Free Online Tools for Australia AU

Do Generator Australia provides free online tools built for Australian users. Generate random numbers, QR codes, barcodes, and secure passwords with Australian English spelling, four-digit postcode formatting, and designs that work across all states and territories including regional areas.

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

Number of ULIDs

Format Options

Lowercase letters

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