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.
Learn
Blog

23 free tools · runs in your browser

Data & Transform

Convert JSON, CSV, YAML, XML & TOML — and generate code from JSON.

JSON to CSV ConverterFlatten a JSON array of objects into CSV.CSV to JSON ConverterTurn CSV rows into a structured JSON array.CSV to Markdown TableConvert CSV into a GitHub-flavored Markdown table.JSON to YAML ConverterConvert JSON into readable YAML.YAML to JSON ConverterParse YAML into formatted JSON.JSON to XML ConverterConvert JSON into formatted XML.XML to JSON ConverterParse XML into structured JSON.JSON to TOML ConverterConvert a JSON object into TOML.TOML to JSON ConverterParse TOML into formatted JSON.JS Object to JSON ConverterTurn a loose JS/JSON5 object into strict JSON.CSS to JS Object ConverterConvert CSS rules into a JS style object.JS Object to CSS ConverterConvert a JS style object back into CSS.HTML to JSX ConverterConvert HTML into React-ready JSX.SVG to JSX ConverterConvert an SVG into a JSX element.JSON to TypeScript ConverterGenerate TypeScript interfaces from JSON.JSON to Go Struct ConverterGenerate Go structs from JSON.JSON to Rust (Serde) ConverterGenerate Rust Serde structs from JSON.JSON to Python ConverterGenerate Python dataclasses from JSON.JSON to Java ConverterGenerate Java classes from JSON.JSON to Kotlin ConverterGenerate Kotlin data classes from JSON.JSON to C# ConverterGenerate C# classes from JSON.JSON to Swift ConverterGenerate Swift structs from JSON.JSON to JSON Schema ConverterGenerate a JSON Schema from JSON.

Explore other categories

Calculators (37)Converters (27)Formatters (15)Generators (10)Cryptography (6)CSV Tools (98)Encoding & Decoding (21)Text Tools (7)Validators (12)Repair Tools (12)Diff & Compare (18)QR & Barcodes (18)Minifiers (5)Beautifiers (3)Security & Tokens (25)Developer Utilities (13)Format Converters (17)Image Tools (14)Guides