UUID List Deduplicator

Normalize each valid UUID before deduplication and separately report duplicate and invalid lines.

UUID list — mixed text formats allowed

—Unique valid

—Duplicates

—Invalid

—Non-empty input

ReadyDeduplication normalizes case, hyphens, braces, URN prefixes, and compact hexadecimal before comparing the 128-bit value.

Real paste formats, canonical comparison

Newline, comma, and semicolon separators are accepted. Case, braces, URN prefixes, hyphens, and compact hexadecimal normalize to the same 128-bit value before duplicate comparison, while invalid entries stay reviewable.

RFC 9562 boundary

UUIDs are 128-bit values. Version meaning is interpreted only inside the appropriate variant, and representation conversion never changes the underlying 16 bytes.