ULID 생성기
「ULID 생성기」는 코드, 데이터 및 QR 작업을 위한 브라우저 도구입니다. 입력과 결과는 일반적으로 이 기기에서 처리되며 가입이 필요하지 않습니다.
사용 방법
사용 방법
- Choose how many ULIDs to generate, from 1 to 100.
- Generate the identifiers and review the newline-separated result.
- Copy the batch or download it as a UTF-8 text file.
Standard ULID structure
Each ULID is 26 characters: 10 Crockford Base32 characters encode a 48-bit Unix millisecond timestamp, followed by 16 characters encoding 80 random bits. The result uses uppercase letters and digits, excluding I, L, O, and U.
Sortable by time, unique by randomness
ULIDs generated at different millisecond timestamps sort chronologically with ordinary lexicographic string comparison. Values generated in the same millisecond are ordered by their random portion and are not guaranteed to increase unless a monotonic ULID algorithm is used.
Local generation and practical limits
Generation happens in this browser with crypto.getRandomValues and the values are never sent to a server. This page accepts batches of 1 to 100 ULIDs and provides copy and UTF-8 TXT download actions.
자주 묻는 질문
더 알아보기
What encoding does a ULID use?
This generator uses the standard Crockford Base32 alphabet, 01ABCDEFGHJKMNPQRSTVWXYZ, in uppercase.
Do ULIDs always sort in generation order?
They sort by millisecond timestamp first. Multiple values made in the same millisecond are random and therefore are not guaranteed to retain generation order.
Does the generator use a server?
No. Timestamp and random bytes are produced locally in your browser.
Are ULIDs passwords or encrypted values?
No. A ULID is an identifier, not a secret or encryption mechanism.