QR Code Generator
Generate QR codes from any text or URL instantly.
About This Tool
Create QR codes for URLs, plain text, Wi-Fi credentials, vCards, and more. Download your QR code as a high-resolution PNG image ready for print or digital use. Ideal for marketing materials, product packaging, event tickets, and batch workflows. No sign-up required and no watermarks added.
What you provide
Text or URL to encode
What you get
QR code image (PNG)
How to Use
- Enter your text or URL in the input field.
- The QR code is generated automatically.
- Click Download to save the QR code as a PNG image.
When to Use QR Codes
QR codes (Quick Response codes) have become the practical bridge between physical and digital experiences. Restaurant menus switched to QR codes en masse during 2020 and many kept them — guests scan and view the menu on their phones without any app install. Event check-in systems use QR codes on tickets to speed up gate scanning from minutes per person to under a second. Wi-Fi sharing is another everyday use: encode an SSID and password in the `WIFI:T:WPA;S:MyNetwork;P:secret;;` format and guests connect without typing a single character.
On the product packaging side, QR codes link to instruction manuals, warranty registration, or video tutorials — content that would be impossible to print in full. The standard governing QR code structure and encoding is ISO/IEC 18004, which defines symbol versions 1–40, four error correction levels (L/M/Q/H), and the encoding modes (numeric, alphanumeric, byte, kanji). If you need a QR code that survives partial physical damage — say on a label that might get scratched — use error correction level Q (≈25% recovery) or H (≈30% recovery) at the cost of a denser symbol.
QR Code vs Barcode
| Feature | QR Code | Barcode (1D) |
|---|---|---|
| Data capacity | Up to 7,089 numeric / 4,296 alphanumeric chars | Up to ~20 chars (EAN-13: 13 digits) |
| Dimensions | 2D matrix (square) | 1D linear (striped) |
| Error correction | Built-in (L/M/Q/H levels, up to 30% recovery) | None — any damage causes read failure |
| Scanning angle | Omnidirectional — any orientation works | Must align horizontally with scanner |
| Data types | URLs, text, binary, vCard, Wi-Fi, geo coords | Numeric / limited alphanumeric only |
| Typical use cases | Marketing, payments, ticketing, authentication | Retail price lookup, inventory, shipping |
Common QR Code Mistakes
- Printing too small: the minimum reliable print size is 2×2 cm for standard scanning distances. Smaller codes require high-end scanners and fail on consumer phones.
- Skipping the quiet zone: ISO 18004 requires 4 module widths of white space on all sides. Cutting into this margin is the single most common cause of scan failure in print.
- Low contrast: dark code on dark background, or a logo overlay that covers more than ~30% of the symbol, degrades error correction beyond recovery.
- Encoding a URL with HTTP instead of HTTPS: some browsers will block the redirect and users see a security warning.
- Encoding a URL that will change or expire: static QR codes are permanent. If the destination URL might move, use a redirect service so you can update the target without reprinting.
- Not testing on multiple devices before printing: iOS and Android cameras can behave differently with dense or low-contrast codes — always test a physical printout before production runs.
Frequently Asked Questions
- Is this QR code generator free?
- Yes, completely free with no limits or sign-up required.
- What can I encode in a QR code?
- You can encode any text, URLs, email addresses, phone numbers, Wi-Fi credentials, and more.
- Can I download the QR code?
- Yes, click the Download button to save the QR code as a PNG image.
- What size QR code should I use?
- For digital screens, 200x200 pixels is usually sufficient. For print materials like posters or business cards, use at least 300x300 pixels to ensure scanners can read the code reliably from a distance.
- Do QR codes expire?
- Static QR codes like the ones generated here never expire. The data is embedded directly in the code pattern, so it will work as long as the encoded content (such as a URL) remains valid and accessible.
Learn More
QR Code Best Practices: When and Why to Use Them
Explore QR code standards, use cases, and best practices. Understand error correction levels, sizing, and when QR codes are the right choice.
6 min read