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QR Code Generator

Create a QR Code from Any Text or URL in Seconds

QR codes bridge the physical and digital world: a menu on a table, a link on a business card, or a Wi-Fi password on a wall. Building one used to require a desktop app or a developer library. This tool turns any text or URL into a downloadable QR code with configurable error correction and colors, fully in the browser.

Choose the error correction level to match how the code will be printed and scanned. Higher levels survive damage and partial occlusion, which matters for stickers, packaging, and outdoor signage.

How to Generate a QR Code

  1. Paste the URL or text you want to encode, such as https://example.com/menu.
  2. Select an error correction level, L, M, Q, or H.
  3. Pick the module colors, for example dark #1a1a1a on white.
  4. Choose the output size in pixels, such as 1024.
  5. Download the PNG and test it with your phone camera.

Real Example: Restaurant Menu Link

A cafe prints table tents with a QR code pointing to its online menu. Using level Q error correction, the code stays scannable even when the tent is slightly creased or a drink ring lands on a corner.

InputOutput
https://example.com/menumenu-qr.png at 1024 px
WIFI:T:WPA;S:GuestNet;;wifi-qr.png scannable by phones

How Error Correction Works

QR codes store redundant data on purpose. The Reed-Solomon algorithm spreads a copy of the payload across the pattern, so a scanner can reconstruct the original message even when part of the code is unreadable. Level L adds about 7% redundancy, M about 15%, Q about 25%, and H about 30%.

More redundancy makes the code denser, which means more modules and a tighter grid at the same physical size. For a small label printed at 2 cm, choose L or M so the modules stay large enough to scan. For a poster that will be creased or exposed to weather, choose Q or H.

Color choices matter too. The scanner looks for the dark-on-light ratio, so keep the foreground noticeably darker than the background. Avoid red-on-black or light-on-white combinations, which fail on many phone cameras.

Tips for Best Results

When to Use This Tool

The same code works for plain text too, which makes it useful beyond URLs. Teams encode serial numbers for asset tracking, meeting IDs for video calls, and short instructions for field staff. Because the payload lives inside the pattern, the code remains readable years later even if the platform that generated it changes.

Frequently Asked Questions

What do the error correction levels mean?

L recovers about 7% of damaged data, M about 15%, Q about 25%, and H about 30%, at the cost of a denser pattern.

Can I change the QR code colors?

Yes, set the foreground and background colors, but keep contrast high so scanners still detect the modules.

How much text can a QR code hold?

Capacity depends on version and error correction; URLs up to a few hundred characters encode comfortably.

Do I need a scanner app to test it?

Most modern phone cameras decode QR codes natively in the camera app, so no extra software is required.

Will the code stop working after a while?

No, the code is static and points to whatever text or URL you encoded; it works until the target URL changes.

Can I generate a QR code for Wi-Fi credentials?

Yes, encode the standard WIFI:T:WPA;S:name;P:pass;; format and phones will offer to join the network.

Is the QR code generated on my device?

Yes, encoding happens entirely in the browser and your text is never sent to a server.

What image format do I get?

You download a PNG at the pixel size you chose, suitable for web use and print.

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