Many people use online tools and photoshop for various reasons. Many use it to retouch images, while others design web mockups and image compositions. Other people use it to create creative reasons, like drawing or painting. There are numerous plugins that can be used to enhance the capabilities of Photoshop.
Custom brushes are a popular feature in Photoshop. They can be used to create many different effects. The clone stamp tool allows you to copy pixels from one part of an image, and then paste them on another, and the healing brush can be used to remove blemishes and other imperfections. The eraser tool performs the same however it permanently removes pixels from layers.
Other tools that are well-known include the selection tools, which allow you to outline an area, and then apply another effect to the area. The lasso tool, for example can be used to highlight an individual and alter their appearance or tone without impacting the rest of the image. The patch tool makes use of an existing pattern or selection to fill in a gap, which is useful for covering up a small obstacle like a birthmark, acne scar or scar.
Other online tools and Photoshop are designed to speed up the process, for instance, CSS Hat generates CSS codes for specific layers, saving you the hassle of typing in the code yourself. GuideGuide is an application that allows you to quickly create guides for images that are available on the web which reduces the amount of effort required to create your final product.