Free tool
Free QR code generator with your logo and colours
Make modern, branded QR codes for links, Wi-Fi, UPI payments, WhatsApp, contacts, events and more. Style every dot, add your logo and download PNG, JPG or SVG. No sign-up, and nothing you enter leaves your browser.
- 11 content types
- 7 dot styles
- Logo and frame
- PNG, JPG and SVG
- Nothing uploaded
What should the code open?
Any web address. https:// is added if you leave it out.
Design
More options
Higher levels survive scratches and logos, but make the code denser. A logo always uses the highest.
What is Criza QR Studio?
Criza QR Studio is a free QR code generator by Criza Labs that runs entirely in your browser. It makes static QR codes for 11 kinds of content, from website links and Wi-Fi logins to UPI payment requests and contact cards, with your own colours, dot style, eye style, logo and caption frame. The code holds your content directly, with no redirect through our servers, so it has no scan limit and we set no expiry.
How to make a QR code
- Choose what the code should open, such as a website, Wi-Fi or a UPI payment.
- Fill in the details. The code updates as you type.
- Pick a quick style, or set the dots, corner eyes, colours, logo and frame yourself.
- Scan the preview with your phone to check it opens the right thing.
- Download PNG or JPG for print and social media, or SVG for any size.
Ideas for using it
- A Wi-Fi code at your cafe, clinic or office reception
- A UPI payment code at the counter, on bills and on delivery slips
- A contact card code on visiting cards and email signatures
- Menus, catalogues and price lists that open your website
- Event posters that add the date to the phone's calendar
- Packaging that opens setup videos, manuals or reorder pages
Frequently asked questions
Is this QR code generator really free?
Yes. There is no sign-up, watermark or limit, and you may use the codes on printed and commercial material. Criza Labs makes it free as a useful tool for businesses.
Do these QR codes expire or stop working?
We set no expiry. They are static codes, so your content is stored in the pattern itself and does not pass through our servers. A code keeps working as long as what it points to does, such as your website or UPI ID.
Can I change where the code points after printing it?
Not with a static code, because the content is in the pattern. If you may need to change it later, point the code at a page on your own website and update that page instead.
Will a logo stop the code from scanning?
Not when it is used carefully. Adding a logo switches on the highest error correction, which can rebuild about 30% of a damaged code, and the tool keeps the logo within that limit. We test every style with the largest logo allowed, but always scan your own code before printing.
Which colours scan best?
A dark code on a light background, with strong contrast. Light codes on dark backgrounds and pale colours often fail, and the tool warns you about both. Gradients work when both colours are dark.
What size should I print a QR code?
A common rule of thumb is to make the code about one tenth of the scanning distance, and at least 2 cm across. Keep the white border around it, and test a printed sample from where people will stand.
Should I download PNG, JPG or SVG?
SVG stays sharp at any size and suits designers and print shops. PNG suits most uses and keeps a transparent background if you chose one. JPG is the most widely accepted file for social media and messaging.
Does a UPI QR code work with every UPI app?
It uses the standard UPI payment link, which apps such as Google Pay, PhonePe and Paytm read. The payer always sees your name and the amount before confirming. Make a small test payment to yourself before you display it.
Does Criza Labs see what I put in the code?
No. The code is made in your browser. What you type and the logo you add are not sent to us or stored, and they are not put in the page address.
Scan to find Criza Labs
Every code below was made with this generator, each in its platform's own theme and a different style you can recreate above. Point your phone camera at one to follow us, message us or download our free billing app.
Criza Labs
Websites, apps and AI automation, from rough idea to live product. Scan to open our site, or talk to us about your project.
criza.dev
CrizaVoise, our free billing app
Free, open-source billing software for small businesses. GST-ready invoices, thermal receipts and stock, fully offline on Windows, Linux and macOS.
voise.criza.dev
Select any code to see it full screen, zoom in and step through them all.