POS Software in Sao Paulo, free and open source

Searching for POS (PDV) software in Sao Paulo? Posnic gives Brazil businesses the full package: fast checkout, inventory, ICMS handling and reports, free forever and open source, with billing that keeps working when the internet does not.

What shops in Sao Paulo get with Posnic

Free and open source

The complete application is public on GitHub under AGPL-3.0. No trial, no feature locks, no telemetry.

Your data stays yours

Everything lives in a local database you control, exportable to CSV any day, with a documented sync protocol.

Hardware friendly

Thermal receipt printers, barcode scanners, label printing, weighing scales and cash drawers are all supported.

Works offline, always

Checkout in Sao Paulo never waits on the internet. Posnic runs on the shop computer, keeps billing through any outage, and syncs later if you use Posnic Cloud.

ICMS ready

Configurable tax groups handle ICMS with inclusive or exclusive pricing, printed correctly on every receipt.

Your currency, your format

Prices, receipts and reports display in reais with local number formatting, configured once per store.

Posnic for your business: Grocery · Restaurants · Cafes · Fashion · Pharmacy · Electronics · Hardware

POS Software questions from Sao Paulo

Does Posnic work offline in Sao Paulo?

Yes, completely. The software runs on your own computer and needs no internet connection to sell, print receipts or manage stock. Cloud sync, if you use it, catches up automatically when the connection returns.

Does Posnic handle ICMS in Brazil?

Posnic uses configurable tax groups, so ICMS rates are set once and applied automatically, with inclusive or exclusive pricing and tax-wise report summaries.

What hardware do I need to run Posnic in Sao Paulo?

Any Windows computer. Standard USB barcode scanners, thermal receipt printers, cash drawers, weighing scales and touch screens all work. Existing hardware from a previous system usually carries over.

Also in Brazil: Rio de Janeiro · Brasilia · Salvador

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