About this UUID generator
Generate 1–100 UUID v4 values at once using randomness from the browser's native crypto API: crypto.randomUUID is preferred, and environments without it fall back to building the UUID manually from crypto.getRandomValues per RFC 4122, with the version and variant bits set. Generation is entirely local — no server involved. Uppercase output and hyphen-free formatting are one click away, handy for database keys, distributed IDs and test fixtures.
A v4 UUID carries 122 random bits, so collisions are astronomically unlikely — but improbable is not impossible, and storage that strictly deduplicates should still enforce a unique constraint as a safety net. Results come one per line with bulk copy; nothing is uploaded or logged.