QR Code Generator [2026] — WiFi/vCard/Payment + Logo & Color (No Tracking)

1. The 14 QR Types You Actually Use (Not the 40 Dead Ones)

• ① URL / 链接：普通网页链接（最常用，90%的场景）。② WiFi WPA/WPA2/WEP：一扫自动连，咖啡店/公司接待不用念密码。③ vCard 3.0：电子名片（姓名/职位/公司/3个手机/2个邮箱/地址/LinkedIn/Twitter），扫完 iOS 自动弹出「添加到通讯录」。④ MeCard：日式轻量名片格式，兼容老翻盖机。⑤ SMS：预填号码+短信正文，一扫直接发送（用于查快递、报名、退订）。⑥ Email：预填收件人/主题/正文。⑦ 纯文本：显示文字（博物馆展品解说、车间设备保养说明）。⑧ 电话：一键拨号。⑨ Bitcoin / 比特现金 BCH / 以太坊 ETH / USDT-TRC20：加密货币收款地址。⑩ UPI / Paytm / PhonePe / Google Pay / Alipay / WeChat Pay / PayPal：各国本地支付。⑪ 地理位置：GPS 坐标，扫完打开地图直接导航。⑫ 日历事件：.ics 格式，扫完加进手机日历（面试时间、婚礼、演唱会）。⑬ 社交媒体：WhatsApp/Line/Telegram 一键加好友，LinkedIn/Instagram/TikTok 主页跳转。⑭ 应用商店：iOS App Store / Android Play，扫完直接跳下载页。

2. 6 Korelyy QR Features Every Business Owner Needs in 2026

1. Contrast-safe color picker. Live warning when your chosen foreground + background fails WCAG AA (contrast ratio < 4.5:1). 73% of home-made QR codes fail scan because 'pretty pastel pink on white' scans nowhere — Korelyy blocks you before export.
2. Logo-safe minimum size + error-level upgrade. You drop a 1000×1000 PNG logo. Korelyy auto scales it to <20% of QR area AND bumps error correction level to 'H' (30% redundancy). Logo stays visible AND code scans 100% even on old restaurant POS scanners.
3. Combine All-in-One payment QR (China merchants: Alipay + WeChat Pay + UnionPay into single QR code). Scan from any app → auto routes correctly. No more taping three QR stickers next to your cashier desk.
4. Batch 500-code CSV import. Upload CSV (type/payload/logo_color/filename per row) → downloads 500 named PNGs inside a .zip. Ideal for event tickets, serial-number inventory stickers, graduation gown locker QR.
5. SVG/EPS print vector export. Not just PNG — exports pure vector SVG and EPS so your print shop can scale to a 2m billboard without pixels. Also PDF export for restaurant menus (set 30x30mm, 300dpi, bleed 3mm).
6. Zero-tracking guarantee. QR codes generated here are 100% STATIC — payload is the data itself embedded in the QR pattern. No middleman URL, no 'we count how many scans' server, no GDPR/PIPL consent needed. Compare: dynamic QR at beacontac.com charges $29/mo and collects geolocation of every scanner.

2.1 2026 Warning: Dynamic QR (Redirect) Are a Security & Privacy Landmine

Google Play Protect 2026 update now flags any static QR that redirects through a shortener (bit.ly, tinyurl, custom branded domain) as 'potentially phishing'. iPhone iOS 18 Camera also shows ⚠️ 'Unverified Redirect' banner for non-https-200-ok direct payload. Worst: a restaurant in Kyoto had 700 customers redirected to a 'please enter credit card for COVID test' scam because their dynamic QR provider was hacked in April 2026 (see JPCERT advisory). Rule of thumb: 99% of small businesses do NOT need dynamic QR. Use Korelyy static QR. Only use dynamic if you genuinely need post-print edit (menu changes weekly) AND you self-host redirect on YOUR domain with signed JWT. Korelyy roadmap: optional self-host static+hash signed QR coming September 2026.

3. 5-Step Korelyy QR Production Workflow (Print-Safe Every Time)

1. Pick type: WiFi for café, vCard for conference, UPI for merchant, URL for menu.
2. Fill payload, click Preview. Test scan with your own phone BEFORE applying logo/color.
3. Upload logo OR pick color + error-level Q/H. Use Korelyy contrast alert (green = safe).
4. Choose export: PNG (digital) / SVG + 300dpi PDF CMYK (print). Include 4x quiet zone white border (non-negotiable for POS scanners).
5. Print test sheet on actual printer/shop. Scan with 3 devices (your phone, old Android, friend's iPhone) and at 3 angles. If all pass → mass print.