⚡ UUIDv47 = v4 privacy + v7 performance UUIDv7-in / UUIDv4-out (SipHash-masked timestamp).

uuidv47 lets you store sortable UUIDv7 in your database while emitting a UUIDv4-looking façade at your API boundary. It does this by XOR-masking only the UUIDv7 timestamp field with a keyed SipHash-2-4 stream tied to the UUID’s own random bits.

This website is the world most complete annotated UUID database, which happens to be an index of all the numbers between 0 and 2^128. Not all the numbers between 0 and 2^128 are RFC4122-compliant, but all are welcome in my database.

❄️ A PHP library for generating universally unique identifiers (UUIDs).

ramsey/uuid is a PHP library for generating and working with RFC 4122 version 1, 2, 3, 4, 5, 6, and 7 universally unique identifiers (UUID). ramsey/uuid also supports optional and non-standard features, such as GUIDs and other approaches for encoding/decoding UUIDs.

• ramsey/uuid @ GitHub.

A tiny (124 bytes), secure, URL-friendly, unique string ID generator for JavaScript.

Nano ID is a library for generating random IDs. Likewise UUID, there is a probability of duplicate IDs. However, this probability is extremely small.

• Nano ID @ GitHub.
• Nano ID PHP @ GitHub.
• Créer un raccourcisseur d'URL avec Bref - Partie 2 @ Hephaist.io :fr:.

A searchable list of every UUID, just in case you've forgotten one and need to look it up.

• Every UUID V4 @ GitHub.
• Writing down (and searching through) every UUID @ eieio.games.