ULID (Universally Unique Lexicographically Sortable ID) Generator
Generate 26-character Crockford Base32 ULID identifiers. 128-bit compatibility with UUIDs, 1-millisecond timestamp precision, and URL-safe characters.
1 How to Use ULID (Universally Unique Lexicographically Sortable ID) Generator
- 1. Select quantity.
- 2. Generate timestamp-sorted 26-character Crockford Base32 ULIDs.
- 3. Copy to clipboard.
⚙️ Cryptographic Specifications
- Algorithm
- ULID Spec
- Execution Engine
- Web Cryptography API (SubtleCrypto)
- Environment
- Client Browser Sandbox
- Network Telemetry
- 0 Bytes (Zero Server Transmission)
🛡️ Security & Compliance
Enterprise developers can safely execute this tool with production secrets. Because execution takes place entirely within your browser's local V8 JavaScript runtime, no payloads are transmitted over HTTP, cached on third-party proxies, or stored in server logs.
Verified Safe for SOC2, HIPAA, and GDPR developer compliance audits.
Frequently Asked Questions
What is ULID?
A 128-bit identifier represented as 26 Crockford Base32 characters that sorts chronologically down to millisecond accuracy.
Related Cryptographic Tools
ULID Timestamp & Randomness Decoder
Decode 26-character ULID strings into their exact Unix millisecond timestamp, human-readable ISO date, and 80-bit randomness payload in your browser.
UUID v7 (Time-Ordered Modern RFC 9562) Generator
Generate time-ordered UUID v7 identifiers specified in RFC 9562. Combines millisecond Unix timestamp with random bits for optimal database B-Tree index performance.
NanoID Secure Collision-Resistant ID Generator
Generate compact, URL-friendly unique IDs using the NanoID algorithm. Smaller than UUID (21 characters) with equal or higher collision resistance.