Overall the main difference between anime and manga is a simple one which is an animation and one in the form of images and words on paper. Although this is the main difference, there are also many other more subtle differences that do not need to realize if someone says for example just watch the anime version of the series which is also in the manga format.
In Western culture, the anime is said to refer to animation from Japan while in Japan, the anime refers to the overall animation. Japanese animation was produced since around 1917, but it was not really until the 70s and 80s visible and the nuances of the anime we knew at this time began to become โดจิน popular. During that time, a series like “Gundam” became popular in western countries. This contrasts with a very simple manga as a manga in the simplest form is a Japanese comic art book. Modern manga originated during the Second World War, and was strongly influenced by Western comic books and pre-war Japanese art.
Most anime will come from manga but this does not mean they are the same. The reason for this is the main goal of anime and manga is to generate benefits and production costs both very different. The manga will be cheaper as in the form of paper and many details can enter into the content of the important number of details because most anime comes from manga. But some details need to be left at the time of the anime and the reason for this is that the cost of anime production is much higher than the manga so that some key sub plots of certain characters must be abandoned due to budget cuts. Another difference is that sometimes anime will move too fast in terms of development of the story and to prevent this from happening some anime goes from the plot in what is known as the ARC filler that has no relevance with the actual plot. This is not a problem in the manga. Another difference is that anime must hold on time slots and sometimes some scenes must be cut from the manga so that the chapter to finish timely with some things that happens than nothing happens in terms of story development.