Plugins
Most plugins below are usable with all versions of Photoshop
under Mac OS X, 9 and earlier, and Windows (if you need a version
that's not here, please write to us).
Should also work with Elements, AfterEffects, Premiere, PhotoDeluxe,
Corel PhotoPaint, Paint Shop Pro, Fireworks, Painter, Photo Impact etc.
(incomplete list).
For information about using these and other Photoshop plugins with the Gimp (on Linux),
see this page
and issue 6 of fullcircle magazine.
ICO (Windows Icon) Format
An easy way to create your web site's
favourites/shortcut/bookmark icon in Photoshop.
FREE, $5 donation suggested if you love the plugin.
(MacHouse has a video tutorial on making a favicon.)
(If you're looking for a plugin for OS X 'icns' icons,
try Zonic IconLab.)
- Windows (32 bit) All Photoshop versions for 32-bit Windows. For ICO files and favicons.
- Windows (32 bit) All Photoshop versions for 32-bit Windows. For ICO files, favicons, PNG (Vista/W7) icons & CUR files.
- Windows (64 bit) All Photoshop versions for 64-bit Windows, including CC
Photoshop file (PSD) Extract/Recover tool
This plugin lets you grab image layers from any PSD/PSB file.
It's faster than opening the whole PSD in Photoshop, if
you just want a layer. Also, it lets you open PSD created by the newest versions
of Photoshop, in older Photoshop versions that cannot read them directly.
Most importantly, it can usually recover image layers from corrupted PSD files
that Photoshop won't open (if Photoshop opens with damage,
this plugin recovers a more intact image).
FREE - small donation suggested if it saves your day/sanity/job.

Paint Shop Pro Format
Open and Save PSP 5-9 format files (including .pspimage, etc.) from Photoshop.
(Has also proved useful in recovering image data from otherwise unopenable PSP files.)
FREE, $5 donation suggested
Filter Foundry
A compatible and improved replacement for Adobe Filter Factory. Now fully scriptable!
FREE, $5 donation suggested More info.
Also see Filter Forge:
seamless textures, visual effects, distortions, patterns, frames and more.
Filter Forge has released 4 free plugins, comprising 7 filters each.
Big PNG
LibPNG-based
Photoshop file format plugin that is much faster than Photoshop's
built-in PNG format, and supports 16 bit images.
It also removes the 30,000 pixel limit, allowing
PNGs of practically any size to be opened and saved.
Electric Image (EIAS) Format
Image format plugin - also reads .EIZ ElectricImage Z-buffer depth files.
For all versions of Photoshop including CS and CS2.
Improve throughput of your .img files for use in Electric Image Animation System in excess of 100X!
If you work in EIAS Animator you cannot do without this one.
A typical benchmark saving 57MB file:
- Adobe plugin: 10 mins 53 secs
- This plugin: 6 seconds!
FREE, $5 donation suggested.
SGI Format
Reads and writes SGI (Irix) RGB image files, 8 or 16 bits/channel, in RLE or uncompressed formats.
While Photoshop "Goodies" include this format,
this plugin has fewer bugs, is faster, and works with all versions of Photoshop, on all platforms.
Scramble Filter
Break an image into square or rectangular blocks, and rearrange them randomly, like a sliding block puzzle.
(For more sophisticated puzzles, such as jigsaws, see
AV Bros. Puzzle Pro.)
Count Colours Filter
Counts distinct RGB colours in an image or selection.
Also counts distinct values in single channels.
Works with both 8 and 16 bit images.
5/6/5 Filter
Reduces colour depth of channels to 5 bits red, 6 bits green, 5 bits blue (total 16 bits or 65536 colours).
Applies error diffusion dither. Useful for adapting images to limited colour depth of
cell phones, mobile, and tablet devices, including Android image formats.
Also includes 5/5/5 variation (32768 colours).