What types of content can I encode in a QR code?

URLs, plain text, Wi-Fi credentials (auto-join), vCard contacts, email addresses, phone numbers, and SMS messages. The tool formats the data correctly for each type.

Can I customise the colour of my QR code?

Yes. Set foreground and background colours using the colour pickers. Ensure enough contrast (dark on light) so scanners can read the code reliably.

What error correction level should I use?

Level M (15% recovery) works for most digital uses. Use Level H (30%) if the QR will be printed on merchandise where it might get partially covered or scratched.

What sizes are available for download?

Generate QR codes from 128×128 up to 2048×2048 pixels in PNG or SVG format. SVG scales infinitely, making it ideal for print materials.

Can someone track who scans my QR code?

Not through this tool. The QR simply encodes the data you provide. If you link to a URL, the destination website's own analytics will track visits, but the QR itself has no tracking.

Is there a character limit for QR codes?

Technically QR codes can hold up to 4,296 alphanumeric characters. However, shorter content (under 300 characters) produces cleaner, easier-to-scan codes.

Can I add a logo in the centre of the QR code?

Yes. Upload a small logo image and the tool overlays it on the QR code. Higher error correction (Level H) ensures the code remains scannable despite the logo covering some modules.

Do generated QR codes expire?

No. A QR code is simply an image encoding your data. It works forever as long as the encoded content (like a URL) remains valid.

QR Code Generator

Generate Live

Generate QR codes for URLs, text, Wi-Fi credentials and more.

About this tool

QR Code Generator — Generate QR codes for URLs, text, Wi-Fi credentials and more. Free, fast and private. Runs entirely in your browser at Quick Calci Tools.

Examples

Common scenarios for the QR Code Generator.

Wi-Fi sharing card

ssid: GuestNet
password: welcome2026
encryption: WPA

Scannable QR that auto-joins the network on most phones.

URL → 512×512 PNG

text: https://tools.quickcalci.com
size: 512

512×512 PNG ready to download.

Who uses the QR Code Generator?

Common scenarios and audiences for this tool.

Restaurant owners

Generate QR codes for digital menus that customers scan at their table — no app download required.

Event organisers

Create QR codes for tickets, venue maps, or Wi-Fi credentials to print on badges and signage.

Small business marketing

Print QR codes on business cards, flyers, and product packaging linking to your website or special offers.

Teachers & educators

Share assignment links, classroom Wi-Fi, or feedback forms as QR codes on worksheets and classroom posters.

Real estate agents

Place QR codes on 'For Sale' signs linking to virtual tours, floor plans, or contact forms.

Frequently asked questions

Everything you need to know about the QR Code Generator.