qr
Generate, decode, validate and analyse QR codes — text, URL, Wi-Fi, vCard, email, phone, SMS, geo, calendar, crypto and UPI payloads, all in your browser.
二维码生成器Create QR codes for text, URLs, Wi-Fi, vCard, email, phone, SMS, geo, calendar, WhatsApp, Telegram, Bitcoin, Ethereum, UPI and JSON, with error correction, quiet zone, colours and PNG/SVG export.URL 二维码生成器Turn any link into a scannable QR code, adding https:// when the scheme is missing and warning about unsafe schemes.Wi-Fi 二维码生成器Build a standards-compliant WIFI: payload with SSID, password, WPA/WEP/open encryption and hidden-network flag so phones join the network on scan.vCard 二维码生成器Generate a vCard 3.0 contact QR code with name, organisation, title, phone, email, website, address and note.MECARD 二维码生成器Build a MECARD contact payload — the compact alternative to vCard that fits in a smaller, lower-version QR symbol.邮箱二维码生成器Create a mailto: QR code with prefilled recipient, subject and body.Phone 数字二维码生成器Generate a tel: URI QR code that opens the dialler with the number already filled in.SMS 二维码生成器Build an sms: URI QR code with a prefilled message body, encoded for both iOS and Android.Geo Location 二维码生成器Create a geo: URI QR code from latitude and longitude, validating the coordinate ranges before encoding.Calendar Event 二维码生成器Generate an iCalendar VEVENT QR code with start, end, title, location and description that phones add straight to the calendar.WhatsApp 二维码生成器Build a wa.me link QR code with an optional prefilled message, normalising the phone number to digits with country code.Telegram 二维码生成器Create a t.me link QR code that opens a Telegram chat or channel.Bitcoin Payment 二维码生成器Build a BIP-21 bitcoin: URI QR code with address, amount, label and message, and check the address shape.Ethereum Payment 二维码生成器Generate an EIP-681 ethereum: URI QR code with address, value and gas limit, validating the 0x + 40 hex format.UPI Payment 二维码生成器Build a upi://pay QR code with payee VPA, name, amount, note and currency, validating the VPA and amount formats.JSON 二维码生成器Validate and minify JSON before encoding it, so the payload fits in the smallest possible QR version.二维码解码器Upload a PNG, JPG, WebP or GIF and decode the QR code locally with jsQR, then identify the payload type and parse its fields.QRPayloadTypeDetectorIdentify what a decoded QR payload actually is — URL, Wi-Fi, vCard, MECARD, geo, calendar, email, phone, SMS, Bitcoin, Ethereum, UPI, WhatsApp, Telegram, JSON, XML or plain text — and split it into fields.二维码校验器Check a payload before you print it: capacity at the chosen error correction level, URL/email/Wi-Fi/vCard/geo/Bitcoin/Ethereum/UPI/JSON format, unsafe schemes and scannability risks.QR Payload 解析器Split a raw QR payload into its component fields — Wi-Fi SSID and encryption, vCard name and phone, geo coordinates, URI query parameters.QR Payload 格式化工具Build a correct standard payload string from JSON fields, applying the escaping rules each format requires.二维码 ScanTestRender your QR settings and then decode the result locally, comparing it to the original payload, plus quiet zone, contrast, density and capacity checks with a Good / Warning / Risk verdict.