Business Operations

Best File Reader Software in 2026

File reader software helps people open and read digital files on computers, phones and the web. This list helps you compare tools before choosing one.

01 ImageGlass
ImageGlass suits people who want a desktop viewer with broad image-format support and basic editing tools.

From $9.99/mo Free plan Open source Windows · macOS · Linux · API
9.2 Visit Specs
02 Librera Reader
Librera suits readers who use multiple ebook and document formats and want tools such as annotations, dictionaries, or text-to-speech.

Free plan Open source Web · macOS · iOS · Android
9.1 Visit Specs
03 Foxit PDF Reader
It suits people who need to read, annotate, sign or complete PDF forms across desktop, mobile and web platforms.

Free plan Web · Windows · macOS · iOS
8.9 Visit Specs
04 FBReader
FBReader suits readers who want an ebook app across desktop and mobile platforms, with format support and synchronized reading details.

Free plan Windows · macOS · Linux · iOS
8.7 Visit Specs
05 MuPDF
MuPDF suits developers building document features into desktop, cloud/server, or embedded projects.

From $299/mo Free plan Web · Windows · macOS · Linux
8.5 Visit Specs
06 FastStone Image Viewer
It suits Windows users who want image browsing, editing, conversion, or batch work in one program.

Free plan Windows
8.4 Visit Specs
07 Okular
Free plan Windows · macOS · Linux
8.3 Visit Specs
08 Mozilla PDF.js
It suits developers embedding PDF rendering in web applications, browser extensions, or self-hosted viewers.

Free plan Web · Linux · API · Self-hosted
8.2 Visit Specs
09 IrfanView
IrfanView suits Windows users who need image viewing alongside batch processing, conversion, and editing tools.

From $18/mo Free plan Windows
8.1 Visit Specs
10 Kobo Books
Kobo Books suits listeners who want audiobook access on a phone, tablet, or supported Bluetooth Kobo eReader.

From $7.99/mo Free trial Web · iOS · Android
8.1 Visit Specs
11 Apple Books Digital Narration
Free plan Web
7.9 Visit Specs
12 ReadEra
ReadEra suits readers who want to manage and annotate a varied collection of books and documents.

Free plan macOS · iOS · Android
7.9 Visit Specs
13 Google Play Books Auto-narrated Audiobooks
It suits publishers with eligible EPUB titles, audio rights, and a need for digitally narrated editions.

Free plan Web
7.8 Visit Specs
14 Kindle Create
Free plan Windows · macOS
7.7 Visit Specs
15 SumatraPDF
It suits Windows users who want a free reader with broad document-format support, annotation and form tools, accessibility features, or portable use.

Free plan Windows
7.6 Visit Specs
16 qView
qView suits people who want a minimal image viewer on Windows, macOS, or Linux.

Free plan Windows · macOS · Linux
7.4 Visit Specs
17 Moon+ Reader
Android
7.3 Visit Specs
18 Universal Viewer
Universal Viewer suits Windows users who need to inspect varied image, media, document, and text files in one application.

Free plan Windows
7.1 Visit Specs
19 File Viewer Plus
Windows
6.0 Visit Specs
20 KOReader
macOS · Linux · Android
5.8 Visit Specs
21 Papers
Linux
5.8 Visit Specs
22 Thorium Reader
Windows · macOS · Linux · iOS
5.5 Visit Specs
23 XnView MP
Windows · macOS · Linux
5.3 Visit Specs
24 XnView Classic
Windows
5.1 Visit Specs

How this list is ordered. Specifiction scores each tool on how fully its maker documents it, whether its prices are published, where the research puts it, the platforms it runs on and whether it can be tried for free (how we rank). Makers can also buy a numbered place (how Specifiction is paid for).

Check the formats and platforms you need, then compare annotations, text search, accessibility support, cloud sync and pricing. A free plan, open-source code or a free trial may affect your choice.

Compare ImageGlass and Librera Reader Get a place on this list

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