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.
ตัวสร้างโค้ด QRCreate 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.ตัวสร้าง URL โค้ด QRTurn any link into a scannable QR code, adding https:// when the scheme is missing and warning about unsafe schemes.ตัวสร้าง Wi-Fi โค้ด QRBuild a standards-compliant WIFI: payload with SSID, password, WPA/WEP/open encryption and hidden-network flag so phones join the network on scan.ตัวสร้าง vCard โค้ด QRGenerate a vCard 3.0 contact QR code with name, organisation, title, phone, email, website, address and note.ตัวสร้าง MECARD โค้ด QRBuild a MECARD contact payload — the compact alternative to vCard that fits in a smaller, lower-version QR symbol.ตัวสร้างความลับโค้ด QRCreate a mailto: QR code with prefilled recipient, subject and body.ตัวสร้าง Phone ตัวเลขโค้ด QRGenerate a tel: URI QR code that opens the dialler with the number already filled in.ตัวสร้าง SMS โค้ด QRBuild an sms: URI QR code with a prefilled message body, encoded for both iOS and Android.ตัวสร้าง Geo Location โค้ด QRCreate a geo: URI QR code from latitude and longitude, validating the coordinate ranges before encoding.ตัวสร้าง Calendar Event โค้ด QRGenerate an iCalendar VEVENT QR code with start, end, title, location and description that phones add straight to the calendar.ตัวสร้าง WhatsApp โค้ด QRBuild a wa.me link QR code with an optional prefilled message, normalising the phone number to digits with country code.ตัวสร้าง Telegram โค้ด QRCreate a t.me link QR code that opens a Telegram chat or channel.ตัวสร้าง Bitcoin Payment โค้ด QRBuild a BIP-21 bitcoin: URI QR code with address, amount, label and message, and check the address shape.ตัวสร้าง Ethereum Payment โค้ด QRGenerate an EIP-681 ethereum: URI QR code with address, value and gas limit, validating the 0x + 40 hex format.ตัวสร้าง UPI Payment โค้ด QRBuild a upi://pay QR code with payee VPA, name, amount, note and currency, validating the VPA and amount formats.ตัวสร้าง JSON โค้ด QRValidate and minify JSON before encoding it, so the payload fits in the smallest possible QR version.ตัวถอดรหัสโค้ด QRUpload 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.ตัวตรวจความถูกต้องโค้ด QRCheck 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.ตัวแยกวิเคราะห์ QR PayloadSplit a raw QR payload into its component fields — Wi-Fi SSID and encryption, vCard name and phone, geo coordinates, URI query parameters.ตัวจัดรูปแบบ QR PayloadBuild a correct standard payload string from JSON fields, applying the escaping rules each format requires.โค้ด QRScanTestRender 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.