Free QR code guides, tutorials and best practices from QR StarCode: how QR codes work, how to make Wi-Fi and vCard codes, error-correction levels, scan safety, DuitNow payment codes, branded design, printing rules and small-business marketing playbooks.
A plain-English guide to what a QR code is: its history, how the symbol is built, why error correction keeps damaged codes readable, and where QR codes are used.
2026-10-13 · 2 min readLearn how a Wi-Fi QR code works, what data it stores, how to generate one for guests and cafes, and the security rules to follow when you share your network.
2026-10-13 · 2 min readA vCard QR code saves your full contact details in one scan. Learn which fields to include, where to use it on cards, badges and signatures, and how to make one free.
2026-10-13 · 2 min readUnderstand QR error correction levels L, M, Q and H: how the redundancy works, how each level changes capacity, and which one to pick for screens, print and logos.
2026-10-13 · 2 min readStatic QR codes store data directly and never expire, while dynamic codes rely on a paid redirect server. Compare lifespan, privacy and cost to choose the right type.
2026-10-13 · 2 min readQuishing hides malicious links behind printed QR codes. Learn the common scams, a checklist to run before you scan, and what to do if a code looks suspicious.
2026-10-13 · 2 min readDuitNow QR is the shared Malaysian payment standard. Learn how the EMV QR format stores merchant details and how a business obtains, builds and prints a payment code.
2026-10-13 · 2 min readDesign branded QR codes that still scan: logo size and placement rules, contrast requirements, ChromaCode image blending, and a testing checklist before print.
2026-10-13 · 2 min readMost QR codes fail at the printing stage. Get practical rules for minimum size, scan distance, contrast, the four-module quiet zone, materials and test scans.
2026-10-13 · 2 min readPractical QR code marketing for small businesses: digital menus, review collection, social growth, poster copy that gets scanned, and free result tracking.
2026-10-13 · 2 min read