Coupon code generator
Set a prefix, length and quantity and instantly get a list of unique, random codes — ready to copy or download as a CSV file.
0 unique codes generated:
Truly random codes, powered by your browser
This generator uses crypto.getRandomValues, the cryptographic random number generator built into every modern browser — far less predictable than the classic "random" function in a spreadsheet. That matters a lot for coupons: a discount code that's easy to guess can be exploited at scale. With 8 characters drawn from a 32-symbol alphabet, the number of possible combinations exceeds a trillion, so brute-force guessing a valid code becomes practically pointless.
Why duplicates and ambiguous characters are filtered out
Every list you generate is checked to be duplicate-free, so you can import it straight into Shopify, WooCommerce or an Excel sheet with no surprises. The option that removes 0/O and 1/I is for codes that get read aloud over the phone or printed on flyers and receipts: those are the character pairs people mix up most often, and dropping them dramatically cuts down on "invalid code" errors at redemption time.