FIM (Fbi IMproved) is a highly configurable image viewer aimed at users who prefer keyboard-controlled applications and command-line workflows. Its approach is similar to tools such as Vim and Mutt, with a strong emphasis on customisation and automation.
Unlike conventional desktop image viewers, FIM supports several display backends. It can display pictures through graphical or console-oriented interfaces, making it useful on systems where a complete desktop environment is unavailable or undesirable.
FIM is intended for technically inclined users who want fine control over image viewing and the ability to integrate image display into scripts.
This is free and open source software.
Key Features
- Multiple display backends – supports framebuffer, graphical and text-oriented image display methods.
- Keyboard-driven operation – provides extensive commands for navigating and manipulating images.
- Scriptability – automates image viewing operations through commands and scripts.
- Image navigation – move through collections of image files.
- Fullscreen display – view images without unnecessary interface elements.
- Image scaling – zoom and adjust the displayed image size.
- Customisable controls – configure commands and keyboard bindings.
- Console graphics – supports ASCII-art rendering through optional libraries.
- Lightweight architecture – avoids dependence on a full desktop environment.
Website: www.nongnu.org/fbi-improved
Support:
Developer: Michele Martone
License: GNU General Public License v2.0

FIM is written in C++. Learn C++ with our recommended free books and free tutorials.
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Read our verdict in the software roundup.
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