Firefox PDF Viewer (PDF.js) AlternativesPDF Readers and other similar apps like Firefox PDF Viewer (PDF.js)

Firefox PDF Viewer (PDF.js) is described as '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' and is a very popular PDF Reader in the web browsers category. There are more than 100 alternatives to Firefox PDF Viewer (PDF.js) for a variety of platforms, including Windows, Linux, Mac, Web-based and Android apps. The best Firefox PDF Viewer (PDF.js) alternative is SumatraPDF, which is both free and Open Source. Other great apps like Firefox PDF Viewer (PDF.js) are Okular, Foxit PDF Reader, Evince and MuPDF.

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Alternatives
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Alternatives list

  1. SumatraPDF icon
     1707 likes

    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.

    130 SumatraPDF alternatives

    Cost / License

    Application type

    Platforms

    • Windows
    Good alternative?
     
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  2. Okular icon
     510 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.

    132 Okular alternatives

    Cost / License

    Application type

    Platforms

    • Windows
    • Linux
    • BSD
    • KDE Plasma
    • Snapcraft
    • Linux Mobile
    • Flathub
    • Haiku
    Good alternative?
     
  3. Foxit PDF Reader icon
     1385 likes

    Foxit Reader offers a lightweight PDF viewing experience across multiple platforms with features such as annotation, form filling, signing, cloud storage integration, collaborative review options, heightened security via Trust Manager, and organizational tools like Group Policy and XML Configuration.

    147 Foxit PDF Reader alternatives

    Cost / License

    • Free Personal
    • Proprietary

    Application type

    Alerts

    • Bundleware

    Platforms

    • Mac
    • Windows
    • ReactOS
    Good alternative?
     
  4. Evince icon
     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.

    135 Evince alternatives

    Cost / License

    Application type

    Platforms

    • Linux
    • Flathub
    • PortableApps.com
    • GNOME
    • US flagUnited States
    Evince screenshot 1
    Good alternative?
     
  5. MuPDF icon
     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.

    112 MuPDF alternatives

    Cost / License

    Application type

    Platforms

    • Windows
    • Linux
    • Android
    • F-Droid
    • Xfce
    • US flagUnited States
    MuPDF screenshot 1
    Good alternative?
     
  6. Seamlessly view, annotate, and collaborate on PDFs with freehand drawing and sticky notes. Utilize cloud storage for effortless access and upgrade for advanced editing and conversion to formats like Word and Excel.

    150 Adobe Acrobat Reader alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Android
    • iPhone
    • Android Tablet
    • iPad
    Good alternative?
     
  7. LEKTRA icon
     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.

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    Good alternative?
     
  8. MJ PDF Reader icon
     29 likes

    A totally free of cost and ads PDF documents reader.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Android
    Good alternative?
     
  9. Sioyek icon
     25 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
    • US flagUnited States
    Main view
    Good alternative?
     
  10. EmbedPDF icon
     13 likes

    EmbedPDF is a framework-agnostic, MIT-licensed PDF viewer that drops into any JavaScript project. Whether you build with React, Vue, Svelte, Preact, or vanilla JS, EmbedPDF delivers a smooth, modern reading experience and a clean developer API.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Self-Hosted
    • React
    • JavaScript
    • Typescript
    • Vue.js
    Good alternative?
     
  11. Preview icon
     124 likes

    Native macOS app for viewing, annotating, and editing images and PDFs, featuring tools for cropping, rotating, resizing images, rearranging pages, full-screen viewing, markup, document merging, batch conversion, and export in multiple formats.

    191 Preview alternatives

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Mac
    • iPhone
    • iPad
    • US flagUnited States
    Preview screenshot 1
    Good alternative?
     
  12. Xodo icon
     72 likes

    Xodo is the ultimate cross-platform PDF viewer and annotator. Powerful, fast, and optimized for all phones and tablets, Xodo makes it easy to access, edit, share, sync, manage, sign, and more.

    136 Xodo alternatives

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Windows
    • Online
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad
    • Google Chrome
    Good alternative?
     
12 of 101 Firefox PDF Viewer (PDF.js) alternatives