Herramientas de desarrollo
Codificación, hashes, diffs y construcción para desarrolladores.
Base64 Encoder / DecoderEncode and decode Base64, with URL-safe mode.URL Query String BuilderBuild and parse URL query strings.Password Hash GeneratorGenerate and compare password hashes.Code DiffDiff two code snippets with word-level detail.UUID GeneratorGenerate UUID v4 and v7 in batches, with prefixes.Base64 Data URI GeneratorTurn text, CSS, JS, JSON, or SVG into a data:<mime>;base64, URI — UTF-8 safe.Cron Next Run CalculatorSee exactly when your 5-field cron expression fires next — to the minute.JSON Compare (Diff)Deep-diff two JSON documents: added, removed, and changed paths with old → new values.JSON to Code GeneratorInfer a typed data model from a JSON sample — Python, Rust, C#, Java, Go, or GraphQL.JWT Decoder & Expiry CheckerDecode a JWT's header and payload and check its exp claim against the current time.SQL Case ConverterRe-case SQL keywords to UPPERCASE, lowercase, or Title Case — strings untouched.SQL FormatterReformats messy SQL: uppercased keywords, one clause per line, indented subqueries.Unix Timestamp ConverterTurn a Unix timestamp into human-readable local, ISO 8601, and UTC dates in one step.URL ValidatorCheck a URL's scheme, host, port, query, fragment, and length against common failure modes.Free Base64 Data URI GeneratorConvierte texto, CSS, JS, JSON o SVG en un URI data:<mime>;base64, seguro para UTF-8. Gratis.Base64 Data URI Generator OnlineConvierte texto, CSS, JS, JSON o SVG en un URI data:<mime>;base64, seguro para UTF-8. Online.Free Cron Next Run CalculatorVe a qué hora exacta corre tu expresión cron de 5 campos la próxima vez. 100% gratis.Cron Next Run Calculator OnlineVe a qué hora exacta corre tu expresión cron de 5 campos la próxima vez. Online, sin instalar.Free JWT Decoder & Expiry CheckerDecodifica el header y payload de un JWT y verifica su claim exp contra la hora actual. Gratis.JWT Decoder & Expiry Checker OnlineDecodifica el header y payload de un JWT y verifica su claim exp contra la hora actual. Online.Free SQL FormatterReformatea SQL desordenado: keywords en UPPERCASE, cláusulas por línea, subqueries indentadas. Gratis.SQL Formatter OnlineReformatea SQL desordenado: keywords en UPPERCASE, cláusulas por línea, subqueries indentadas. Online.Free Unix Timestamp ConverterConvierte un timestamp Unix en fechas locales, ISO 8601 y UTC en un solo paso. 100% gratis.Unix Timestamp Converter OnlineConvierte un timestamp Unix en fechas locales, ISO 8601 y UTC en un solo paso. Online, gratis.Free UUID GeneratorGenerate UUID v4 and v7 in batches, with prefixes. 100% free — no sign-up, no limits, no watermark.UUID Generator OnlineGenerate UUID v4 and v7 in batches, with prefixes. Use it online — no install, works in any browser.JSON FormatterFormat or validate JSON with 1, 2, or 4-space or tab indentation.JSON ValidatorPaste JSON and get a five-check report: validity, root shape, duplicate keys, depth, and size.MD5 & SHA-256 Hash GeneratorCompute MD5 and SHA-256 digests of any text in your browser.Password GeneratorGenerate a reproducible password from a length, character set, and seed.Random Number GeneratorGenerate a reproducible set of random integers between any two bounds.Regex GeneratorGenerate ready-to-use regular expressions for email, phone, URL, dates, IPv4, ZIP, and semver.URL Encoder & DecoderEncode or decode text as percent-encoding, URL-unsafe form, or Base64.