You need an ID right now, not a library
You are scaffolding a prototype and every row needs a primary key. Or you want to confirm a downloaded file was not corrupted. Reaching for a random library, or worse, a website that "generates" the value for you, adds risk and friction to a two-second task.
UUIDs on demand
Open the UUID Generator and produce one or many RFC-4122 v4 identifiers using the browser's crypto-grade random source. Batch them for seed data, copy straight into your schema, and move on.
Hashes without a script
For a quick integrity check or a stable cache key, the Hash Generator computes MD5, SHA-1, SHA-256, or SHA-512 locally with the Web Crypto API. Paste the text, read the digest, and compare it to the value you were given — all in the browser, nothing uploaded.
Where this earns its keep
- Seed fixtures and test rows with realistic unique keys.
- Verify a file or payload matches an expected hash before trusting it.
- Build cache-busting keys without leaving the page you are working in.
Both tools run entirely on-device, so the values you generate never pass through a server — handy precisely when the data is still rough and sensitive.