XnView MP plugin
On Debian/Ubuntu install XnView MP, then recoil-xnview_7.0.0-1_amd64.deb.

GIMP plugin
Install:
- On Debian/Ubuntu: recoil-gimp2_7.0.0-1_amd64.deb or recoil-gimp3_7.0.0-1_amd64.deb
- On Fedora: recoil-gimp-7.0.0-1.x86_64.rpm
- From source code: recoil-7.0.0.tar.gz,
uncompress it and follow the instructions in the
INSTALLfile.

Command-line converter
Install:
- On Debian/Ubuntu: recoil-2png_7.0.0-1_amd64.deb
- On Fedora: recoil-2png-7.0.0-1.x86_64.rpm
- From source code: as above.
When you run recoil2png with just the input filenames, it writes the corresponding PNGs
with the same names and locations and the extensions changed to png.
To see what options are available, run the program without arguments.
GNOME thumbnails
First install the command-line converter as above.
Then install:
- On Debian/Ubuntu: recoil-thumbnailer_7.0.0-1_all.deb
- On Fedora: recoil-thumbnailer-7.0.0-1.noarch.rpm
- From source code: as above.

ImageMagick plugin
A plugin for ImageMagick (version 7 or 6) can be built from source code: recoil-7.0.0.tar.gz.
Consult the INSTALL file.