JSON Formatter & Validator
Validate JSON and format it for reading or compact transfer.
DeveloperDeveloper tools
QR Code Generator
Create a downloadable QR code from text or a URL.
Your workspaceProcessed in your browser
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How to use qr code generator
- Enter the exact destination in Text or URL.
- Set Image size from 128 to 1024 pixels and choose Error correction.
- Select Create QR code, download the PNG, and test the final placement with a scanner.
Work through an example
Generate a PNG QR code with a known destination, choose size and correction settings, and verify the final printed version.
Create and test a QR code for a printed link →Formats, privacy, and practical limits
This tool processes the values you enter in your browser. No account or upload to ERITHRA is required.
Files and generated results exist only for this tab session. Download any result you want to keep before leaving the page. Browsers may use temporary memory or disk cache while processing.
Frequently asked questions
What is the input limit?
The tool accepts up to 1500 UTF-8 bytes, which is not necessarily 1500 visible characters.
Does the generator check that a URL is safe or remains available?
No. It encodes the entered text. Visit and maintain your destination separately, and test the downloaded code before distribution.