What is a QR code?
By Mark Boreland ·
In short
- A QR code is a square barcode that holds a URL, so pointing a phone camera at it opens the link.
- It bridges the physical and digital, so a code on a poster, a slide, or a printed handout opens your hosted file.
- NudgeHost generates one on every link, on the free plan, with nothing to set up.
A QR code is a two-dimensional barcode that encodes text, almost always a URL. A phone camera reads the pattern and offers to open the link, which removes the need to type an address by hand. That small convenience is why QR codes turn up on restaurant tables, conference badges, product packaging, and the last slide of a talk. Anywhere a link needs to jump from something physical to someone's phone, a QR code is the bridge.
For shared files this matters more than it first appears. A printed wedding invitation can carry a code that opens the details page you set up when you host a wedding website for free, and a poster can point to a PDF you PDF link generator without anyone squinting at a long URL. NudgeHost generates a QR code for every link automatically, and it does so on the free plan, where competitors typically gate this behind a paid tier. There is nothing to generate separately and no third-party tool to trust with your URL.
Because the code simply points at your link, it inherits everything the link does. Update the file and the code keeps working, since the URL has not changed. Set the link to expire and the code expires with it. Hosting and the QR code are free, and our pricing only enters the picture for things like custom domains. A QR code is the most direct way to hand someone a file without handing them a keyboard.
Related terms
Frequently asked questions
Do I have to pay for the QR code?
No. NudgeHost includes a QR code on every link on the free plan. Many competitors only offer this on paid tiers.
Does the QR code still work if I update the file?
Yes. The code points at your link, and the link does not change when you swap the file, so the code keeps resolving to the latest version.
Can I print the QR code on a poster or invitation?
Yes. That is a common use. Download the code and place it anywhere physical, and a phone camera will open your hosted file.
Related tools
Other things you can do on NudgeHost.
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