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DarkThumbs

Adds thumbnail preview to Windows Explorer for EPUB, FB2, DJVU and Kindle ebooks; 7Z, CB7, CBZ, CBR, RAR and ZIP archives.

From fire-eggs·Updated June 16, 2026·View on GitHub·
·Archived

I no longer have the energy or motivation to work on this project. Forks are encouraged. The project is written primarily in C++, first published in 2020. Key topics include: cb7, cbr, cbz, djvu, epub.

Latest release: V2.1DarkThumbs V2.1
May 17, 2025View Changelog →

I no longer have the energy or motivation to work on this project. Forks are encouraged.

DarkThumbs

Thumbnail preview support for ebooks and various archive formats in Windows File Explorer. V2.0 adds DJVU and 7Z/CB7 support!
V2.1 fixes broken CB7 support, adding it as a selectable option.

Screenshots

V2.0 Demo
V2.0 Manager

Supported formats

  • EPUB
  • FB2
  • Kindle (MOBI, AZW, AZW3)
  • DJVU / DJV
  • 7Z
  • CB7
  • CBZ
  • CBR
  • RAR
  • ZIP (ZIP, PHZ, GGB)

Minimium system requirements

Windows 7/8/8.1/10/11 (64-bit)

Built with

Visual Studio 2019 using Windows 10 SDK. Requires the Microsoft "Visual Studio Installer" extension to build the setup projects.

With a Little Help From ...

logo2 - Deleaker : the best tool for finding memory, GDI and other leaks!

Credits

Source Code

Used Invertex's CBXShell as a base

MOBI support thanks to libmobi

7Z support via bit7z

Application Icon

Icons made by Those Icons from Flaticon

Contributors

Showing top 4 contributors by commit count.

View all contributors on GitHub →

This article is auto-generated from fire-eggs/DarkThumbs via the GitHub API.Last fetched: 6/20/2026