Generate a batch of UUIDs

No. Formatting and output choices retain the current batch. Generate starts a new one.

From 1 to 10,000 in one batch.

No. Collision risk depends on the format and how it is generated and used. Enforce uniqueness in the receiving system where required.

No. A compact UUID removes hyphens from UUID text. Nano ID is a separate case-sensitive format.

The generator supports UUID v4 and v7, ULID and Nano ID, not every UUID version. Nano ID length is 8 to 64 characters. UUID v7 uses a fresh random suffix for every ID by default, with no guaranteed order inside a millisecond. Its optional sequential mode keeps one timestamp and increments a random starting suffix across the whole set; each Generate starts a fresh set, with no guaranteed order between sets. ULID retains order within one tab, not across devices or tabs. UUID structure checks do not prove uniqueness, origin, secure generation or application suitability. The inspector accepts canonical, compact, braced and UUID URN text, with a maximum of 100,000 characters. It does not silently remove spaces or decode Base64. A compact UUID is 32 hexadecimal digits without hyphens; Nano ID and ULID are separate identifier formats. Possible other formats get explanatory hints, not a UUID validation result. Identifiers are not passwords or access tokens.

Generated identifiers and inspector input stay in this tab’s memory. Refreshing or closing the tab discards them. Copy writes to your clipboard; download creates a local file. The tool has no analytics or saved identifier history. These public pages offer optional analytics separately, under Analytics settings. Ordinary page and catalogue requests may be logged by the hosting provider. No identifier is placed in a URL or sent to SmartFACT.