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Coupon Code Generator

Used by developers, writers, and creators worldwide.

A coupon code generator is the fastest way to produce batches of unique, random discount codes for e-commerce promotions, email campaigns, or loyalty programs. Typing codes by hand risks duplicates and predictable patterns — this tool avoids both. Confusing character pairs like O/0 and I/1 are stripped from the pool automatically, so customers type codes correctly the first time. Set a prefix like FALL25 or VIP- and every code in the batch carries that label, making campaign attribution easy inside Shopify, WooCommerce, or your CRM. Adjust code length from a compact 6 characters for event vouchers up to 12 for high-value referral rewards. Generate up to hundreds of codes at once and paste the list directly into a bulk import.

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Free forever — no account required

How to use

  1. Choose your options above
  2. Click Generate
  3. Copy your result

Detailed instructions

  1. Set the count field to how many coupon codes you need in this batch.
  2. Enter an optional prefix (e.g., SALE, VIP, or REF-NAME) to brand all codes in the batch.
  3. Adjust the code length if needed — 8 is standard, but increase to 10–12 for high-security codes.
  4. Click Generate to produce your list of unique alphanumeric discount codes.
  5. Copy the full list and paste directly into your e-commerce platform's bulk coupon importer or CSV.

Use Cases

  • •Pasting 50 FALL25-prefixed codes directly into Shopify Admin bulk discount importer
  • •Generating 200 unique referral codes for affiliate partners, each prefixed with their handle
  • •Creating short 6-character single-use vouchers for event staff to redeem at check-in
  • •Seeding a WooCommerce staging environment with test promo codes via Smart Coupons CSV import
  • •Issuing early-access invite codes for a SaaS beta, tracked by campaign prefix in your CRM

Tips

  • →Use a campaign-specific prefix like INFL-NAME for influencer codes so you can filter redemptions by creator in your order export.
  • →Generate 20% more codes than you need — this gives you replacements if any fail your platform's deduplication check.
  • →For print materials like flyers or receipts, keep code length at 6 and add a memorable prefix; shorter codes reduce handwriting errors.
  • →If your platform is case-insensitive, stick to uppercase-only inputs for the prefix to avoid mismatches when customers type lowercase.
  • →Pair a short expiry window with longer codes (10+ characters) for flash sales — urgency reduces sharing risk, length reduces guessing risk.
  • →Run a quick Find & Replace after copying if your platform requires hyphens inside codes — e.g., swap every 4th character position manually in a spreadsheet.

FAQ

how do I import generated coupon codes into Shopify or WooCommerce

In Shopify, go to Admin > Discounts > Bulk discount codes, paste the list directly — one code per line. For WooCommerce, drop the codes into the code column of a Smart Coupons CSV template and import that file. Both platforms will flag any duplicates before the codes go live.

are randomly generated coupon codes safe from brute-force guessing

At 8 characters from a 32-character pool (O, 0, I, and 1 removed), the search space is over 1 trillion combinations — low practical risk. For high-value discounts, push length to 10–12 characters and set a per-code usage limit of one inside your platform to close any remaining window.

does the prefix count toward the code length setting

No — the length field controls only the random segment. A prefix of SUMMER and a length of 8 produces codes like SUMMERX4KR7P2Q, where SUMMER is prepended separately. Keep prefixes short (4–8 characters) and add a trailing dash so the random portion stays readable and filterable in exports.