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imgult, The image-ultimator.

What is it?

imgult is a tiny and mighty script that will recursively loop through a directory and its subdirectories optimizing all GIFs, JPGs, PNGs and SVGs (the script supports several types of these kinds of extensions, check the source to see). It also removes EXIF data (run with EXIFREMOVE=n to keep EXIF data). You can backup the images by running it with (BACKUPIMAGES=true).

Check out the imgult site!

What do people say about it?

Torkiliuz succesfully tested imgult against a 26TB sample that had approximately 140GB of images. Wow! He made some helpful suggestions for the 4.0.01 release. Because of that, imgult now creates a file called imgult-processed-files.txt as a record of previously processed stuff. You can delete it if you do not mind files being processed again. 🎉

I just want to run it once (it will kindly remove itself):

curl https://raw.githubusercontent.com/ryanpcmcquen/image-ultimator/master/imgult | sh

I love this script! I want to install it and use it everywhere!

wget -N https://raw.githubusercontent.com/ryanpcmcquen/image-ultimator/master/imgult; sudo install -m755 imgult /usr/local/bin/; rm imgult

PSST! To upgrade imgult, just run the same command as install (^^ THIS GUY ^^). It's just a shell script after all! 🎉

Before you run it you need these amazing programs!

jpegoptim
mozjpeg
optipng
pngquant
gifsicle
exiv2
svgo

Check here to see the recommended minimum versions of these tools:

#5 (comment)

Of course, newer versions are probably even better! 😃

Linux:

Slackware:

sbopkg -i jpegoptim -i mozjpeg -i optipng -i pngquant -i gifsicle

Fedora:

sudo dnf install jpegoptim optipng pngquant gifsicle exiv2

Ubuntu (16.04+ recommended):

sudo apt-get install jpegoptim optipng pngquant gifsicle exiv2

On some systems you will need to compile mozjpeg from source. You will probably need these:

Fedora:

sudo dnf install nasm libtool autoconf

Ubuntu (16.04+ recommended):

sudo apt-get install nasm libtool autoconf build-essential

Some Ubuntu systems will also require the following packages:

sudo apt-get install pkg-config libpng-dev

After that, download the most recent release and run something like this:

autoreconf -fiv
./configure --disable-static

make
sudo make install

Mac:

brew install jpegoptim mozjpeg optipng pngquant gifsicle exiv2

Linux & Mac:

npm install -g svgo

USE IMGULT AT YOUR OWN RISK!

Just run this command in any directory with images. It will OVERWRITE images (GIFs, JPGs, PNGs & SVGs), and loop recursively through all directories INSIDE the directory you run it in. There is a BACKUP option though. ;^)

If it is installed, how do I use it?
  • 'cd' to the directory you want to use it in

Run:

imgult

Or feed imgult directories and/or files:

imgult Downloads/ 1.png 2.jpg
EXIF removal

The default is to remove EXIF data, to keep EXIF data, run:

EXIFREMOVE=n imgult
BACKUPs

To back up all original images to imgult-backup-files/, run:

BACKUPIMAGES=true imgult

This can be run with the EXIF option as well:

EXIFREMOVE=n BACKUPIMAGES=true imgult
IMGATCH

To turn off the image matching service (which ignores previously processed files), either run imgult like so:

ENGAGE_IMGATCH_SERVICE=false imgult

Or, set your environment to have ENGAGE_IMGATCH_SERVICE to false (export it in .bashrc or .bash_profile).