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图片工具 9
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图片 ResizerResize images locally without uploading them.图片 Format 转换器Convert PNG ↔ JPEG ↔ WebP in the browser.图片压缩工具Re-encode JPEG/WebP with a quality slider and size preview.图片 to Base64 转换器Embed images as Base64 data URIs.Base64 to 图片转换器Preview and download an image from Base64 data.图片颜色选择器Pick pixel colors from any uploaded image.SVG to JPG 转换器Convert SVG to JPG right in the browser — the background is flattened to white (or any colour you pick), the size follows your request, and the vector file is only ever opened inside your own tab.ScanforEmbedded 文件Scans the data for potential embedded files by looking for magic bytes at all offsets. This operation is prone to false positives. WARNING: Files over about 100KB in size will take a VERY long time to process.
颜色工具 10
十六进制颜色选择器Interactive picker with HEX, RGB and HSL output.颜色 Code 转换器Convert between HEX, RGB, HSL and named colors.颜色对比度检查器(WCAG)Verify text contrast ratios against WCAG AA/AAA.颜色调色板生成器Shades, tints and complementary schemes from one color.随机颜色生成器Batch random colors with copyable codes.CSS 命名颜色参考表All 148 CSS color names with codes and previews.
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颜色混色器Blend two colours in sRGB, HSL or perceptual CIE Lab and generate a ramp with contrast ratios.CMYK 转换器Convert between HEX/RGB/HSL and CMYK for print, in both directions.CMYKtoRGBConvert print CMYK percentages back to screen HEX, RGB and HSL.ParsecolourcodeConverts a colour code in a standard format to other standard formats and displays the colour itself. Example inputs #d9edf7 rgba(217,237,247,1) hsla(200,65%,91%,1) cmyk(0.12, 0.04, 0.00, 0.03)
qr 23
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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.Generate 二维码Generates a Quick Response (QR) code from the input text. A QR code is a type of matrix barcode (or two-dimensional barcode) first designed in 1994 for the automotive industry in Japan. A barcode is a machine-readable optical label that con
barcode 5
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EAN-13 Barcode 生成器Generate a retail EAN-13 barcode from 12 digits — the 13th check digit is computed for you — and export it as SVG or PNG.UPC-A Barcode 生成器Generate a US retail UPC-A barcode from 11 digits with the check digit added automatically, ready for print as SVG or PNG.Code 128 Barcode 生成器Encode full ASCII text, serial numbers and tracking codes in the compact, high-density Code 128 symbology with automatic subset switching.Code 39 Barcode 生成器Create industrial Code 39 barcodes from letters, digits and - . $ / + % — the wide, rugged symbology used on asset and inventory labels.