Discount Code Batch Mint

Generate thousands of unique, human-typeable promo codes (no 0/O, 1/I confusion) in patterns like SPRING-XXXXXX, exported in Shopify and WooCommerce import format.

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Pattern (use X for random characters, e.g. SPRING-XXXXXX)

How many codes (max 50,000)

Character set

Append a checksum character Expiry date (optional) Existing codes to avoid (paste a CSV or one code per line, optional)

Runs 100% in your browser. Your files never leave this device.

How it works

Pattern builder: a prefix plus a run of X characters, with an unambiguous default charset so codes survive being read aloud or typed from a printed insert.
Codes are generated with crypto.getRandomValues and kept unique in memory, up to 50,000 per batch.
Paste your existing codes and any collision is excluded before export.
Optional checksum character helps support staff spot a mistyped code.
Export a plain list, a Shopify discount CSV or a WooCommerce coupon CSV.