Alternative image viewers

Viewnior

I particularly like Viewnior. It's a very lightweight and fast image viewer - faster than any of the alternatives I've tried:

One more reason to choose Viewnior is that isn't affected by this image scaling bug that's prevalent in many other GTK-based image viewers (see here for other solutions to this bug).

Installation

Ubuntu 14.10 and up

As of Ubuntu 14.10 Viewnior is now part of the official Ubuntu repositories. You can install it from the Software Centre or by running the following command:

sudo apt-get install viewnior

Earlier Ubuntu releases

A third-party PPA for Viewnior is now available. Before proceeding with the installation please make sure to read the following Q&As on PPAs and their potential dangers:

• What are PPAs and how do I use them?

• Are PPA's safe to add to my system and what are some "red flags" to watch out for?

If you are confident with adding a third-party PPA you can install Viewnior by using the following commands:

sudo add-apt-repository ppa:desdelinux/viewnior
sudo apt-get update
sudo apt-get install viewnior

Source: http://blog.desdelinux.net/instala-viewnior-en-ubuntu-12-04-13-10-14-04-ppa/

Alternatively you can compile Viewnior from source:

git clone https://github.com/xsisqox/Viewnior.git
cd Viewnior
./autogen.sh
./configure
make
sudo apt-get install checkinstall
sudo checkinstall

Instead of using checkinstall to generate a debian package and install it via the package manager you can just as well run make install. With this method you won't be able to manage your installation from the package manager, though.

you can also use gpicview.

you can install with sudo apt-get install gpicview

and you can also install pinta

sudo apt-get install pinta

for gpicview

for pinta

gThumb

gThumb is an advanced image viewer and browser. It has many useful features, such as filesystem browsing, slide show, image catalogs, web album creation, camera import, image CD burning, batch file operations and quick image editing features like transformation and color manipulation.

It's designed for GNOME desktop environment and uses its platform. For camera import feature, the gPhoto2 library is used.

sudo apt-get install gthumb

The best one XNVIEW MP is missing. It is something like Faststone image viewer for Windows. 26 Mb size, lots of options, and you can convert formats as well.

It is not in the software center, but you can download it from the official site and open it with the software center. Easy.

You can try either GIMP, or Shotwell Photo Manager. To install GIMP, just press Ctrl+Alt+T on your keyboard to open Terminal. When it opens, run the command(s) below:

sudo apt-get install gimp

And for Shotwell Photo Manager,

sudo apt-get install shotwell

Or just click the images below

For GIMP:

For Shotwell: