onul.works

QR Code Generator

Generate QR codes from URLs or text and download the image for sharing, signs, or documents.

⌘ Runs in browser ◴ No data stored ⌁ Free

Concept

QR code generation for quick sharing in offline spaces

Turn URL, text, contact, or Wi-Fi information into a single scan target you can place on signs, printouts, and landing pages for quick access.

Depending on the selected QR type, the encoded payload differs, so the same service can be shared as a webpage link, contact card, or Wi-Fi profile.

You can improve scan reliability by tuning error correction, code size, and foreground/background contrast to match printing and camera conditions.

Recommended use cases

Use URLs on posters, plain text on event notices, contact details for event support, and Wi-Fi information for shared workspace onboarding.

What to tune

Higher error correction improves robustness on damaged or glossy surfaces, larger size helps long-distance scanning, and high contrast improves readability in weak light.

Scan test checkpoints

After downloading, scan with a real phone camera on the final medium to verify that opening links, saving contacts, or connecting to Wi-Fi works correctly.

Generate a few variants and keep the one that performs best with your real devices and print conditions.

QR code preview

How to use

  1. 1 Choose a QR code type: text, URL, email, phone, or Wi-Fi.
  2. 2 Enter the content, size, and foreground/background colors, then check the preview.
  3. 3 Download the finished QR code as a PNG.

Common use cases

  • URL QR code creation
  • Wi-Fi access QR generation
  • QR code PNG download

Frequently asked questions

What QR code content can I create?

You can generate QR codes for text, URLs, email, phone numbers, and WiFi information.

Which QR code options can I change?

You can choose 128, 256, or 512 size, plus dark and light colors.

Can I save the generated QR code?

Yes. You can download the generated QR code preview as a PNG file.

Related workflow

QR Code GeneratorCreate the URL or contact QR first so it can be placed on offline materials. → Barcode GeneratorIf the same material also needs a linear code, prepare a barcode next. → Box Shadow GeneratorFinish the layout by matching the shadow treatment for the QR and barcode card.