OpenBabel

OpenBabel is like a magic box that can change words from one language to another. But instead of words, it changes molecules from one format to another. Just like how we can say "hello" in different languages like "hola" in Spanish or "bonjour" in French, molecules can be written in different formats too.

Now, imagine you have a picture of a toy and you want to show it to your friend who lives far away. You could take a picture of the toy using your phone, but your friend might not be able to open the picture because their phone doesn't support the same file format as yours. So you need to change the format of the picture, and that's what OpenBabel can do for molecules.

OpenBabel can read many different formats of molecule files, like SMILES or PDB files, and then convert them into different formats that other programs can understand. This makes it easier to work with molecules in different programs or to share them with other people.

In summary, OpenBabel is like a magic translator for molecules that can convert them from one language to another.