Price Tag and Shelf Label Maker with Was and Now Prices

Price Tag and Shelf Label Maker is an offline app (one HTML file in a zip). You keep your products with the price, the old price, the pack size and a barcode number, choose a tag layout and a sticker sheet, and print tags or save a PDF whose tags sit on the die cuts. The app remembers the price on every tag you printed, so a price change shows up on a list of tags that are now wrong.

The problem it removes: Shelf tags are typed again every time a price changes, the old price and the percentage off are worked out by hand, unit prices are skipped, and nobody knows which shelf still shows last month's price. This app turns one product list into tags and keeps track of which tags are out of date.

What is inside:

• Product list with price, was price, pack quantity, unit price, barcode, offer dates and copies, with the percentage off worked out for you
• Three tag layouts: shelf edge, sale tag with an offer band, and compact
• Four ways to show a price, including big dirhams with small fils
• Reprint list: tags never printed, or printed at an older price, with a button to mark tags as printed
• Seven common A4 sticker sheet grids you can edit, with a test page and offset calibration
• Barcode on the tag as EAN-13 or Code 128, verified by decoding
• Print through the browser or download a PDF at exact page size
• Example data you can load in one click, a Start here guide and an Honest limits panel
• JSON backup and restore, CSV export, and CSV import with a check of every row before anything is added

Who it is for: small shops, groceries, gift and craft stalls and market sellers who print their own shelf tags and offer tags on sticker sheets or plain paper.

What it is NOT: It does not sell, scan or count stock and does not post prices to a till or a shop screen. It does not check that a price display follows any local pricing or consumer rules, so check those yourself. The unit price is calculated from the pack quantity you type. Barcode numbers are the ones you type and the app does not allocate or look them up. The PDF file holds Latin letters only: Arabic names print through the browser's own Print and Save as PDF. It is not legal, tax or accounting advice, it is not connected to any government system, bank or messaging service, and it does not file or send anything by itself. UAE e-invoicing is not part of it.

Your data stays on this device in your browser. Back it up with Export; clearing browser data loses it otherwise.

Verified by us: scripted tests in Chromium (112 checks through the real screens: adding, editing and deleting records in every table, required-field messages, backup then clear then restore, CSV export then import, keyboard order, print layouts rendered to PDF, no horizontal scrolling at 375 and 1280 pixels, no network requests) and an independent recalculation by a separately written Python evaluator of 942 calculated values (25 randomised rows plus the example data) with 0 mismatches. Safari engine (WebKit): smoke test passed; Firefox: could not be launched. Not tested: Firefox beyond what is stated here, and no real printer was used (print layouts were checked as PDF).