GIMP might be the little brother of Photoshop but it is a really powerful program and the truth is that many top web designers design solely with GIMP. There might be fewer resources for GIMP than there are for Photoshop but still there are enough resources you can find online. Almost all of these resources are free, which makes it even better. For instance, have a look at this list of more than 40 fantastic GIMP brushes:
Hearts and Flowers
1. Hearts GIMP Brushes by Hawksmont
A nice set of 9 brushes.
2. More Heart Brushes from Dreamy Graphics
Some more heart brushes in different shapes.
3. Hearts Brushes by Obsidian – Part 1
This first pack of heart brushes contains 24 brushes, like heart clusters, hearts with arrows, broken hearts, etc.
4. Hearts Brushes by Obsidian – Part 2
The second part comes with 26 more brushes, as cool as the ones in the first pack.
5. Flower Brushes by Dreamy Graphics
A set of 12 flower brushes.
6. Flower Brushes by BlendFu
6 flower you can try on the canvas before you decide whether to download them or not.
7. Floral Brushes from Hawksmont
9 big brushes each of which is at lest 1300 px.
8. More Floral Brushes from Hawksmont
This second pack contains 6 more flower brushes.
9. A Pine Megapack from Hawksmont
A pack with 16 full pine branches and 33 separate parts you can combine to make a branch of your own.
Earth, Sky, and Stars
1. Clouds and Mist Brushes by Project-GimpBC
A Photoshop set of 22 brushes converted for GIMP.
2. High Resolution Clouds Brushes by Obsidian
A set of 22 high-resolution brushes, mainly plump cumulus clouds.
3. Star Brushes by Dreamy Graphics
A set of stars in various shapes.
4. Night Brushes by MyLastBlkRose
Great brushes but some restrictive terms of use, so check these first and then get the brushes.
5. Lightning Brushes by Project-GimpBC
Another Photoshop convert with 22 brushes in it.
6. Snowflakes Brushes by Hawksmont
There are 20 snowflakes in this pack.
7. Bubble Brushes by Hawksmont
This brush pack contains 9 cute bubbles.
8. Light Beam Brushes by Booklover323
26 beams of light for your designs.
9. Tree Brushes by GetFirefox
A pack you might know from Photoshop, now converted for use with GIMP.
Shapes, Curves, and Swirls
1. Glow Brushes by Hawksmont
A pack of 11 big brushes.
2. Geometric Brushes by Pgd Design
Some basic shapes like squares, circles, and images that consist of them – 11 brushes altogether.
3. Curves Brushes by Dusk Blue
A pack of curves, curls, and loops.
4. Line Brushes by Dreamy Graphics
Some very basic line brushes.
5. Glitter and Smoke Brushes by Obsidian
A pack of 27 extremely high resolution (2200 px on average) smoke and glitter brushes.
6. Swirl Parts by Kowaresou
26 swirls and separate parts to combine into a swirl of your own.
7. Swirls by IntergalacticHussy
Another pack with 25 more swirls.
8. Swirl Effect Brushes by Insanity-Prevails
This pack includes 2 animated brushes in different sizes.
Grunge, Crack, and Splatter
1. Grunge Brushes by Dreamy Graphics
A pack of grunge brushes with various effects.
2. Grunge and Dirty Brushes by Project GimpBC
27 brushes, originally for Photoshop with different grunge/dirt effects.
3. Grunge Brushes by Hawksmont
A pack with some more grunge brushes.
4. Scratchies by lifebtb
A pack of 6 brushes 500-700 px each.
5. Cracks Brushes by Miamoto
12 brushes of cracks and walls.
6. Cracks Brushes by Project GimpBC
A pack of 23 more cracks, the majority of which are 1100+ px.
7. Splatter Brushes by Insanity Prevails
A pack of 2 animates and 10 standard size brushes.
8. Blood Brushes by Danieeel31
A pack of 10 blood brushes, 1000 x 1000 px each.
Other Brushes
1. A Pack of 1100 Various GIMP Brushes
This is a really huge pack, probably one of the largest out there. Kind of old, but still very useful.
2. Butterflies Brushes by Hawksmont
A pack of 9 cute butterflies.
3. Eyelashes Brushes by Project GimpBC
A set of 34 brushes – there are pairs, but also there are left/right ones, too.
4. Doodles Brushes by Hawksmont
A whopping 41 brush-set of cheerful doodles.
5. Dice Brushes by GetFirefox
Some cute dice to use in your designs.
6. Fingerprints Brushes by Hawksmont
A pack of fingerprints you can use for dirty marks, too.
7. Micro Patterns Brushes by redheadstock
31 micro patterns, mainly lines and derivatives, that have been converted to brushes.
8. Handwriting Brushes by Project GimpBC
47 handwriting brushes with different handwriting styles.
If you know some of the brushes on this list, this is hardly an accident because the latest versions of GIMP allows the use of Photoshop brushes and if you have seen the same pack for Photoshop, chances are you can use it with GIMP, too (though sometimes not everything will work the same way it does in Photoshop and this is why it is better to get a brush somebody has already made for GIMP). Some of the brushes here have been originally created for GIMP (and later exported to Photoshop), while others were first created for Photoshop and then exported for GIMP. In any case, these brushes are a valuable addition to your arsenal, so just install them and start using them in your projects.