How to Use
Set Format Choose character types, prefix, code length, and quantity.
Configure Separator Optionally add separators (dash / underscore / dot) every N characters for readability.
Generate & Export Click Generate, then copy all codes at once or individually.
Use Cases
E-commerce: Generate unique discount codes for sales events and store-wide promotions.
Membership: Generate codes with custom prefixes for different campaigns or customer segments.
Content: Offer exclusive codes to followers with personal branding.
Events: Generate codes for exhibitions and store promotions.
Technical Details
Code Design Principles: Good coupon codes balance readability and security. Use uppercase + number combinations, exclude ambiguous characters (O/0, I/1/l), and ensure sufficient entropy to prevent brute force guessing.
Frequently Asked Questions
Can I use the codes commercially?
Yes. Codes use secure random characters, suitable for e-commerce, marketing, and membership systems. No records are kept.
What formats are supported?
Uppercase, lowercase, numbers. Custom prefix, length (4-32), separator. Ambiguous chars excluded by default.
How many per batch?
Up to 1,000. Copy all at once or individually. All processing is local.
Will codes be unique?
Yes. Duplicate detection is enabled by default. Real-time deduplication ensures uniqueness.
Are the codes secure?
Generated with Crypto.getRandomValues() API. All processing is local - codes never leave your device.