Next-Gen QR
Generation & Parsing
Generate, parse, and validate QR payloads with support for Wi-Fi, URL, contact, social media, utility, and EMVCo payment QR standards. EMV QR Hub provides professional QR generation, QR payload decoding, EMVCo Academy learning resources, TLV formatting, CRC validation, and interoperability tools for developers, fintech platforms, merchants, banks, and digital payment ecosystems.
Standard QR
Create HD codes for WiFi, Contacts, and Social Media with deep aesthetic customization.
EMVCo QR
Construct complex merchant-presented mode QR with automated TLV calculations.
QR Decoder
Extract raw payloads, validate CRC16 integrity, and inspect structural payment tags.
Understanding EMV QR payments
EMV QR is a way for wallets and merchant systems to share a payment instruction as a scannable string. Under Merchant-Presented Mode, that string is a Tag-Length-Value payload with a CRC integrity check — not a photograph of a logo.
EMV QR Hub is an independent browser toolkit for generating, decoding, and validating those payloads, plus an Academy of technical guides. Processing stays on your device; we are not affiliated with or endorsed by EMVCo.
Use the studios when you need a working QR or a tag dump. Use the Academy when you need to understand TLV layout, CRC failures, static versus dynamic initiation, or how national schemes sit on top of the same grammar.
Understanding TLV structure in an EMV QR payload
EMVCo MPM payloads are not JSON. They are a tight Tag-Length-Value stream. If you mis-count length, every later field is garbage even when CRC was computed on that garbage.
Tag, length, and value are the only primitives: two-digit tag, two-digit length, then exactly that many characters of value — which may itself be a nested TLV list inside Merchant Account Information.
A concrete example is Tag 54 for amount: the characters 5406125.00 mean tag 54, length 06, value 125.00. Generate a billed QR in the EMV studio, then open Decode to confirm the same Tag 54 and a valid CRC.
Platform Integrity
Adhering to global ISO and EMVCo standards for universal scan reliability.
Privacy First (Offline)
All QR logic is processed locally in your browser. Your sensitive payment data never touches our servers.
Advanced TLV Logic
Automated Tag-Length-Value formatting ensures your merchant strings are 100% standard compliant.
Integrity Validation
Every string is verified with a Cyclic Redundancy Check (CRC16) to prevent transaction data corruption.
Supported Formats
Universal compatibility across all scanner and banking ecosystems.
Learn EMVCo QR Technology
Explore EMVCo QR payment systems, TLV payload structures, CRC validation, QR interoperability, merchant-presented mode, and payment QR architecture through our technical learning ecosystem.
What is EMV QR?
Understand EMVCo QR payment systems, merchant-presented mode, consumer-presented mode, and payment workflows.
TLV Format Explained
Learn how Tag-Length-Value structures are used inside EMV QR payloads.
CRC Validation
Discover how CRC16 integrity checks help protect QR payment payloads.
Static vs Dynamic QR
How Tag 01 (11 vs 12) pairs with amounts, and when stickers versus billed QR apply.
Merchant Presented Mode
Learn how merchant-generated EMVCo payment QR systems work across banks and wallets.
Generate a Merchant QR
Step-by-step guide to building EMVCo MPM payloads with currency, amount, and CRC checks.
Decode a Payment QR
Inspect TLV tags and validate CRC integrity before trusting a merchant QR in production.
QR Interoperability
How wallets and national schemes share EMVCo grammar—and where acceptance still diverges.
National QR Schemes
PromptPay, SGQR, Bharat QR, and other local overlays built on EMVCo MPM.
ISO 4217 in Tag 53
Why currency must be numeric (356 for INR) and how alphabetic codes break wallets.
Common EMV QR Errors
Fix CRC failures, POI conflicts, missing merchant accounts, and TLV length mismatches.
Explore EMVCo Academy
Access all technical guides, QR standards, payload structures, validation tutorials, and developer learning resources.
Mastering EMVCo QR & Payment Technology
What is EMVCo QR Hub?
EMV QR Hub is an independent QR workshop: Standard QR for Wi-Fi, contacts and URLs, an EMVCo merchant-presented generator with TLV and CRC-16, and a decoder that inspects those payloads in your browser. We do not process payments or store scanned merchant data. The Academy is our documentation for the same tools — not an official EMVCo publication.Explore our EMVCo Academy to learn about EMV QR payload structures, TLV formatting, CRC validation, payment QR architecture, and interoperability.
EMVCo Payment QR Support
Merchant QR on this site follows EMVCo Merchant-Presented Mode conventions: numeric ISO 4217 currency, point of initiation 11 or 12, and a CRC on Tag 63. For the normative specification, use emvco.com. For a payload that actually pays, use the GUID your acquirer assigned.Use our EMV QR Generator and QR Decoder to inspect payload structures, TLV tags, and CRC integrity validation.
The Standard QR studio customizes colors and logos while keeping ISO/IEC 18004 scannable modules. EMV generation is separate so payment tags are never mixed into a Wi-Fi payload. Both studios run locally on this device.
Whether you are minting a billed dynamic QR or sharing a contact card, check the decoded string before you print. Pretty QR art cannot fix a bad Tag 53 or a leftover test AID.
The Ultimate QR Tool,
Now in Your Pocket.
Generate, parse, and validate merchant QR codes instantly. Experience native Android speed with zero data tracking.
FAQ Center
Learn about TLV structures, CRC16 hashing, and generation limits.
Support Portal
Contact the team for bug reports or EMVCo integration queries.
Compliance
Read our data processing rules and platform terms of service.