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




MuPDF is described as 'Highly versatile PDF and XPS solution offering customizable rendering and viewing with features like digital signatures, redactions, and annotations' and is a very popular PDF Reader in the office & productivity category. There are more than 50 alternatives to MuPDF for a variety of platforms, including Windows, Linux, Android, Mac and iPhone apps. The best MuPDF alternative is SumatraPDF, which is both free and Open Source. Other great apps like MuPDF are Okular, Foxit PDF Reader, Xournal++ and Evince.
Sioyek is a PDF viewer with minimal interface optimized for reading research papers and technical books.




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.




Create, Convert, Review and Edit PDF Documents on Windows, macOS, and Linux.




Lightning fast with a slick design, Kavita is a rocket-fueled self-hosted digital library which supports a vast array of file formats. Install to start reading and share your server with your friends. book reader, self hosted, manga, comics, free, manhwa, e readers, electronic...




Kavita is the most popular Self-Hosted alternative to MuPDF.
A document viewer for the GNOME desktop. You can view, search or annotate documents in many different formats.


Simple Android PDF viewer based on pdf.js and content providers. The app doesn't require any permissions.



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


Comprehensive solution for editing, signing, form filling, OCR scanning, commenting, converting, and redacting PDFs, with AI-driven analysis and content extraction, data export to spreadsheets, text-to-speech, seamless use across desktop and mobile, and batch processing.




Flow is an online EPUB reader that offers its services at no cost and is compatible across a range of platforms including Web, Windows, Linux, macOS, Android, and iOS. It provides the convenience of reading multiple books simultaneously and enables seamless reading across...

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.



PDF viewer for macOS supports scientific papers, annotations, highlights, bookmarks, split view, exporting notes, AppleScript, multiple annotation types, bibliography integration, full-screen, search, and compatibility with various macOS versions.

Atril is a simple multi-page document viewer. It can display and print PostScript (PS), Encapsulated PostScript (EPS), DJVU, DVI, XPS and Portable Document Format (PDF) files. When supported by the document, it also allows searching for text, copying text to the clipboard...
Minimal, simple, fast, lightweight, just the document, no GUI.