You can generate a random GUID Online using our GUID generator. Usually, GUID is needed to identify rows in your DB (database), entity, or a serial number, etc. For many of us, the GUID number is just a simple random 128-bit quantity of numbers that are normally printed out in a particular format. But there are, actually, a few different types of GUIDs, and each of them is following a specific structure as described in RFC 4122. Using our generator you can save your time without googling any extra identifiers, and generate fake guid here in several seconds! Please, feel free to test and validate a GUID. We have tried to make a very flexible generator, so you could use it in most spread cases with testing where are GUIDs needed.