Set Format 选择字符类型，设置前缀、代码长度和生成数量。/ Choose character types, prefix, length, and quantity.
Configure Separator 可选在代码中加分隔符（短横线/下划线/点号）。/ Optionally add separators for readability.
Generate & Export 点击「生成优惠码」，支持一键复制全部或逐条复制。/ Click generate, copy all codes at once or individually.
E-commerce：在电商平台开展满减折扣活动，批量生成唯一优惠码。/ Generate unique discount codes for sales events.
Membership：为会员系统生成专属优惠码，支持自定义前缀区分不同活动。/ Generate codes with custom prefixes for different campaigns.
Content：为粉丝提供专属折扣码，附带个人品牌前缀。/ Offer exclusive codes to followers with personal branding.
Events：展会促销、门店活动等场景，生成一批实体优惠券。/ Generate codes for exhibitions and store promotions.
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.
Yes. Codes use secure random characters, suitable for e-commerce, marketing, and membership systems. No records are kept.
Uppercase, lowercase, numbers. Custom prefix, length (4-32), separator. Ambiguous chars excluded by default.
Up to 1,000. Copy all at once or individually. All processing is local.
Yes. Duplicate detection is enabled by default. Real-time deduplication ensures uniqueness.
Generated with Crypto.getRandomValues() API. All processing is local - codes never leave your device.