eQ - electronic Quittung
The open standard for digital receipts
Truly open. Privacy-first. Forgery-proof. No licensing fees.
Click on any element to learn more
The Problem with Today's Receipts
Billions of paper receipts printed annually - environmental waste.
30+ proprietary solutions with incompatible formats.
Data trapped in silos - no interoperability between systems.
Existing "standards" controlled by commercial interests.
eQ: One Open Format for Everyone
A single, open standard that works with any POS system, any consumer app, in any country - and belongs to no one (and everyone).
{
"eq_version": "1.0.0",
"receipt": {
"id": "550e8400-e29b-41d4-a716-446655440000",
"issued_at": "2026-01-31T14:30:00+01:00",
"timezone": "Europe/Zurich",
"receipt_type": "sale",
"currency": "CHF",
"language": "de-CH",
"merchant": {
"name": "Bio Market",
"tax_id": "CHE-123.456.789 MWST",
"address": {
"street": "Bahnhofstrasse 1",
"postal_code": "8001",
"city": "Zürich", "country": "CH"
},
"contact": { "phone": "+41 44 123 45 67" }
},
"location": {
"name": "Zürich HB",
"location_id": "LOC-001"
},
"transaction": {
"terminal_id": "POS-003",
"operator_id": "Maria S.",
"payments": [{ "method": "card", "amount": 12.50 }]
},
"items": [{
"description": "Bio Vollmilch 1L", "quantity": 2,
"unit_price": 2.90, "total_price": 5.80,
"tax_rate": 2.6, "identifiers": { "gtin": "7612345678901" }
}],
"totals": { "subtotal": 12.10, "tax_total": 0.42, "grand_total": 12.50 }
},
"integrity": {
"algorithm": "SHA-256",
"hash": "a9f8b7c6d5e4f3a2b1c0d9e8f7..."
}
}Key Features
Built on principles that put openness, privacy, and security first.
Truly Open
No patents, no licensing fees. Free to implement by anyone.
Privacy by Design
No customer data in receipts. Your privacy is protected by default.
Forgery-Proof
Cryptographic signatures verify authenticity and integrity.
Decentralized
Data stays with merchants. No central database of purchases.
International
Multi-currency, multi-language support built in.
Offline-Mode
QR codes work without internet connection.
Use Cases
From paperless receipts to automatic bookkeeping - eQ enables it all.
Paperless Receipts
No more paper clutter. All receipts in one app.
Automatic Bookkeeping
Direct import to accounting software with full details.
Warranty Tracking
Never lose a warranty again. Automatic tracking.
Health Apps
Track nutrition from grocery purchases automatically.
Product Recalls
Get notified if you bought a recalled product.
Expense Reports
Auto-categorized business expenses in minutes.
Join Us in Shaping the Future
We are actively seeking feedback on the specification, early adopter partners (POS vendors, apps), and contributors to reference implementations.