What's the maximum amount of data I can put in a QR code?

QR codes can hold up to about 3000 characters, but larger amounts make the QR code denser and harder to scan. For best results, keep URLs under 200 characters and text under 1000 characters. Very long URLs should be shortened first for better scan reliability.

What size should I use for my QR code?

Size depends on use case: Business cards (200-300px), posters/billboards (400-600px), product packaging (300-400px), websites (200-400px). Larger sizes are easier to scan from a distance. For print, use at least 1cm × 1cm (about 38px at 96 DPI).

Can I customize the colors or add a logo to my QR code?

This tool generates standard black-and-white QR codes. For custom colors or logos, use specialized QR code design tools or services. Note: Adding logos or changing colors can reduce scan reliability—test thoroughly before using in production.

Will my QR code work if it's partially damaged?

QR codes have built-in error correction that can recover from up to 30% damage. However, damage to critical areas (corners, alignment patterns) may prevent scanning. For important uses, print QR codes clearly and protect them from damage.

How do I create a QR code for WiFi credentials?

Use this format: WIFI:T:WPA;S:YourNetworkName;P:YourPassword;; (replace with your actual network name and password). Most modern phones will recognize this format and prompt to connect when scanned. Example: WIFI:T:WPA;S:MyWiFi;P:mypassword123;;

What is the best size for a printed QR code?

For reliable scanning, printed QR codes should be at least 2 x 2 cm (about 0.8 x 0.8 inches). For scanning from a distance (like posters or banners), scale up proportionally — a QR code on a poster viewed from 2 meters should be at least 20 x 20 cm. Our tool lets you set the exact output resolution for your needs.

Can I create a QR code for WiFi credentials?

Yes. The QR generator supports WiFi QR codes that let anyone scan and instantly connect to your network. Enter your network name (SSID), password, and encryption type (WPA/WPA2). The person scanning does not need to manually type the password — their phone connects automatically.

No. QR codes generated by PureXio are static — they encode the data directly and never expire. They will work forever as long as the encoded content (URL, text, WiFi network) remains valid. There is no tracking, no link shortener, and no server dependency.

QR Code Generator - Create QR Codes Free

When to Use This Tool

Use this when:

You need to create QR codes for business cards or contact information
You want to share WiFi credentials easily (generate QR code with WiFi format: WIFI:T:WPA;S:NetworkName;P:Password;;)
You're creating marketing materials and need QR codes for URLs or product information
You need QR codes for event tickets or access codes
You want to create QR codes for payment links (PayPal, Stripe, etc.)
You're packaging products and need QR codes linking to product pages or manuals
You need to generate QR codes for vCards (contact cards) or calendar events

Don't use this if:

You need dynamic QR codes that can be updated after creation (use QR code services with APIs)
You require QR codes with custom logos or branding overlays (use specialized QR code design tools)
You need to track QR code scans or analytics (use QR code services with tracking)
You're generating QR codes for very large amounts of data (over 3000 characters may not scan reliably)

What is a QR Code Generator?

A QR code generator creates scannable QR codes from URLs, text, contact information, WiFi credentials, and other data types. Our generator works entirely in your browser — the data you encode never leaves your device.

QR codes have become essential in modern business and daily life: linking physical materials to websites, sharing WiFi passwords without typing, enabling contactless menus in restaurants, adding quick payment links, and encoding business card information for instant contact saving.

This tool is ideal for small business owners creating QR codes for marketing materials and product packaging, restaurant owners generating menu QR codes, event organizers creating ticket verification codes, marketers linking print ads to landing pages, and educators sharing resource links with students.

Compared to online QR generators like QRCode Monkey or QR Code Generator (which track your data and require accounts for advanced features), PureXio generates QR codes entirely client-side. Your URLs, WiFi passwords, and contact information are never sent to any server. The generator supports customization options including size, error correction level, colors, and output format (PNG, SVG).

Generated QR codes can be downloaded in high resolution for print materials or optimized sizes for digital use. The tool includes a real-time preview that updates as you type.

Best for: creating QR codes for URLs, WiFi, contacts, text. Customizable colors and sizes. Download as PNG or SVG. Fully private — data never sent to servers.

How to Generate QR Codes

Enter your text, URL, or data (up to 3000 characters) in the input field

Adjust QR code size (200-800px) and error correction level if needed

Download the QR code as PNG or copy it to use in your projects

Common Use Cases

Generate QR code for business card linking to your LinkedIn profile (200x200px for print)

Create WiFi QR code (WIFI:T:WPA;S:Network;P:Password;;) for easy guest access (300x300px)

Generate QR code for product packaging linking to product page (400x400px for scanning from distance)

Create QR code for event tickets with unique access code or URL (600x600px for large format printing)

Generate QR code for payment link (PayPal.me, Stripe checkout) for easy payments (300x300px)

Create QR code for restaurant menu linking to online ordering page (400x400px for table displays)

Generate QR code for vCard contact information (200x200px for business cards)

Features

Generate QR codes from text, URLs, WiFi credentials, or any data

Customizable size: 200px to 800px for different use cases

Error correction built-in for reliable scanning even if partially damaged

Download as high-quality PNG images

Supports up to 3000 characters of data

100% private—all QR codes generated locally in your browser

No registration or file uploads required

Limitations & Constraints

Maximum data: ~3000 characters. Very long data creates dense QR codes that are harder to scan.

No custom colors or logos. For branded QR codes, use specialized design tools.

No tracking or analytics. QR codes are static—use QR code services for scan tracking.

Print quality matters. QR codes must be printed clearly at sufficient size (minimum 1cm × 1cm).

No dynamic updates. Once generated, QR codes are static. Use QR code services for updatable codes.

Troubleshooting

QR code doesn't scan with my phone

Solution: Ensure the QR code is printed clearly and at sufficient size (minimum 1cm × 1cm). Check lighting—QR codes need good contrast. Clean your phone camera lens. Try scanning from different distances (10-30cm works best). If the QR code is on a screen, increase screen brightness. Prevention: Test QR codes before printing or sharing. Use larger sizes (400px+) for better scan reliability.

QR code is too dense or complex to scan

Solution: Reduce the amount of data in the QR code. Shorten URLs using a URL shortener. For long text, consider splitting into multiple QR codes or using a link that redirects to the full content. Use larger QR code sizes (600-800px) for dense codes. Prevention: Keep data under 1000 characters for best scan reliability.

QR code works on some phones but not others

Solution: Different QR code scanners have varying capabilities. Ensure you're using a modern QR code scanner app (most phones have built-in scanners in the camera app). Some older scanners may not support all QR code formats. Test with multiple devices before finalizing. Prevention: Use standard QR code formats and test with multiple devices.

WiFi QR code doesn't connect automatically

Solution: Verify the WiFi format is correct: WIFI:T:WPA;S:NetworkName;P:Password;; (note the double semicolon at the end). Ensure network name and password don't contain special characters that need escaping. Some phones require WiFi to be enabled before scanning. Prevention: Test WiFi QR codes before printing. Use simple network names and passwords without special characters.

Downloaded QR code is blurry or low quality

Solution: Use larger sizes (600-800px) for better quality, especially for print. Ensure you're downloading as PNG (not JPEG) to avoid compression artifacts. For print, use vector formats if possible, or ensure the QR code is at least 300 DPI when printed. Prevention: Download at maximum size (800px) and scale down if needed rather than scaling up.