Turn any tablet or iPad into a cash register. Vollstart POS Desk is a free, self-hosted Point of Sale plugin for WordPress \u2014 no WooCommerce, no cloud subscription, no monthly fees. All your data stays in your WordPress database.<\/p>\n\n
The free version is fully functional \u2014 unlimited terminals, unlimited products, and all core POS features listed above. The Pro add-on adds the features listed below for businesses that want more.<\/p>\n\n
Scale your business:<\/strong><\/p>\n\n Sell smarter:<\/strong><\/p>\n\n Accept more payments:<\/strong><\/p>\n\n Advanced features:<\/strong><\/p>\n\n That's less than 5 EUR\/month \u2014 a fraction of what cloud POS systems charge.<\/p>\n\n Premium features require the separate Pro add-on plugin<\/a>.<\/p>\n\n This plugin optionally connects to the following external services:<\/p>\n\n When the \"EAN product lookup\" option is enabled in Settings, this plugin sends the scanned EAN barcode to the Open Food Facts API (openfoodfacts.org) to retrieve product name, ingredients, and image. No personal data is transmitted. This feature is disabled by default<\/strong> and must be explicitly enabled by the site administrator.<\/p>\n\n The Pro add-on plugin integrates Stripe for card-reader payments (tap, chip, Apple Pay, Google Pay). The Stripe.js SDK (js.stripe.com) is loaded by the Pro add-on when a Stripe card reader is connected at the terminal. The SDK collects payment data directly in the browser and submits it to Stripe \u2014 no payment data passes through your WordPress server. Stripe handles all payment data under their own terms.<\/p>\n\n The Pro add-on uses Stripe Terminal's SDK (js.stripe.com\/terminal\/) to control physical Stripe card readers connected to the terminal computer (Wise Pad 3, etc.). The SDK runs locally in the browser and communicates directly with the card reader hardware. No card data is stored on your WordPress server.<\/p>\n\n The Pro add-on integrates SumUp for card-reader payments. The SumUp SDK (gateway.sumup.com) is loaded by the Pro add-on when a SumUp card reader is connected at the terminal. The SDK collects payment data directly in the browser and submits it to SumUp \u2014 no payment data passes through your WordPress server. SumUp handles all payment data under their own terms.<\/p>\n\n When the \"Vollstart Wallet\" option is enabled, receipts include a QR code that customers can scan with the Vollstart Wallet app. The receipt data is exposed via a public REST endpoint (only the data the merchant has chosen to publish \u2014 receipt number, items, total). The endpoint is open by design so the mobile app can read it without auth.<\/p>\n\n This plugin bundles the following libraries:<\/p>\n\n That's it \u2014 you're ready to ring up your first sale.<\/p>\n\n\n No. Vollstart POS Desk works completely independent of WooCommerce.<\/p><\/dd>\n By default, WordPress users with the Any printer your browser can print to. For thermal receipt printers, configure your OS default printer and enable \"Auto-print receipt\" in the options. Direct ESC\/POS printing is planned for Pro.<\/p><\/dd>\n No. All data stays in your WordPress database. The only optional external call is the EAN product lookup (Open Food Facts API), which is disabled by default.<\/p><\/dd>\n Yes. Each terminal has its own URL. Open it on as many devices as you like \u2014 no terminal limit.<\/p><\/dd>\n The terminal is installable as a PWA and caches its interface for fast loading. Cart data persists across page reloads. Full offline mode with transaction queuing and sync is a Pro feature.<\/p><\/dd>\n Yes. Open the terminal URL in Chrome or Safari on any iPad or Android tablet. You can install it as a PWA for a native app experience \u2014 fullscreen, home screen icon, instant loading.<\/p><\/dd>\n Yes. Set your thermal receipt printer as the default printer in your operating system, then enable \"Auto-print receipt\" in POS Desk options. The receipt is formatted for 80mm thermal paper. For direct ESC\/POS printing without browser dialog: coming in a future update.<\/p><\/dd>\n Yes. The full POS system \u2014 unlimited terminals and products, payments, receipt printing, barcode scanning, X\/Z reports \u2014 is completely free with no time limit. Optional Pro features (staff PINs, card readers, advanced reports, customer portal, TSE compliance, \u2026) require the separate Pro add-on starting at 49 EUR\/year.<\/p><\/dd>\n Yes. All data is stored in your own WordPress database. Nothing is sent to external servers except the optional EAN product lookup, which transmits only the barcode number \u2014 no personal data.<\/p><\/dd>\n Vollstart POS Desk is built by the team behind Event Tickets with Ticket Scanner and Vollstart Repair Desk \u2014 WordPress plugins trusted by thousands of users. We build tools we use ourselves, every day.<\/p><\/dd>\n Yes. You can import products via CSV (semicolon-separated) with name, price, SKU, EAN, category, and more.<\/p><\/dd>\n\n<\/dl>\n\n\n\n
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Third-Party Services<\/h4>\n\n
Open Food Facts (EAN product lookup)<\/h4>\n\n
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Stripe (Pro add-on only)<\/h4>\n\n
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Stripe Terminal (Pro add-on only)<\/h4>\n\n
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SumUp (Pro add-on only)<\/h4>\n\n
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Vollstart Wallet (optional, free)<\/h4>\n\n
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Third-Party Libraries<\/h4>\n\n
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\/wp-content\/plugins\/<\/code> or install via the WordPress plugin search.<\/li>\n\n
Do I need WooCommerce?<\/h3><\/dt>\n
Who can access the terminal?<\/h3><\/dt>\n
manage_options<\/code> capability (administrators). The terminal URL uses an auth token \u2014 staff opens the link on a tablet and logs in with their WordPress account. With the Pro add-on, staff can log in with a personal PIN instead.<\/p><\/dd>\nWhat printers are supported?<\/h3><\/dt>\n
Is my data stored externally?<\/h3><\/dt>\n
Can I use it on multiple devices?<\/h3><\/dt>\n
Does it work offline?<\/h3><\/dt>\n
Does it work on an iPad or Android tablet?<\/h3><\/dt>\n
Does it work with thermal receipt printers?<\/h3><\/dt>\n
Is this a free POS plugin?<\/h3><\/dt>\n
Is it GDPR compliant?<\/h3><\/dt>\n
Who builds this?<\/h3><\/dt>\n
Can I import existing products?<\/h3><\/dt>\n
1.0.1 \u2014 2026-05-14<\/h4>\n\n
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\/wp-json\/vollstart-pos-desk\/v1\/wallet\/receipt\/{number}<\/code>) now includes the transaction id (transaction_id<\/code>), so the Vollstart Wallet can render the merchant receipt QR (TXR|<id><\/code>) for returns\/lookup independent of the on-receipt QR print option.<\/li>\nfreeLimits<\/code> \/ currentCounts<\/code> boot-data exposed to JS is gone, along with every \"Upgrade to Premium\" CTA in the admin UI (terminal counter button, product counter badge, action-sheet cap tooltip, Staff and Analytics tab teaser cards).<\/li>\ngetTemplateSource<\/code>, saveTemplate<\/code>, resetTemplate<\/code>) and the CodeMirror enqueue from the free plugin to the Pro add-on. Free now exposes vollstart_pos_template_render<\/code> filter and vollstart_pos_admin_enqueue_extras<\/code> action \u2014 Pro hooks them.<\/li>\nVollstartPOS::sanitizePostArray()<\/code> helper sanitizes $_POST<\/code> at every AJAX entry point (wp_unslash + sanitize_text_field, sanitize_textarea_field for declared textarea fields) before reaching manager methods. 25 callsites across 11 manager files now route through the helper.<\/li>\ndb.php<\/code> (CREATE TABLE, ALTER TABLE ADD COLUMN, ALTER TABLE DROP INDEX) use %i<\/code> identifier placeholders in $wpdb->prepare()<\/code> (WordPress 6.2+). Internal identifier-validator + column-def-validator regex helpers gate every iteration.<\/li>\n1.0.0<\/h4>\n\n
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