDF Reader icon

    KDAN PDF Reader

     184 likes
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    KDAN PDF Reader is tailored for a hybrid workplace, providing AI-driven PDF document services to enhance efficiency in cross-device document management and enable seamless workflows across mobile and desktop platforms.

    240 KDAN PDF Reader alternatives

    License model

    • Freemium • Proprietary

    Application types

    Country of Origin

    • TW flagTaiwan

    Platforms

    • Mac
    • Windows
    • Android
    • iPhone
    • Android Tablet
    • iPad
    Your All-in-One PDF Editor

    Properties

    1.  Privacy focused

    Features

    1.  Scan documents
    2.  Freehand Writing
    3.  Sign PDF files
    4.  Multiple languages
    5.  PDF compression
    6.  Combine PDF
    7.  Full-Text Search
    8.  Split PDF files
    9.  Built-in viewer
    10.  Dark Mode
    11.  Text to Speech
    12.  Works Offline

    KDAN PDF Reader VS Firefox PDF Viewer (PDF.js)

     
    Comments about KDAN PDF Reader as an Alternative to Firefox PDF Viewer (PDF.js)
    Rosalind Morris
    Positive •Feb 22, 2019
    0

    PDF Reader is reliable and does its job faster.

    Firefox PDF Viewer (PDF.js) Icon
    KDAN PDF Reader icon
    • KDAN PDF Reader is Freemium and ProprietaryFirefox PDF Viewer (PDF.js) is Free and Open Source
    • KDAN PDF Reader is Privacy focusedFirefox PDF Viewer (PDF.js) is not according to our users
  9. zathura icon

    zathura

     43 likes
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    Zathura is a highly customizable and functional document viewer. It provides a minimalistic and space saving interface as well as an easy usage that mainly focuses on keyboard interaction.

    71 zathura alternatives

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Mac
    • Linux
    • BSD
    • MacPorts
    • Homebrew
    Bestfit

    Properties

    1.  Lightweight

    Features

    1.  Full-Text Search
    2.  Ad-free
    3.  Extensible by Plugins/Extensions
    4.  Works Offline
    5.  Vim Key Mapping
    6.  Vi keybindings

    zathura VS Firefox PDF Viewer (PDF.js)

     
  10. Document Viewer icon

    Document Viewer

     50 likes
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    Document Viewer is a highly customizable document viewer for Android, fork of the last GPL version of EBookDroid .

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Android
    • Android Tablet
    • F-Droid
    library view
    settings
    Discontinued

    The last version (2.7.4) was released in March 2016.

    Properties

    1.  Privacy focused
    2.  Lightweight
    3.  Customizable

    Features

    1.  Works Offline
    2.  No registration required
    3.  No Tracking

    Document Viewer VS Firefox PDF Viewer (PDF.js)

     
  11. STDU Viewer icon

    STDU Viewer

     93 likes
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    Are you tired from many viewers one for each document? Do you want to have, one program for all your technical documentations, scientific books and so on? Do you want to have program, which fast opens files, fast loads pages and fast renders page to screen? And all of this in fre.

    90 STDU Viewer alternatives

    License model

    • Free Personal • Proprietary

    Application types

    Country of Origin

    • RU flagRussia

    Platforms

    • Windows
    STDU Viewer screenshot 1
    Discontinued

    The program is no longer updated. Last version, 1.6.375, released in April 2015, can be still downloaded from the official website

    Properties

    1.  Lightweight

    Features

    1.  Ad-free
    2.  Portable
    3.  Tabbed interface
    4.  Support for regular expressions

    STDU Viewer VS Firefox PDF Viewer (PDF.js)

     
  12. PdfDing icon

    PdfDing

     1 like
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    PdfDing is a browser based PDF manager, viewer and editor that you can host yourself. It offers a seamless user experience on multiple devices. It's designed be to be minimal, fast, and easy to set up using Docker.

    License model

    • Free • Open Source

    Application types

    Platforms

    • Online
    • Docker
    • Kubernetes
    PdfDing screenshot 1

    Properties

    1.  Lightweight
    2.  Privacy focused
    3.  Support for Themes

    Features

    1.  Cloud Sync
    2.  Built-in viewer
    3.  File Tagging
    4.  PDF annotation
    5.  No Tracking
    6.  Dark Mode

    PdfDing VS Firefox PDF Viewer (PDF.js)

     
  13. Shelf (Maui Applications) icon

    Shelf (Maui Applications)

     1 like
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    Shelf is a convergent document viewer that supports PDF and EPUB files. With Shelf, you can organize your document collection by creating tags, like other Maui applications.

    60 Shelf (Maui Applications) alternatives

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • MX flagMexico

    Platforms

    • Linux
    • Android
    Shelf (Maui Applications) screenshot 1

    Shelf (Maui Applications) VS Firefox PDF Viewer (PDF.js)

     
  14. Translator for PDF and EPUB icon

    Translator for PDF and EPUB

     Like
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    Translate book online.

    License model

    • Free • Proprietary

    Application type

    Platforms

    • Online
    Translator for PDF and EPUB screenshot 1

    Translator for PDF and EPUB Features

    1.  Built-in viewer
    2.  Website Translation

    Translator for PDF and EPUB VS Firefox PDF Viewer (PDF.js)

     
12 of 12 Firefox PDF Viewer (PDF.js) alternatives