A coupon code generator creates unique, random promotional codes for your e-commerce store or marketing campaigns. Configure the prefix, length, and character set, then export a batch of codes to CSV or TXT for direct import into Shopify, WooCommerce, or any other platform.
Configure Code Format
Letters/numbers only, max 20 characters
Example: SAVE-A3X7-K9M2 (easier to read and type)
A3X7K9M2
Generated Codes
How to Use the Coupon Code Generator
Creating promotional codes for an e-commerce store used to require a developer or a paid tool. This coupon code generator lets you create hundreds of unique promo codes in seconds — with full control over format, length, and character set.
Step 1: Set Your Prefix
A prefix makes codes recognizable and campaign-specific. For a summer sale, use SUMMER25. For a loyalty campaign, use VIP. The prefix is prepended to every code in the batch. Leave it blank for purely random codes.
Step 2: Configure Format and Length
Code length of 6-10 characters is the sweet spot — long enough to be unpredictable, short enough to type without errors. Use the separator dropdown to add a dash or underscore between the prefix and random part. The segmented option splits the random portion into groups of 4 (e.g., SAVE-A3X7-K9M2) for maximum readability.
Step 3: Choose a Character Set
Uppercase + numbers is the standard for most promo codes. Enable the "Exclude ambiguous characters" option (on by default) to remove characters that look alike — 0 and O, I and l and 1 — which prevents customer frustration when codes are typed manually from a printed flyer or email.
Step 4: Generate and Export
Set the batch size (up to 100 codes) and click Generate. The tool guarantees all codes are unique within the batch. Export to CSV for direct import into Shopify or WooCommerce, or TXT for a simple list. You can also copy all codes to clipboard for pasting directly into a bulk coupon tool.
Importing Into Your Store
Most e-commerce platforms support bulk coupon import via CSV. In Shopify, go to Discounts → Import and upload the CSV file. In WooCommerce, use the built-in coupon import or a plugin like Smart Coupons. The CSV from this generator contains a single column of codes, which is the standard format most platforms expect.
Best Practices for Promo Codes
Use a unique batch of codes for each campaign to track which channel drives conversions. Set expiry dates in your platform rather than encoding them in the code itself. For single-use codes (prevent sharing), generate at least 3x the number of expected redemptions to handle edge cases.
FAQ
How does the coupon code generator work?
The generator creates random alphanumeric codes based on your settings. You choose a prefix (like SAVE or SUMMER), code length, character set (letters, numbers, or both), and how many codes to generate. Each batch is guaranteed to contain unique codes with no duplicates.
Is this coupon code generator free?
Yes, completely free with no signup or account required. Generate as many codes as you need and export them in any format.
Can I generate codes in bulk?
Yes, you can generate up to 100 unique codes at once using the batch size slider. All codes are unique within a batch. Use the Download CSV button to export the entire batch for use in your e-commerce platform or marketing tool.
What format should coupon codes be in?
The best coupon codes are 6-12 characters, uppercase alphanumeric, with an optional descriptive prefix. For example, SUMMER-A3X7K9. Short codes are easier to type manually; longer codes are harder to guess. Segmented codes like XXXX-XXXX improve readability.
How do I use these codes in my store?
Export the CSV, then import it into your e-commerce platform (Shopify, WooCommerce, BigCommerce, etc.) using their bulk coupon import feature. Each platform has a slightly different import format — the CSV from this tool includes just the code column, which most platforms accept.
Are the generated codes truly unique?
Yes, the generator checks for duplicates before adding each code to the batch. If a collision occurs (extremely rare for batches under 1,000), it regenerates that code until it's unique. For very large batches, increase the code length to reduce collision probability.
Can I add a prefix to all my coupon codes?
Yes, enter any prefix text (e.g., SAVE, PROMO, HOLIDAY) and it will be prepended to every generated code. You can also choose the separator between prefix and random part — dash, underscore, or no separator. Prefixes help organize codes by campaign.