A QR code maker that tests the code before you print it
The usual way to find out a QR code does not scan is after a thousand flyers have been printed. QRCoder is a QR code maker that checks first. As soon as you type, it reads the code back three ways: at full size, at a small size, and blurred and faded the way a hurried phone photo sees it. Each code is scored for readability from 0 to 100, and when something is wrong it names the reason, such as ink and paper colors that are too similar, ink lighter than its background, or a logo that covers too much.
Codes are made on your PC. A static QR code holds its content in the pattern itself, so there is no redirect service in between and nothing to expire or stop working later.
When the code looks right, click it to copy, drag it into an email, a document or a folder, or use Save image.
How to make a QR code
SVG is the right choice for signs and print shops, since it scales to any size without blurring. For screens and documents, a 1000-pixel PNG is usually plenty.
- Under Create, pick the kind of code: Text (for links and any text), Wi-Fi, Contact, Email, SMS or Phone.
- Fill in the fields. Typing just a domain such as mysite.org turns it into a working link for you.
- Open Style to choose modules (Square, Rounded or Dots), Corner eyes (Square, Rounded or Circle), colors, and optionally Add a logo….
- Watch the scan check, and fix whatever it flags.
- Pick a Format (PNG, JPG, BMP or SVG) and a Size, then Save image.
Wi-Fi QR code generator for guests
Writing a network password on a card invites typos. With a Wi-Fi code, visitors join by pointing their phone camera at it. Enter the Network name and Password, choose a Security setting of WPA, WPA2 or WPA3, WEP (older routers) or None, open network, and tick The network is hidden if your router does not broadcast its name. Print it for a guest room, a meeting room or a café counter.
Contact codes work the same way for business cards and name badges: name, number, email, company, role, website and address land in the scanner's address book with one scan.
QR code with a logo that still scans
A logo in the middle of a QR code physically blocks part of the pattern; the code survives only because of error correction, the spare data every QR code carries. QRCoder offers four levels, Low, Medium, Quartile and High, and switches to High while a logo is in place. Use Logo size to find the largest mark the scan check is still happy with.
Bulk QR code generator and label sheets
For asset tags, product labels, raffle tickets or event badges, open Batch. Type or paste one code per line, or use Import CSV… for a spreadsheet export, and choose which Column becomes the code and which becomes its Caption. Up to 2000 rows are used.
The batch becomes a printable PDF of labels, Letter or A4 paper, from 6 large labels a page to 40 small ones, or saves each code as a separate PNG in a folder.









