UUID v5 Generator

How to use:

1. Enter a valid namespace UUID and a name string.
2. Click Generate to create a new UUID v5.
3. Copy the UUID using the Copy button, and use it wherever needed.
4. Click Clear to remove all fields.

UUID v5 Generator: Consistency Meets Security

Sometimes, you need a unique ID that’s not just random, but also repeatable and secure. That’s where UUID v5 shines. It’s name-based, like v3, but uses SHA-1 for a stronger cryptographic backbone. I built this tool for those moments when you want to generate the same UUID for the same input—every single time—without sacrificing security or privacy.

Just enter your namespace UUID and a name—maybe a user, a resource, or a domain. Hit Generate, and you get a UUID v5 that’s always consistent for that pair. It’s perfect for distributed systems, API keys, or any scenario where you need to avoid collisions and keep things organized across platforms.

Everything happens locally, right in your browser. No data is sent anywhere, so your secrets stay yours. The interface is simple and focused: fill in your values, generate, copy, and you’re done. If you want to clear everything and start fresh, just hit Clear.

Whether you’re a developer, a security enthusiast, or just someone who loves having control over their data, this UUID v5 Generator is your go-to. No sign-ups, no ads, no tracking—just a reliable, privacy-first tool that’s always ready when you are. That’s the 1tools.app way: practical, secure, and built for real-world needs.