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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13 free tools · runs in your browser

Developer Utilities

Cron, regex, timestamp, URL, JSONPath, XPath, escaping and more.

Regex Tester & DebuggerBuild, test & debug regex with live highlighting.Unix Timestamp ConverterConvert timestamps and dates Cron Expression ParserExplain a cron expression Cron Expression GeneratorBuild a cron expression URL Parser & InspectorBreak a URL into parts JSONPath TesterQuery JSON with JSONPath XPath TesterQuery XML with XPath String EscaperEscape or unescape strings HTML Entities Encoder / DecoderEncode or decode HTML entities HTML to TextStrip HTML to plain text User-Agent ParserParse a User-Agent string CSS Selector TesterTest a CSS selector on HTML robots.txt GeneratorGenerate a robots.txt file

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Calculators (37)Converters (27)Formatters (15)Generators (10)Cryptography (6)Data & Transform (23)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)Format Converters (17)Image Tools (14)Guides