Free QR Code Generator
Generate QR codes from text or URLs — 100% free in your browser.
Free How to use QR Code Generator
Developer utilities perform pure text transformations—JSON formatting, Base64 encoding, hash generation, JWT decoding, regex testing, and code minification—entirely in JavaScript within your browser. No snippets, tokens, or configuration payloads are sent to a backend because these tools operate on strings already present in the page. That design is ideal when you are inspecting production JWTs, hashing passwords for comparison, or minifying proprietary templates: your input stays in local memory and is discarded when you navigate away. The tools are deterministic and offline-capable once the page has loaded.
What QR Code Generator does and when to use it
QR Code Generator encodes URLs, Wi-Fi credentials, vCard contact data, and plain text into scannable matrix barcodes for print materials, event badges, and packaging. Marketers bridge offline posters to landing pages; IT teams share network join details without dictating passwords.
Customizable error correction lets logos occupy center space while remaining readable. Vector-friendly PNG or SVG downloads scale to billboards or business cards.
How this tool works
A QR library constructs modules from input bits, applies Reed-Solomon error correction, and renders to canvas or SVG in the browser. No payload is sent to external QR APIs, keeping unreleased campaign URLs private until print.
Capacity limits rise with version and drop with higher error correction. UTF-8 text is supported for international characters.
Step-by-step instructions
Enter the text or URL, choose size and error correction level, and generate the code. Test scan with your phone from the screen before printing, then download the image for your layout tool.
Tips and best practices
Use medium or high error correction for codes that will be partially covered by branding.
Always include a human-readable URL below marketing QR codes for accessibility.
Learn more: Base64, Hashes, JWTs, and Developer Encoding Tools
QR Code Generator FAQ
Answers to common questions about QR Code Generator.
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