Yes. All 42 tools are 100% free with no signup, no ads in your face, and no hidden limits. The core tools will always be free.

Do AHX tools upload my data to a server?

No. Every tool runs entirely in your browser using JavaScript. Your data never leaves your device.

Can I use AHX offline?

Yes. Once the page has loaded, every tool works without an internet connection. AHX is installable as a PWA.

Free QR Code Generator Guide — WiFi, URL, Email

QR codes are everywhere — restaurant menus, business cards, product packaging, WiFi sharing, and more. This guide covers everything you need to know about generating QR codes for free, including WiFi QR codes, URL QR codes, and contact QR codes.

What is a QR code?

A QR (Quick Response) code is a two-dimensional barcode that can store URLs, text, WiFi credentials, contact information, and more. When scanned with a phone camera, it instantly performs the encoded action — opening a website, connecting to WiFi, or composing an email.

How to generate a WiFi QR code

• Open the AHX QR Code Generator
• Select the "WiFi" preset
• Enter your WiFi network name (SSID)
• Enter your WiFi password
• Select encryption type (WPA, WEP, or None)
• Customize colors and size if desired
• Download as PNG or SVG

When someone scans your WiFi QR code, their phone will automatically connect to your network — no need to type a password. This is perfect for guests, cafes, and offices.

QR code error correction levels

• L (Low): 7% of data can be restored — smallest QR code
• M (Medium): 15% of data can be restored — recommended for most uses
• Q (Quartile): 25% of data can be restored — good for printed materials
• H (High): 30% of data can be restored — best for dirty or damaged environments

The AHX QR Code Generator supports all four error correction levels, custom colors, and PNG/SVG export. It runs entirely in your browser — no data is sent to any server.