Do Generator

Free Online Tools for India IN

Do Generator India brings you free online tools optimized for Indian users. From random number generation to QR codes, barcodes, and AI prompts, our tools support Indian English conventions, six-digit PIN code patterns, mobile-first workflows, and content needs across India.

ULID Generator

Generate ULIDs (Universally Unique Lexicographically Sortable Identifiers). 26 characters, URL-safe, time-sortable, and compatible with UUIDs.

100% Secure - Generated Locally in Your Browser
Time Sortable URL Safe 48-bit Timestamp

Generate ULID

Create sortable unique identifiers

Generated ULIDs

Click "Generate ULIDs" to create unique identifiers

ULID Structure

Each ULID consists of two parts: timestamp and randomness

TIMESTAMP (10 chars) RANDOMNESS (16 chars)

01ARZ3NDEKTSV4RRFFQ69G5FAV

Example: This ULID was generated at a specific millisecond and includes 80 bits of randomness

Timestamp (48 bits)

Milliseconds since Unix epoch (1970-01-01). Provides time-ordered sorting and lasts until 10889 AD.

Randomness (80 bits)

Cryptographically secure random value. Provides 1.21 quintillion unique IDs per millisecond.

Technical Specifications

ULID is designed to be sortable, URL-safe, and compatible with UUIDs

Features

  • Cryptographically secure randomness
  • Client-side generation only
  • Lexicographically sortable
  • No special characters (URL-safe)

Specifications

  • 26 characters (128 bits)
  • Crockford's Base32 encoding
  • 48-bit timestamp + 80-bit randomness
  • 1.21M IDs per millisecond