UUID v7 Generator & Timestamp Decoder
Generate UUID v7 identifiers per RFC 9562 in bulk, and decode the embedded millisecond timestamp back to a readable date. Runs entirely in your browser.
How to use
- Choose how many IDs you need and the output format.
- Click Generate UUID v7 — IDs appear instantly, generated with the Web Crypto API.
- Copy the result, or paste a v7 UUID below to decode its embedded timestamp.
Use cases
- Sortable, time-ordered primary keys for databases and event logs.
- Message and job IDs that correlate with when they were created.
- Migrating away from v4 when ordering or recency matters.
Frequently Asked Questions
What is a UUID v7?
UUID v7 (RFC 9562) embeds a 48-bit millisecond Unix timestamp, so identifiers sort in creation order. It is a modern standard for database keys and event IDs.
Can I decode a timestamp from a UUID v7?
Yes. Paste a v7 UUID and this tool extracts the first 48 bits — the embedded timestamp — and converts it to UTC and your local time.
Is my data uploaded anywhere?
No. All processing happens in your browser with JavaScript. Nothing you paste is sent to any server.
What formats can I generate?
Standard lowercase, uppercase, no-hyphens, and URN format, in bulk quantities.