Guias
Os guias traduzidos aparecem em português; os demais estão em inglês.
Gerador de QR code sem expiração: como criar códigos que duram para sempre
Por que alguns QR Codes expiram, por que os nossos fisicamente não podem, e como criar um de graça em 30 segundos.
The Best qr-code-generator.com Alternative (That Won't Disable Your Codes)
A fair comparison for people burned by trial-expiry paywalls, with receipts.
Por que meu QR Code parou de funcionar? (E como consertar)
As 5 razões reais pelas quais QR Codes impressos morrem — e como garantir que isso nunca mais aconteça.
How to Get a Free QR Code Without a Subscription
What "free" actually means at most QR services, and how to get one that is genuinely free.
Como fazer um QR Code grátis com seu logo (sem marca d’água)
Por que um logo não quebra o código, as regras de tamanho que o mantêm escaneável e como fazer de graça no seu navegador.
WiFi QR Code: Let Guests Join Your Network With One Scan
The WIFI: format, iPhone/Android support, and printing tips for cafés, rentals and offices.
vCard QR Code: Put Your Contact Card in One Scan
A free static vCard code for business cards — and why it beats digital-business-card subscriptions.
Can You Edit a QR Code After Printing?
Static vs dynamic explained, how to tell which you printed, and the pricing traps to check before you commit.
QR Code for a Restaurant Menu: Free, Printable, and Editable
Static vs dynamic for menus, print placement that gets scanned, and how to never reprint in a panic.
QR Code EPS Download: Vector Files Your Print Shop Will Accept
Why printers ask for EPS, how it compares to SVG and PDF, and how to export one free in 30 seconds.
A Free QR Code API You Can Call in One Line
Render static codes with one GET request, manage dynamic codes and pull scan stats programmatically.
GS1 QR Codes and Sunrise 2027: A Practical Guide for Product Brands
How GS1 Digital Link QR codes work alongside EAN/UPC barcodes, and what to print on packaging before 2027.
HonestQR vs qr-code-generator.com: An Honest Comparison
A dated, sourced comparison of pricing models, code longevity, exports and API — including where they beat us.
QR code pixel art: texto e ícones retrô dentro de um código escaneável
Como o meio-tom desenha um coração, um foguete ou uma palavra dentro do próprio código — verificado por máquina, grátis e sem marca d’água.
The Design Principles of Pixel Art QR Codes
Module anatomy, center sampling, the 30% damage budget, version-as-resolution and color rules — a deep dive with decode-verified samples.
How to Put a Picture Inside a QR Code (3 Ways That Actually Scan)
Center logo vs halftone pixel art vs AI-generated art — the scannability trade-offs of each, before you print.
Are Artistic QR Codes Scannable? The Science Behind Codes That Look Like Art
Error correction, module-center sampling, and the untouchable function patterns — plus the design rules that keep art codes reliable.
QR Codes estáticos vs. dinâmicos: um guia de decisão para quem vai imprimir
A única diferença técnica, recomendações por cenário e as armadilhas de preço para checar antes de escolher um provedor.
QR Code Minimum Size: The Scan-Distance Chart Every Print Job Needs
The 10:1 rule, a size chart from business cards to billboards, and how data density changes the math.
vCard QR Code vs. Dynamic Business-Card Code: Which Should Go on Your Card?
Offline static vCards vs. editable hosted contact pages — and why digital-business-card subscriptions are usually overkill.
QR Code Error Correction Levels (L, M, Q, H) Explained
How much damage each level survives, when a higher level makes scanning worse, and which to pick for logos and print materials.
Add a Free QR Code Widget to Your Website in 2 Lines
A two-line snippet that embeds a full QR generator: auto height, auto language, no API key, no watermark.
How to Track QR Code Scans (Free Analytics, No Per-Scan Fees)
How scan tracking really works, what the numbers mean, and how to get it without per-scan pricing.