I need free software for my Daily sales / purchase in my General store that may use bar-code reader to see prices & updates sales and stock after sale purchase?

i should be able to store my stock info for example if i purchase 10kg suger that i upate in stock (Quantity +price) then i detecy its price using Bar-code reader and once sold 1 kg that is detucted from stock , and i shld be able to create / manage catagories . Will someone reffer me some software please .

Dani AI

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A short, practical summary to complement the thread: asked for free software that accepts barcode input, records purchases (stock + cost), and deducts quantities on sale (your 10 kg sugar → sell 1 kg example). correctly flagged the reader model as important, and ’s pointer is a reasonable starting place. Below are three real, free options plus a concise setup checklist and cautions.

Open Source Point of Sale (OSPOS) — a web‑based PHP/MySQL POS with stock, receivings (purchase entry), barcode generation/printing and sales that update inventory. Good for a self‑hosted shop that wants full control and low cost. (github.com)

uniCenta oPOS — a Java desktop/web hybrid POS aimed at retail/supermarket use. Cross‑platform, community edition is free and supports barcode scanners and standard retail workflows (sales, stock management, categories). It’s a solid choice if you prefer running a local terminal or simple server. (unicenta.com)

Loyverse — cloud/mobile POS (Android/iOS) that is free to start, easy to configure on a phone/tablet, and includes item/categories and basic inventory. Advanced inventory/history features are paid add‑ons, so check the Back Office feature limits before relying on it for complex purchasing workflows. (loyverse.com)

Quick setup and troubleshooting checklist (applies to all POS choices): confirm the scanner’s interface — many USB scanners act as a keyboard (HID/“keyboard wedge”) so a scan will appear where the text cursor is; test this in Notepad to verify and enable an “Enter” suffix so each scan finalizes an item. Configure your products with the correct base unit (e.g., set sugar’s base unit to kg and enter opening stock = 10); sell 1 kg and the system will decrement by 1 if the POS supports unit quantities. Beware of scale/weight barcodes used in groceries (GS1 weight AIs) — those require POS support for GS1 variable‑weight formats or alternate PLU handling. Always backup your database, test purchases/returns and barcode matches before going live. (docs.zebra.com)

These options cover common free paths: self‑hosted web app (OSPOS), local Java POS (uniCenta), or quick mobile/cloud (Loyverse). Each has tradeoffs in setup, hosting and advanced inventory features; the diagnostic steps above address the most common integration gaps with barcode scanners.

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Please help guys

I doubt there is free software available that integrates with your barcode scanner. What kind of reader do you have?

Here is link that may be helpful:

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