QR Code Generator and Reader

Generate QR codes and read QR codes from images entirely in your browser.

Your input, generated QR code, and selected image are processed entirely in your browser. They are not uploaded to the server or saved in a history.

Contents of QR code

Input format

Text

0 characters/0 bytes

Generation settings

Error correction level

Output size

Margin (cell)

Foreground color

Background color

Check the contrast between the foreground and background colors.

QR code preview

Once you enter the information, a QR code will be displayed here.

Length0

Data size0 B

Version-

Number of cells-

Please enter your details.

Read QR code from image

Select or drop QR code image Supports PNG, JPEG, WebP, GIF, and BMP. You can also paste images.

No image selected.

Reading result

Please select the image that shows the QR code.

The reading process is completed within the device, and the image is not sent externally.

How to use and precautions

Select an input format and enter the content to be included in the QR code.
For general use, we recommend error correction level M, foreground color black, and background color white.
QR codes are not encrypted. Share passwords and other sensitive information only with the intended recipients.
Before printing or publishing, please check that it can be read using your smartphone or QR code reader.
When scanning, please use an image that shows the QR code large and clear and has sufficient margins.

About this tool

You can save any string of characters as a QR code image, or check the contents of the QR code from the image at hand.

Features

QR code generation for URL, text, and Wi-Fi connection information
Reading QR codes from images that can be displayed in a browser such as PNG and JPEG

How to use

Enter the content you want to generate or select the scanned image.
When generating, set size, error correction, margins, and color.
Check the QR code and use the image or scan result.

Limitations

Images that are too small, blurry, reflective, or have low contrast may be unreadable.
Please make sure that the QR code can be read on another device before saving.

Privacy: The selected files and conversion/analysis results are processed within the browser and are not sent or saved to the Develop Tools server.