Qrblox author

Sara

Sara writes practical, source-backed guides about QR code history, safety, design, campaigns, and business use cases.

Articles by Sara

How to Scan a QR Code from a Screenshot (2026) Scan a QR code from a screenshot on iPhone, Android, or a computer. The camera and Live Text often fail. The free Qrblox tool reads the saved image and previews the link first.
Circular QR Codes on Printable Coupons & Inserts That Still Scan How to put a circular QR (round QR code generator) on a printable freebie or coupon: size, quiet zone, contrast, and a claim URL at qrb.dev/f/{CODE} — not a tiny gray stamp.
Concert & Event Freebies: One QR, Live Count, TAKEN When Gone How givers run a concert or event freebie pack with one Qrblox claim QR, a live count, and TAKEN when the last item is gone. Works for K-pop-style photocards without trademark endorsement claims.
How to List Free Stuff Locally with a Qrblox Freebie Code Giver-side how-to: list a local freebie with a Qrblox freebie code. One QR per item opens qrb.dev/f/{CODE} in the browser. When a curb pile needs TAKEN — and when a paper note is enough.
Market & Cottage Packaging Freebies: Put the QR on the Jar or the Card Farmers-market and cottage packaging: when the Qrblox freebie QR belongs on the jar lid versus a hang card, and how a claim page at qrb.dev/f/{CODE} keeps the extra honest.
Put a Round QR on the Freebie — Open a Claim Page, Not Your Phone Number Put one round QR on a sticker or photocard so the scan opens a Qrblox claim page (qrb.dev/f/{CODE}) with live N left — not your personal number or DMs.
QR Mistakes That Kill Free Packaging (Too Small, Quiet Zone, Hops, App Walls) Four QR mistakes that kill a freebie pack: too small, no quiet zone, retargetable tracking hops, and forcing an app install just to see the claim page. What to do instead with Qrblox.
10 Types of QR and 2D Codes Explained A plain-language comparison of QR Code, Micro QR, rMQR, SQRC, FrameQR, Data Matrix, PDF417, Aztec, MaxiCode, and GS1 2D codes.
15 Creative QR Code Designs That Still Scan Creative QR design ideas that preserve contrast, quiet zones, finder patterns, error correction, and real-world scannability.
12 QR Code Mistakes That Kill Scan Rates Twelve QR campaign failures—from weak calls to action and tiny print to glare, broken links, poor mobile pages, and missing attribution.
17 Places to Put a QR Code The best physical and digital QR code placements, plus the distance, surface, dwell-time, and context checks that improve scan rates.
20 Real QR Code Campaign Examples Twenty real-world QR and 2D-code campaigns across television, packaging, retail, restaurants, events, travel, museums, fundraising, and product traceability.
21 QR Code Uses for Small Businesses Practical QR code ideas for reviews, bookings, payments, loyalty, product support, hiring, inventory, and measurable local marketing.
25 Things You Can Put in a QR Code Twenty-five useful QR code payloads, from websites and Wi-Fi to product manuals, payments, surveys, tickets, and dynamic smart pages.
7 Ways Restaurants Can Use QR Codes Beyond Menus Seven restaurant QR uses for Wi-Fi, reservations, ordering, payment, allergen details, reviews, loyalty, events, catering, and takeout reorders.
9 QR Code Scams and Warning Signs How quishing, sticker overlays, fake payment pages, login traps, prize surveys, and malicious app downloads work—and how to verify a QR code.
The History of QR Codes: From DENSO WAVE to Everyday Life The documented history of QR codes: the two-person DENSO WAVE team, Masahiro Hara, the 1994 release, open specifications, standards, camera phones, and modern uses.