Coupon Code Generator
Free bulk generator for unique promo and discount codes.
How to use
- 1 Set how many codes you want and the segment length and count.
- 2 Choose a separator, and add an optional prefix or suffix.
- 3 Pick a character set — keep "no ambiguous" for readable codes.
- 4 Press Regenerate to produce a fresh batch.
- 5 Copy all the codes to paste into your store or spreadsheet.
About Coupon Code Generator
The Coupon Code Generator creates batches of unique discount, promo and voucher codes ready to load into a store, email campaign or spreadsheet. Choose how many codes you need, how many characters each segment contains, and how many segments join together, then pick a separator to get tidy codes like SAVE-7K9M-2QXP. You can add a fixed prefix and suffix, which is handy for branding a campaign or tagging codes with a year, and both are automatically uppercased so the output stays consistent.
By default the generator uses a human-friendly character set that drops the easily confused characters — no zero versus letter O, no one versus letter I or L — so customers reading a code off a screen, receipt or sticker are far less likely to mistype it. If you prefer, you can switch to letters-and-digits, letters only, or digits only. Every code in a batch is guaranteed unique, and the tool warns you up front if the length and character set cannot supply enough distinct combinations for the quantity you asked for.
Codes are produced with the browser’s cryptographic random number generator, so they are unpredictable rather than sequential, and nothing is uploaded or stored — the whole batch is generated locally and works offline. Hit Regenerate to roll a fresh set, then copy them all in one click or download them as a CSV file that opens straight in Excel or Google Sheets. The generator is completely free with no sign-up and no limits on how often you use it, and it suits any platform that accepts imported codes: Shopify, WooCommerce, Magento, BigCommerce, Wix, Squarespace, Stripe promotion codes, email tools such as Mailchimp and Klaviyo, or a point-of-sale system.
Typical uses include one-time-use discount codes for a newsletter list, unique promo codes for influencers and affiliates, gift voucher and referral codes, event tickets and redemption keys for giveaways.
FAQ
How do I generate coupon codes for free?
Set the quantity, length and optional prefix above and the codes appear instantly. There is no account, fee or watermark, and nothing is uploaded — everything runs in your browser.
How many coupon codes can I generate at once?
Up to 500 unique codes per batch. Press Regenerate for another batch if you need more, and use a longer code or more segments so separate batches are very unlikely to overlap.
Can I export the codes to Excel or Shopify?
Yes. Click Download CSV to save a one-column file with a "code" header that opens in Excel or Google Sheets and can be imported into Shopify, WooCommerce and most store or email platforms. You can also copy all codes to the clipboard.
What makes a good promo or discount code?
Use a short branded prefix (e.g. SUMMER), 8–12 random characters so codes cannot be guessed, and avoid look-alike characters. Unique single-use codes are safer than one shared code because they cannot be leaked to coupon sites.
Are the generated codes guaranteed unique?
Within a single batch, yes — duplicates are filtered out. Across separate batches, very long codes make collisions vanishingly unlikely but are not formally guaranteed.
Why does it skip characters like 0 and O?
The default set leaves out characters people commonly confuse (0/O, 1/I/L) so codes are easier to read aloud and type without errors. You can switch to a full set if you prefer.
How random are the codes?
They are drawn from the browser’s cryptographic random generator, so they are unpredictable rather than sequential, which makes them harder to guess.