Make a QR code for text, links or an image

Never. The content is encoded directly into the pattern, with no short link and no account behind it, so the code keeps working for as long as the pattern is readable.

Yes. Choose the Image tab and upload a picture. Error correction is automatically raised to level H so the code still scans with part of it covered. Keep the logo under about a quarter of the width.

Not offline. That needs a server to store the picture and hand it out when someone scans — and btools never uploads your files. The Image tab therefore puts your picture in the centre of the code while the code itself carries a link or text.

Pick 2048 px, keep the quiet zone at four modules or more, and leave the background light with a dark foreground. Square dots scan the most reliably; rounded and dotted styles are cosmetic.