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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Validators

Validate JSON, YAML, XML, CSV, TOML and more — with clear error messages.

JSON ValidatorValidate JSON and see errors YAML ValidatorValidate YAML and see errors XML ValidatorValidate XML well-formedness CSV ValidatorValidate CSV column counts TOML ValidatorValidate TOML and see errors INI ValidatorValidate INI file syntax .env ValidatorValidate dotenv files Properties ValidatorValidate Java .properties CSS ValidatorLightweight CSS structure check SCSS ValidatorLightweight SCSS structure check SVG ValidatorValidate SVG markup Markdown ValidatorBasic Markdown sanity check

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