AQAeroQR.online
FREE ONLINE TOOL

QR Code & Barcode Generator

Create a clean QR code in seconds, customize the look, preview it instantly and download it as a PNG. No account is required for the basic generator.

1

Add your content

Choose a type above and enter the information to encode.

2

Design your QR code optional

Use your brand colors, size, logo and a simple call-to-action frame.

PNG/JPG/WebP Β· optional
Tip: keep strong contrast between the QR color and its background so phone cameras can scan it reliably.
LEARN BEFORE YOU PRINT

QR guides for real-world use

Useful tutorials for payments, WiFi, business use, print production, safety and scan testing.

View all 10 guides β†’
01

Choose the correct QR type

Use Website for a normal link, WiFi for network access, UPI for payment details, VCard for contact saving, and WhatsApp or Email when you want the phone to open a communication action directly.

02

Keep the design scannable

Dark modules on a light background are the safest. Keep a blank quiet zone around the QR and avoid covering too much of the pattern with a logo or decorative frame.

03

Test the actual output

Scan the downloaded file and, for print work, scan a proof at the real physical size. Confirm the destination or payment detailsβ€”not just whether the camera recognizes the code.

QR SAFETY TIPS

Check what the scanner will actually receive

QR codes can hide a long destination behind a small pattern. Before sharing one publicly, verify the domain, phone number, payment ID or network credentials and use a clear label that matches the action.

  • Use recognizable website domains.
  • Never encode passwords, PINs or OTPs that should remain secret.
  • Verify UPI payee information before printing.
  • Replace old WiFi codes after password changes.
  • Inspect public payment QR displays for physical tampering.
HELP

Frequently asked questions

Do I need an account to generate a QR code?

No. The basic QR and barcode generator on the homepage works without an account. Login is used for features such as saved customer data, company profile and document history.

Which QR types can I create?

You can create QR codes for website links, plain text, WiFi access, UPI payment details, vCards, WhatsApp messages and email. Code128 barcode creation is also available.

Can I use my logo inside the QR code?

Yes. Upload a small logo and AeroQR places it in the center of the preview and exported PNG. Always test the final code after adding a logo.

What size should I use for printing?

There is no single size for every use. A code on a business card can be smaller than one on a poster. Generate at a larger size for print work, maintain white space around it, and test from the expected scan distance.

Does AeroQR upload the text I enter?

The basic homepage QR rendering is handled in the browser. Some separate tools may use server-side features when you choose to save data or use a connected API; see the Privacy Policy for details.

Why is my QR code difficult to scan?

Low contrast, a very small printed size, excessive logo coverage, a damaged code or insufficient blank margin can reduce scan reliability. Return to a dark-on-light design and test again.

Does a static QR code expire?

The QR pattern itself does not have a built-in expiry date. A website QR can stop being useful if the encoded page is removed, the domain changes or the destination is no longer available.

Can I change a static QR after printing?

No. The data is encoded directly into the printed pattern. If you need a different URL or contact detail, create and print a new QR unless the old QR points to a stable page that you control and can update.

Is SVG better than PNG for printing?

SVG is useful for scalable artwork because it stays sharp at different sizes. A large PNG can also print well. Avoid taking a tiny raster preview and enlarging it heavily.

Can I put a QR code on a business card?

Yes. Use a short URL or vCard, preserve the quiet zone, print a proof at actual card size and scan the final card before producing a large quantity.

How do I know a UPI payment was successful?

A scannable QR is not payment confirmation. Check the transaction in your own bank or payment application before treating the order or invoice as paid.

Should I use a separate guest WiFi network?

For shops and offices, a guest network is generally more appropriate for visitors than sharing the same credentials used by internal business devices. Replace the QR whenever the guest password changes.

AEROQR.ONLINE

Built as a useful toolbox, not an ad wall.

Use the generator, learn how each QR type works, then move to invoices, quotations, ID cards, image tools and PDF tools when needed.