QR Code Generator

Create private, customizable QR codes for websites, text, Wi-Fi, contact cards, email, phone numbers, locations, events, WhatsApp, app links, and more. Generate and download them in your browser with no sign-up.

A QR Code Generator turns information into a two-dimensional code that a compatible camera or scanning app can read. This browser-based generator creates codes for websites, plain text, Wi-Fi settings, email, phone numbers, SMS, contact cards, locations, calendar events, WhatsApp chats, app links, and custom content. Your entered data is formatted and encoded locally wherever possible; no account is required and the generator does not need to fetch the destination website.

Use a static QR code when the encoded content itself is the thing you want to share. A website QR code contains the address you enter, so the code does not automatically change if that page moves. Check important destinations before printing, and remember that anyone who can scan a code can read its payload.

Choose the content type that matches what you want a scanner to open: Website, Wi-Fi, Contact, Location, Event, WhatsApp, App link, or another format.
Enter only the information that should be encoded. For a website, use an http:// or https:// URL. For a location, enter latitude and longitude within their valid ranges. For an event, check the start and end times.
Review the generated preview and the format summary. Keep the content short enough to produce a code with comfortable module spacing, especially for small printed labels.
Use the appearance controls to choose the code colour, background, output size, margin, and error-correction level. Test the finished design with a real phone before distributing it.
Download PNG for ordinary documents, SVG for scalable artwork, or use the print/PDF action for a paper proof. Keep a copy of the original destination or text separately so you can audit what was encoded.

How QR code generation works

The generator first builds a structured payload. For example, a Wi-Fi code uses the recognised WIFI: format, a contact code uses a vCard record, a location uses a geo: link, and a website uses the URL itself. Special characters are escaped where the format requires it, so a semicolon in a Wi-Fi network name is not mistaken for a field separator.

The QR encoder converts that payload into square modules, adds the selected quiet-zone margin, and applies one of four error-correction levels: Low (L), Medium (M), Quartile (Q), or High (H). More correction adds redundancy that can help a partly damaged code remain readable, but it also uses more modules and can make a dense payload harder to scan. Higher correction is not a substitute for contrast, adequate size, or a clear margin.

There is no single useful “QR complexity score” independent of the chosen encoding options. Payload length, character mode, error correction, and QR version all affect density. A shorter payload is usually the most reliable optimisation.

Using the generated result

Preview before you publish

The preview shows the actual QR image produced from your selected payload rather than a decorative placeholder. Check the format label, readability warning, colours, and margin. For a URL, read the complete destination before scanning. For a Wi-Fi or contact code, avoid displaying the result where people who should not receive the information can photograph it. DENSO WAVE's QR Code documentation describes why damaged or obscured modules can sometimes be recovered, but practical scan testing is still important.

Everyday Life tips and best practices

Use a dark foreground and light background with strong contrast. Do not rely on colour alone to communicate what the code does.
Keep the four-module quiet zone around the code clear. Do not crop it tightly or place text directly over the modules.
Print at a size that leaves scanners enough detail. A code with a long URL or contact card needs more physical space than a short word.
Use High error correction only when the extra resilience is useful; it cannot rescue a code that is too small, low contrast, distorted, or missing its margin.
Scan a printed proof from the distance and angle your audience will use. Test more than one phone if the code is important.
For a website destination, consider using a stable URL that you control rather than encoding a long temporary link.

There are four standard QR error-correction levels: L, M, Q, and H.
Latitude is limited to −90 through 90 degrees and longitude to −180 through 180 degrees.
PNG is pixel-based and convenient for screens; SVG is vector-based and usually better for resizing print artwork.
A QR code is a container for data, not a guarantee that the destination is available, trustworthy, or permanent.

Common mistakes to avoid

Encoding a Wi-Fi password or private contact data and then posting the finished image publicly.
Using a low-contrast colour combination, a transparent background, or a decorative treatment that hides finder patterns.
Removing the quiet zone, stretching the image, or printing a dense code too small to resolve.
Assuming a static website QR code can be edited after printing. Changing the destination requires a new code unless a separate redirect service is used.
Trusting a QR destination without reading the displayed URL first. Scanning can open a browser, messaging app, map, or external application.

QR codes are a data-sharing format, not a security boundary. Do not encode credentials, payment secrets, or personal information unless you understand who can copy and scan the result. App and deep-link codes should use only URI schemes you trust. Official QR Code documentation provides background on the format, but it does not verify the safety of an individual destination. For adjacent browser tools, compare the Random Number Calculator, Storage Calculator, or Date Difference Calculator where those calculations are relevant. Always verify a consequential destination or data-sharing decision independently.