Transparent Square Tiles #298
Grid CC BY-SA 3.0The first pattern on here using opacity. Try it on a site with a colored background, or even using mixed colors.
Source Nathan Spady
More Textures
Pyramid #895
Light CC BY-SA 3.0Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall
Floral pattern 7 (colour 6) #2286
Brown CC 0Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Notebook@2X #1179
Gray CC BY-SA 3.0This one is super crisp at 2X. Lined paper with some dust and scratches.
Source HQvectors
Dark Wall@2X #818
Dark CC BY-SA 3.0Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
Background pattern 263 #2073
Pink CC 0Actually remixed from a pattern on Pixabay. But then noticed a very similar one on Openclipart.org uploaded by btj51q2.
Source Firkin
Tileable Off-white Background #1191
Concrete CC BY-SA 3.0A free tileable background colored in off-white (antique white) color.
Source V. Hartikainen
P2 #1107
Light CC BY-SA 3.0A series of 5 patterns. That’s what the P stands for, if you didn’t guess it.
Source Dima Shiper
Background pattern 262 #2075
Dark CC 0Inspired by a pattern found in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Strawberry seamless pattern #208
Noise CC 0This is the remix of "Strawberry Pattern Background" uploaded by "GDJ". Thanks. I realigned strawberries so as to get seamless and changed the BG color.
Source Yamachem
Subtle Grey #955
Light CC BY-SA 3.0The Grid. A digital frontier. I tried to picture clusters of information as they traveled through the computer.
Source Haris Šumić
Glass block pattern #2477
Brown CC 0Produced using the clouds, flames and glass blocks plug-ins in Paint.net and the resulting .PNG vectorised with Vector Magic.
Source Firkin
Background pattern 198 (variant 2) #2509
Yellow CC 0A version without colours blended together to give a different look.
Source Firkin
Background pattern 207 #2466
Yellow CC 0A seamless pattern created from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Overlapped wood #2567
Wood CC 0A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Background pattern 214 (colour 6) #2372
Colorful CC 0A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
Vintage pattern 2 #2295
Yellow CC 0Inspired by a pattern seen on a public domain image of a very old tile. To get the unit cell, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Brick Wall@ #1275
Wall CC 0Zero CC tileable brick texture, photographed and made by me. CC0
Source Sojan Janso
Prismatic Hexagonalism Pattern No Background #391
Light CC 0Prismatic Hexagonalism Pattern No Background
Source GDJ
Small Crackle Bright #352
Light CC BY-SA 3.0Light gray pattern with an almost wall tile-like appearance.
Source Markus Tinner
SubtleNet@2X #856
Light CC BY-SA 3.0You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
Tex2res2 #719
Fabric CC BY-SA 3.0Number 2 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
White Brushed #1183
Wall CC BY-SA 3.0Brushed aluminum, in a bright gray version. Lovely 2X as well.
Source Andre Schouten
Abstract Arbitrary Geometric Background@2X #498
Noise CC 0Abstract Arbitrary Geometric Background derived from an image on Pixabay.
Source GDJ