Generators
Coupon / Promo Code Generator
Generate bulk promo codes from a custom pattern.
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What is Coupon Codes?
A coupon code generator that lets you define a pattern (letters, digits, separators) and produce a batch of unique codes for promotions and giveaways.
How it works
The pattern is expanded using crypto.getRandomValues; a uniqueness set guarantees no duplicates within a batch.
- Enter your input. Type or paste your input into the field above — the tool responds instantly.
- Review the result. Output updates live as you type. Everything runs entirely in your browser.
- Copy or download. Use the Copy button to grab the result, or Download to save it as a file.
Examples
Bulk discount codes
Generate a batch of coupon codes with a custom prefix like SUMMER- and a configurable character pattern.
Common mistakes
Ambiguous characters
Codes customers type by hand shouldn't contain 0/O or 1/l — the generator can exclude them.
Frequently asked questions
Are codes guaranteed unique?
Within a batch, yes — duplicates are filtered; the character-set and length settings control the theoretical space.
Can I add a prefix and suffix?
Yes — both are configurable, and separators like dashes improve readability.