The list is very long and the plugins and the filters are really cool you don’t have to spend money on Photoshop plugins any more. I think you are going to find at least few of the plugins that you are looking for.
The article was post on allgraphicdesign.com and here is some of plugins and filters that are available for you to download.
Almathera Plugins – The Almathera plugins are free and you can create shape, bevel, halo, drop shadow, grayscale, warp, lightning and puddle effects.
Cybia Plug-In Filters – This freeware filters pack includes 6 filters with various transparency properties, 20 filters for modifying the colours in your images, 20 filters for producing edge/contour effects, 30 filters with different screen/mesh overlays, 20 filters containing simple emboss variations, 15 filters that “swap” colour values in your images, 20 filters to “blast” colours giving a strong cast, and 15 filters for producing mezzo and grain effects.
DCFilters – They have large selection of filters including ones for bricks, edger, border fade, color fade, ice, melt, pattern edit, problend, rough tile blend, and many more.
Deep Paint 2.0 – Deep Paint offers a realistic painting experience for digital artists and graphics professionals. Deep Paint intergrates stroke-by-stroke artistic photo-cloning, fully editable brush and canvas settings, and paint functionality for realistic and stunning paint effects. Experience thickly textured oils, bold acrylics, and dramatic watercolors. Deep paint simplifies your artistic workflow as a Photoshop plug-in or standalone application, with special support for the Wacom Intuos or compatible pressure sensitive pad.
Des Filtres – Site is in French but there must be a 100 filters that I believe are free.
Digital ArtShop - A large number of filters and plugins, but only a free of them are free including Greyscaler, Iridescent, Image Encoder, and Sketcher (this one isn’t free but very cool).
Flaming Pear – The Flaming Pear download page includes plugins and filters including Creative Pack, Mr.Contrast, Flood, Cool Designer Plugins, Flexify, Polymerge, LunarCell, India Ink, Hue and Cry, Glitterato, Solar Cell, Photography Pack, Tesselation, Patterns, Free Plugins, and more.
Free Photoshop Plugins – You can download about a dozen free Photoshop plugins on Free Photoshop including Berthold Daum Filters, CPK Filters, Crescent Moon Filters, PNG Format Plugin, Sabercat Filters, Scribe Filters, Ripleyer Filter, Ripleyer Filter, Sabercat Filters, Scribe Filters, Ripleyer, Scan Line Plugin, Red Eye filter, and Pro Canvas plugin.
GraphicXtras - A selection of plugins for Photoshop, Illustrator, Flash, and other programs. Some of the free Photoshop filters include filters for tons of custom shapes, gothic effects, frames, a 14 plugin demo set, and brushes.
GoPog – Filters include Mono Renditionizer, Lab Overlayer, Variable Blurrinator, Mono Renditionizer, and more.
Harry’s Filters - Harry’s Filters is a free Photoshop-compatible plugin containing up to 69 different image effects. They were formerly also known under the name “VideoRave”. Harry’s Filters 3 lets you choose the appropriate effect without hassling through different menus and dialogs. The main effect categories are called Color, Artistic, Gradients, Patterns, Warp, Noise, En/Decrypt, Other and Nature. They include filters for changing the image color or mood, for creating artistic effects, producing colorful gradients or impressive patterns, warping images and adding special noise effects to image. Additionally they let you encrypting and decrypting images with 64 bit keys, produce zoom, mirror or paint effects as well as natural effects like lightning, tornado and polar lights.
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