Unique Code Generator

Up to a billion unique codes

Only for Mac

Free · In‑App Purchases

Mac

Version 2 makes up to a billion unique codes at a time. Design your own patterns and see the chance of guessing a code before you start. The free version makes up to 1,000 codes at a time. A one-time purchase lets you make up to 1 billion codes at a time, with free updates and no subscription. Unique Code Generator makes as many unique codes as you need on your Mac, in the format you choose. Use them for voucher and promo codes, on-package promotions, loyalty programs, contest entries, tickets, serial numbers, invite codes and PINs. FAST • Millions of codes in seconds and up to 1 billion at a time. • • Codes are saved to a .txt or .csv file, ready for a spreadsheet, database or website, or for your print software. UNIQUE • No two codes in a file are the same. Uniqueness is built into how the codes are made rather than checked afterwards, so you always get the number you asked for. • Each run starts from a new random key, so seeing some codes won't help anyone guess others. YOUR FORMAT • Choose a ready-made character set or type your own. The default leaves out characters that look alike, such as 0 and O or 1 and I. • Set a length or design a pattern such as PROMO-^^^^-^^^^ with fixed text, letters, numbers and symbols in the positions you choose. • Hexadecimal, UUID-style and emoji character sets are included too. BLOCKED WORDS • Block profanity is on by default. It also catches words spelled with look-alike numbers and symbols. • Add your own words to block, such as competitor names. • Codes containing a blocked word are skipped, so the file still has the number of codes you asked for. ESTIMATES • Before you start, see how many codes are possible, the chance of someone guessing a valid code, the file size and roughly how long it will take. • You'll get a warning if your codes would be too easy to guess. FILES • Text or CSV with an optional header row. • Mac & Linux or Windows line endings. • Start codes with a letter so spreadsheets don't drop a leading 0 or read codes as formulas. • A check that there's enough disk space before writing. PRIVATE Everything happens on your Mac. There's no account to create and nothing needs an internet connection. No data is collected. FREE TO TRY Every feature works in the free version. If you bought version 1, version 2 is already unlocked for you.

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Version 2 is a complete rewrite. • Up to 1 billion codes at a time. • Code patterns such as PROMO-^^^^-^^^^. • A profanity filter plus your own blocked words. • Live sample codes and estimates, including the chance of guessing. • CSV header row, line-ending choice and a disk-space check. • Longer codes plus hexadecimal, UUID-style and emoji character sets. • A new design with dark mode. • Free to try with a one-time unlock. Version 1 owners are already unlocked.

The developer, David Alexander, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Seller
    David Alexander
    Size
    2.5 MB
    Category
    Business
    Compatibility
    Requires macOS 15.0 or later.
    • Mac
      Requires macOS 15.0 or later.
    Languages
    English
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026 David Alexander