Librera suits Android readers who work with varied ebook and document formats and want annotation, search, or reading sync.
Free plan Open source From $5.99 one-time AndroidiPhone & iPadWebMacBrowser extension
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Best File Reader Software 2026
Every product here is ranked by Samsung Mobile US Press's record score: what its maker publishes about it, where it runs (Android first), whether it is free to try, and how recently the facts were read.
02
ImageGlass
ImageGlass suits people who need a desktop viewer for varied image formats, including RAW, with basic editing and metadata viewing.
WindowsMacLinux+1 Record6.1 Visit
03
FBReader
It suits readers who want an ebook app across desktop and mobile platforms and need support for several ebook formats.
AndroidiPhone & iPadWindows+2 Record6.0 Visit
04
MuPDF
MuPDF is for developers who need document processing in desktop, server, cloud, or embedded projects.
AndroidiPhone & iPadWeb+4 Record5.8 Visit
05
Foxit PDF Reader
It suits readers who need to view, annotate, fill, or sign PDFs across desktop, mobile, and web platforms.
AndroidiPhone & iPadWeb+2 Record5.7 Visit
6
Kobo Books
AndroidiPhone & iPadWeb $7.99 a month Record5.6 Visit It suits listeners using iOS, Android, or compatible Kobo eReaders who want audiobook playback, downloads, and Bluetooth support.
7
ReadEra
AndroidiPhone & iPadMac $14.99 one-time Record5.3 Visit ReadEra suits readers who keep books and documents in varied formats or want tools for organizing and annotating a library.
8
FastStone Image Viewer
Windows Free plan Record5.0 Visit It suits Windows users who want image browsing, editing, conversion, and batch tools in one program.
9
IrfanView
Windows Free plan Record4.9 Visit It suits Windows users who need image viewing alongside batch processing, conversion, and editing tools.
10
Okular
WindowsMacLinux Free plan Record4.9 Visit Okular suits readers who want one viewer for documents, comics, images, or Markdown across Linux, Windows, and macOS.
11
Mozilla PDF.js
WebLinuxBrowser extension+2 Free plan Record4.7 Visit PDF.js suits developers who want to embed PDF rendering or build a custom viewer.
12
Universal Viewer
Windows Free plan Record4.7 Visit It suits Windows users who need one viewer for varied media, office, text, and plugin-supported formats.
13
Kindle Create
WindowsMac Free plan Record4.6 Visit Kindle Create suits authors preparing manuscripts for Kindle or print publication through KDP, including creators of reflowable books, print replicas, or comics.
16
SumatraPDF
Windows Free plan Record4.5 Visit It suits Windows users who need a free reader with document tools, accessibility options, and portable use.
17
Google Play Books Auto-narrated Audiobooks
Web Free plan Record4.4 Visit This tool suits publishers with eligible EPUB titles and the necessary audio rights.
18
Apple Books Digital Narration
Web Free plan Record4.3 Visit This program is for independent authors and small publishers with eligible English ebooks and audiobook rights.
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