Imprint: Christian Petry, Am Gänsweiher 8, 91486 Uehlfeld, GermanyNormalMap-Online is a web page that functions as a tool which allows you to upload a texture and quickly create a normal map.
The site allows for you to adjust values such as strength, level, blur/sharpness, and other values. Along with generating a normal map, you can also create displacement maps, ambient occlusion maps, and specular maps.
While the quality may not be on par with what you can create with premium software, NormalMap-Online can be a convenient tool for prototype projects and game jams.