What Is Coupon Code Generator?

Coupon Code Generator is a powerful tool that lets you create random, unique discount codes in bulk for your business. Whether you need 10 codes for a small promotion or 500 for a large campaign, you can generate them instantly with your preferred format.

Customize every aspect of your codes — add a prefix like SALE or SUMMER, choose character types, set the length, and pick separators for readability. Each code is guaranteed to be unique within a batch, and generated using cryptographically secure random values.

Who Is This Tool For?

E-commerce Store Owners

Create discount codes for Shopify, WooCommerce, or any platform

Marketing Teams

Generate unique promo codes for campaigns, influencers, or events

Customer Support

Issue individual apology or loyalty codes to customers

Event Organizers

Create registration or access codes for attendees

Your Data Stays Private

100% Client-Side Generation: All codes are generated in your browser using cryptographic random functions. No server processing, no tracking, no data collection.

No Server Processing

Codes are never sent to or stored on our servers

No Tracking

We don't collect any data about your generated codes

Fully Offline Capable

Works even without an internet connection after loading

How to Use Coupon Code Generator

Configure Your Code Format

Set up how your coupon codes should look:

Prefix — Optional text at the beginning (e.g., SALE, SUMMER, VIP)
Suffix — Optional text at the end (e.g., 2026, US, PRO)
Code Length — The random portion length, from 4 to 20 characters
Characters — Choose from uppercase letters (A-Z), numbers (0-9), and lowercase letters (a-z)

Choose Separator Style

Select how code segments are separated for better readability:

Options

None — ABCD1234
Dash (-) — ABCD-1234
Underscore (_) — ABCD_1234
Dot (.) — ABCD.1234

Customization

When using a separator, you can also adjust the segment length (how many characters between each separator).

Set Quantity and Generate

Choose how many codes to generate (1 to 500), then click Generate Coupons. A preview will appear showing sample codes and the full list.

Export or Save

From the preview, you can:

Copy All — Copy all codes to your clipboard
Download — Save as a .txt file
Save to Manager — Store the group in Coupon Manager for tracking

Manage Your Codes

Open the Coupon Manager section to:

Search codes by value, note, or group name
Filter by status (All, Used, Unused)
Mark individual codes as used or unused
Add notes to track distribution or recipients
Export groups with their status and notes

Features

Flexible Code Formatting

Create codes that match your brand and system requirements. Add a recognizable prefix like SALE or VIP, choose between uppercase, lowercase, and numeric characters, and set the exact length you need. Use separators to make long codes more readable.

Bulk Generation

Generate up to 500 unique codes in a single batch. Each code is guaranteed to be unique within the batch, created using cryptographically secure random number generation for unpredictable results.

Advanced Options

Fine-tune your codes with advanced settings:

Exclude ambiguous characters — Remove characters that look similar (0/O, 1/I/l) to prevent confusion
Custom character set — Define your own set of characters to use in code generation

Coupon Manager

A built-in management system for your generated codes:

Organized groups — Each generation creates a named group with timestamp and configuration details
Usage tracking — Mark codes as used or unused with visual progress counter
Notes — Add inline notes to track recipients, channels, or context
Search and filter — Find specific codes by value, notes, or group names
Export — Copy or download any group with complete status and notes

Persistent Settings: Your generator configuration and saved coupon groups are automatically stored and restored when you return. No account needed — data is saved locally in your browser.

Frequently Asked Questions

Are the generated coupon codes truly random?

Yes. Codes are generated using the Web Crypto API (crypto.getRandomValues), which provides cryptographically secure random numbers. This ensures codes are unpredictable and cannot be guessed.

Can I generate codes with only numbers?

Yes. Simply check only the 0-9 checkbox in the Characters section. You can also combine it with letters or use a custom character set.

What happens if I generate more codes than possible combinations?

The generator will create as many unique codes as possible. For example, if you request 500 codes with only 4 numeric digits (10,000 possible combinations), all 500 will be unique. However, with very small character sets and short lengths, you may get fewer codes than requested.

Where are my saved coupon groups stored?

All data is stored locally in your browser using localStorage. Nothing is sent to any server. If you clear your browser data, saved groups will be removed.

Important: Clearing browser data will permanently delete all saved coupon groups. Consider exporting important groups before clearing browser storage.

Can I use these codes with my e-commerce platform?

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

What does "Exclude ambiguous characters" do?

It removes characters that look similar to each other: the number 0 and letter O, the number 1 and letters I and l. This is useful when codes will be printed, read aloud, or manually entered, reducing the chance of input errors.

Without Exclusion

O0IL1l — Confusing characters included

With Exclusion

ABCD23 — Clear, distinct characters only

How do I track which codes have been used?

After generating codes, click Save to Manager. In the Coupon Manager section, click the check icon next to any code to mark it as used. You can also add notes and filter by usage status.

Visual progress counter shows usage statistics
Filter codes by All, Used, or Unused status
Add custom notes to track distribution details
Export complete usage data with notes