Guides
In-depth explanations of randomness, security and probability — the technical reasoning behind our random generators. How long a password really takes to crack, which UUID version to pick for your database, and more. All of our generators run in your browser.
How Long Does It Take to Crack a Password? A Table by Length and Character SetA table of how long an attacker needs to try every combination of a password, by length and character set, with the assumptions spelled out and an explanation of why the hashing algorithm changes the answer.
UUID v4 vs UUID v7: Which One Should You Use as a Primary Key?Technical differences between UUID v4 (random) and UUID v7 (time-ordered): database index performance, privacy, current support in PostgreSQL and languages, and a practical rule for choosing.