Coupon Code Generator - Create Bulk Discount Codes

Coupon Code Generator for Bulk Discount Codes

This coupon code generator creates random, unique discount codes in bulk for your store or campaign. Generate a single code or up to 500 at once, each one formatted exactly the way your platform expects.

Shape every code to match your brand: add a prefix like SALE or SUMMER, a suffix like 2026, choose which character types to use, set the length, and pick a separator for readability. Every code in a batch is unique, drawn from your browser's cryptographic randomness so the values stay unpredictable.

E-commerce store owners

Create discount codes to import into Shopify, WooCommerce, Magento, or any platform that accepts coupons.

Marketing teams

Generate unique promo codes for campaigns, influencers, partners, or one-off events.

Customer support

Issue individual apology or loyalty codes and track who received each one.

Event organizers

Produce registration or access codes for attendees in a single batch.

Private by design: every code is generated in your browser using its built-in cryptographic randomness. Your codes, groups, and notes are never sent to or stored on any server.

How to Generate Coupon Codes

Set the code format

Add an optional Prefix and Suffix, set the Code Length from 4 to 20 characters, and tick which Characters to use: uppercase (A-Z), lowercase (a-z), and numbers (0-9).

Choose a separator

Pick None for a continuous code, or a dash, underscore, or dot to split it into segments. With a separator on, set the Segment Length (how many characters between each mark).

Set quantity and generate

Choose how many codes you need (1 to 500), then click Generate Coupons. A preview appears with sample codes and the full list.

Export or save

Use Copy All to copy the list, Download to save a .txt file, or Save to Manager to store the batch as a tracked group.

Manage your codes

Open the Coupon Manager to search by code, note, or group name, filter by All / Used / Unused, mark codes as used, and add notes to track distribution.

Features

Flexible Code Format

Add a prefix and suffix, set a length from 4 to 20 characters, and mix uppercase, lowercase, and numeric characters.

Readable Separators

Split codes with a dash, underscore, or dot, and set the segment length so long codes stay easy to read.

Bulk Generation

Generate up to 500 codes in a single batch, with each code guaranteed unique within that batch.

Cryptographically Random

Codes use the Web Crypto API for unpredictable values that can't be guessed.

Exclude Ambiguous Characters

Drop look-alike characters (0/O, 1/I/l) so codes are easy to read aloud or type by hand.

Custom Character Set

Define your own set of characters to build codes from exactly the symbols you want.

Instant Preview

See sample code badges and the complete list before you copy, download, or save the batch.

Copy or Download

Copy every code to your clipboard or download the batch as a plain .txt file in one click.

Coupon Manager

Save each batch as a named, timestamped group, then expand it to work through the codes inside.

Usage Tracking

Mark codes as used or unused with one click, with a counter showing how many are spent.

Notes & Search

Add a note to any code, then search across codes, notes, and group names or filter by status.

Saved Locally

Your generator settings and saved groups are stored in your browser and restored on your next visit.

Frequently Asked Questions

How do I generate unique coupon codes?

Set your format and quantity, then click Generate Coupons. Every code in a batch is checked for uniqueness as it is created, so no two codes in the same batch repeat.

Can I add a prefix or suffix to my codes?

Yes. Type any text into the Prefix field (for example SALE or VIP) and the Suffix field (for example 2026 or PRO). Both are attached to every code in the batch, separated from the random part for clarity.

How many codes can I generate at once?

Up to 500 codes in a single batch. Set the Quantity with the slider or by typing a number from 1 to 500.

Are the generated codes truly random?

Yes. Codes are generated with the Web Crypto API (crypto.getRandomValues), which provides cryptographically secure random values, so codes are unpredictable and cannot be guessed.

How do I avoid duplicate or ambiguous codes?

Duplicates are prevented automatically within each batch. To stop hard-to-read codes, open Advanced and turn on Exclude ambiguous characters, which removes look-alikes such as 0 and O, or 1, I, and l. Note that very short codes with a tiny character set have few possible combinations, so the tool may return fewer unique codes than requested.

Can I use these codes with Shopify, WooCommerce, or other platforms?

Yes. The codes are plain text, so you can import them into Shopify, WooCommerce, Magento, or any system that accepts coupon codes. Use Copy All or Download to export the list as text.

How do I track which codes have been used?

Click Save to Manager after generating. In the Coupon Manager, open a group and click the check icon next to any code to mark it used, add notes to record recipients, and filter by All, Used, or Unused.

Where are my saved coupon groups stored?

All saved groups, settings, and notes are stored locally in your browser and never sent to a server. If you clear your browser data, the saved groups are removed.