Generates as many UUID v4 and time-sortable v7 values, ULIDs, NanoIDs and random passwords as you need. Uses the browser's cryptographic randomness; nothing generated is sent anywhere.

How to use it

1. Pick the kind
2. Set how many and how long
3. Toggle upper case or dropping hyphens
4. Generate, then copy them all

Common questions

Should I use v4 or v7?

v4 is enough for most things. v7 helps where sorting by creation order matters, such as a database primary key — its leading bits are the timestamp, so indexes fragment less.

Could two values ever collide?

UUID v4 carries 122 random bits, so collisions are not a practical concern. Note that v7 exposes the creation time inside the value, so it is a poor fit when that has to stay hidden.

Can I use the passwords this makes?

They come from the browser’s cryptographic randomness and are never stored or transmitted. On a shared computer, clear the screen when you are done.

Other tools

This tool page states where what you enter goes — see the badge above. All tools · KarmoLab · Who made this · Built with AI. View source