FreeDev Tools

ULID Generator

Generate ULIDs — sortable, timestamped, URL-safe alternatives to UUID.

How to Use

  1. 1

    Set the count

    Generate up to 100 ULIDs at once.

  2. 2

    Click Generate

    Each ULID embeds the current timestamp.

  3. 3

    Copy the IDs

    Optionally lowercase — ULIDs are case-insensitive.

Frequently Asked Questions

A 26-character identifier: 48 bits of millisecond timestamp followed by 80 bits of randomness, encoded in Crockford base32. Sorting ULIDs lexicographically sorts them by creation time.

Related Tools

Password Strength CheckerCheck password strength and crack time estimateAES EncryptionEncrypt and decrypt text with AES-256 in your browserTOTP / 2FA GeneratorGenerate TOTP codes from a secret key (Google Authenticator compatible)SHA-256 GeneratorGenerate SHA-256 hashes from any textMD5 GeneratorGenerate MD5 hashes for checksums and fingerprintingSalt GeneratorGenerate cryptographic salt values for password hashingJWT BuilderBuild and sign JWT tokens with a custom payload and secretXOR CipherEncrypt or decrypt text with a XOR key