Can I change the URL after printing the code?

Not with a static QR — the destination is encoded in the pattern itself, which is also why it cannot be silently redirected later. If you need to change it, print a new code; a redirect service is how a working sign becomes an unknown destination.

Which error-correction level should I choose?

Medium by default. Go higher if the code will be printed small, placed on a curved surface, or have a logo dropped over it — higher levels tolerate more damage at the cost of a denser pattern.

Why will my Wi-Fi QR not work on some phones?

Network type, an escaped password with spaces, and a hidden SSID all break silently. Recheck the exact casing of the password and test the scan before relying on it.

How large can I print a QR code?

As large as you like from SVG, since it is vector. As a rule of thumb, the scan distance can be roughly ten times the code's side length — a 10 cm code is fine from a metre away.

QR Code Generator

URL, text, Wi-Fi or contact → QR (PNG/SVG).

Text or URL to encodeEverything stays on your device — the code is drawn locally.

Error correctionOutput formatModule size: 512 px512Edge length of the exported PNG/SVG.Quiet zone: 2 modules2Blank border scanners need to see.Foreground

Background

Keep contrast high — a light-on-light code looks fine on screen but fails to scan. Minimum recommended quiet zone is 2 modules.

Type the content first.

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About QR Code Generator

Generate a QR code from a link, plain text, Wi-Fi credentials or a contact, and download it as PNG for the screen or SVG for print. The code is built in your browser from the data you type — there is no shortener in the middle and no service that can change or switch off what you have already printed.

A link on a poster, a table tent or a Wi-Fi guest card that has to work the first time.

How to use QR Code Generator in 3 steps

Choose the content type and enter the URL, text, network name and password, or contact details.
Pick the Output format — PNG to drop into a document, SVG for large-format print.
Download the code and test it on a second phone before you print a hundred copies.

What you get with QR Code Generator

Static codes: nothing routes through a service you might later lose
SVG output scales to a poster without softening, PNG suits slides and web pages
Error-correction level controls how much damage the code can survive
Printable straight onto a PDF page with Create QR Code PDF
Runs in your browser — what you enter is never uploaded
Free to use, with no signup and no account
No watermark or logo added to your output
Works on desktop and mobile, no install

QR Code Generator: questions

Can I change the URL after printing the code?: Not with a static QR — the destination is encoded in the pattern itself, which is also why it cannot be silently redirected later. If you need to change it, print a new code; a redirect service is how a working sign becomes an unknown destination.
Which error-correction level should I choose?: Medium by default. Go higher if the code will be printed small, placed on a curved surface, or have a logo dropped over it — higher levels tolerate more damage at the cost of a denser pattern.
Why will my Wi-Fi QR not work on some phones?: Network type, an escaped password with spaces, and a hidden SSID all break silently. Recheck the exact casing of the password and test the scan before relying on it.
How large can I print a QR code?: As large as you like from SVG, since it is vector. As a rule of thumb, the scan distance can be roughly ten times the code's side length — a 10 cm code is fine from a metre away.