UUID stands for Universally Unique Identifier. It is a standard for software construction and part of the Open Software Foundation's work in the field of distributed computing environments. A UUID is a 128-bit value that can be computed using a specific algorithm. To improve efficiency, commonly used UUIDs can be shortened to 16 bytes. A UUID is used to identify a type of property and is regarded as an identifier that is unique across all space and time. Generally, it can be guaranteed that the value is truly unique: any UUID generated anywhere will not have the same value. One advantage of using UUIDs is that new identifiers can be created for new services. The standard UUID format is: xxxxxxxx-xxxx-xxxx-xxxxxx-xxxxxxxxxx(8-4-4-4-12).
This tool belongs to the “Encryption & encoding” category.
Your input is processed locally in the browser whenever possible. We do not store it.
No. MD5 is a one-way digest — you can compare it, never reverse it. So-called "decryption" is a rainbow-table hit.
Salts, random IVs, or a different case or source encoding all change the output. Normalise to UTF-8 before comparing.
Use it for learning and format checks. Generate and store production keys server-side; never paste a live secret into a web page.