CalculatorsEMI, SIP, GST, percentages and more — instant, accurate, free.ConvertersUnit and number-base converters for everyday engineering.FormattersBeautify, validate and transform text and code.GeneratorsUUIDs, passwords and other things you need on demand.CryptographyHashes and encodings, computed locally in your browser.Data & TransformConvert JSON, CSV, YAML, XML & TOML — and generate code from JSON.CSV ToolsConvert, clean, filter, analyze and transform CSV files — all in your browser.Encoding & DecodingBase64, Base32/58/62, Hex, Octal and Punycode encoders & decoders.Text ToolsCase conversion, counting, sorting, dedupe, reverse and more.ValidatorsValidate JSON, YAML, XML, CSV, TOML and more — with clear error messages.Repair ToolsFix broken JSON, CSV, XML, YAML and other malformed data.Diff & CompareCompare two texts, JSON, CSV, YAML, XML and more — highlight the differences.QR & BarcodesGenerate WiFi, vCard, URL and other QR codes, plus Data Matrix & Aztec barcodes.MinifiersShrink JSON, CSS, JavaScript, XML and SVG by removing whitespace.BeautifiersPretty-print and indent CSS, HTML and JavaScript.Security & TokensJWT, HMAC, key pairs, TOTP, PKCE, secure tokens and password tools.Developer UtilitiesCron, regex, timestamp, URL, JSONPath, XPath, escaping and more.Format ConvertersMarkdown⇄HTML, env/INI/properties⇄JSON, NDJSON, SVG data-URI and more.Image ToolsResize, crop, convert, compress, recolor and extract palettes — all in your browser.
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18 free tools · runs in your browser

QR & Barcodes

Generate WiFi, vCard, URL and other QR codes, plus Data Matrix & Aztec barcodes.

WiFi QR Code GeneratorA QR code that connects phones to your WiFi.vCard QR Code GeneratorA QR code with your contact details (vCard).MeCard QR Code GeneratorA compact MeCard contact QR code.Email QR Code GeneratorA QR code that opens a pre-filled email.SMS QR Code GeneratorA QR code that starts a text message.Phone QR Code GeneratorA QR code that dials a phone number.Geo Location QR Code GeneratorA QR code for map coordinates.WhatsApp QR Code GeneratorA QR code that opens a WhatsApp chat.Telegram QR Code GeneratorA QR code linking to a Telegram profile.Calendar Event QR Code GeneratorA QR code that adds a calendar event.Crypto Payment QR Code GeneratorA QR code for a crypto payment request.OTP Authenticator QR Code GeneratorA QR code for TOTP authenticator apps.SEPA EPC QR Code GeneratorA SEPA credit-transfer (EPC) QR code.QR URL & UTM BuilderA QR code for a URL with UTM tags.GS1 Digital Link QR GeneratorA QR code for a GS1 Digital Link URL.Data Matrix GeneratorGenerate a Data Matrix 2D barcode.Aztec Code GeneratorGenerate an Aztec 2D barcode.Micro QR Code GeneratorGenerate a compact Micro QR code.

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