POS Software in Rotterdam, free and open source

Retailers and restaurants in Rotterdam are moving to Posnic, a complete POS (kassa) software that costs nothing and hides nothing. It is open source, runs fully offline on your own computer, and handles sales, inventory and reports without a monthly fee.

Why Rotterdam businesses choose Posnic

Multi-store ready

Run one shop or a chain across Netherlands: each store keeps its own settings, consolidated in cloud dashboards when you subscribe.

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

VAT (BTW) ready

Configurable tax groups handle VAT (BTW) with inclusive or exclusive pricing, printed correctly on every receipt.

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

POS Software questions from Rotterdam

Is Posnic POS software really free in Netherlands?

Yes. Posnic Community Edition is free forever, everywhere including Rotterdam. It is open source under AGPL-3.0 with all features included. Posnic Cloud, the optional sync and backup service, is the only paid product.

Does Posnic work offline in Rotterdam?

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 VAT (BTW) in Netherlands?

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

Also in Netherlands: Amsterdam · The Hague

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