Coupon Processing Tool Now Live — Free to Use
I used AI to build an online coupon processing tool. The reason was that I used to work with redemption codes, virtual card keys, and serial numbers — always doing categorization, prefix/suffix adding, organizing, and replacing in a local spreadsheet, which was tedious every time. So I had AI write me a coupon processing tool to meet my daily needs.
It officially launched on September 20, 2026, accessible via a subdomain: Coupon Processing Tool
12 Features
| Feature | Description |
|---|---|
| Text Replace | Batch find and replace in coupon text |
| Add Prefix/Suffix | Batch add prefix or suffix to each line |
| Merge/Split Lines | Merge multiple lines or split by delimiter |
| Delete by Position | Delete characters at specified positions per line |
| Trim Spaces & Empty Lines | Remove spaces, blank lines, and leading/trailing whitespace |
| Random Coupon Generator | Batch generate coupon codes with custom character set |
| Duplicate Lines | Repeat each line by a specified count |
| Deduplicate | Remove duplicate lines, keep first occurrence |
| Split into Batches | Group and export by rows per batch |
| Card Set Generator | Batch generate card sets with prefixes and suffixes |
| Card Set Numbering | Batch append serial numbers to coupons |
| Shuffle | Random shuffle or ascending/descending sort |
The tool is bilingual (Chinese/English) and works on both desktop and mobile. It is published as a free online web tool, covering common scenarios for generating, modifying, deduplicating, and sorting coupon text.
All processing happens locally in the browser. Data is never uploaded, cached, or stored.
FAQ
How to batch process accounts and passwords?
Paste your account-password list into the input box. Use "Text Replace" to batch change separators, then use "Merge/Split Lines" to split accounts and passwords into separate lines, and finally use "Trim Spaces & Empty Lines" to clean up. One click and done.
How to batch add prefixes and suffixes to coupons?
Use the "Add Prefix/Suffix" feature. Enter your prefix (e.g. "VIP-") in the prefix field and suffix (e.g. "-2026") in the suffix field. Click process and every line gets the prefix and suffix added automatically.
How to batch generate coupon codes?
Use the "Random Coupon Generator" to define your character set (letters, numbers, symbols), set the code length and quantity, then generate thousands of random codes in one click. For structured card sets, use the "Card Set Generator" with prefixes and serial numbers.