Free QR Code Generator Online

QR Codes for Websites, ID Cards and Advertising

Customers commonly use QR codes to share a website, catalogue, PDF brochure, presentation, video, contact information, location or short text. A printed QR can connect an ID card, event badge, paper advertisement, product sheet or visiting card to useful digital information without printing a long URL.

For an ID card, a QR code may open an authorized staff or student verification page, company website or approved digital profile. Event badges can link to a schedule, registration record, exhibitor catalogue, sponsor presentation or product video. The destination should remain available for as long as the printed card or advertisement is in use.

WhatsApp, Phone and Emergency Contact QR Codes

The WhatsApp mode creates a link from a country-code number and an optional default message. The phone mode can create a tap-to-call number or combine an emergency-contact label with the number as readable QR text.

Encoding a contact number keeps it from being immediately visible as printed text, but a QR code is not encryption. Anyone with a compatible scanner can read or open its content. Obtain permission before encoding another person’s phone number and avoid passwords, financial data or confidential personal information.

Static QR Codes and Link Changes

This tool creates static QR codes. The encoded text or URL is fixed inside the downloaded image and cannot be edited later. If you expect the final destination to change, encode a short page or redirect URL on a domain you control, then update that page or redirect separately. Test long-term links before placing them on a large print order.

QR Size for ID Cards and Event Badges

A 150–200 pixel source may be enough for some simple ID card QR codes, while a 250–300 pixel image provides more room for a larger event badge. The generator offers 150, 200, 300, 500 and 1000 pixel PNG files. Pixel dimensions alone do not guarantee scanning: encoded data length, physical print size, contrast, printer quality, viewing distance and the phone camera all matter.

Keep an empty quiet zone around the QR code, do not crop its edges and avoid stretching it. Print one sample at the final physical size and test it with several phones before bulk printing. More data produces a denser pattern and may require a larger printed QR.

Black-and-White and Coloured QR Codes

Black modules on a white background normally provide the strongest contrast. A dark brand colour can also work if it remains clearly darker than the background. Avoid light foreground colours, busy photographs, gradients and low-contrast combinations. A transparent PNG is useful for design work, but place it over a plain light area and preserve the quiet zone for reliable scanning.

How to Make a QR Code

1. Select Text, Website URL, WhatsApp, Phone, Email, Location or Custom.
2. Enter only the information that you are authorized to share.
3. Select the PNG size, foreground colour and background option.
4. Click Generate QR Code and scan the preview.
5. Download id-card-99.com.png without a watermark.
6. Place it in the final design without distorting or cropping it.
7. Test the final printed proof before producing a batch.

Privacy and Acceptable Use

The page tool generates the QR image in the browser. The finished QR itself is openly readable by scanners, so do not encode secrets or information that should remain private. IDCard99 does not support QR codes intended for phishing, malware, impersonation, fake credentials, unlawful tracking or unauthorized access. Users are responsible for the content and destination they encode.

Frequently Asked Questions

Is this QR code generator free and watermark-free?

Yes. This QR code generator is free to use without registration. You can download your generated QR code as a PNG without a watermark.

Can I create QR codes for school and company ID cards?

Yes. Schools can use QR codes to link student ID cards to an approved school website or student information page. Companies can link employee ID cards to an official website, authorized profile or verification page. Only include information you are authorized to share.

Can I create a QR code for a website, address or location?

Yes. Select Website URL to link to a webpage, or Location to encode a Google Maps or other valid map URL. You can also use Text or Custom mode to encode an address or other readable details.

Can I create a WhatsApp QR code with a prepared message?

Yes. Enter a WhatsApp number with its country code and optionally add a prepared message. Scan the preview to confirm that the correct WhatsApp link and message open.

Can I download a transparent QR code PNG?

Yes. You can download a PNG with a transparent background. Place it on a plain, light background, preserve the empty space around the QR code and test it before printing.

Can I change the destination after printing a QR code?

This tool creates static QR codes, so the encoded content cannot be edited after download. If the QR code contains a URL on a webpage or redirect that you control, you can update that destination separately without changing the encoded URL.

Why is my printed QR code difficult to scan?

A QR code may be difficult to scan if it is printed too small, has low contrast, contains too much data, has cropped edges or lacks sufficient clear space. Test a sample at the final print size with different phones before printing ID cards or event badges in bulk.