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QR Code Generator

Generate QR codes for URLs or text instantly — free online QR code creator with error correction levels and size options. No sign-up. Runs entirely in your browser.

How QR Codes Work

A QR code (Quick Response code) is a two-dimensional barcode that stores data as a pattern of black and white squares. When you scan it with your phone camera or a QR code reader, the pattern is decoded to reveal the original URL or text.

QR codes can encode up to 4,296 characters in UTF-8. For URLs, most links fit well within this limit. For longer text, you may need to shorten URLs or split into multiple QR codes.

Error Correction

Reed-Solomon error correction (L/M/Q/H) allows the QR code to be readable even if up to 30% of its data is damaged. L (7%) is safest and produces the smallest QR code; H (30%) is most robust but produces larger images.

Size Selection

Larger QR codes are easier to scan from a distance because the data modules are physically larger. For use cases like sharing a website link, 256×256 or 384×384 is sufficient. For printed materials or small items, you might need 512×512.

Encoding

QR codes use UTF-8 encoding, which supports most languages and characters including emojis. However, not all QR scanners support extended Unicode equally — some may have issues with certain characters or emojis.

Common Use Cases

  • Website links — Create QR codes for your website, social media profiles, or landing pages to share easily with mobile users.
  • Contact information — Encode your email, phone number, or vCard details so people can scan to save your contact info directly to their phone.
  • Wi-Fi login — Share Wi-Fi network credentials (SSID and password) via QR code for guests or customers — convenient for cafes, hotels, or events.
  • Product URLs — QR codes on product packaging link directly to product pages, reviews, or purchase options — standard in e-commerce.
  • Text messages — Encode short messages, promo codes, or discount offers that you want to share on printed materials or social media.
  • Event tickets — Create QR codes for event tickets with embedded data or URLs — attendees can scan to check in or get directions.

Frequently Asked Questions

How do I create a QR code?▾
Enter a URL or text in the field above and the QR code is generated instantly. You can also adjust the error correction level and size. The QR code updates automatically as you type or paste content.
What are the error correction levels?▾
QR codes can encode up to 30% of their data capacity with redundancy. The error correction levels indicate how much of that 30% capacity is used: L (7%), M (15%), Q (25%), H (30%). Higher levels add more error correction but produce larger QR codes. For most use cases, L or M is recommended.
What size should I choose?▾
Use 256×256 for general use — it balances readability and scan reliability. Use 384×384 or 512×512 if the QR code needs to be scanned from farther away or if you plan to print it. Smaller sizes (128×128) are only recommended for very short URLs or text.
Does this tool store my data?▾
No. The QR code is generated entirely in your browser using JavaScript. Your URL or text is never sent to any server, stored, logged, or processed outside your device.
Can I use the generated QR code commercially?▾
Yes. The QR code is a standard ISO/IEC 18004 format image that you can use freely for personal or commercial purposes. There are no restrictions on usage.
What file format is the QR code?▾
The QR code is downloaded as a PNG image file. PNG is the most widely supported format for QR codes across all devices and operating systems. You can also right-click and save as any image format supported by your browser.
Does the QR code work with special characters?▾
Yes, the QR code supports UTF-8 encoding, which includes most special characters and emojis. However, extremely long text with many special characters may produce QR codes that some QR scanners cannot read. If you encounter issues, try reducing the text length.
Can I generate QR codes in bulk?▾
Not with this free tool. For bulk QR code generation, you would need a paid tool or batch processing service. This tool is designed for single QR codes with options to customize the output.