Guides and answers
Practical guides on QR codes, WiFi sharing, print sizes and shrinking images, each paired with a free tool.
IMGImage CompressorHow to Reduce Image File Size Without Uploading It Anywhere
Upload form says max 1 MB? Email bounced because the photos were too big? Resize and set quality to about 80% and most photos drop by 80-90%. Here is how to do it in your browser, privately.
QRQR Code GeneratorWhat Size Should a QR Code Be When Printed?
The minimum QR code size for business cards, flyers, menus and posters, with worked examples, plus the rules for logos, colors and the quiet zone that decide whether a printed code scans.
WiWiFi QR CodeHow to Share Your WiFi With a QR Code (iPhone, Android and Printed Cards)
Stop spelling out your WiFi password. Guests can join by pointing their camera at a QR code. Here is how to show one from Android or iPhone, and how to print a guest card for a cafe, office or Airbnb.