ToolsDiary
Utility tool

QR Code Generator

Create downloadable QR codes for text, links, email, phone numbers and Wi-Fi details.

Free to use No sign-up Browser-based
Tool workspace

Use the tool

Privacy-conscious: this tool runs in your browser where practical, so your working input stays on your device unless the page explicitly says otherwise.

Create your QR code

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Enter content and generate a QR code.

Preview

For reliable scanning, keep strong contrast and test the final QR code before printing or publishing it.

Continue your workflow

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Learn the workflow

QR Code Size, Error Correction and Printing: A Practical Reliability Guide

Choose QR dimensions, quiet space, contrast and error correction that improve real-world scanning on screens, labels, posters and printed material.

Read guide →

What this tool does

Generate a QR code directly in your browser for a website link, plain text, email address, phone number or Wi-Fi network. Choose the image size and colors, preview the QR code, then download it as a PNG without sending the encoded content to ToolsDiary.

QR codes are a convenient way to move short pieces of information from a printed page or one screen to another device. A larger image does not increase the amount of data stored in the code, but it can make the code easier to print cleanly. Strong contrast between the QR pattern and its background is important for reliable scanning.

Useful for

  • Create a QR code for a website or landing page.
  • Share short text, email addresses or phone numbers in a scannable form.
  • Generate a Wi-Fi QR code so guests can copy network details more easily.
  • Download a PNG QR image for print, presentations, signs or digital content.

How to use it

  1. Choose the type of information you want to encode.
  2. Enter the required text, URL, contact detail or Wi-Fi information.
  3. Choose the QR image size and colors, then select Generate QR code.
  4. Test the preview with a QR scanner and download the PNG when it scans correctly.

Before you use the result

  • Scan the finished code before publishing, and test the actual printed size if it will appear on packaging, signs or cards.
  • Keep a clear quiet area around the QR pattern and avoid cropping the outer margin.
  • Use strong foreground/background contrast; dark-on-light is the safest starting point.
  • For Wi-Fi QR codes, test the network name, security type and password on a device that is not already connected.

Edge cases and limitations

  • Long payloads create denser QR patterns that can be harder to scan when printed very small.
  • Very low contrast, blur, compression artifacts or physical damage can prevent reliable scanning even when the data is valid.
  • A QR code can faithfully encode an unsafe or mistyped destination, so verify the underlying URL or contact detail as well as the scan itself.

Practical tips

  • Keep the background light and the QR pattern dark for the best scanning reliability.
  • Test printed QR codes at the actual size you plan to use before producing a large batch.
  • Use a complete URL including https:// when generating a website QR code.
  • The encoded content is processed locally in your browser and is not sent to ToolsDiary.

Frequently asked questions

Does ToolsDiary store the content I put in the QR code?

No. QR generation happens in your browser. The text or link you enter is not sent to ToolsDiary.

Can I generate a QR code for Wi-Fi?

Yes. Enter the network name, password and security type. You can also mark a network as hidden when needed.

Why will my QR code not scan?

Low contrast, a very small printed size, blur, heavy cropping or too much encoded text can reduce reliability. Try black on white, a larger size and shorter content.

Can I download the QR code?

Yes. The generated QR code can be downloaded as a PNG image.

Can I use a custom color?

Yes, but dark foreground and light background colors are the safest choice. Always test the result after changing colors.